Pentair MASTERTEMP 125 Installation And User Manual
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Pentair MASTERTEMP 125 Installation And User Manual

High performance heater
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MASTERTEMP
HIGH PERFORMANCE HEATER
INSTALLATION AND USER'S GUIDE
FOR YOUR SAFETY - READ BEFORE OPERATING
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
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 GAS/LP GAS
Models
125K BTU/HR (without cord)
125K BTU/HR (with cord)
FOR
YOUR
SAFETY
10951 W. Los Angeles Ave., Moorpark, CA 93021 (800) 831-7133 or (805) 553-5000
®
125
Natural
Propane
461058
461060
461059
461061
WHAT TO DO IF YOU SMELL GAS
Pentair Water Pool and Spa, Inc.
1620 Hawkins Ave., Sanford, NC 27330 (800) 831-7133 or (919) 566-8000
OWNER:
Retain For
Future
Reference

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Summary of Contents for Pentair MASTERTEMP 125

  • Page 1 Improper installation and/or operation can create carbon monoxide gas and flue gases which can 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.
  • Page 2 Customer Service and Technical Support If you have questions about ordering Pentair Aquatic Systems replacement parts, and pool products, please call: (8 AM to 4:30 PM Pacific Time and Eastern Time) Phone: (800) 831-7133 - Fax: (800) 284-4151 Web sites: www.pentairpool.com - www.staritepool.com 475000 Rev.

  • Page 3: Table Of Contents

    Contents ..............................Important Notices ....................................Warranty Information .................................... Code Requirements ....................................Consumer Information and Safety Information ............................. 6 - 9 General Specifications ..................................Section 3. Installation ......................Heater Description ....................................Putting the Heater into Service ................................Specifications ....................................... Plumbing Connections ..................................Valves ........................................
  • Page 4 Model Size Fuel Type Construction HEATER IDENTIFICATION INFORMATION — (HIN) H. I. N. HEATER IDENTIFICATION NUMBER ID DESIGNATOR FOR PENTAIR AQUATIC SYSTEMS MASTERTEMP 125 HEATER ® Example: CONSTRUCTION = STD = STANDARD MODEL NA = NATURAL GAS FUEL TYPE =...

  • Page 5: Important Notices

    Section 2. Warning and Safety Instructions Section 2: Warning and Safety Instructions IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS SAVE THESE INSTRUCTIONS ® MasterTemp 125 High Performance Heater ® ® ® ® ® ® ® IMPORTANT NOTICES ® WARRANTY INFORMATION CAUTION OPERATING THIS HEATER CONTINUOUSLY AT WATER TEMPERATURE BELOW 68°...

  • Page 6: Code Requirements

    Section 2. Warning and Safety Instructions CODE REQUIREMENTS 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 WARNING The U.S.

  • Page 7: Safety Information

    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.
  • Page 8 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.

  • Page 9: General Specifications

    Section 2. Warning and Safety Instructions 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. GENERAL SPECIFICATIONS NOTICE: for safety reasons replace it only with an identical gas control. minutes with the access door panels removed.

  • Page 10: Section 3. Installation

    Section 3. Installation Instructions Section 3: Installation Instructions HEATER DESCRIPTION Blower Mixer Inlet (Cold Water) Outlet Burner (Mixed Heating Coils Water) SEQUENCE OF OPERATION Figure 1. PUTTING THE HEATER INTO SERVICE MASTERTEMP ® 125 Pool and Spa Heater Installation and User’s Guide Rev.

  • Page 11: Specifications

    Section 3. Installation Instructions SPECIFICATIONS 20.85" DIMENSIONS IN INCHES 52.95cm ELECTRICAL CONDUIT PORT 29.43" 21" 74.76 53 cm 17.5" 44.5cm 10.87" 28.cm FRONT VIEW TOP VIEW 23" 58.4cm 10.87" 27.6cm 5.5" 14cm EXHAUST SIDE VIEW PLUMBING SIDE VIEW Figure 2. Rev.

  • Page 12: Plumbing Connections

    Section 3. Installation Instructions PLUMBING CONNECTIONS Figure 3. ® CAUTION HEATER PUMP POOL FROM FILTER FILTER MANUAL BY-PASS Before operating the heater on a new installation, turn on GATE VALVE the circulation pump and bleed all the air from the filter using the air relief valve on top of the filter.

  • Page 13: Below Pool Installation

    Section 3. Installation Instructions VALVES 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”, (P/N R172288), between the feeder and heater.

  • Page 14: Gas Connections

    Section 3. Installation Instructions GAS CONNECTIONS GAS LINE INSTALLATIONS 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.

  • Page 15: Gas Pipe Sizing

    Section 3. Installation GAS PIPE SIZING STAGE TWO “LOW PRESSURE” GAS PIPE SIZING PIPE SIZING FOR GAS LINE CONNECTIONS (Ft.) MAXIMUM EQUIVALENT PIPE LENGTH Natural Gas at 1000 B.T.U. per Cubic Foot Propane Gas at 2500 B.T.U. per Cubic Foot 1/2”...

  • Page 16: Outdoor Installation (Us And Canada) / Heater Clearances

    Section 3. Installation Instructions OUTDOOR INSTALLATION (U.S. and Canada) 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.

  • Page 17: Outdoor Installation Venting Guidelines

    Section 3. Installation Instructions OUTDOOR INSTALLATION VENTING GUIDELINES From window or door SIDE VIEW Property Line 6 in From building wall Force Exhaust Grill Air Inlet (Vent) Building Vent Termination: Must be at least 3 ft. above any forced air inlet located within a 10 ft. radius. Must be located 6 in.

  • Page 18: Heater Clearances - General Requirements (Indoor Installation For Us Or Outdoor Shelter For Canada)

    Section 3. Installation Instructions HEATER CLEARANCES — General Requirements INDOOR INSTALLATION (U.S.) OR OUTDOOR SHELTER (CANADA) (*) For service access, it is advisable to allow for 15 cm TOP.......6 in. (15 cm) sufficient clearance on at least one door panel. (6 in) EXHAUST SIDE ...6 in.

  • Page 19: Direct Air Intake Exhaust Duct Using 3-Inch Pvc Pipe (Indoor Installation) / Corrosive Vapors And Possible Causes

    Section 3. Installation Instructions ® Combustion 3 in. PVC Pipe Inlet Air Intake Duct Requirements* Combustion Air Intake 3 in. Pipe (Vertical or Horizontal) No. of 90° Elbows Maximum Length in Feet (M) 70 ft. (21.3 M) 58 ft. (17.7 M) 46 ft.

  • Page 20: Vent Installation (Indoor Installation For U.s. Or Outdoor Shelter For Canada)

    Section 3. Installation Instructions VENT INSTALLATION – INDOOR INSTALLATION (U.S.) OR OUTDOOR SHELTER (CANADA) (Category I) NOTE *: Vent must be at least eight (8) feet away from nearest vertical surface. Vents extending five (5) feet or more above the roof must be braced or guyed. Consult your local code officials for detailed information.
  • Page 21 Section 3. Installation Instructions NOTE The allowable vent runs for each vent pipe diameter are different and can not be exceeded. Each 90-degree elbow reduces the maximum horizontal vent run by 12 feet and each 45-degree elbow in the vent run reduces the maximum vent run by 6 feet. See Table 5 on page 20 for the maximum vent lengths using 90-degree and 45-degree elbows.
  • Page 22 Section 3. Installation Instructions WARNING Fire Hazard. Do not vent the heater directly into a masonry chimney. Installation into a masonry chimney must use a chimney liner and must meet the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CSA B149.1, Natural Gas and Propane Installation Codes requirements and all local code requirements.

  • Page 23: Horizontal Or Vertical Venting - Positive Pressure

    Section 3. Installation Instructions HORIZONTAL OR VERTICAL VENTING - POSITIVE PRESSURE (See Figures 15, 16, and (Category III) NOTE The allowable vent runs for each vent pipe diameter are different and can not be exceeded. Each 90° elbow reduces the maximum horizontal vent run by 12 feet and each 45-degree elbow in the vent run reduces the maximum vent run by 6 ft.
  • Page 24 Section 3. Installation Instructions WARNING Risk of carbon monoxide poisoning if adapter is improperly attached. Mechanical connections (such as screws) can cause cracking and leaks in the adapter. Do NOT drill holes or use screws to connect the appliance adapter to the heater vent body. Attach with manufacturer’s specified adhesive.
  • Page 25 Section 3. Installation Instructions Max. 12" 4' Min. 4' Min. Min. 3" Vent Vent Termination Termination Vent 4' Min. Termination 1' Min. 4' Min. At least 7' above grade adjacent 1' Minimum Gas Meter to public above snow or Forced Air walkways finished grade Inlet...

  • Page 26: Outdoor Shelter Vent Installation

    Section 3. Installation Instructions OUTDOOR SHELTER INSTALLATION WARNING Risk of asphyxiation if exhaust is not correctly vented. Follow venting instructions exactly when installing heater. Do not use a draft hood 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.

  • Page 27: Control Panel Indexing

    Section 3. Installation Instructions CONTROL PANEL INDEXING Top Panel Door Acess Panel Door Acess Panel Figure 20. FINAL INSTALLATION CHECK For Heater mounting bolts and clamps, purchase separately Bolt Down Bracket Kit, Part No. 460738. Lead Anchor Rev. B 8/14 MASTERTEMP ®...

  • Page 28: Electrical Connections

    Section 3. Installation Instructions ELECTRICAL CONNECTIONS CAUTION 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 volt or 240 volt).

  • Page 29: Fireman's Switch Connection/Remote Control Connections

    Section 3. Installation Instructions CONNECTION OF FIREMAN’S SWITCH OR REMOTE CONTACT CAUTION 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.

  • Page 30: MastertempĀ® 125 Heater Wiring Diagram

    Section 3. Installation Instructions HEATER WIRING DIAGRAM (3-WIRE SYSTEM) CONNECTION DIAGRAM AGS Switch Air Flow Switch Stack Flue Sensor Extra Switch 1 Gas Valve Y/BL Hi-Limit Switch Pressure Switch NA/LP Models Only Y/BL OPERATING CONTROL MEMBRANE PAD CONNECTION JMP3 External Control Interface Circuit Disabled, Heater Membrane Pad Enabled Spa Line Common Line...

  • Page 31: Electrical Schematic Ladder Diagram

    Section 3. Installation Instructions HEATER ELECTRICAL SCHEMATIC LADDER DIAGRAM LADDER DIAGRAM 120/240 IGNITER BLOWER 120/240 CLASS II TRANSFORMER 24 VAC OPERATING CONTROL 24 VAC 24 VAC FLOW LOGIC SWITCH WATER LIMIT PRESSURE SWITCH SWITCH COM NO SWITCH GAS VALVE STACK FLUE THERMISTOR SENSOR SENSOR...

  • Page 32: Section 4. Operation

    Section 4. Operation Instructions Operation Instructions BASIC SYSTEM 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 which can cause personal injury, death, and property damage.

  • Page 33: Operating

    Section 4. Operation Instructions OPERATING INSTRUCTIONS Water Pressure Switch Figure 26. NOTICE: Gas control is shown OFF. Figure 27. Push toggle switch away from you to switch ON. Manual Shut-off Valve TO TURN OFF GAS TO APPLIANCE MANUAL SHUT-OFF VALVE LOCATION Rev.

  • Page 34: Safety Controls

    Figure 29. Section 4. Operation Instructions SAFETY CONTROLS Figure 28. AIR FLOW SWITCH (AFS) WATER PRESSURE SWITCH Air Flow Switch WARNING Hazardous pressure. Do not bypass the Water Pressure Switch or render Figure 29. it inoperable. Water Pressure Switch NOTE: See, Below Pool Level Installation instructions on page 13 NOTICE: Turn star wheel clockwise to raise...
  • Page 35 Section 4. Operation Instructions SAFETY CONTROLS (continued) Flame Current Diagnostic LED Check Point 1 Flash - Air Flow Fault OPERATION OF IGNITION MODULE 2 Flashes - Flame No Call for Heat 3 Flashes - Ignition Lockout OPERATING THE CONTROL PANEL Figure 31.
  • Page 36 Section 4. Operation Instructions TEMPERATURE SETTING MAXIMUM TEMPERATURE SET POINT Max. Temp. Set Point POOL ON ▲ TEMP ▼ TEMP POOL ON SPA ON Max. Temp. Set Point ▲ TEMP ▼ TEMP SPA ON Max. Temp. Set Point Top Panel Door Acess Panel Door Acess Panel Figure 33.

  • Page 37: Section 5. Troubleshooting

    Section 5. Troubleshooting Troubleshooting Instruction Initial Troubleshooting Only qualified, trained service technicians with appropriate test equipment should service the heater. Remember that all parts of the system affect heater operation. Before starting this troubleshooting procedure, make sure that the pump is running correctly, that there are no blockages in the system, that the valves are correctly set and that the time clock is correctly set and is running.

  • Page 38: Initial Troubleshooting And Troubleshooting Chart

    Section 5. Troubleshooting Heater Will Not Fire - A Start Depress “POOL” or “SPA” ON Heater should fire on demand Is green “SPA” or button on Membrane Pad. for heat. “POOL” LED “on” Does “POOL” or “SPA” LED come on? Check that correct 12-pin Check for line voltage to Restore power to heater.
  • Page 39 Section 5. Troubleshooting Heater Will Not Fire - B Start Increase POOL/SPA tempera- Is red “SERVICE Is red “SERVICE SYSTEM” ture setting on Membrane HEATER” LED “on” LED on? Pad above actual water tem- perature. Heater should fire on demand for heat. If not, Verify that pump is on, filter is and no other red LED’s light, not blocked, and the water...
  • Page 40 Section 5. Troubleshooting Heater Will Not Fire - C Start Is “SERVICE HEATER” LED Go to “INITIAL “on”? TROUBLESHOOTING” Turn off power to heater for 5 seconds, Continue to observe heater and turn back on. for several minutes. Cycle Make sure tempera- heater on and off several ture setting is above times.
  • Page 41 Section 5. Troubleshooting Heater Will Not Fire - D IMPORTANT! READ ME FIRST! IMPORTANT! READ ME FIRST!! If your heater is correctly connected to 240 Volts AC, the meter will read either 0 VAC or 240 VAC. If your ICM is good, your meter will read some voltage between 0 and Ignition Control Module (ICM) will convert the 240VAC to an intermittent pulse to the ignitor.
  • Page 42 Section 5. Troubleshooting Diagnostic LED's: AGS, AFS, HLS, PS, THERMISTOR Verify that water flow rate is Service pump and filter to AGS or HLS "on" above minimum required for restore proper flow. After ser- heater. vicing, verify proper operation Replace High Limit of Pressure Switch (PS).

  • Page 43: Led Diagnostics

    Section 5. Troubleshooting Diagnostic LED's: SFS SFS "on" Check Heat Exchanger Coil for leaks, liming, soot, or low flow. Heater starts and runs OK, but temperature of exhaust climbs to 450˚–500˚ in 3–5 Check Thermal minutes. Regulator: Open at 120˚? Replace Heater (HD ) Membrane Pad.

  • Page 44: Burner / Heat Exchanger Troubleshooting

    Section 5. Troubleshooting Burner Troubleshooting SYMPTOM CAUSE REMEDY Loud, high-pitched whine Flame is too rich. Verify pressure tap between gas valve and blower inlet. See page 16 and verify that the gas regulator setting is –0.2" (–0.5cm) wc. Contact a qualified technician or service agency to replace the gas orifice.

  • Page 45: Section 6. Maintenance

    Section 6. Maintenance Maintenance Instructions CARE AND MAINTENANCE 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. WARNING Explosion hazard.

  • Page 46: After Start-Up

    Section 6. Maintenance AFTER START-UP CHECKING WATER FLOW WARNING Fire or flooding hazard. If the unit overheats and the burner fails to shut off, follow instructions under “To Turn Off Gas to the Appliance”, page 33, and call a qualified service technician to repair unit. SPRING AND FALL OPERATION WINTER OPERATION CAUTION...

  • Page 47: Maintaining Pool Temperature

    Section 6. Maintenance MAINTAINING POOL TEMPERATURE ENERGY SAVING TIPS CHEMICAL BALANCE POOL AND SPA WATER CAUTION Heat exchanger damage resulting from chemical imbalance is not covered by the warranty. WHAT A DISINFECTANT DOES WHAT IS A DISINFECTANT RESIDUAL? Rev. B 8/14 MASTERTEMP ®...

  • Page 48: Chemical Balance

    Section 6. Maintenance CHEMICAL BALANCE (continued) If pH becomes too high (over alkaline), it has these effects: CAUTION: Do not test for pH when the chlorine residual is 3.0 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. WATER CHEMISTRY PARAMETERS Disinfectant levels Minimum...
  • Page 49 For complete Water System parts breakdown (Key Nos. 8 through 9), see Page 52 Repair Parts are available from your Pentair dealer. If your dealer cannot supply you, call Customer Support at 1-800-831-7133. Rev. B 8/14 MASTERTEMP ® 125 Pool and Spa Heater Installation and User’s Guide...

  • Page 50: Replacement Parts

    Section 6. Maintenance/Replacement Parts ® MasterTemp 125 HEATER REPLACEMENT PARTS MASTERTEMP ® 125 Pool and Spa Heater Installation and User’s Guide Rev. B 8/14...
  • Page 51 Section 6. Maintenance/Replacement Parts ® MASTERTEMP 125 HEATER REPLACEMENT PARTS REPAIR PARTS – BURNER SYSTEM Model Part MT125 NA Qty. MT125 LP Description Combination Gas Control Valve Kit 42001-0051S 38404-4097S 3/4" Union Gas Orifice Gas Orifice O-Ring as Orifice Kit – NG (Incl. Key Nos. 3 and 4)† 474981 as Orifice Kit –...
  • Page 52 Section 6. Maintenance/Replacement Parts ® MASTERTEMP 125 HEATER REPLACEMENT PARTS REPAIR PARTS – WATER SYSTEM Model Part MT125 NA Description MT125 LP Qty. Tube Sheet Coil Assembly Kit (NA, LP) 474971 (Includes Key No.3) M anifold Kit (Includes Key Nos. 3-11. Key No.12 and 13 not included.
  • Page 53 Section 6. Maintenance/Replacement Parts ® MASTERTEMP 125 HEATER REPLACEMENT PARTS REPAIR PARTS – ELECTRICAL SYSTEM Part MT125 HD NA & LP Model 125 (NA/LP) Description Qty. (International) Heater Display Cover 42002-0035 Igniter Bracket 42001-0030S Igniter/Igniter Gasket Kit Incl. Key Nos. 3 and 4) 77707-0054 Igniter Gasket 42001-0066S...
  • Page 54 NOTES MASTERTEMP ® 125 Pool and Spa Heater Installation and User’s Guide Rev. B 8/14...
  • Page 55 NOTES Rev. B 8/14 MASTERTEMP ® 125 Pool and Spa Heater Installation and User’s Guide...
  • Page 56 United States and/ or other countries. Unless expressly noted, names and brands of third parties that may be used in this document are not used to indicate an affiliation or endorsement between the owners of these names and brands and Pentair Water Pool and Spa, Inc.

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