Pentair MasterTemp Operation & Installation Manual
120/240 vac natural gas/lp gas mastertemp pool & spa heater
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Attention Installer
Please give this manual to the owner and/or
operator once installation is complete.
Attention User
Please retain this manual for future reference, it
contains important information that will help you in
operating and maintaining this heater.
Call (800) 831-7133 for additional free copies of these instructions.
© 2007 Pentair Water Pool and Spa, Inc.
This document is subject to change without notice.
1620 Hawkins Ave., Sanford, NC 27330 • (800) 831-7133 • (919) 566-8000
10951 West Los Angeles Ave., Moorpark, CA 93021 • (800) 831-7133 • (805) 553-5000
All rights reserved.
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Table of Contents
Troubleshooting
Related Manuals for Pentair MasterTemp
Summary of Contents for Pentair MasterTemp
- Page 1 Call (800) 831-7133 for additional free copies of these instructions. © 2007 Pentair Water Pool and Spa, Inc. All rights reserved. This document is subject to change without notice.
- Page 2 Follow the gas supplier's instructions. • If you cannot reach your gas supplier, call the fire department. For additional free copies of this manual; call (800) 831-7133. Pentair Water Pool and Spa, Inc. 1620 Hawkins Ave., Sanford, NC 27330 (919) 566-8000 •...
- Page 3 Spa, Inc. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Pentair Water Pool and Spa, Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
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Page 4: Table Of Contents
Garage or Utility Room Installation ............................... Control Panel Indexing ..................................Final Installation Check ..................................Electrical Connections ..................................Fireman’s Switch Connection/Remote Control Connections ........................MasterTemp Wiring Diagram ................................. Electrical Schematic Ladder Diagram ..............................Section 4. Operation ....................... Basic System Operation ..................................HSI (Hot-Surface Ignition) Lighting/Operation ............................ -
Page 5: Section 1. Heater Identification Information
(HD = Heavy Duty Model) (ASME = ASME Certified Model) HEATER IDENTIFICATION INFORMATION — (HIN) H. I. N. HEATER IDENTIFICATION NUMBER ID DESIGNATOR FOR PENTAIR WATER POOL & SPA MASTERTEMP HEATERS Example: ASME = STANDARD MODEL CONSTRUCTION = = HEAVY DUTY MODEL... -
Page 6: Section 2. Introduction
MasterTemp. 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. -
Page 7: Code Requirements
Section 2. Introduction 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/NFPA54 and the National Electrical Code, ANSI/NFPA70 (U.S.), or standards CSA B149 – INSTALLATION CODES FOR GAS-BURNING APPLIANCES AND EQUIPMENT and/or local codes and Standard CSA C22.1 – Canadian Electrical Code, Part 1 (Canada). -
Page 8: Safety Information
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. Introduction SAFETY INFORMATION, (cont’d.) 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. -
Page 10: Section 3. Installation
Section 3. Installation Installation Instructions HEATER DESCRIPTION Figure 1 is a diagram of the heater showing how it operates. Precisely 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. -
Page 11: Specifications
Section 3. Installation 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. -
Page 12: Plumbing Connections
Section 3. Installation 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 to insure conformity with Pentair’s recommended PVC plumbing procedure. Other plumbing connections can be used. See... -
Page 13: Water Connections
Section 3. Installation WATER CONNECTIONS 3-Way Chlorinator Valve The heater requires proper water flow and pressure for its operation. See Figure 5 for the recommended installation. The filter pump discharges to the filter, the filter discharges Check Valve to the heater, and the heater discharges directly to the pool or spa. -
Page 14: Gas Connections
Section 3. Installation 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. -
Page 15: Gas Pipe Sizing
Then within a short distance of the pool heater, generally around 24 inches, they will install a second regulator, which is the second stage. This second stage regulator would be set at the minimum operating pressure for the heater. For “Natural Gas Pentair Pool Heaters” the minimum is 7 inches W.C. See “Gas Pressure Requirement Charts”... -
Page 16: Testing Gas Pressure/Gas Pressure Requirements
Section 3. Installation 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. 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). -
Page 17: Outdoor Installation
Section 3. Installation 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. -
Page 18: Outdoor Installation Venting Guidelines
Section 3. Installation OUTDOOR INSTALLATION VENTING GUIDELINES SIDE VIEW Property Line 4 ft. Window Force Air Inlet 4 ft. Exhaust Grill (Vent) Building Vent Termination: Must be at least 3 ft. above any forced air inlet located within a 10 ft. radius. Must be located 4 feet away from the building wall openings, and at the following distances away from any door, window, or gravity air inlet:... -
Page 19: Indoor Venting-General Requirements (Category I & Category Iii - Clarification)
The vent pipe must be the same size or larger. The MasterTemp heaters are capable of a 270-degree discharge rotation and operate with a positive vent static pressure and with a vent gas temperature less than 400° F. The total length of the... -
Page 20: Combustion Air Supply
Codes, as applicable, and any local codes that may apply.. These openings shall directly, or through duct, connect to outdoor air. Pentair Water Pool and Spa, Inc. does not recommend indoor installations that do not provide combustion c i d... -
Page 21: Vent Installation (Indoor Installation For U.s. Or Outdoor Shelter For Canada)
Section 3. Installation 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 Always vent the heater to the outdoors, see Note*. more above the roof must be braced or guyed. - Page 22 Section 3. Installation 2. Install the metal Flue Collar in the Vent Body of the heater (located under the outside vent cover). Fasten the metal Flue Collar to the Vent Listed Termination Body with two #10 sheet metal screws. Use Min.
- Page 23 Section 3. Installation 4. Install vent pipe so that it can expand and contract freely as the temperature changes. Support the vent pipe according to applicable codes and the vent manufacturer’s instructions. Pipe support must allow the vent pipe free movement out and back, from side to side, or up and down as necessary, without putting a strain on the heater or vent body.
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Page 24: Horizontal Or Vertical Venting - Positive Pressure
Table 11. be necessary in certain installations such as cold climates. Horizontal vents 3’ (1M) or less in length do not require a condensate tee. The MasterTemp heater is suitable for through-the-wall venting. CAUTION Do NOT combine exhaust vent pipes to a common exhaust vent in multiple unit installations. Run separate vent pipes. - Page 25 Section 3. Installation 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.
- Page 26 Section 3. Installation 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...
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Page 27: Outdoor Shelter Vent Installation
Section 3. Installation OUTDOOR SHELTER INSTALLATION In Canada, 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. 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 28: Control Panel Indexing
Section 3. Installation CONTROL PANEL INDEXING On an outdoor shelter installation, the exhaust discharges into a vent pipe. Top Panel Orient the heater so that the vent pipe does not interfere with adjustment of the Door operating controls. The control panel located on the top panel can be rotated to Access Panel any of the three sides of the heater for easy access, see... -
Page 29: Electrical Connections
Section 3. Installation ELECTRICAL CONNECTIONS Electrical Rating 60 Hz 120 / 240 Volts AC, single phase Enclose the 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. CAUTION This heater is designed to operate at 120 or 240 VAC. -
Page 30: Fireman's Switch Connection/Remote Control Connections
3. Open control box cover (see Figure 21). 4a. To connect a 2-Wire Control (such as Pentair’s IntelliTouch or EasyTouch) 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. -
Page 31: Mastertemp Wiring Diagram
Section 3. Installation MASTERTEMP 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,... -
Page 32: Electrical Schematic Ladder Diagram
Section 3. Installation MASTERTEMP 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... -
Page 33: Section 4. 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 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. -
Page 34: Operating
Section 4. Operation OPERATING INSTRUCTIONS 1. STOP! Read the safety information on (page 32). Water Pressure 2. Set both pool and spa thermostats to the lowest settings. Switch 3. Turn off all electric power to the appliance. 4. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. -
Page 35: Safety Controls
A reference scale is on based on a water temperature set point within the back of pressure switch the “High Limit Device”. The MasterTemp series of heaters contains two (2) high limit devices which are located on the main inlet / outlet header. -
Page 36: Operation Of Ignition Module
Section 4. Operation SAFETY CONTROLS, (cont’d.) Diagnostic LED Flame Current - Air Flow Fault 1 Flash Check Point 2 Flashes - Flame No Call for Heat OPERATION OF IGNITION MODULE 3 Flashes - Ignition Lockout , (see Figure 30), The Ignition Module is microprocessor based and operates on 24VAC supplied by the transformer. - Page 37 Section 4. Operation 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.
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Page 38: 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 39: Heater Will Not Fire Troubleshooting
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 40 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 41 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 42 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.
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Page 43: Led Diagnostics
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 44 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.
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Page 45: 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 15 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 46: 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. The following maintenance is recommended every six months and at the start of every swimming season: 1. -
Page 47: 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. After start-up, the outlet water pipe should feel slightly warmer than the inlet pipe. -
Page 48: Maintaining Pool Temperature
CHEMICAL BALANCE POOL AND SPA WATER Your Pentair pool heater was designed specifically for your spa or pool and will give you many years of trouble-free service, provided you keep your water chemistry in proper condition. Water chemistry should follow good swimming pool water chemistry practices. When using a chlorinator, install it down stream from the heater and at a lower level than the heater outlet. -
Page 49: Chemical Balance
Section 6. Maintenance CHEMICAL BALANCE, (cont’d.) It is wise to test pool water regularly. Never allow chlorine residual to drop below 0.6 ppm (parts per million). The minimum level for effective chlorine or bromine residual is 1.4 ppm. pH - The term pH refers to the acid/alkaline balance of water expressed on a numerical scale from 0 to 14. A test kit for measuring pH balance of your pool water is available from your local pool supply store;... -
Page 50: Replacement Parts
See Page 51 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. C 10-5-07 P/N 472592... - Page 51 MASTERTEMP REPLACEMENT PARTS For Heater mounting bolts and clamps, purchase separately Bolt Down Bracket Kit, Part No. 460738. Lead Anchor P/N 472592 Rev. C 10-5-07...
- Page 52 MASTERTEMP REPLACEMENT PARTS REPAIR PARTS – BURNER SYSTEM Model Part 175NA 200NA 250NA 300NA 400NA Qty. Description 175LP 200LP 250LP 300LP 400LP Combination Gas Control Valve Kit 42001-0051S 42001-0051S 42001-0051S 42001-0051S 42001-0051S 3/4" Union 38404-4097S 38404-4097S 38404-4097S 38404-4097S 38404-4097S Gas Orifice Gas Orifice O-Ring •...
- Page 53 MASTERTEMP REPLACEMENT PARTS REPAIR PARTS – WATER SYSTEM Model Part 175NA - 200NA 250NA 300NA 400NA Description Qty. 175LP - 200LP 250LP 300LP 400LP Tube Sheet Coil Assembly Kit (NA, LP Series) (Includes Key No.3) 77707-0232 460747 77707-0233 77707-0234 Tube Sheet Coil Assembly Kit (NA – HD Series) (Includes Key No.3)
- Page 54 MASTERTEMP REPLACEMENT PARTS REPAIR PARTS – ELECTRICAL SYSTEM Model Part 175NA - 200NA 250NA 300NA 400NA Description Qty. 175LP - 200LP 250LP 300LP 400LP Heater Display Cover 42002-0035 42002-0035 42002-0035 42002-0035 Igniter Bracket 42001-0030S 42001-0030S 42001-0030S 42001-0030S Igniter/Igniter Gasket Kit Incl. Key Nos. 3 and 4)
- Page 55 NOTES P/N 472592 Rev. C 10-5-07...
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Page 56: Rev. C 10-5-07 P/N
NOTES Rev. C 10-5-07 P/N 472592...