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Pentair MASTERTEMP 125, Installation And User Manual

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Pentair MASTERTEMP 125 Installation And User Manual Download Page 9

P/N 475114 Rev. F  9/2020

 

             

MASTERTEMP 125 Pool and Spa Heater Installation and User’s Guide

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Contents

Heater Identification Information (HIN) / Code Requirements  / References .....................................................................................................  ii - iii

 

Heater Identification Information (HIN)   ............................................................................................................................................................. iii 

Warnings and Safety Instructions / Consumer Information / General Specifications ..............................................................................  iv - viii

Operating the Control Panel ..................................................................................................................................................... ix

Section 1. Operation Instructions ......................................................................................................... 1

 

Operating Instructions / Basic System Operation ........................................................................................................................... 1

 

 

Heater HSI (Hot-Surface Ignition) Lighting/Operation .................................................................................................................... 1

 

 

Start-up and Operation / Before You Start ....................................................................................................................................... 1

 

 

Operating Instructions ....................................................................................................................................................................... 2

 

To Turn Off Gas to Appliance ............................................................................................................................................................ 2

 

Safety Controls: Air Flow Switch (AFS) / Water Pressure Switch / High Limit Devices .............................................................. 

 3 

 

Operation of Ignition Module ............................................................................................................................................................. 

 4

 

Temperature Setting / Adjust The Maximum Temperature Set Point ............................................................................................ 

 4

Section 2. Installation Instructions ....................................................................................................... 5

 

Heater Description ................................................................................................................................................................................ 5

 

Sequence of Operation ......................................................................................................................................................................... 5

 

Putting the Heater into Service ............................................................................................................................................................. 6

 Specifications ....................................................................................................................................................................................... 6
 

Plumbing Connections .......................................................................................................................................................................... 7

 

Water Connections ...............................................................................................................................................................................    7

 Valves ................................................................................................................................................................................................... 8
 

Manual By-Pass ................................................................................................................................................................................... 8

 

Below Pool Installation ......................................................................................................................................................................... 8

 

Gas Connections / Gas Line Installation .............................................................................................................................................. 9  

 

Sediment Trap/Drip Leg  ...................................................................................................................................................................... 9

 

Testing Gas Leaks and Gas Pressure .................................................................................................................................................. 10

 

Inlet Gas Pressure Requirements ........................................................................................................................................................ 10

 

Outdoor Installation / Heater Clearances .............................................................................................................................................  11 - 12

 

Indoor Venting— General Requirements / Heater Clearances /  Outside Vent cover Removal  .......................................................... 13

 

    Combustion Air Supply / Corrosive Vapors and Possible Causes ................................................................................................... 14

 

    Horizontal or Vertical Venting -  Using Single-Wall Stainless Gas Vent  .......................................................................................... 15

 

    Connecting Single-Wall Stainless Steel Vent to the Heater .............................................................................................................  16 - 17  

 

    Direct Air Intake Duct with 76 mm (3 in - UK) PVC Pipe (Indoor Installation) .................................................................................. 18

 

Control Panel Indexing ......................................................................................................................................................................... 18

 

Final Installation Check ........................................................................................................................................................................ 18

 

Electrical Connections .......................................................................................................................................................................... 19

 

Fireman’s Switch Connection/Remote Control Connections ................................................................................................................ 20

 

Heater Wiring Diagram / Heater Electrical Schematic Ladder Diagram ...............................................................................................  21 - 22 

Section 3. Troubleshooting .................................................................................................................... 23

 

Initial Troubleshooting and Troubleshooting Chart ............................................................................................................................... 23

 

Heater Will Not Fire Troubleshooting (A, B, C, D) ................................................................................................................................  24 - 27

 

LED Diagnostics (AGS, AFS, HLS, PS Thermistor) .............................................................................................................................  28 - 29

 

Burner / Heat Exchanger Troubleshooting ........................................................................................................................................... 30

Section 4. Maintenance Instructions .................................................................................................... 31

 

Care and Maintenance ......................................................................................................................................................................... 31

 

De-Limiting the Heater .......................................................................................................................................................................... 31

 

Pressure Relief Valve ........................................................................................................................................................................... 31

 

After Start-Up ........................................................................................................................................................................................ 32

 

Check Water Flow ................................................................................................................................................................................ 32

 

Spring, Fall  (Autumn) and Winter Operation ....................................................................................................................................... 32

 

Maintaining Pool Temperature / Energy Saving Tips ........................................................................................................................... 33

 

Chemical Balance .................................................................................................................................................................................     33 - 34

 

Replacement Parts ...............................................................................................................................................................................     35 - 39

ii

Contents

Summary of Contents for MASTERTEMP 125

Page 1: ...OR 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 USA 800 831 7133 OWNER Retain For Future Reference MT125 EURO 461078 461079 MT125HD EURO 460902 460903 INSTALLATION AND USER S GUIDE Pentair Water Pool and Spa Inc EMEA Head Office ...

Page 2: ...ted in this Installation and User s Guide or recommended by the manufacturer Any installed control device not recommended by the manufacturer could violate the Gas Safety Regulations the installation and use the above described regulations and the appliance warranty The manufacturer s notices DO NOT supersede any legal requirements Installation must be in accordance with the code requirements CODE...

Page 3: ...ater To access the data rating plate unbolt and remove the side door access panel as shown below Heater Data Rating Plate Location Door Acess Panel Top Panel Door Acess Panel iii 0087 1312 THIS HEATER IS EQUIPPED TO BURN OUTPUT ALTITUDE MINIMUM CLEARANCE FROM COMBUSTIBLE CONSTRUCTION 15 CM REAR 15 CM TOP 15 CM SIDE DO NOT INSTALL THIS HEATER UNDER AN OVERHANG LESS THAN 1 METER FROM THE TOP THE ARE...

Page 4: ...tion practices IMPORTANT NOTICES For the installer and operator of the MasterTemp 125 pool and spa 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 this pool heater please contact Pentair Aquatic Sy...

Page 5: ...ness which could lead to unconsciousness and subsequently result in drowning 3 Pregnant women beware Soaking in water above 39 C 102 F 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 38 C 100 F maximum rule 4 Before entering the spa or hot tub the user should check the water temperature...

Page 6: ... 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 Theheatermaynotbeinstalledwithin1 5M 5ft oftheinsidesurfaceofapoolorspaunlessitisseparatedbyasolid fence wall or other permanent barrier CONSUMER INFORMATION AND SAFETY CONTINUED WARNING The Consumer Product Safety Commission warns that carbon...

Page 7: ... gas 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 LEAVETHEVICINITYOFTHEPOOLORSPAANDGETINTOFRESHAIRIMMEDIATELY THE POOL HEATER MUST BE THOROUGHLY TESTED BY A GAS PROFESSIONAL BEF...

Page 8: ...fic 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 latest edition WARNING Risk of fire Do not place articles on near or against the heater WARNING Risk of burn hazard To reduce the risk of injury do not touch the side heater vent cover when the he...

Page 9: ...p Drip Leg 9 Testing Gas Leaks and Gas Pressure 10 Inlet Gas Pressure Requirements 10 Outdoor Installation Heater Clearances 11 12 Indoor Venting General Requirements Heater Clearances Outside Vent cover Removal 13 Combustion Air Supply Corrosive Vapors and Possible Causes 14 Horizontal or Vertical Venting Using Single Wall Stainless Gas Vent 15 Connecting Single Wall Stainless Steel Vent to the H...

Page 10: ...ich shuts down the heater if the flue gas temperature reaches 249 C 480 F 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 HSI 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 occ...

Page 11: ...ES Figure 2 5 5 140 mm 21 533 mm 21 533 mm 29 43 747 mm 23 584 mm 11 28 mm 11 28 mm 17 5 445 mm ELECTRICAL CONDUIT PORT FRONT VIEW TOP VIEW EXHAUST SIDE VIEW PLUMBING SIDE VIEW 1 5 UK 50 mm Section 1 Installation PUTTING THE HEATER INTO SERVICE If the heater is installed below the level of the pool or more than 0 6 meters 2 feet above pool level the pressure switch setting should be adjusted See W...

Page 12: ...valves where needed To switch flow between the pool and spa use a diverter valve Do not use any valve that can shut off the flow Do not use a shut off valve to isolate the heater unless it is below the level of the pool or spa Install the chemical feeder downstream of the heater Install a chemical resistant one way check valve between the heater and the chemical feeder to prevent back siphoning th...

Page 13: ...nded flow rates be sure all installed pipes are installed in accordance with local and state codes To allow for proper operation and service clearance maintain spacing to adjacent heaters Heaters installed too close to one another may encounter operational issues associated with exhaust fumes MULTIPLE HEATER INSTALLATION OPTIONAL 2 Ball Valve Bypass Extend 12 305 mm past end heater inlet for hydra...

Page 14: ...ment 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 chlorine to enter the heater which could cause corrosion damage to the heat ...

Page 15: ...heater and increased cost savings of operation A 3 Port valve with an IntelliValve actuator is installed at the heater inlet A check valve is installed at the heater oulet so that water cannot flow back into the heater See instructions for Automatic Bypass valve kit P N 462048 for setting the open and closed position of the IntelliValve WARM WATER OUT CHECK VALVE INTELLIVALVE VALVE COLD WATER IN H...

Page 16: ...as close to the heater as possible If the gas pressure is not adjusted to the correct working pressure the heater will be over gassed and cause serious damage within minutes This damage is not covered under the heater warranty Install a manual shut off valve that conforms with European Standard Codes of Practice and a sediment trap drip leg and union located outside the heater panels see Figure 9 ...

Page 17: ... hose 10 Tighten the small screw inside the pressure tap Description Type Gas Supply Pressure Natural Gas 2H 2E 2N 2Es 2Ei 2ELL G20 G25 20 25 mbar Propane Gas 3P G31 37 mbar NOTE The minimum value approved for input adjustment Do not exceed the maximum supply pressure Allreadingsmustbetakenwhileheaterisoperating Anyadjustmentsor readings made while heater is off will result in performance problems...

Page 18: ...o 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 D...

Page 19: ...he 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 1 meter 3 ft or more WARNING Risk of fire and explosion Do not spray aerosols in the vicinity of the heater while it is in operation Chemicals should not be stored near the heater installation Combustion air can be contaminated ...

Page 20: ...ent pipe Orient the heater so that the vent pipe does not interfere with adjustment of the operating controls The control panel located on the top panel can be rotated to any of the three sides of the heater for easy access However the control panel must not be located on the side where the vent is located INDOOR VENTING General Requirements If you are considering connecting this heater to a pre e...

Page 21: ...r within any active vent such as a factory built or masonry chimney Area Likely Contaminants Chlorinated swimming pools and spas Pool or spa cleaning chemicals Acids such as hydrochloric or muriatic acid New construction and remodeling areas Glues and cements construction adhesives paints varnishes and paint and varnish strippers Waxes and cleaners containing calcium or sodium chloride Beauty parl...

Page 22: ...ruction will be according to local code standards approved non corrosive material such as stainless steel Acondensate trap may be needed The use of Approved thimbles roof jacks and or side vent terminals are required and the proper clearances to combustible materials must be maintained in accordance with type of vent pipe employed in the absence of a clearance recommendation by the vent pipe manuf...

Page 23: ...m side to side or up and down as necessary without putting a strain on the heater or vent body It is recommended to slope the horizontal pipe down to condensate trap at least 2 cm m 1 4 in per foot Install Approved condensate drains at low points where condensate might collect Plumb condensate drains to a drain through hard piping or high temperature tubing such as silicone rubber or EPDM rubber d...

Page 24: ...min 1 2 m 4 ft Min 76 mm 3 in minimum clearance if r horizontal distance to exhaust opening is less than 3 m 11 ft Forced Air Inlet Vent Termination 0 3 m 1 ft minimum above snow or finished grade whichever is higher At least 2 m 7 ft above grade adjacent to public walkways Vent Termination Vent Termination Gas Meter Max 305 mm 12 in Min 76 mm 3 in 1 2 m 4 ft min NOTE After installation installer ...

Page 25: ...e with anchor clamps designed to hold the unit to the equipment pad in high wind conditions see Figure 22 Installation of the anchor clamps are recommended in all installations Figure 21 Combustion PVC Air Intake 3 in Pipe Vertical or Horizontal No of 90 Elbows Maximum Length in M ft 0 21 3 M 70 ft 1 17 7 M 58 ft 2 14 0 M 46 ft 3 10 4 M 34 ft 4 6 7 M 22 ft 15 24 cm 6 in min 30 4 cm 12 in min 91 44...

Page 26: ...l 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 current European Standard Codes of Practice A bonding lug is provided on the outside of the panel under the vent for this purpose See page 19 for BONDING instructions 3 Electrical power circuits to the pool heater must follow European Stan...

Page 27: ...es 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 31 page 23 DO NOT apply line voltage to the Fireman s Switch terminals Use 18 gauge wire with a min...

Page 28: ... voltage gradients in the pool area Not properly bonding and grounding the heater increases the risk of electrical shock Damage to the heat exchanger can occur from electrolysis when the heater is not bonded properly All wiring must be in accordance with all applicable codes The heater when installed must be electrically grounded and bonded in accordance with local codes or in the absence of local...

Page 29: ...e is inside the heater route the RS 485wires under exhaust Note Do not let the wires contact the exhaust 7 Using cable ties secure to the RS 485 cable to the main wire harness that connects to heater s control panel circuit board 8 Insert the three RS 485 wires Pin 1 BLK 2 GRN 3 YEL into the screw terminal Secure the conductors with the screws For wiring details refer to the pin configuration on n...

Page 30: ...o access the circuit board sockets connectors for the electrical connections Connecting the RS 485 Cable from the Heater to the Load Center Note Use a 22 AWG four conductor low voltage RS 485 cable to connect to the MasterTemp heater to the IntelliCenter Control System Load Center 4 Run the RS 485 cable from the heater s control board RS 485 COM port terminal connector to the Load Center or Power ...

Page 31: ...B 14 VDC 2 0A Max Combined 4 3 2 1 15 DT DT GND TO HEATER CONTROL PANEL RS 485 COM PORT Figure 30 Connecting the RS 485 Cable from the Heater to the Load Center Continued 8 Reinstall the High Voltage Panel Insert the panel s three tabs into the lower slots on the enclosure 9 Secure the panel with the two 2 retaining screws Close the front door and secure with the latch See Figure 29 on page 21 10 ...

Page 32: ...P N 475114 Rev F 8 2020 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 23 HEATER WIRING DIAGRAM 3 WIRE SYSTEM Figure 31 Section 1 Installation ...

Page 33: ...OGIC TH IND AIR FLOW SWITCH HI LIMIT SWITCH WATER PRESSURE SWITCH COM NO AGS SWITCH VAL GAS VALVE THERMISTOR SENSOR STACK FLUE SENSOR NOTES 1 AND TH L1 L2 F1 F2 S1 24 VAC S2 GND IND VAL ARE CONNECTED ON THE IGNITION MODULE 2 3 PIN AND SOCKET CONNECTOR 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 LADDER DIAGRAM ...

Page 34: ...d don t try to repair it call a qualified service technician Forced or attempted repair may result in a fire or explosion 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 E Do not operate the pool heater unless the pool or spa i...

Page 35: ... must be in place when operating the heater 9 Set 3 way valves on inlet and outlet to pool or spa as appropriate 10 Turn on all electric power to the appliance 11 Press either the POOL ON or SPA ON button switch on the operating control 12 Set the thermostat to desired setting NOTICE Set point must be above actual water temperature or burner will not fire See OPERATING THE CONTROL PANEL see Figure...

Page 36: ...t is open when the pump is off and closed when the pump is running Turn the star wheel on the switch clockwise to raise setting heater below the pool and counterclockwise to lower the setting heater above the pool see Figure 6 Test the switch after resetting NOTICE When the heater is mounted more than 1 5M 5 ft above or 1 2M 4 ft below the deck level a Pressure Switch is no longer adequate AFlow S...

Page 37: ...skimmers should be cleaned some filters may require back washing If the message remains on after the filter skimmers have been serviced the system should be checked by a qualified service technician RISK OF EXPLOSION OR FIRE CAUSING BURNS OR DEATH IF SAFETY INTERLOCKS ARE DISABLED DO NOT attempt to operate heater when The ERR HLS ERR AFS ERR IGN ERR AGS ERR SFS E01 E05 E06 126 messages on the LCD ...

Page 38: ...ttings SELECT Select current menu item or save menu item settings MENU BACK Enter menu items Press Down to scroll through menu item Press Menu Back to return to main screen HEATING LED Solid Red LED on indicates the heater currently heating LED Off Heater is not active Note During the heater ignition process this LED blinks Menu Navigation 1 Press MENU BACK displays POOL MAX Use the DOWN or UP but...

Page 39: ...ass Valve Enabled Disabled By pass Valve Description The purpose of the automatic BPVALVE bypass valve feature is to by pass the flow of water from the heater inlet to the heater outlet when the heater is not firing There is a minimal amount of water flow through the heater when the heater is not firing and a maximum water flow through the heater when the heater is firing For more information abou...

Page 40: ... Fault Condi on Error Code Displayed Note Troubleshoo ng Water pressure switch open ERR PS If water flow is established the the error is cleared and normal opera on is resumed No water flow thru heater Hi temperature limit switch open ERR HLS When the temperature falls below 135 F the error is cleared and normal opera on is resumed Water temperature a er the 1st pass through the heater exchanger is ...

Page 41: ...YES Is POOL OR SPA displayed on the LCD See page 33 See ALARMS Heater Error and Fault Codes page 35 Go to ALARMS in the menu tree of the control board See page 36 Turn off power to heater for about 5 seconds and turn back on Make sure tempera ture setting is above water temperature Wait one minute Do any diagnostic LED s on back of board AGS AFS SFS HLS PS or E01 or 126 OR come on and stay on NOTI...

Page 42: ...ne voltage to heater Check for 24 VAC at secondary of Transformer Check for Line Voltage at Transformer primary pins White connects to Pin 3 on Transformer Black to Pin 2 Orange to Pin 1 240V check Pin1 to Pin 3 120V check Pin 2 to Pin 3 Jumper Fireman s Switch at Terminal Board and depress POOL SPA On button on membrane pad Does SPA or POOL display Leaving jumper in place check for 24 VAC between...

Page 43: ... Model Flow 200 20 gal min 76 LPM 175 20 gal min 76 LPM 250 25 gal min 95 LPM 300 30 gal min 114 LPM 400 40 gal min 151 LPM Is ERR PS displayed on LCD NO YES YES YES NO Verify that pump is on filter is not blocked and the water flow is above the minimum requirement Check that water pressure is within the adjustment range of the Pressure Switch 0 5 psig Verify that switch wiring is OK and Pressure ...

Page 44: ...ment during ignition try wait for about 30 seconds after calling for heat Replace Gas Valve with identical part NO NO Check for 24 VAC between TH and GND terminals on Ignition Control Module SEE NOTE 1 Check for 24 VAC between TH and GND terminals on Control Board SEE NOTE 1 NO NO Replace Control Board YES Fix wiring between TH and GND terminals of ignition Control Module and Control Board YES Che...

Page 45: ...rsists replace Blower Replace Blower Verify correct connection of wiring between 24 VAC and IND terminals on Ignition Control Module and Control Board and replace Control Board YES YES NO NO NO YES YES NO ERR AFS Does Blower operate Verify Thermistor wiring If OK replace Thermistor Disconnect Blower and check for line voltage between pins 1 and 3 of Blower Connector on ignition try Connect correct...

Page 46: ...ircuit 0 shorted Does sensor check OK Clean tighten pins as needed Reset power to Heater and retry Heater should fire NOT OK NO NO NO NO NO Replace Stack Flue Sensor Correct Fuel Supply reset Heater and retry Heater should fire correctly Repeat checks on fuel supply Thermal Regulator check for correct orifices etc DONE DONE YES YES YES YES NO NO YES NO OK YES Replace Heater Control Board Replace H...

Page 47: ...e does being sensed low resistance to ground Replacewith not stay lit new igniter Verify burner flameholder is properly grounded Ignition Control Module Heat Exchanger Troubleshooting SYMPTOM CAUSE REMEDY Boiling in heat exchanger Low water flow to heater pump and or filter May be accompaniedby Heat exchanger plugged Service Service heat exchanger Correct water bumping sounds chemistry Bypassvalve...

Page 48: ...cid This process should only be performed by a person of sufficient skill The heater MUST be disconnected from the pool plumbing gas plumbing and electric The heater may be placed on its side with the water manifold up The diluted muriatic acid may be recirculated until visible bubbles are no longer produced Before being restored to service the heater water ways should be completely rinsed with re...

Page 49: ...d pump 2 Close main gas control valve and manual gas valve located outside the heater Turn switch on heater gas valve to OFF 3 In colder climates where they may be required open drain cock located on the bottom of the manifold adapter and drain the heat exchanger and manifold adapter completely If heater is below pool water level be sure to close isolation valves to prevent draining the pool isola...

Page 50: ... between the heater and the chlorinator to prevent concentrated chemicals from back siphoning into the heater 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 chlorine to enter the heater which could cause ...

Page 51: ...ppm or higher or bromine residual is 6 0 ppm or higher See your local pool supply store for help in properly balancing your water chemistry RULE Chemicals that are acid lower pH Chemicals that are alkaline raise pH ALKALINITY High or Low Total alkalinity is a measurement of the total amount of alkaline chemicals in the water and control pH to a great degree It is not the same as pH which refers me...

Page 52: ...ailable from your Pentair dealer or call Customer Support at 1 800 831 7133 US For complete Electrical System parts breakdown Key Nos 1 through 4 See Page 47 For complete Burner System parts breakdown Key Nos 5 through 7 See Page 45 For complete Water System parts breakdown Key Nos 8 through 9 see Page 46 1 2 3 5 6 4 8 9 7 Section 5 Replacement Parts ...

Page 53: ...ool and Spa Heater Installation and User s Guide P N 475114 Rev F 8 2020 44 MasterTemp 125 HEATER REPLACEMENT PARTS 23 22 8 9 1 10 21 2 3 4 7 6 5 11 12 20 19 18 13 27 17 16 15 23 24 25 26 14 Section 5 Replacement Parts ...

Page 54: ...Combustion Chamber Gasket 13 Flameholder Insulation Cap Flameholder Insert 14 Combustion Chamber Gasket Kit 15 One Piece Metal Chamber Combustion Chamber Assembly 9 bolt Insulation Kit Includes Key No 13 16 17 18 19 16 Bottom Outer Insulation Blanket 17 1 Bottom Inner Insulation 18 1 Top Insulation 19 Top Outer Insulation Blanket Lower Enclosure Insulation 20 One Piece Metal Elbow Combustion Chamb...

Page 55: ...in Electrical System Page 53 1 475148 3 Coil Tubesheet Sealing O Ring Kit 474973 4 Manifold Bottom Plate 5 Manifold O Ring 1 1 1 6 Manifold Baffle Plate 7 Manifold Bypass Valve 1 1 8 Water Pressure Switch 42001 0060S 9 Manifold 1 10 5 16 Washer Stainless Steel 6 11 5 16x18x2 3 4 Hex Cap screw 6 1 474989 12 Thermal Regulator 13 Pressure Relief Valve Recommended Purchase Separately 1 473715Z 1 1 3 4...

Page 56: ...6 High Limit Switch 55 C 1 474369Z 7 Thermistor 1 42001 0053S 8 Terminal Board 1 1 1 1 1 1 42001 0056S 9 Fireman s Switch Fuse 1 25A 1 1 4 32850 0099 10 Ignition Control Module 1 474103Z 11 Transformer 120 240V 1 42001 0107S 12 Air Flow Switch 42001 0061S 13 Control Board Kit NA LP Series 1 42002 0007S Heater Wiring Harness 120 240V 1 474163Z 120 240 Volt Plug Kit 42001 0105S 14 Heater Top 42002 0...

Page 57: ...membrane pad NA LP 1 461106 461106 RS 485 conversion Combo kit 1 476211 462049 Kit Includes RS 485 control board RS485 membrane pad and flame current wire 471105 PIEZAS DE REPUESTO SISTEMA ELECTRICO Modelo 125 NA LP 1 1 42002 0035 2 1 42001 0030S 3 1 77707 0054 4 1 42001 0066S 5 1 474368S 6 1 474367S 7 1 42001 0053S 8 1 1 1 1 1 1 42001 0056S 9 32850 0099 10 1 42001 0052S 11 1 42001 0107S 12 42001 ...

Page 58: ...P N 475114 Rev F 8 2020 MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide 49 Notes ...

Page 59: ...MASTERTEMP 125 Pool and Spa Heater Installation and User s Guide P N 475114 Rev F 8 2020 50 Notes ...

Page 60: ...red trademarks and logos are the property of their respective owners 2016 Pentair Water Pool and Spa Inc All rights reserved This document is subject to change without notice 2020 Pentair All rights reserved This document is subject to change without notice P N 475114 REV F 9 2020 475114 Customer Support Pentair EMEA Head Office Pentair International S a r l Avenue de Sévelin 20 1004 Lausanne Swit...

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