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OPERATION & INSTALLATION MANUAL
FOR YOUR SAFETY - READ BEFORE OPERATING
Warning:
If you do not follow these instructions exactly, a fire or explosion may
result, causing property damage, personal injury or loss of life.
For additional free copies of this manual; call (800) 831-7133.
U.S. Patent Numbers
6,295,980
5,318,007 - 5,228,618
5,201,307 - 4,595,825
Warning: Improper installation, adjustment, alteration, service or maintenance can
cause property damage, personal injury or death. Installation and service must be
performed by a qualified installer, service agency or the gas supplier.
For Your
Safety
Rev. C 1-22-04
MiniMax CH
POOL & SPA HEATERS
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch; do not use any phone in your building.
Immediately call your gas supplier from a neighbor's phone.
Follow the gas supplier's instructions.
If you cannot reach your gas supplier, call the fire department.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or other appliances.
Pentair Pool Products, Inc.
1620 Hawkins Ave., Sanford, NC 27330
10951 W. Los Angeles Ave., Moorpark, CA 93021
®
WARNING
WARNING
(919) 774-4151
(805) 523-2400
1 1
1
To
Consumer
Retain For
Future
Reference
P/N 472128

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   Summary of Contents for Pentair Pool Products MiniMax CH

  • Page 1

    Rev. C 1-22-04 MiniMax CH ® POOL & SPA HEATERS WARNING WARNING Pentair Pool Products, Inc. 1620 Hawkins Ave., Sanford, NC 27330 (919) 774-4151 • 10951 W. Los Angeles Ave., Moorpark, CA 93021 Consumer Retain For...

  • Page 2: Table Of Contents

    Trouble Shooting (General) ... 18 MiniMax CH Parts List & Exploded View ... 19-21 MiniMax CH (150 IID Model) Appendix ... A1-A9 MiniMax CH (150 IID Model) Parts List & Exploded View ... A10-A12 Warranty Information ... P/N 472128 Back Cover...

  • Page 3: Introduction, Important Notices

    The MiniMax CH is a compact, lightweight and efficient gas fired high performance pool and spa heater that can be directly connected to schedule 40 PVC pipe and has a built-in top. The MiniMax CH is a millivolt heater and has a self sustaining pilot and requires NO external power source.

  • Page 4: Warranty Information, Operation, Safety Rules

    MiniMax CH high performance heater. The information in this manual applies to the MiniMax CH 150, 200, 250, 300, 350, and 400 natural gas and propane (LP) models. It is very important that the owner/installer read and understand the section covering installation instructions, and recognize the local and state codes before installing the MiniMax CH.

  • Page 5: Lighting Instructions, To Turn Off Gas To Heater

    Operation (contd.) MINIMAX CH MILLIVOLT LIGHTING/OPERATION- FOR YOUR SAFETY: READ BEFORE LIGHTING If you do not follow these instructions exactly, a fire or explosion may result causing personal injury, loss of life and property damage. Since propane gas is heavier than air, escaping propane will accumulate and remain at ground level. Do not attempt to light the heater.

  • Page 6: Operating (controls)

    Operation (contd.) OPERATING (CONTROLS) Dual Temperature Control System For convenience and economy all MiniMax CH heaters are equipped with two thermostats on the front of the heater control panel; see Figure 5. THERMOSTAT KNOB STOPPER Each thermostat is equipped with a mechanical...

  • Page 7: Maintenance, Maintenance Instructions, Relief Valve, Energy Saving Tips, Spring And Fall Operation, Winter Operation

    The MiniMax CH should not be operated out doors at temperatures below 0° F. for propane and -20° F. for natural gas. Where freezing is possible, it is necessary to drain the water from the heater.

  • Page 8: Chemical Balance

    Maintenance (contd.) CHEMICAL BALANCE POOL AND SPA WATER Your Pentair Pool Products 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.

  • Page 9: Installation Instructions, Specifications

    Installation Instructions SPECIFICATIONS IMPORTANT NOTICE: 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.

  • Page 10: Plumbing Connections, Plumbing/valves, Manual Bypass, Below Pool Installation

    Required when installation is below water level. Required when flow rates exceed 120 gpm. PLUMBING CONNECTIONS The MiniMax CH heater has the unique capability of direct schedule 40 PVC plumbing connections. CAUTION Before operating the heater on a new installation,...

  • Page 11: Water Connections

    INSULATING THE HIGH LIMITS When Reversing Heads on the MiniMax CH Heater On the MiniMax CH heater there is insulation installed by the factory on the return head side of the heaters. This insulation is there so that if the heads are reversed...

  • Page 12: Gas Connections, Gas Line Installation

    Installation (contd.) 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 13: Regulated Manifold Pressure Test

    . n i . n i . n i Table 8. Figure 11. MINIMAX CH GAS PRESSURE REQUIREMENTS* Maximum inlet gas pressure Minimum inlet gas pressure Normal manifold pressure ** 6 WC for 400 model *All Readings are taken with the heater fired. Any adjustments made with heater off will give incorrect readings.

  • Page 14: Ventilation

    6" 6" OUTDOOR VENT CAP INSTALLATION The MiniMax CH heater is shipped standard as an outdoor stackless unit. To install the outdoor vent kit: 1. Take out the louvered outer top after first removing all 1/4 in. sheet metal screws attaching it along its perimeter to the cabinet.

  • Page 15

    Installation (contd.) INDOOR INSTALLATION (USA ONLY) OUTDOOR SHELTER INSTALLATION (CANADA) All products of combustion and vent gases must be completely removed to the outside atmosphere through a vent pipe which is connected to the draft hood. A vent pipe extension of the same size must be connected to the draft hood and extended at least 2 feet higher than highest point of the roof within a 10 foot horizontal radius, and at least 3 ft.

  • Page 16: Installation On Floors Constructed Of Combustible Materials, Indoor Draft Hood Installation

    Installation (contd.) NOTE The heater requires two uninterrupted air supply openings; one for ventilation and one to supply oxygen for proper gas combustion. The air supply openings should be sized according to Tables 12. and 13. Air supply requirements below apply to all MiniMax heaters All opening sizes are minimum and unobstructed.

  • Page 17: Electrical, Millivolt Wiring Diagram

    GAS VALVE THERMOSTAT BOARD NOTE: When connecting a remote control to the MiniMax CH, you must install the low voltage thermostat wires in separate conduit from ANY line voltage wires. Failure to follow these instructions will cause the thermostat relay to react Rev.

  • Page 18: Trouble Shooting (general)

    Troubleshooting - General Possible Cause Heater will not come on Pump not running Pump air locked Filter dirty Pump strainer clogged Defective wiring or connection Defective pressure switch Defective gas controls On-Off switch in "OFF" position Heater Short Cycling Insufficient water flow Defective wiring Defective flow valve or out of adjustment Defective hi-limit and/or thermostat...

  • Page 19

    MINIMAX CH HEATER - ALL MODELS Rev. C 1-22-04 P/N 472128...

  • Page 20

    ° 0 h t i e l f e l f l f f P/N 472128 MiniMax CH Parts List v i l t l o v i l t l o v i l t l o t e l Rev.

  • Page 21

    ) y l " " L o l i t a l Rev. C 1-22-04 MiniMax CH Parts List, contd. s t i ) y l t l o ) s l v i l t l o...

  • Page 22

    NOTES P/N 472128 Rev. C 1-22-04...

  • Page 23

    Rev. C 1-22-04 ® (150 IID Model) POOL & SPA HEATERS (APPENDIX) WARNING WARNING Pentair Pool Products, Inc. 1620 Hawkins Ave., Sanford, NC 27330 (919) 774-4151 • 10951 W. Los Angeles Ave., Moorpark, CA 93021 (805) 523-2400 • 23 1...

  • Page 24: Operating Instructions, To Turn Off Gas To Appliance

    E. The MiniMax CH incorporates (9) nine indicator lights to aid you in the operation of the heater, and to assist in diagnosing a failure in the heater’s function.

  • Page 25

    Shut off gas line at propane tank. Safety Lockout: This MiniMax CH Propane Heater is equipped with a 100% safety lockout feature. If the pilot does not light within a maximum of 90 seconds, lockout will occur. 1. STOP! Read the safety information above.

  • Page 26

    Operation (contd.) OPERATING (CONTROLS) Dual Temperature Control System - For convenience and economy all MiniMax CH heaters are equipped with two thermostats on the front of the heater control panel; see Figure 3. Figure 3. THERMOSTAT KNOB STOPPER Each thermostat is equipped with a mechanical stop that can be locked or unlocked with use of a screwdriver to prevent temperatures in excess of that desired by the user;...

  • Page 27

    Operation (contd.) HEAT (HEAT) The heat light is on any time the thermostat has signaled a call for heat which initializes the ignition safety firing circuit -- the light comes on to indicate successful firing of the main burners. TROUBLESHOOTING (CONTROLS) Example of troubleshooting with the assistance of the indicator lights.

  • Page 28

    Operation (contd.) TROUBLESHOOTING (CONTROLS) - Continued TRANSFORMER INCOMING CIRCUIT LINE VOLTAGE BREAKER POWER THERM SERVICE PRESS HEAT FRONT PANEL LEDS TRANSFORMER INCOMING CIRCUIT LINE VOLTAGE BREAKER THERM POWER SERVICE PRESS THERMOSTAT CALLING FOR HEAT - BLOWN THERMAL FUSE BLOCKS FIRING HEAT NOTE: SERVICE LED LIT FLAGS PROBLEM, TFUSE LED OFF SHOWS PROBLEM FRONT PANEL LEDS...

  • Page 29

    Installation REGULATED MANIFOLD PRESSURE TEST 1. Attach the manometer to the heater jacket. 2. Shut off the main gas valve. 3. Remove 1/8 in. NPT plug on the outlet side of the valve and screw in the fitting from the manometer kit. 4.

  • Page 30

    Installation (contd.) MiniMax CH (150 IID Model) Electronic Ignition Wiring Diagram PLUG P/N 472128 PLUG TFUSE HLMT PRESS Rev. C 1-22-04...

  • Page 31

    THERMOSTAT SELECT SWITCH 2 Wire Remote NOTE: When connecting a remote control to the MiniMax CH, you must install the low voltage thermostat wires in separate conduit from ANY line voltage wires. Failure to follow these instructions will cause the thermostat relay to react Rev.

  • Page 32

    MINIMAX CH HEATER - 150 IID MODEL P/N 472128 A-10 Rev. C 1-22-04...

  • Page 33

    MiniMax CH Parts List - 150 IID Model t i k t i k , t l " 8 c t i v i l t l o t o l t o l c t i e l f e l f Rev.

  • Page 34

    MiniMax CH Parts List - 150 IID Model, contd. e l l t s i c i t p i l v i l t l o " 4 " 2 " 4 " 2 t l o - "...

  • Page 35

    NOTES Rev. C 1-22-04 P/N 472128 A-13...

  • Page 36: Save These Instructions

    36 40 SAVE THESE INSTRUCTIONS. Pentair Pool Products, Inc. 1620 Hawkins Ave., Sanford, NC 27330 (919) 774-4151 • 10951 W. Los Angeles Ave., Moorpark, CA 93021 (805) 523-2400 • P/N 472128 Rev. C 1-22-04...

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