. Remove the access door panels. READ AND REVIEW THIS MANUAL COMPLETELY before proceeding with an installation. . The heater is equipped with a digital operating control that enables the user to pre-set the desired pool and spa water temperatures. 120/240 vac natural gas/lp gas mastertemp pool & spa heater, Please give this manual to the owner and/or, Please retain this manual for future reference, it, contains important information that will help you in. . . . . . The burner should fire until the pool/spa temperature reaches the desired temperature set on the thermostat. . 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 supplied with an integral venting system for outdoor installation. . . Gasoline fumes are heavier than air and will settle to floor level in closed spaces. . . . If air temperatures are expected to drop below freezing (32° F/0° C), shut down the heater and winterize it (See ”WINTERIZING”, Page 8). There are two designators for each heater, one is the Model Number and the other is the Heater Identification Number (HIN). . . Pregnant women beware! If the pump is operating, this usually indicates that the filter and/or skimmers should be cleaned (some filters may require backwashing). This heater is designed for outdoor installation. . . . 20, Pressure Testing . . Wiring errors can cause improper and dangerous operation. Use the specified venting, and only the specified venting, when heater is installed in an enclosure or indoors. The heater, when installed, must be electrically grounded and bonded in accordance with local codes, or, in absence of local codes, with the Canadian Electrical Code or the National Electrical Code, ANSI/NFPA70, as applicable. Serious malfunction of the burner can occur which may result in loss of life. Consult local codes and fire protection authorities about specific installation restrictions. . . . . Do not try to run a heater set up for natural gas on propane gas or vice versa. All panels must be in place when operating the heater. . . Before putting the heater into service for the first time, follow the instructions under “BEFORE START-UP” (page 4) in the front of this manual. . The minimum net free area in square inches are as follows: Table 2: Combustion and Ventilation Air Requirements, OUTDOOR SHELTER VENT INSTALLATION (Canada) or INDOOR INSTALLATION (U.S.), •Vent it horizontally or vertically using a Special Gas Vent, (see Table 4, Page 14), or. . . . . . need size ~23mm long socket (only had a 24mm long socket which sorta worked). ... Model 400⦠. . Type “B” Double-wall vent connector is recommended; however single-wall pipe is allowed by the National Fuel Gas Code in some circumstances. 4, Spa Temperature Caution . This pool heater can only be installed outdoors or in an enclosure that is not normally occupied and has no direct openings into occupied areas. . . ▼ TEMP Press this button to lower the temperature setting. . . 2.Install the metal Flue Collar in the Vent Body of the heater (located under the outside vent cover). . For pools used only on weekends, lower the thermostat setting by 10° F to 15° F (5° C to 8° C) during the week to reduce heat loss. A sealed heat exchanger surrounds the flameholder, discharging exhaust gases out the flue. These products save energy, conserve water, eliminate noise, or otherwise contribute to a more environmentally responsible equipment system. Before connecting the metal Flue Collar to the Vent Body, wet a clean. •the pressure switch (PS), which senses that the pump is running, •the high limit switch (HLS), which opens if the heat exchanger outlet temperature goes above 135° F (57° C), and. Never use tools. . and leave the heater on. Consult your local code official for detailed information. . START-UP AND SHUTDOWN INSTRUCTIONS ARE ON THE LABEL ATTACHED TO THE COVER OF THE APPLIANCE CONTROL BOX. . . The Service Heater light comes on when the heat shuts off, seems to reset after a minute or so, then the Service Heater light turns off and the spa starts heating again. . Push the toggle switch away from you to switch the gas on. . . 13.Set the thermostat to desired setting (NOTICE: Set point must be above actual water temperature or burner will not fire). . . Force or attempted repair may result in fire or explosion. Make sure that pool/spa is filled with water and have pump operating. . Call Us: +44 (0)7474 124 340 +44 (0)7906 297 117; FIND US: Cromwell Rd, 70 PYM COURT, CB1 3FB CAMBRIDGE, UK Pool heater ignition lockout is designed to protect against overheating. . . Be sure to sniff next to the floor, because some gas (such as propane) is heavier than air and will settle on the floor. Installation must meet the requirements of the Standard for the Storage and Handling of Liquid Petroleum Gases, ANSI/NFPA 58 (latest edition) in the U.S., or CAN/CSA B149.2 (latest edition) in Canada. There is voltage going in, but the element never heats up. Sniff all around the appliance area for gas. If it is necessary to convert to a different type of gas, consult your Pentair dealer. 3.Open drain cock located on the bottom of the manifold adapter, and drain the heat exchanger and manifold adapter completely. Had to find the right sensor to unscrew and replace. . . Remove the access door panels by unfastening the four. . In a garage, install a rail or wall to protect the heater from physical damage by a moving vehicle. NOTICE: Water trapped in the heater can cause freeze damage. 3.Pregnant women beware! If this light comes on, shut down the heater (See TO SWITCH OFF GAS TO THE APPLIANCE on page 6), and have a qualified service technician check the system. Have a BRAND new Pentair Mastertemp 400. When operating for the first time, the burner may not fire on the first try because of air in the gas line. . 5, Operating Instructions . . Turn switch on heater gas valve to OFF. 11 years ago. Diagram showing how Pentair MasterTemp Pool Heaters work. Assist the draining by blowing out the heat exchanger through the pressure switch fitting with low pressure compressed air (less than 5 PSI or 35 kPa). . . The minimum requirements are for two (2) openings: one 12 inches (30cm). If the pipe does not drain naturally to the pool, install a drain cock in the outlet pipe to drain the manifold. Special caution is suggested for young children. For heaters located outdoors, using the built-in stackless venting system. 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). . Installation or service must be performed by a qualified installer, service agency or the gas supplier. Check for evidence of joint leakage. . Only qualified service technicians should attempt to convert heater from one fuel to the other. If a fuel conversion is necessary, refer this work to a qualified service technician or gas supplier before putting the heater into operation. D.Do not use this heater if any part has been under water. 2.Keep the area in and around the heater clear and free from combustible materials, gasoline and other flammable vapors and corrosive liquids. 15.The burner should fire until the pool/spa temperature reaches the desired temperature set on the thermostat. . . . •the automatic gas shutoff (AGS) switch, which opens if the heat exchanger outlet temperature goes above 140° F (60° C). . . For minimum exhaust vent clearances for building openings, see Figure 13, Page 15. If you don’t smell gas, go to the next step. WARNING Risk of fire and explosion if installed at floor level in an automotive garage or near gasoline or flammable liquid storage. Installation or service must be performed by a qualified installer, service agency or the gas supplier. . Some jurisdictions require that installers be licensed. Consult your local building code officials to determine installation requirements of heater relative to propane storage tanks and filling equipment. 4.Water must be flowing through the heater during operation. Use only your hand to turn the gas control on or off. Use UltraCopper® silicone RTV to seal the Flue Collar to the Vent Body. . . . To install, with the pins on the right side when mounted, attach the ribbon cable starting from the bottom up, leaving the top 3 un-connected⦠. •Use heater only with the fuel for which it is designed. . Do not operate the heater for more than five (5) minutes with the access door panels removed. If the unit overheats and the burner fails to shut off, follow instructions under “To Switch Off Gas to the Appliance”, Page 6, and call a qualified service technician to repair unit. . A thermal regulator and an internal bypass regulate the water flow through the heat exchanger to maintain the correct outlet temperature. . Pentair MASTERTEMP 400 HD Installation And User Manual (54 pages) POOL AND SPA HEATER. . Special caution is suggested for young children. HEATER OFF Press this button to switch off the heater. . If you cannot reach your gas supplier, call the fire department. . . . . . Locate the heater so as to minimize the length of horizontal venting and the number of vent elbows required. Switch off all electric power to the unit. . (45 cm) from any property line. Wait five (5) minutes to clear out any gas. . Install Listed condensate drains at low points where condensate might collect. 120/240 VAC NATURAL GAS/LP GAS MasterTemp Pool & Spa Heater. . . . This appliance does not have a pilot. . . Transformer has failed. . 8, Installation Instructions . ENERGY SAVING TIPS. . . . . When the inlet water 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. Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the appliance. 2.Remove the four corner screws that secure the top panel. 6.Cover air inlet grate with a plastic bag to prevent bugs, leaves, etc., from getting into the heater. See “OPERATING CONTROL.”. . Slope horizontal pipe runs up from the heater at least 1/4" per foot (2cm per meter). Do not try to light the burner by hand. MasterTemp TM WARNING 472592 Rev. Explanation Of The Different Pentair Mastertemp 400 btu Models. VERTICAL VENTING - NEGATIVE PRESSURE (See Figures 11 and 12) Vent the heater vertically in a negative pressure (positive draft) system in accordance with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CSA B149.1, Natural Gas and Propane Installation Codes, and local codes. It is equipped with an ignition device which automatically lights the burner. 2.Set both pool and spa thermostats to the lowest settings. The heater operator control panel board assembly is located on top of the heater. A 400,000 BTU pool heater can be a huge and noisy beast. This document is subject to change without notice. . . If you cannot change the ON/OFF setting by hand, don’t try to repair it, call a qualified service technician. Pentair MasterTemp 400 cutout problem. 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. . . This heater is intended for use in heating fresh water swimming pools or spas only. Never allow children to use the pool or spa without adult supervision. 5.Turn the heater off when the pool will not be used for an extended period. . . . . . . Turn switch on heater gas valve to OFF. 1. The burner does not require maintenance or adjustment by the user. 5.On enclosed installations with high-temperature Special Gas Vent systems, repeat the “Final Installation Check,” page 15. . . . . . . . . . Extended heater operation with water temperatures below 65° F (10° C) can result in serious damage to the heater and is not covered by warranty. Remove both door panels. CAUTION Label all wires prior to disconnection when servicing controls. . . . ▲ TEMP Press this button to raise the temperature setting. 14.The blower should come on immediately, and after about 20 seconds, the burner should fire. WARNING Risk of fire, explosion, or asphyxiation if heater is improperly installed, adjusted, serviced or maintained. Consult local codes and fire protection authorities about specific installation requirements and restrictions. . 6.Toggle-Style Valve: Pull toggle toward you to turn gas off. . . Warning and Safety Instructions The MasterTemp® pool heaters are designed and manufactured to provide many years of safe and reliable service when â â â 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. Turn the heater off when the pool will not be used for an extended period. . . POOL ON Press this button to govern heater operation by the pool temperature setting. . SPA ON Press this button to govern heater operation by the spa temperature setting. The control panel located on the top panel can be rotated to any of the three sides of the heater for easy access. 4.For pools used only on weekends, lower the thermostat setting by 10° F to 15° F (5° C to 8° C) during the week to reduce heat loss. The SPA ON light indicates that the spa water temperature is governing operation of the heater. 31-35, Wiring Diagrams/External Control Interface 36-37. In the U.S.: If the heater is located under a roof or deck overhang, there must be at least three feet (1M) of clearance between the bottom of the overhang and the top of the heater exhaust vent. Force or attempted repair may result in fire or explosion. Follow drain manufacturer’s installation instructions. . 19, Gas Connections . . Installation must meet the requirements for the Standard for the Storage and Handling of Liquefied Petroleum Gases, CAN/CSA B149.2 (latest edition) or ANSI/NFPA 58 (latest edition). . This item: Pentair Mastertemp Heater 460736 400K BTU Natural Gas In Stock Now $2,225.00 Pentair Intelliflo Pump VS 3 HP 230V Variable Speed THP 3.95 $1,199.00 [view detail] NG to Propane Conversion Kit Model 400 $39.00 [view detail] . 4, What To Do If You Smell Gas . DO NOT use a draft hood with this heater. . This will reduce heating costs, reduce water evaporation, conserve chemicals and reduce load on the filtering system. See Figure 3, page 5. . Installation and service must be performed by a qualified installer, service agency or the gas supplier. It does heat the spa about 1 degree every cycle. . I contacted Pentair and they are sending someone out tomorrow hopefully to fix, as it is under warranty. A properly sized heater will restore normal temperature within one day. . If water temperature remains high but the unit continues to operate, turn off the appliance and call your service technician. External power to the heater is disconnected. NOTICE: When starting the heater for the swimming season with a water temperature below 50° F (10° C), the heater may be used to heat the water; however, make sure that the heater operates continuously until the water temperature reaches the heater’s minimum setting of 65° F (18° C). 2, General Specifications, Requirements . . 8, Outdoor Installation. 12.Press either the POOL ON or SPA ON button switch on the operating control. Install the metal Flue Collar in the Vent Body of the heater (located under the outside vent cover). If the pipe does not drain naturally to the pool, install a drain cock in the outlet pipe to drain the manifold. Call (800) 831-7133 for additional free copies of these instructions. . . Only qualified service technicians should attempt to service the heater, as leakage of exhaust products or flammable gas may result from incorrect servicing. . . For outdoor heaters in freezing climates, shut the heater down and drain it for winter as follows: 1.Turn off electrical supply to the heater and pump. Product Code: 460805 . . . . Specified minimum clearances must be maintained to combustible surfaces (see “Installation Instructions”, Pages 8 and 9). . 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). . 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. . . Fit a Master Temp 400 by Pentair. Damage to equipment caused by improper installation or repair will void the warranty. Be sure to sniff next to the floor, because some gas (such as propane) is heavier than air and will settle on the floor. . Figure 2 is a diagram of the heater showing how it operates. 5.Remove the access door panels by unfastening the four 1/4-20 phillips head screws located on each door, then lift up and out from the bottom of the panel to remove. If it feels hot, or if you hear the water in the heater boiling, there may not be enough water flow to the appliance. . . Check service panel circuit breaker, or fuse. Comfort and economy can go together. . For installation on carpeting, the heater must be mounted on a metal or wood panel that extends at least three inches (10cm) beyond the base of the heater. C.Use only your hand to turn the gas control on or off. Do not attempt to alter the rated input or type of gas by changing the orifice. . . 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). Persons with medical history of heart disease, circulatory problems, diabetes or blood pressure problems should obtain their physician’s advice before using spas or hot tubs. To maintain pool temperature, make sure that the heater switch and valving are reset to pool settings after using the spa. Allowing the heater to freeze will void the warranty. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand. . . Make sure the ventilation openings are clear of debris or obstruction. . Leave 3 ft. (1 M) or more of clearance above heater, Leave 6 in. The heater may not be installed within five feet of the inside surface of a pool or spa unless it is separated by a solid fence, wall or other permanent barrier. Follow manufacturer’s instructions, local code requirements, National Fuel Gas Code requirements (U.S.) or standards CSA B149.1 and B149.2 (Canada) carefully during assembly and installation. . . If this control is replaced, it must be replaced with an identical control. . . The heater is available for use with natural gas or LP (propane) gas only. Plumb condensate drains to a drain through hard piping or hightemperature tubing such as silicone rubber or EPDM rubber – do not use vinyl or other low temperature tubing. . Check operation of the heater and its controls. 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. . . . In a utility room or residential garage installation, install the heater with the base at least 18 inches (.5M) above the floor. Safety . to pool users, installers, or others due to electrical shock, and ⦠. . . Retain these instructions for future reference. Mastertemp 400 heater problem . . . You may have to repeat this until all of the air has cleared the gas line. WARNING Risk of fire or explosion from flammable vapors. . . . . If heater is below pool water level, be sure to close isolation valves to prevent draining the pool (isolation valves are not required and should not be used on heaters installed above pool water level). . Call a qualified service technician if you suspect that the burner may require maintenance. Follow a regular program of preventive maintenance for the heater each new swimming season. . Use a time clock to start the filter pump at 6 a.m. or later. Test the operation of the pressure relief valve by lifting the valve lever. Then after 10 minutes or up to 1 hour the heater turns off! 9.Replace the Door Access Panels. CODES AND STANDARDS: Installation must be in accordance with all local codes and/or the latest edition of the National Fuel Gas Code, ANSI Z223.1/NFPA54 and the National Electrical Code, ANSI/NFPA70 (U.S.), or standards CSA B149 – INSTALLATION CODES FOR GASBURNING APPLIANCES AND EQUIPMENT and/or local codes and Standard CSA C22.1 – Canadian Electrical Code, Part 1 (Canada). Cover air inlet grate with a plastic bag to prevent bugs, leaves, etc., from getting into the heater. It is not designed to operate with any other fuels. Why MasterTemp is setting a new standard for total value might help you out in this.! . . A vent conversion kit (See Page 14 for Part Numbers for Conversion Kits) is available for installations in enclosures (Canada) or indoors (U.S.). Improper installation and/or operation will void the warranty. . . . Check that room air intakes are open and clear of obstructions. Choose a location that will avoid contamination by chemical fumes. $25 fix for a $2100 water heater. . WARNING Risk of fire, carbon monoxide poisoning, or asphyxiation if exhaust venting system leaks. Turn on all electric power to the appliance. Plug the port in the manifold to prevent bugs and dirt from getting. Improper installation and/or operation could create carbon monoxide gas and flue gases which could cause serious injury or death. Exhaust venting to the outdoors is required for all outdoor shelter installations. . . WARNING Risk of fire or explosion from incorrect fuel use or faulty fuel conversion. . 6, Operating Control . A Propane (LPG) fired heater must not be installed in a garage in Massachusetts, by order of the Massachusetts State Fire Marshall. Only qualified service technicians should attempt to convert heater from one fuel to the other. . 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