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PENTAIR>>Products>>Heaters&Heat Pumps>>Inground Heaters>>MasterTemp Page 1 of 2 DEALER LOCATOR ESPANOL SE PENTAIR Ate PRODUCTS I SAVE ENERGY I SUPPORT I NEWS& MEDIA I CONTACT US I DEALER RESOURCES PRODUCTS MAST E RT G M P® Aboveground Systems Automation s Cleaners ^� Filters Heaters& Heat Pumps Overview A Inground Heaters Overview (E4cc' 5 elect. MasterTemp ^-�•4, ,�N KWAIa MasterTemp 125 High Performance Heater MasterTemp and Max-E-Therm HIGH PERFORMANCE ECO-FRIENDLY HEATERS Accessories MasterTemp' offers all the efficiency, convenience and reliability features Max-E-Therm High Performance you want in a pool heater, plus a lot more. As easy to use as our home Heater Y P P Y Y MiniMax Vent Kits and heating system, plus, user-friendly indicator lights make system operation Accessories Aboveground Heaters and monitoring a snap. The compact design and super quiet operation won't Heat Pumps intrude on your poolside leisure time. Heavy-duty (HD) unit with cupro- Lighting nickel exchanger stands up to the harshest of applications, like low pH, high Maintenance&Safety Equipment flow or heavy use. Pumps Sanitizers FEATURES Valves Water Features o Heats up fast so no long waits before enjoying your pool or spa White Goods • Best-in-class energy efficiency* COMMERCIAL PRODUCTS • Manual gas shut-off when service is required REPLACEMENT PARTS ' Eco-friendly MasterTemp° is certified for low NOx emission and outperforms industry standards • Rotating digital display allows for easy viewing e Tough, rustproof exterior handles the heat and weathers the elements Note: The MasterTemp Heater is certified for Low NOx emissions. * Standard Copper Heat Exchanger 84% Efficient. Heavy-duty (HD) Cupro-Nickel Heat Exchanger 82% Efficient. httD://WWW.Dentairr)ool.com/Droducts/heaters-and-heat-numDs-inexound-heaters-mastertemD-95.htm 04/18/2014 PENTAIR MASTE-RTEMP° POOL AND SPA HEATER INSTALLATION AND USER'S GUIDE FOR YOUR SAFETY - READ BEFORE OPERATING If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, personal injury or loss of life. For additional free copies of this manual; call (800) 831-7133. FOR YOUR SAFETY-This product must be installed and serviced by authorized personnel,qualified inpool/spa heater installation. Improper installation and/or operation can create carbon monoxide gas and flue gases which can v cause serious injury,property damage,or death. For indoor installations,as an additional measure of safety, Pentair Aquatic Systems strongly recommends installation of suitable Carbon Monoxide detectors in the vicinity of this appliance and in any adjacent occupied spaces. Improper installation and/or operation will void the warranty. 120/240 VAC NATURAL GASILP GAS Models Natural Propane 175K BTU/HR 460792 460793 Y � 200K BTU/HR(ASME) 461000 461001 200K BTU/HR 460730 460731 •"' � 200K BTU/HR(HD ASME) 461032 — R � x 250K BTU/HR 460732 460733 250K BTWHR (HD) 460806 250K BTU/HR(ASME) 460771 460772 ` V', 250K BTU/HR HD ASME 461020 300K BTU/HR 460734 460735 s20. 400K BTU/HR 460736 460737 �M, 7"Y' 400K BTU/HR (HID) ( ) 460805 ` A 400K BTU/HR(ASME) 460775 460776 400K BTU/HR(HD ASME) 461021 • � w• ,�aA u' S� .. ,. fid' Y 9 u W-41'q mproper installation, adjustment, alteration, service or maintenance can cause � � propertydamage, personal injury or death. Installation and service must be performed by a qualified installer, service agency or the gas supplier. WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance. FOR • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor's phone. YOUR Follow the gas supplier's instructions. SAFETY If you cannot reach your gas supplier, call the fire department. DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or other appliances. Pentair Water Pool and Spa,Inc. 1620 Hawkins Ave.,Sanford,NC 27330•(800)831-7133 or(919)566-8000 10951 W.Los Angeles Ave.,Moorpark,CA 93021 -(800)831-7133 or(805)553-5000 4 Section 1. Heater Identification Information Section • ' • • • To identify the heater, see rating plate on the inner front panel of the heater. There are two designators for each heater,one is the Model Number and the other is the Heater Identification Number(HIN). a. Heater Identification Number (HINT The following example simplifies the identification system: 1) MT : MasterTemp 2) Model Size : (175,200,250,300 or 400) : Input rating (Btu/hr) X 1000 3) Fuel Type : (LP=Propane gas or NA=Natural gas) 4) Construction : (STD=Standard Model) (HD =Heavy Duty Model) (ASME=ASME.Certified Model) (HD ASME =Heavy Duty ASME Model) HEATER IDENTIFICATION INFORMATION — (HIN) r H. I. N. HEATER IDENTIFICATION NUMBER ID DESIGNATOR FOR PENTAIR AQUATIC SYSTEMS MASTERTEMP®HEATERS Example: 1 2 3 4 . STD = STANDARD MODEL TT7 HD = HEAVY DUTY MODEL CONSTRUCTION = ASME = ASME CERTIFIED MODEL HD ASME = HEAVY DUTY ASME MODEL FUEL TYPE _ NA = NATURAL GAS LP = PROPANE GAS MODEL SIZE = BTU INPUT in 1000 of BTU/HR IIS MT = MASTERTEMP I MASTERTEMPO Pool and Spa Heater Installation and User's Guide Rev. M 1-8-15 Section 2. Warning and Safety Instructions 5 Section • and Safety Instructions IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS SAVE THESE INSTRUCTIONS v MASTERTEMP® Pool and Spa Heater Congratulations on your purchase of the MasterTemp Pool and Spa Heater. Proper installation and service of your new heating system and correct chemical maintenance of the water will ensure years of enjoyment.The MasterTemp heater is a compact, lightweight, efficient, induced-draft, gas fired high performance pool and spa heater that can be directly connected to schedule 40 PVC pipe. The MasterTemp heater also comes equipped with the Pentair multifunction temperature controller which shows, at a glance, the proper functioning of the heater. All MasterTemp heaters are designed with a direct ignition device, HSI (hot-surface ignition), which eliminates the need for a standing pilot. The MasterTemp heater requires an external power source (120/240 VAC 60 Hz)to operate. SPECIAL INSTRUCTIONS TO OWNER: Retain this manual for future reference.This instruction manual provides operating instructions,installation and service information for the MasterTemp high performance heater.The information in this manual applies to all MasterTemp heater models. READ AND REVIEW THIS MANUAL COMPLETELY, it is very important that the owner/installer read and understand the section covering installation instructions,and recognize t the local and state codes before installing the MasterTemp heater.Its use will reduce service calls and chance of injury and will lengthen product life.History and experience has shown that most heater damage is caused by improper installation practices. IMPORTANT NOTICES For the installer and operator of the MasterTemp heater: The manufacturer's warranty may be void if, for any reason,the heater is improperly installed and/or operated. Be sure to follow the instructions set forth in this manual.If you need any more information or if you have any questions regarding to ihis pool heater, please contact Pentair Aquatic Systems at(800)831-7133. WARRANTY INFORMATION The MasterTemp pool and spa heater is sold with a limited factory warranty. Specific details are described on the warranty registration card which is included with the product. Return the warranty registration card after filling in the serial number from the rating plate inside the heater. Pentair Aquatic Systems high standards of excellence include a policy of continuous product improvement resulting in your state-of-the-art heater. We reserve the right to make improvements which change the specifications of the heater without incurring an obligation to update the current heater equipment. These heaters are designed for the heating of chlorine, bromine or salt system swimming pools and spas or in non-stationary installations, and should never be employed for use as space heating boilers or general purpose water heaters. The manufacturer's warranty may be void if, for any reason, the heater is improperly installed and/or operated. Be sure to follow the instructions set forth in this manual. v ©CAUTION OPERATING THIS HEATER CONTINUOUSLY AT WATER TEMPERATURE BELOW 68° F. WILL CAUSE HARMFUL CONDENSATION AND WILL DAMAGE THE HEATER AND VOID THE WARRANTY. Do not use the heater to protect pools or spas from freezing if the final maintenance temperature desired is below 68° F.,as this will cause condensation related problems. Rev.M 1-8-15 MASTERTEMP® Pool and Spa Heater Installation and User's Guide 6 Section 2. Warning and Safety Instructions CODE REQUIREMENTS Installation must be in accordance with all local codes and/or the latest edition of the National Fuel Gas Code, ANSI:Z223.1 and the.latest edition of the National Electrical Code,NFPA 70(US). Installation in Canada must be in accordance with the latest CAN/CGA-13 149.1 or.2 and CSA C22.1 Canadian Electric Code,part 1. The heater,when installed,must be electrically grounded and bonded in accordance with local codes,or, in absence of local codes,with the National Electrical Code,ANSI/NFPA70 (US)or in Canada in accordance with the Canadian Electric Code,part l.as applicable. DESIGN (# Tm S0TM ®DANGER CARBON MONOXIDE GAS IS DEADLY—Exhaust from this pool heater contains toxic levels of carbon monoxide,a dangerous, poisonous gas you cannot see or smell. CONSUMER INFORMATION AND SAFETY AWARNING The U.S. Consumer Product Safety Commission warns that elevated water temperature can be hazardous. See below for water temperature guidelines before setting temperature. 1. Spa or hot tub water temperatures should never exceed 1.04°F(40°Q. A temperature of 100°F(38°C)is considered safe for a healthy adult. Special caution is suggested for young children. 2. Drinking of alcoholic beverages before or during spa or hot tub use can cause drowsiness which could lead to unconsciousness and subsequently result in drowning. 3. Pregnant women beware! Soaking in water above 102°F(39°C)can cause fetal damage during the first three months of pregnancy (resulting in the birth of a brain-damaged or deformed child). Pregnant women should stick to the 100°F(38°C)maximum rule. 4. Before entering the spa or hot tub,the user should check the water temperature with an accurate thermometer. Spa or hot tub thermostats may err in regulating water temperatures by as much as 4°F(2.2°Q. 5. Persons with a medical history of heart disease,circulatory problems,diabetes or blood pressure problems should obtain their physician's advice before using spas or hot tubs. 6. Persons taking medication which induce drowsiness,such as tranquilizers,antihistamines or anticoagulants should not use spas or hot tubs. AWARNING Should overheating occur or the gas supply fail to shut off,turn off the manual gas control valve to the heater. Do not use this heater if any part has been under water. Immediately call a qualified service technician to inspect the heater and to replace any part of control system and gas control which has been under water. MASTERTEMP3 Pool and Spa Heater Installation and User's Guide Rev. M 1-8-15 Section 2. Warning and Safety Instructions 7 SAFETY INFORMATION The MasterTemp@ pool heaters are designed and manufactured to provide many years of safe and reliable service when installed,operated and maintained according to the information in this manual.Throughout the manual,safety warnings and cautions are identified by the'A"symbol. Be sure to read and comply with all of the warnings and cautions. © DANGER — CARBON MONOXIDE GAS IS DEADLY READ OWNERS MANUAL COMPLETELY BEFORE OPERATING THIS PRODUCT MUST BE INSTALLED AND SERVICED BY A PROFESSIONAL SERVICE TECHNICIAN, QUALIFIED IN POOL HEATER INSTALLATION. Some jurisdictions require that installers be licensed. Check with your local building authority about contractor licensing requirements. Improper installation and/or operation could create carbon mohoxide gas and flue gases which could cause serious injury or death. Improper installation and/or operation will void the warranty. Exhaust from this pool heater contains toxic levels of carbon monoxide,a dangerous,poisonous gas v you cannot see or smell. Symptoms of carbon monoxide exposure or poisoning include dizziness, headache, nausea,weakness,sleepiness, muscular twitching,vomiting and inability to think clearly. IF YOU EXPERIENCE ANY OF THE ABOVE SYMPTOMS, IMMEDIATELY TURN OFF THE POOL HEATER,LEAVE THE VICINITY OF THE POOLORSPAANDGETINTO FRESH AIRIMMEDIATELY. THE POOL HEATER MUST BE THOROUGHLY TESTED BY A GAS PROFESSIONAL BEFORE ` RESUMING OPERATION. EXCESSIVE CARBON MONOXIDE EXPOSURE CAN CAUSE BRAIN DAMAGE OR DEATH. NEVER use this pool heater indoors without specified ventilation system(and properly installed vent pipe). NEVER use this pool heater in the home or in partly enclosed areas such as garages), unless the specified ventilation system is used. If used outdoors, install far from open windows, doors, vents and other openings. Pentair strongly recommends that all vents, pipes and exhaust systems be initially and periodically tested for proper operation.This testing can be accomplished by using a hand-held carbon monoxide meter and/or by consulting with a gas professional. Pool heaters must be used in conjunction with carbon monoxide detectors installed near the pool heater. The carbon monoxide detectors must be periodically inspected for proper operation so as to insure continued safety. Broken or malfunctioning carbon monoxide detectors must be replaced immediately. © WARNING —FOR YOUR SAFETY This product must be installed and serviced by a professional service technician, qualified in pool v heater installation. Some jurisdictions require that installers be licensed. Check with your local building authority about contractor licensing requirements. Improper installation and/or operation could create carbon monoxide gas and flue gases which could cause serious injury or death.Improper installation and/or operation will void the warranty. © WARNING —This heater is equipped with an unconventional gas control valve that is factory set with a manifold pressure of -.2 inches wc. Improper installation, adjustment, alteration, service or maintenance.can cause property damage, personal injury or loss of life. Installation or service must be performed by a qualified installer, service agency or the gas supplier. If this control is replaced, it must be replaced with an identical control. Do not attempt to adjust the gas flow by adjusting the regulator setting. Rev.M 1-8-15 MASTERTEMP" Pool and Spa Heater Installation and User's Guide 8 Section 2. Warning and Safety Instructions SAFETY INFORMATION, (cont'd.) A WARNING —Risk of fire or explosion from incorrect fuel use or faulty fuel conversion. Do not try to run a heater set up for natural gas on propane gas or vice versa. Only qualified service technicians should attempt to convert heater from one fuel to the other. Do not attempt to alter the rated input or type of gas by changing the orifice. If it is necessary to convert to a different type of gas,consult your Pentair dealer. Serious malfunction of the burner can occur which may result in loss of life.Any additions, changes, or conversions required in order for the appliance to satisfactorily meet the application needs must be made by a Pentair dealer or other qualified agency using factory specified and approved parts. The heater is available for use with natural gas or LP (propane) gas only. It is not designed to operate with any other fuels. Refer to the nameplate for the type of gas the heater is • equipped to use. • Use heater only with the fuel for which it is designed. • If a fuel conversion is necessary, refer this work to a qualified service technician or gas supplier before putting the heater into operation. A WARNING —Risk of fire or explosion from flammable vapors.Do not store gasoline,cleaning fluids,varnishes, paints, or other volatile flammable liquids near heater or in the same room with heater. , A WARNING —Risk of explosion if unit is installed near propane gas storage. Propane (LP) gas is heavier than air. Consult local codes and fire protection authorities about specific installation requirements and restrictions. Locate the heater away from propane gas storage and filling equipment as specified by the Standard for the Storage and Handling of Liquefied Petroleum Gases, CAN/CSA B149.2 (latest edition) or ANSI/NFPA 58 (latest edition). AWARNING —Risk of fire, carbon monoxide poisoning, or asphyxiation if exhaust venting system leaks. Only qualified service technicians should attempt to service the heater, as leakage of exhaust products or flammable gas may result from incorrect servicing. A WARNING —Risk of asphyxiation if exhaust is not correctly vented.Follow venting instructions exactly when installing heater. Do not use a drafthood with this heater, as the exhaust is under pressure from the burner blower and a draft hood will allow exhaust fumes to blow into the room housing the heater. The heater is supplied with an integral venting system for outdoor installation. A vent conversion kit(See Page 24 for Part Numbers for Conversion Kits)is available for installations in enclosures (Canada) or indoors (U.S.). Use the specified venting, and only the specified venting, when heater is installed in an enclosure or indoors. In Canada,this pool heater can only be installed outdoors or in an enclosure that is not normally occupied and has no openings directly into occupied areas. See Page 19 for enclosure venting requirements. A CAUTIJIV — Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Wiring errors can also destroy the control board. • Connect heater to 120 or 240 Volt, 60 Hz., Single Phase power only. • Verify proper operation after servicing. • Do not allow children to play on or around heater or associated equipment. • Never allow children to use the pool or spa without adult supervision. • Read and follow other safety information contained in this manual prior to operating this pool heater. MASTtRTEMP9 Pool and Spa Heater Installation and User's Guide Rev. M 1-8-15 Section 2. Warning and Safety Instructions s CONSUMER INFORMATION AND SAFETY ©WARNING The U.S.Consumer Product Safety Commission warns that carbon monoxide is an"invisible killer".Carbon monoxide is a colorless and odorless gas. 1. Carbon monoxide is produced by burning fuel,including natural gas and propane. 2. Proper installation,operation and maintenance of fuel-burning appliances in the home is the most important factor in reducing carbon monoxide poisoning. 3. Be sure that fuel burning appliances such as heaters are installed by professionals according to manufacturer's instructions and codes. 4. Always follow the manufacturer's directions for safe operation. 5. Have the heating system(including vents)inspected and serviced annually by a trained service technician. 6. Examine vents regularly for improper connections,visible cracks,rust or stains. 7. Install battery-operated carbon monoxide alarms.The alarms should be certified to the requirements of the most.recent UL,IAS,CSA and IAPMO standard for carbon monoxide alarms.Test carbon monoxide alarms regularly and replace dead batteries. GENERAL SPECIFICATIONS NOTICE: • Combustion air contaminated by corrosive chemical fumes can damage the heater and will void the warranty. • The Combination Gas Control Valve on this heater differs from most appliance gas controls. If it must be replaced, for safety reasons replace it only with an identical gas control. • The access door panels must be in place to provide proper ventilation. Do not operate the heater for more than five (5) minutes with the access door panels removed. • This heater is design certified by CSA International as complying with the Standard for Gas Fired Pool Heaters, ANSI Z21.56/CSA 4.7, and is intended for use in heating fresh water swimming pools or spas. • The heater is designed for the heating of chlorine, bromine or salt system swimming pools and spas. It should NOT be used as a space heating boiler, or general purpose water heater. • The heater is design certified by CSA International for installation on combustible flooring. Specified minimum clearances must be maintained to combustible surfaces (see"Heater Clearances", page 18). • The heater should be located in an area where leakage of the heater or connections will not result in damage to the area adjacent to the heater or to the structure. When such locations cannot be avoided, it is recommended that a- suitable drain pan, adequately drained, be installed under the heater:The pan must not restrict air flow. • The heater may not be installed within 5 ft. (1.5M)of the inside surface of a pool or spa unless it is separated by a solid fence, wall or other permanent barrier. v Rev.M 1-8-15 . MASTERTEMPO Pool and Spa Heater Installation and Users Guide h 10 Section 3. Installation Instructions Section 3: • r tion Instructions HEATER DESCRIPTION Figure 1 is a diagram of the heater showing how it operates.Precisely741;7 matched orifice plates meter the air and gas into the mixer. The blower draws the air and gas through the mixer and forces it into the burner's flame holder.A sealed heat exchanger surrounds the Air w Blower flame holder,discharging exhaust gases out the flue. Two inch PVC water piping connects directly to the manifold/header ,xe on the heat exchanger using 2"PVC slip unions provided with the Inlet (Cold heater.The outer manifold remains cool;no heat sinks are required. Water) A thermal regulator and an internal bypass regulate the water flow ♦ —►' i♦ -► through the heat exchanger to maintain the correct outlet �I 1 temperature. The heater operator control panel board assembly is located on top of the heater. SEQUENCE OF OPERATION Outlet (Mixed r Burner Heating Cods Water) An electronic temperature sensing thermistor in the manifold adapter inlet controls the heater operation. When the inlet water Figure 1. temperature drops below the temperature set on the operating control,the burner controller supplies power to the combustion air blower through a series of safety interlocks. The interlocks consist of, •the pressure switch (PS), which senses that the pump is running, • the high limit switch(ELS),which opens if the heat exchanger outlet temperature goes above 135°F(57° C), and •the air flow switch(AFS),which senses the pressure drop across the air metering orifice, •the automatic gas shut-off(AGS) switch,which opens if the heat exchanger outlet temperature goes above 140°F (60° Q. • the stack flue sensor (SFS), which shuts down the heater if the flue gas temperature reaches 480° F (249° Q. The air flow switch(AFS)senses the pressure drop across the air metering orifice.As soon as there is sufficient air flow, the AFS closes,closing the circuit to the hot surface igniter(ESI),which ignites the fuel mixture.On a call for heat,the blower and HSI are energized.In about 20 seconds,the gas valve opens and ignition occurs.The HSI then switches to a sensing mode and monitors the flame. The heater is equipped with a digital operating control that enables the user to pre-set the desired pool and spa water temperatures. The control enables the user to select between pool and spa heating, and features a digital display that indicates the water temperature. PUTTINGTHE HEATER INTO SERVICE If the heater is installed below the level of the pool, or more than two feet above pool level,the pressure switch setting should be adjusted. See WATER PRESSURE SWITCH, in the SAFETY CONTROLS Section. Before putting the heater into service for the first time,follow the instructions under"BEFORE START-UP"(page 33)in the front of this manual. Check for proper operation of the heater by following the steps under "OPERATION INSTRUCTIONS." Damage to equipment caused by improper installation or repair will void the warranty. MASTERTEMP" Pool and Spa Heater Installation and User's Guide Rev. M 1-8-15 Section 3. Installation Instructions : SPECIFICATIONS These installation instructions are designed for use by qualified personnel only,trained especially for installation of this type of heating equipment and related components. Some states require installation and repair by licensed personnel. If this applies in your.state, be sure your contractor bears the appropriate license. See Figure 2 for Outdoor and Indoor Installations. DIMENSIONS 23.02' (58.5 cm) 666M dm6mNi- 00 v 0 O O11 28.15° (71.5.cm) 21.0' 32.61' (53.3 cm) (82.8 cm) 16' (40.6 cm) 0 FRONT TOP ELECTRICAL CONDUIT PORT 0 0 2J2' 0 (71.6 cm) 22.7° (57.7 cm) 16.0° l� (40.6 cm) 10.13' (25.7 cm) 5.6- (14.2 cm) EXHAUST SIDE PLUMBING SIDE Figure 2. Rev.M 1-8-15 MASTERTEMPI Pool and Spa Heater Installation and User's Guide 12 Section 3. Installation Instructions PLUMBING CONNECTIONS The MasterTemp heater has the unique capability of direct schedule 40 PVC plumbing connections. A set of bulkhead fittings is included with the MasterTemp heater to insure conformity with Pentair's recommended PVC plumbing procedure. Other plumbing connections can be used. See Figure 3 for plumbing connections. - °, 0 ©CAUTI®IV POOL ° TO PUMP POOL HEATER Mur°nL FILTER Before operating the heater on a new installation, turn BY-PASS on the circulation pump and bleed all the air from the VALVE ,I filter using the air relief valve on top of the filter. Water �Il should flow freely through the heater. Do not operate Figure 3. FROM the heater unless water in the poollspa is at the proper POOL level.If a manual by-pass is installed,temporarily close it to insure that all air is purged from the heater. WATER CONNECTIONS The heater requhes proper water flow and pressure for its 3-Way , Valve Chlorinator operation. See Figure 5 for the recommended installation. The filter pump discharges to the filter,the filter discharges to the heater, and the heater discharges directly to the pool l l or spa. j j A manual bypass valve should be installed across the heater when the pump flow exceeds 120 GPM (454 LPM). See t[Heaatert "WATER FLOW RATE"on page 13-Table 1 for setting of the manual by-pass valve. Drain Q Filter Make sure that the outlet plumbing from the heater contains0 Pool Spa, no shut-off valves or other flow restrictions that could prevent 0;: P flow through the heater(except for pool installations as noted $ Pum below,or winterizing valves where needed).To switch flow t between the pool and spa,use a diverter valve. Do not use l j any valve that can shut off the flow. b Install the chemical feeder downstream of the heater.Install From Pool 3-Way 3-Way a chemical resistant one-way check valve between the heater Valve Valve and the chemical feeder to prevent back-siphoning through the heater when the pump is off. Figure 5. NOTICE:If the heater is plumbed in backwards,it will cycle continuously.Make sure piping from filter is not reversed when installing heater. Connect the heater directly to 2" PVC pipe, using the integral unions provided. Heat sinks are not required. The low thermal mass of the heater will prevent overheating of the piping connected to the pump even if the heater shuts down unexpectedly. Occasionally a two-speed pump will not develop enough pressure on the low speed to operate the heater.In this case,run the pump at high speed only to operate the heater.If this does not solve the problem,do not try to run the heater.Instead, correct the installation. Do not operate the heater while an automatic pool cleaner is also operating.Ifthe circulation pump suction is plugged(for example by leaves),there may not be adequate flow to the heater. Do not rely on the pressure switch in this case. MASTERTEMP' Pool and Spa Heater Installation and User's Guide Rev. M 1-8-15 Section 3. Installation Instructions 13 VALVES When any equipment is located below the surface of the pool or spa, valves should be placed in the circulation piping system to isolate the equipment from the pool or spa.Check valves are recommended to prevent back-siphoning. Back- siphoning is most likely to occur when the pump stops,creating a pressure-suction differential.Do NOT sanitize the,pool by putting chlorine tablets or sticks into the skimmer(s). When the pump is off,this will cause a high concentration of v chlorine to enter the heater,which could cause corrosion damage to the heat exchanger. ©CAUTION Exercise care when installing chemical feeders so as to not allow back siphoning of chemical into the heater, filters or pump.When chemical feeders are installed in the circulation of the piping system,make sure the feeder outlet line is down stream of the heater, and is equipped with a positive seal noncorrosive "Check Valve", (PIN R172288), between the feeder'and heater. MANUAL BY-PASS Where the water flow rate exceeds the maximum 120 GPM, a manual Figure 4, bypass should be installed and adjusted. After installing the valve,adjust the valve to bring the flow rate within the acceptable range.Then remove the valve handle or lock it in place to avoid tampering. See Figure 4. o ®® Model Min.(GPM)(LPM) Max.(GPM)(LPM)• Table 1. ®®®®® . 175 20(76) 120(454) ® ®° 200 20(76) 120 (454) 250 25(95) 120 (454) o u Cool water 300 30(114) 120(454) 400 40(152) 120(454) ° 'Do not exceed the maximum recommended flow Warmwater" out rate for the connecting piping. 'Pumps 2 HP or larger can produce water pressure 1.Set Manual By-Pass Valve. . flow in excess of 120 GPM.For these pumps,a 2.Remove Handle.-----. BY-PASS VALVE is recommended. Outlet to pool See aae 46 for Pressure Relief Valve Installations. Inlet to heater BELOW POOL LEVEL INSTALLATION If the heater is below water level, the pressure switch must be adjusted. This adjustment must be done by a qualified service technician. See following CAUTION before installation. ©CAUTION BELOW OR ABOVE POOL INSTALLATION The water pressure switch is set in the factory at 3.00 PSI(±0.75 PSI).This setting is for a heater installed at pool level. If the heater is to be installed more than 1'above or below,the water pressure switch must be adjusted by a qualified service technician. See page 35, Figure 29. v FLOW SWITCH If the heater is installed more than 5'above the pool or more than 4'below the pool level,you will be beyond the limits of the pressure switch and a flow switch must be installed. Locate and install the flow switch externally on the outlet piping from the heater, as close as possible to the heater. Connect the flow switch wires in place of the water pressure switch wires. Rev.M 1-8-15 MASTERTEMP" Pool and Spa Heater Installation and User's Guide 14 Section 3. Installation Instructions GAS CONNECTIONS GAS LINE INSTALLATIONS Before installing the gas line,be sure to check which gas the heater has been designed to burn.This is important because different types of gas require different gas pipe sizes.The rating plate on the heater will indicate which gas the heater is designed to burn.The Table 2,shown on page 15,show which size pipe is required for the distance from the gas meter to the heater. The table is for natural gas at a specific gravity of.65 and propane at a specific gravity of 1.55. When sizing gas lines,calculate three(3)additional feet of straight pipe for every elbow used.When installing the gas line, avoid getting dirt,grease or other foreign material in the pipe as this may cause damage to the gas valve,which may result in heater failure. The gas meter should be checked to make sure that it will supply enough gas to the heater and any other appliances that may be used on the same meter. The gas line from the meter will usually be of a larger size than the gas valve supplied with the heater. Therefore a reduction of the connecting gas pipe will be necessary. Make this reduction as close to the heater as possible. The heater requires a gas supply of not less than 4" (10.2 cm) we and not more than '14" (35.6 cm) we. Gas supply pressures outside of this range may result in improper burner operation.A minimum flowing or dynamic inlet pressure (while the heater is running)of 4"(10.2cm)we is required to maintain input rating with no more than a 2"pressure drop between static and dynamic. The gas supply must be installed in accordance with the National Fuel Gas Code, ANSIZ223.1, or standard CSA 13149.1,Natural Gas and Propane Installation Codes, as applicable and all applicable local codes.Install a manual shut-off valve and a sediment trap and union located outside the heater panels,see Figure 6. Do not use a restrictive gas cock.The following minimum gas pipe sizes are recommended for natural gas supply piping, see Table 2 on page 15. For low pressure LP gas,pipe size may be reduced by 1/4",with a minimum pipe size of 1/2". Check for compliance with local codes. The heater and any other gas appliances must be disconnected from the gas supply piping system during any pressure testing on that system, (greater than I/2 PSI). The heater and its gas connection must be leak tested before placing the heater in operation. Do not use flame to test the gas line. Use soapy water or another nonflammable method. NOTE A manual main shut-off valve must be installed externally to the heater. ©WARNING DO NOT INSTALL THE GAS LINE UNION INSIDE THE HEATER CABINET. THIS WILL VOID YOUR WARRANTY. 18-24"of 3/4" Manual Gas line from Shut-off Valve Valve i .SEDIMENTTRAPS D (Se. Recommended -Pipe Sizes'Chart) Bell Install a sediment trap and union located outside the Reducer heater panels in accordance with National code requirements. Do not use a restrictive gas cock. The o ° a 0 ina e At least 9" sediment trap shall be either a tee fitting with a capped o ® B ° D nipple in the bottom outlet which can be removed for a ` _ cleaning, as illustrated in Figure 6, or an other device rj a a Union At least 3" recognized as an effective sediment trap. All gas piping o a Sediment should be tested after installation in accordance with a oo E:= Trap local codes. ° 12 ® o Figure 6. MASTERTEMPO Pool and Spa Heater Installation and User's Guide Rev. M 1-8-15 Section 3. Installation 15 GAS PIPE SIZING STAGE TWO"LOW PRESSURE" GAS PIPE SIZING PIPE SIZING FOR GAS LINE CONNECTIONS MAXIMUM EQUIVALENT PIPE LENGTH(Ft.) Natural Gas at 1000 B.T.U.per Cubic Foot Propane Gas at 2500 B.T.U,per Cubic Foot 112" 1 3I4' 1" 1-114" 1-112" 2" 2.112" MODEL NAT PRO NAT PRO NAT PRO NAT PRO NAT PRO NAT PRO NAT PRO 175 20' 30' 80' 125' 250' 450' 600' 200 20' 30' 80' 125' 250' 450' 600' 250 10' 20' 50' 70' 150' 250' 500' 600' - 300 10' 30' 50' 100'1 200'1 350' 400' 600' Table 2. 1 400 10' 1 20' 1 60' 1 100' 150' 200'1 450' 400' TESTING GAS PRESSURE Before operating the heater, the heater and its gas connections must be leak tested.Do NOT use an open flame to test for leaks.Test all gas connections for leaks with soapy water or another non-flammable method(see page 14). ' The heater and its individual shut-off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig(3.5 kPa). The heater must be isolated from the gas supply system by closing its individual manual shut-offvalve during any pressure testing of the gas supply at test pressures equal to or less than 1/2 psig(3.5 kPa). CHECKING THE GAS PRESSURE THROUGH THE COMBINATION GAS CONTROL VALVE ®WARNING Risk of fire and explosion. Improper installation, incorrect adjustment, alteration, service, or maintenance of the Combination Gas Control Valve can lead to fire or explosion, causing loss of life, personal injury, and/or property damage. If it is necessary to adjust the gas valve, this must be done by only by a qualified service agency. These instructions are for the use of qualified service technicians only! This appliance is equipped To Gas Connection with an unconventional gas Connection To Air Flow Valve Vent for Test Figure 7. control valve that is factory To Air Flow forService Switch To High Side set with a manifold Switch of Differential Pressure Gauge Pressure Tap pressure of —.2" (—O.Scm) F Inlet To Gas wc.Installation or service Y P'u valve vent : must be performed by a N vent qualified installer,service agency,or the gas supplier. N ' If this control valve is replaced,it must be replaced with an identical A� - �� ,ti;� Pressure Tap control. To Low Side of The combination gas Differential Pressure Gauge valve incorporates dual shut-off valves and a negative-pressure regulator. For proper operation,the regulated pressure at the outlet manifold of the valve must be—0.2" (-0.5cm)we below the reference pressure at the blower mixer inlet, and the gas valve `VENT' tap must be connected to the end cap air orifice as shown in Figure 7. Do not attempt to adjust the gas input by adjusting the regulator setting. The correct gas regulator setting is required to maintain proper combustion and must NOT be altered. Rev.M 1-8-15 MASTERTEMP" Pool and Spa Heater Installation and User's Guide 16 Section 3. Installation Instructions ©CAUTION The use of Flexible Connectors (FLEX) is NOT recommended unless they are properly sized according to the supplier recommendations for the heater rating. GAS PRESSURE REQUIREMENTS Natural Propane Gas Pressure Model Inches W.C. Maximum Inlet MT 14 14 Minimum Inlet MT 4 4 Manifold MT -0.2 t 0.1 -0.2 t 0.1 NOTE: All readings must be taken while heater is operating. Any adjustments or readings made while heater is off will result in performance problems. Table 3. OUTDOOR INSTALLATION (U.S. and Canada) For heaters located outdoors, using the built-in stackless venting system. ©WARNING Risk of explosion if a unit burning propane gas is installed in a pit or other low spot. Propane is heavier than air. Do not install the heater using propane in pits or other locations where gas might collect. Consult your local building code officials to determine installation requirements and specific installation restrictions of the heater relative to propane storage tanks and filling equipment. Installation must meet the requirements for the Standard for the Storage and Handling of Liquid Petroleum Gases,ANSI/NFPA 58 (latest edition) in the U.S., or CAN/CSA 13149.2 (latest edition) in Canada. Consult local codes and fire protection authorities about specific installation restrictions. Locate the heater on a level surface in an open area that is protected from drainage or run-off.Install the heater in an area where leaves or other debris will not collect on or around the heater. To avoid damage to the electronic components in the heater,take care to prevent prolonged exposure to driving sources of water(such as lawn sprinklers,heavy roof runoff, hoses,etc.).Avoid operation in persistent, extreme,moist or salty environments. In extreme weather,shut down the heater and disconnect the power to it until the weather has moderated. In areas subject to hurricanes or very high winds,purchase the Bolt Down Bracket Kit,P/N 460738. HEATER CLEARANCES - OUTDOOR IMPORTANT! • In an outdoor installation it is important to ensure water is diverted from overhanging eves with a proper gutter/drainage system.The heater must be set on a level foundation for proper drainage. • This unit shall not be operated outdoors at temperatures below-20°F. If the heater is located under a roof overhang, there must be at least three (3) feet (lm) of For Heater mounting clearance between the bottom of the overhang and the top of the heater exhaust vent,see Figure bolts and clamps, 8. If the heater is under a roof overhang, the space around the heater must be open on three purchase ort Down Bracket rate Kit, sides. DO NOT, under any circumstances, install the heater under ANY deck. Part No.460738. Lead-. Anchor MASTERTEMP'a Pool and Spa Heater Installation and User's Guide Rev. M 1-8-15 Section 3. Installation Instructions 17 For minimum exhaust vent clearances for all building openings, including but not limited to vented eaves,doors,windows, gravity air inlet,see Figure 9,show below. In Canada,the heater must be installed with the top of the vent at least 10 feet(3m)below,or to either side of,any opening into a building. Orient the heater for convenient access to the water connections and the gas and electrical connections. Note: Check local building codes for installing the heater from any property line set back requirements (see t/ie v installation diagram below). ©CAUTION E:::: If installing the heater next to or near an air conditioning unit or a heat pump, allow a minimum of 36 in. (91.4 cm) between the air conditioning unit and the heater. 3 ft.(1 M)or more 0 0 0 0 0 e o•o 0 0 0 0 0 • v o 0 0 0 0 0 •0 0 0 0 0 0 0 0 0 • Figure 8. OUTDOORASTALLATION VENTING GUIDELINES From window or door 3' 4' SIDE VIEW 4' . Property Line , 6 in ® 4 aes 0 From building wall '�\o0e\\a�`ec�e��5 a Force Grece�a�� Air let `ore Exhaust GO ••D' (vent) Building ,, • Vent Termination: o •Must be at least 3 ft.above any forced air inlet located within a 10 ft.radius. • Must be located 6 in.away from the building wall and the following distances away from any building v wall openings,included but not limited to vented eaves, doors,windows,gravity air inlet: —)o� 4 ft.below, � 4 ft.horizontally Figure 9. Rev.M 1-8-15 MASTERTEMPO Pool and Spa Heater Installation and User's Guide 28 Section 3. Installation Instructions CONTROL PANEL INDEXING On an outdoor shelter installation, the exhaust discharges into a vent pipe. Orient the heater so that the vent pipe does not interfere with adjustment of the Top Panel Door operating controls.The control panel located on the top panel can be rotated to Access any of the three sides of the heater for easy access, see Figure 19. ®® Panel 1. Remove the bolts from the door panels.Remove both door access panels. ° 2. Remove the four corner wing nuts that secure the top panel. Lift the top 0 panel upward to remove the top panel. 3. Rotate the top panel to the desired position located at 90° angles. Note that the control panel must NOT be located on the side where the vent - ° is located. r ° Door °°° 4. Replace the top panel down onto the side panels.Be sure that there are no Access Panel wires caught under the panel. 5. Secure the top panel using the four corner wing nuts. Figure 19. 6. Reattach the door access panels. FINAL INSTALLATION CHECK Check that horizontal vent pipe runs slope uniformly at least 1/4" per foot (2cm per meter) tocondensate drain(s). No sags,no dips,no high or low spots. Check that vent is supported at elbows,tees,and horizontal and vertical runs according to manufacturers instructions and code requirements. Check that vent supports and wall and ceiling penetrations allow free movements up,down,and sideways without putting any strains on the heater or vent body. Check for at least six inch(15cm) free air clearance between the heater vent pipe and combustible materials. Check that all joints are completely together and sealed. In Florida,building codes require that the heater be anchored to the equipment pad or platform to For Heater mounting withstand high wind pressures created during hurricanes.A Bolt Down Bracket Kit,P/N 460738,is bolts and clamps, available with anchor clamps designed to hold the unit to the equipment ad in hi wind ditipurchase separately p gp conditions. Bolt Down Bracket Kit, Installation of the anchor clamps are recommended in all installations and are required in Florida, Part No.460738. (See Florida Building Code 301.13). Lead, Anchor III - III MASTERTEMPO Pool and Spa Heater Installation and User's Guide Rev. M 1-8-15 Section 3. Installation Instructions 29 ELECTRICAL CONNECTIONS Electrical Rating:60 Hz 120/240 Volts AC,single phase Enclose the incoming AC power line to the heater,in an approved flexible conduit connected directly to the junction box on the inside of the access door panel.Line voltage field wiring should be 14 gauge,with a circuit capacity of 15 Amps. ACAUTION This heater is designed to operate at 120 or 240 VAC.It is not recommended to be connected to OR operate on a 208 VAC. NOTE • Before making any electrical connections to the power supply, remove the access door panels, open the control box and plug in the correct plug (120 VAC or 240 VAC). See plugs below. ©CAUTION The heater ships from the Factory with the 240 VAC plug installed. Installing the 120V plug and then connecting the v heater to 240V line current will immediately destroy the transformer, control board and ignition control module, and will void warranty. If you install the 240V plug and connect the heater to 120 VAC line current, the heater will not operate. • If any of the original wiring supplied with this heater must be replaced, installer must supply(No. 18 AWG,600V, 1050 C. U.L. approved AWM low energy stranded) copper wire or it's equivalent. Please read the boxes headed "IMPORTANT! READ ME FIRST!" on pages 38 and 42 before proceeding. 1. All wiring must be in accordance with all applicable codes. 2. The heater, when installed, must be electrically grounded and bonded in accordance with local codes or,.in the absence of local codes,with the National Electrical Code or the Canadian Electrical Code(as applicable).A bonding lug is provided on the outside of the panel under the vent for this purpose. 3. Electrical power circuits to the pool heater must follow local codes and National Electrical Code or Canadian Electrical Code(as applicable). 4. All wiring between the heater and devices not attached to it,or between separate devices which are installed in the field,must be"Type T"wire rated for 35°C rise. 5. All line voltage wiring shall be enclosed in approved flexible conduit,and shall be securely attached to the field wiring box located inside the access door panel. The conduit or cable connector at the field wiring box should contain an insulating bushing or its equivalent to prevent abrasion of the wires as they enter the box. v 6. The filter pump should run continuously when the heater is on, and for at least 5 minutes after the heater turns off.Any switches in the pump circuit(including circuit breakers) that can disconnect the pump must also disconnect the heater. 7. Do not wire single-pole switches,including protective devices,into a , grounded line.The heater is not sensitive to polarity. Connect the Ll of the power supply to the black wire,the L2 or neutral R lead to the red wire,and the ground wire to the green wire.A time clock controlling the filter pump should have a low-voltage Fireman's Switch that switches off the heater at least 15 minutes before shutting off the pump Always use crimp type connectors when .� connecting two wires. AC Plug � 1' s' lt 120 Vo AC VOLTAGE SELECT PLUGS: or (120 VAC or 240 VAC) 240 Volt , Figure 20. Rev.M 1-8-15 MASTERTEMP" Pool and Spa Heater Installation and User's Guide 30 Section 3. Installation Instructions CONNECTION OF FIREMAN'S SWITCH OR REMOTE CONTACT ACAUTION If,while there is line voltage connected to the heater, you touch either line voltage terminal with any 24VAC wire that is connected to the control board (including the Fireman's Switch jumper), you will immediately destroy the control board and void the warranty. REMOTE CONTROL CONNECTIONS 1. Switch off power to heater at main circuit breaker panel. 2. Unbolt and remove the access door panels. 3. Open control box cover(see Figure 21). 4a. To connect a 2-Wire Conlrol(such as Pentair's IntelliTouch®or EasyTouchO Control ' p ®® 4.10 Systems) or a timer: - Remove the factory installed jumper from the Fireman's Switch terminals. - Connect wires between the Fireman's Switch terminals on the heater and the relay. Connect wires from the controller or timer to the Fireman's Switch. Controller,timer or relay should be sized to handle 24VAC at 0.5 Amp(because it will be completing the 24VAC control board circuit on the heater as shown in Figure 22).DO NOT apply line voltage to the Fireman's Switch terminals.Use 18 gauge wire with a minimum 3/64" (1.2mm) thick insulation rated for a Figure 21. temperature rise of at least 105°C. - Knock-outs are provided to route the wires through BK the bottom of the control box and past the junction TRANS Y box. Y 4b. To connect a 3-Wire Control: Y Y 24VAC - Connect wires between the control board terminals '® §2U0 U U N K on the heater and the external relays, as shown in '~Z� N �s Figure 23. Use at least 2 relays per heater;to allow P_ for an "OFF setting" on each heater mode. Select OPERATING CONTROL relays that can handle logic level switching.DO NOT BK 0 MEMBRANE PAD - CONNECTION apply line voltage to control board terminals. -® ENABLETOGGLE DISABLE TOGGLE - Move jumper (as shown on Figure 23) to enable LU LU external control and to disable the heater membrane LL LL w pad's"Pool ON"and"Spa ON"buttons(the"OFF" Z TERMINAL BOARD key on the membrane pad remains functional). - Knock-outs are provided to route the wires through VFTthe bottom and thetop of the control box and past L, ° wR the junction box. F,5. Close control box cover. R L, 6. Re-install the access door panels. J To control heaters that are operated in parallel,connect wiring m � GN'D at same locations on heater as 2-Wire or 3-Wire Control.It Z — l Time Clock or Remote is imperative that each control circuit is isolated from the I �o�` (Purchase Separately— , I z m ,r Supplies Power to other control circuits, to avoid that current will flow from I I I I Circulator Pump) one heater to another through the control circuits. —— — ———- ——-J — I Fireman's Switch Completes the heater z I I •�24 Volt AC Control NOTICE:The fuse for the Fireman's Switch is a 1.25 Amp 0 I Board Circuit. 11/4 x'/4"fast blow fuse'which is commonly available. ° ° ° ° z I—— t DO NOT connect this =0 24VAC circuit to Line Voltage! Figure 22. R MASTERTEMP v. M 1-8-15 P Pool and Spa Heater Installation and User's Guide e Section 3, Installation Instructions 31 MASTERTEMP HEATERWIRING DIAGRAM (3-WIRE SYSTEM) CONNECTION DIAGRAM AGS Switch Air Flow Switch Stack Flue Sensor Extra Switch 1 Y/R v Gas Valve Hi-Limit Switch Y/BI. Pressure Switch Yro YM/ Y i Y 0l Y BL O y w RL O Y YI O YAN R R PR BRJ Y PR N PS a�°z°z a L) _�N NA/LP HLS. .y N Models Only ES1 = JB YINI AL AFS." OPERATING CONTROL Y I YM Yin Y Y Y Y MEMBRANE PAD •'� L AGS>� CONNECTION � i� SFS ♦° - ' co u - External Control Interface Circuit Disabled, Heater Membrane Pad Enabled Spa Line Common Llne J M P Pool L ne External Control Interface ® W V 1 BK 0 1H JIVIP F1 F2 VAC v DIAGNOSTIC INDICATOR IGNITION CONTROL -� MODULE Y Y External Control Interface Circuit 24VAC Enabled,"Pool On"and"Spa On" s." Lt L2 s2 H ND a ND BED Keys Disabled."OFF"Key on Membrane Pad Remains Functional. •••• • O 1111 YNJ GY GY BK GY Y/0 Y/BL W YIR 0 BK 120 VAR YM IGNRER 1 W GND BK o Plug—12 in o TRANS 120V-Black [loll GY BK a FL , L2 240V- Red SK O H Fl s BM BK o 1 � 0 0 o GY Y R R W 00o R w I GY R 12 Position I I Receptacle V BK=w W_BK_R C BLOWER i — a aEi a BL BL I 7 tL N JUNCTION BOX NOTICE:Touching any 24VAC wire,including G ca N . Line 1-y } —eK the Fireman's Switch wire,to any 120/240V .7 Co ca i i terminal while the heater is connected to line END r" Line z-� }i R power will immediately destroy the control Ground-�-j }t-G� board and void the warranty. __ Figure 23. END Rev.M 1-8-15 MASTERTEMP@ Pool and Spa Heater Installation and User's Guide 32 Section 3. Installation Instructions MASTERTEMP HEATER ELECTRICAL SCHEMATIC LADDER DIAGRAM LADDER DIAGRAM L1 L2 VAC IGNITER L1 S1 S2 L2 F1 F2 BLOWER GND 240 VAC CLASS II TRANSFORMER 24 VAC OPERATING CONTROL 24 VAC 24 VAC GND "••"• AIR • 24V • LOGIC FLOW • • SWITCH • • TH • • • WATER HI • PRESSURE LIMIT • SWITCH SWITCH • IND COM NO • AGS INLET TEMPERATURE SWITCH CONTROLSWITCH VAL GAS VALVE THERMISTOR DFLUESENSOR NOTES: 1.) El L2 [E] EI S1 24 VAC S2 GND IND VAL AND TH ARE CONNECTED ON THE IGNITION MODULE. 2.) A PIN AND SOCKET CONNECTOR. 3.) IF ANY OF THE ORIGINAL WIRES AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, THEY MUST BE REPLACED WITH TYPE 105°C OR ITS EQUIVALENT. Figure 24. MASTERTEMP Pool and Spa Heater Installation and User's Guide Rev. M 1-8-15 Section 4. Operation Instructions 33 Operation Instructions BASIC SYSTEM OPERATION Start pump, make sure.the pump is running and is primed, to close the water pressure switch and supply power to heater.Be sure the pool and/or spa is properly filled with water. Follow the Lighting/Operating instructions below. MASTERTEMP HEATER HSI ELECTRONIC IGNITION LIGHTING/OPERATION FOR YOUR SAFETY: READ BEFORE LIGHTING ©WARNING If you do not follow these instructions exactly,a fire or explosion may result causing property damage,personal injury or loss of life. Do not attempt to light the heater if you suspect a gas leak.Lighting the heater can result in a fire or explosion v which can cause personal injury,death,and property damage. START-UP AND OPERATION START-UP AND SHUTDOWN INSTRUCTIONS ARE ON THE LABEL ATTACHED TO THE COVER OF THE APPLIANCE CONTROL BOX. BEFORE START-UP A.This appliance does not have a pilot.It is equipped with E. Do not operate the pool heater unless the pool or spa is an ignition device which automatically lights the burners. properly filled with water. Do not try to light the burners by hand. F. Before operating the appliance for the first time or after B.BEFORE OPERATING, smell all around the it has been off for an extended time, perform the appliance area for gas.Be sure to smell next to the floor following checklist: because some gas is heavier than air and will settle on 1. Remove debris or other articles from inside the heater the floor. and the area around the heater and its exhaust vent. WHAT TO DO IF YOU SMELL GAS Make sure the ventilation openings are clear of debris — Do not try to light any appliance. or obstruction.For installations in an enclosed space, — Do not touch-any electrical switch;do not use any phone make sure openings for combustion and ventilation air are unobstructed. in your building. v — Immediately call your gas supplier from a neighbor's 2. Keep heater area clear and free from combustibles, phone.Follow the gas supplier's instructions. flammable liquids and chemicals. — If you cannot reach your gas suppliercall the Fire 3. Check that all water connections are tight. , Department. 4. Water must be flowing through the heater during C. Use only your hand to turn the gas control on or off. operation.Make sure that pool/spa is filled with water you cannot change the ON/OFF and have pump operating. Check that water flow is Never use tools. If y g unobstructed from the appliance.When operating for setting by hand, don't try to repair it, call a qualified the first time or after an extended shut-down, run service technician.Forced or attempted repair may result filter pump for several minutes to clear all air from in a fire or explosion. the system. D.Do not use this heater if any part has been under water. Immediately call a qualified service technician to inspect the heater and to replace any part of the control system and any gas control which has been under water. Rev.M 1-8'-15 MASTERTEMP Pool and Spa Heater Installation and User's Guide 34 Section 4. Operation Instructions OPERATING INSTRUCTIONS 1. STOP! Read the safety information on(page 33). Water Pressure 2. Set both pool and spa thermostats to the lowest settings. switch 3. Turn off all electric power to the appliance. 0 4. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner.Do not try to light the burner by hand. j 5. Remove the access door panels by unfastening the four screws located on e ° ° each door, then lift up and out from the bottom of the panel to remove. If necessary, the screws may be used as handles, see Figure 25. 6. Toggle-Style Valve: Pull toggle toward you to turn gas off, see Figure 26. Figure 25. 7. Wait five (5) minutes to clear out any gas. If you then smell gas, STOP! a®° 0 Follow`B"in the"Before Start-up"instructions(page 33).If you don't smell ° gas, go to the next step. 8. Push the toggle switch away from you to switch the gas on. Gas control is shown 9. Replace the Door Access Panels.All panels must be in place when operating °wt Push way Som you the.heater. =- to switch ON. 10. Set 3-way velves on inlet and outlet to pool or spa,as appropriate. J 11. Turn on all electric power to the appliance. l; ; 12. Press either the POOL ON or SPA ON button switch on the operating control. 13. Set the thermostat to desired setting (NOTICE: Setpoint must be above actual water temperature or burner will not fire). See "OPERATING the You CONTROL PANEL". are here. 14. The blower should come on immediately, and after about 20 seconds, the burner should fire.When operating for the first time,the burner may not fire on the first try because of air in the gas line.If it does not fire at first,push the OFF switch,wait five minutes,and again push the POOL or SPA ON switch. The burner should fire after about 20 seconds.You may have to repeat this Figure 26. until all of the air has cleared the gas line. 15. The burner should fire until the pool/spa temperature reaches the desired temperature set on the thermostat. The blower will continue to run for about 45 seconds after the burner shuts off. If any of the safety interlocks should open during burner operation, the burner shuts off immediately, but the blower continues to run for about 45 seconds. Should overheating occur or the gas supply fail to shut off,turn off the manual gas control valve to the appliance. 16. If the appliance will not operate,follow the instructions below"TO TURN OFF GAS TO THE APPLIANCE",and call your service technician or gas supplier. TO TURN AFF GAS TO APPLIANCE 1. Press the OFF button on operating control. 2. Switch off all electric power to the unit. 3. Remove the access door panels, see Figure 25. 4. Toggle-Style Valve: Pull toggle toward you to turn gas off, see Figure 26. 5. Replace the Access Door Panels. MASTERTEMP' Pool and Spa Heater Installation and User's Guide Rev. M 1-8-15 Section 4. Operation Instructions 35 SAFETY CONTROLS AIR FLOW SWITCH (AFS) Figure 27. The air flow switch, (see Figure 27), is a safety device used to insure that the combustion air blower(fan)is operating and has been designed to monitor the vacuum (negative)pressure within the blower housing.The air flow switch is o factory set and is connected upstream ofthe ignition module.The ignition module does not operate unless the air pressure switch and all safety switches are closed. 0 WATER PRESSURE SWITCH ©WARNING Air Flow Switch Hazardous pressure. Do not bypass the Water Pressure Switch or render it inoperable. Figure 28. The water pressure switch,(see Figure 28).If the water flow is restricted,the Water water pressure switch may prevent the burner from firing and cause the"Service sre«ure System"light to go on.If the light remains on after the filter has been serviced, a have a qualified service technician check the system. For deck-level heater installations,the Water Pressure Switch is factory set at _ 3.00 psi (20.6 kPa). NOTE. See, Below Pool Level Installation Instructions on page 13. If the pressure switch is one feet (.3M) below or above the pool j water level,reset the switch so that it is open when the pump is off and closed when the pump is running.Turn the star-wheel on the switch clockwise(t'**+) to raise setting(heater below the pool)and counterclockwise(4"1)to lower the setting(heater above the pool—see Figure 29.Test the switch after resetting. ® ° ° NOTICE. When the heater is mounted more than five feet(1.5M) above or o four feet(1.2M)below the deck level,a Pressure Switch is no longer adequate. A Flow Switch must be installed instead. NOTICE. Heater operation with incorrect Turn star wheel clockwise to raise pressure set point if pressure switch is more Pressui-a Switch setting may cause operation than 4 feet(1.2M)below water level with no water flow. Operation of the heater without sufficient water flow may severely • damage it. HIGH LIMITS ::: o Star Wheel V. A"High Limit", is a safety device that opens the electrical circuit and shuts off the heater o based on a water temperature set point within A reference scale is on the ".High Limit .Device". The MasterTemp the back of pressure switch • heater series of heaters contains two(2)high •• o limit devices which are located on the main ®e inlet/outlet header. • O • Figure 29. Turn star wheel counterclockwise to lower pressure set point if pressure switch is more than 5 feet(1.5M)above water level Rev.M 1-8-15 MASTERTEMPO Pool and Spa Heater Installation and User'$ Guide 36 Section 4. Operation Instructions SAFETY CONTROLS, (contd.) Flame Current Diagnostic LED Check Point 1Flash - Air Flow Fault2 Flashes- Flame No Call for Heat OPERATION OF IGNITION MODULE 3 Flashes- Ignition Lockout The Ignition Module, (see Figure 30), is microprocessor based = x= r y +etea:*xzx and operates on 24VAC supplied by the transformer.The control utilizes a microprocessor to continually and safely monitor,analyze, r�x and control the proper operation ofthe gas flame holder.The module with the presence of the flame sensor, using flame rectification,. ,��� � ��►��..� �z� , allows the heater.-to operate. ,., OPERATINGTHE CONTROL PANEL "Figure 30. The five operating switches are: Temperature Digital Temperature POOL ON Press this button to govern heater operation by up and Down Display the pool temperature setting. SPA ON Press this button to govern heater operation by PENTAIR the spa temperature setting. HEATER OFF Press this button to switch off the heater. IMP TER A TEMP Press this button to raise the temperature 11 DOWN SERVICE SERVICE HEATING SPA POOL setting. HEATER SYSTEMoN ot+ OFF V TEMP Press this button to lower the temperature System Operation Dual Temperature Heater"OFF" setting. Indicator Lights Controls Switch To toggle the display between degrees Centigrade(°C)and degrees Fahrenheit(° ): Figure 31. 1. Turn the Operating Control OFF. 2. Press ATEMP or V TEMP for 5 seconds.The display will flash once and change modes(°C to°F or vice versa). 3. Turn the Operating Control ON. When either the ATEMP or V TEMP buttons are depressed,the digital display will indicate the temperature setting. After five seconds,the display will return to the actual pool/spa temperature. In addition to the digital temperature display,there are five indicator lights: The POOL ON light indicates that the pool water temperature is governing operation of the heater. The SPA ON light indicates that the spa water temperature is governing operation of the heater. The HEATING light comes on and stays on when the burner is firing.This light should be on whenever the burner is on. It blinks when the heater is calling for heat but not firing. If this light is on but the burner fails to come on, one of the "service"lights should come on,indicating a fault in the system. The SERVICE SYSTEM light indicates that there is insufficient water flow to the heater.If the pump is operating,this usually indicates that the filter and/or skimmers should be cleaned(some filters may require back-washing).If the light remains on after the filter/skimmers have been serviced,the system should be checked by a qualified service technician. The SERVICE HEATER light indicates a fault in the heater or its controls.If this light comes on,shut down the heater (See "TO TURN OFF GAS TO THE APPLIANCE" on page 34), and have a qualified service technician check the system. ©WARNING Risk of explosion or fire causing burns or death if safety interlocks are disabled. DO NOT attempt to operate heater when SERVICE HEATER light is on or if blower or burner will not start. Instead,follow instructions under"To Switch Off Gas to the Appliance,"and call a qualified service technician to repair unit. MASTERTEMP3 Pool and Spa Heater Installation and User's Guide Rev. M 1-8-15 Section 4. Operation Instructions 37 TEMPERATURE SETTING The heater comes factory set at 78°F. for the pool mode and 100°F. for the spa mode. Using the up and down arrows, you can set the thermostats to a minimum temperature of 65°F.,or a maximum of 104°F.If you desire to heat only one body of water,the thermostat is capable of an off mode.As an example,if you only wish to heat the spa and not the pool, simply depress and hold the pool down arrow,and the thermostat will.lower its setting to 65°F.then go to an off mode. MAXIMUM TEMPERATURE SET POINT 1. Unbolt and remove the door panels(see Figure 32). Top Panel Door 2. Access the control panel board on the underside of the top cover.Locate Access the yellow button on the corner of the control board. ®® Panel 3. Push the Max.Temp. Set Point button on the back of the control ®' board(see Figure 33). The following sequence should happen: A. The unit will come on and the POOL ON light will come on. B'. Press the ATEMP or V TEMP pad(on TOP of the panel)to set °®° maximum pool temperature. C. Wait up to 30 seconds;the POOL ON light will go off and the Door Access Panel SPA ON light will come on.To override the time delay,push the Max.Temp.Set Point button again. Figure 32. D. Press the ATEMP or V TEMP button on the control panel and set maximum spa temperature to 104°F(40°C)or less. E. Wait up to 30 seconds;the SPA ON light will go off and the unit will shut down.To override the time delay,push the Max.Temp. Set Point button again. 4. Reinstall the access door panels. Figure 33. Rev.M 1-8-15 MASTERTEMP" Pool and Spa Heater Installation and User's Guide y e �e ✓?tea '-•�.. x✓ �s 3 ►;® PENTAIR 1620 HAWKINS AVF.,SANFORD,NC 27330•(919) 10951 WEST LOS ANGELES AVE., MOORPARK CA 93p21 • (805]553 5000' I ' �� www.pentairpoot.com All Pentair trademarks and logos are owned by Pei�tarr or",by one of its global affiliates. Pentair Aquatic SysfemsTM Ma�terTemp®, IntelliTouch®,EasyTouch®,are trademarks and/or rst red':_trademarks of Pentair Water,Foot and Spa Inc°and/or its affiliated companres" , in the United States and/or other countries.Unless expressly noted,names a6d brands ofi fhird part(es that;may be used in this.document are not used to indicate an affiliation or endorsement bee een the owners of}hese names and`brand5'and'Pentair Water Poo(and,Spa,Inc Those names and brands may be the trademarks or(Registered trademarks o'ivthose third parties Bec, i'se we are continuously trnprouing our products and services,Pentair reserves the right t6 change specifications ithout�ortornatrce Pentair is an equal opportunityerr�litoyer .� ©2015 Pentair Water Pool and Spa, Inc. All rights reserved.This document is subject to change without notice. IIIIIII�IIIIIIII�IIIIIIIIIIIIIIIIIIIIIII ✓�' `, P/N 472592 REV. M 1/2015 xs,•..