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MiniMax Plus and PowerMax
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
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
Rev. E 2-7-01
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
(919) 774-4151
(805) 523-2400
1 1
Retain For
P/N 471048


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   Summary of Contents for Pentair Pool Products MiniMax Plus

  • Page 1

    MiniMax Plus and PowerMax POOL & SPA HEATERS OPERATION & INSTALLATION MANUAL WARNING 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.

  • Page 2: Table Of Contents

    Transformer Wiring Instruction ..............................Electrical Wiring Diagram ................................Remote Control Wiring ................................. Trouble Shooting (General) ..................23 MiniMax Plus Parts List & Exploded View ............... 24-26 PowerMax Appendix ....................A1-A9 PowerMax Parts List & Exploded View ..............A10-A13 Warranty Information ....................

  • Page 3: Introduction

    The MiniMax Plus 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 Plus, also comes equipped with PurexTriton’s nine function indicator lights (electronic ignition only) which show, at a glance, the proper functioning of the heater.

  • Page 4: Warranty Information

    WARRANTY INFORMATION This instruction manual provides operating instructions, installation and service information for The MiniMax Plus pool heater is sold with a limited the MiniMax Plus high performance heater. The factory warranty. Specific details are described on information in this manual applies to the MiniMax...

  • Page 5: Electronic Ignition Lighting/operation - Natural

    Do not try to light any heater. control which has been under water. Do not touch any electrical switch; do not use E. The MiniMax Plus incorporates (9) nine any phone in your building. indicator lights to aid you in the operation of the...

  • Page 6: Electronic Ignition Lighting/operation - Propane

    Do not tamper with the heater because it is dangerous and voids all warranties. Safety Lockout: This MiniMax Plus 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. OPERATING INSTRUCTIONS 1.

  • Page 7: Millivolt Lighting/operation - Natural & Propane

    Operation (contd.) MINIMAX PLUS MILLIVOLT LIGHTING/OPERATION- NATURAL GAS & PROPANE FOR YOUR SAFETY: READ BEFORE LIGHTING WARNING If you do not follow these instructions exactly, a fire or explosion may result causing personal injury, loss of life and property damage.

  • Page 8: Operating (controls)

    OPERATING (CONTROLS) Dual Temperature Control System - (Electronic and Millivolt Models) For convenience and economy all MiniMax Plus heaters THERMOSTAT ADJUSTMENT are equipped with two thermostats on the front of the heater The knob with locking feature eliminates the need for control panel;...

  • Page 9

    Operation (contd.) HEAT (HEAT) SERVICE (SERVICE) The heat light is on any time the thermostat has The service light is off during normal operation of signaled a call for heat which initializes the ignition heater. The light only comes on if a problem with a control has occurred or when the heater is first safety firing circuit -- the light comes on to indicate successful firing of the main burners.

  • Page 10

    Operation (contd.) TROUBLESHOOTING (CONTROLS) - Continued P/N 471048 Rev. E 2-7-01...

  • Page 11: Maintenance

    It would be a heating your swimming pool. The MiniMax Plus should good practice to use compressed air to blow the water not be operated out doors at temperatures below 0°...

  • Page 12: Chemical Balance

    POOL AND SPA WATER If pH becomes too high (over alkaline), it has these effects: Your Pentair Pool Products pool heater was designed specifically for your spa or pool and will give you many 1. Greatly lowers the ability of chlorine to destroy years of trouble free service provided you keep your bacteria and algae.

  • Page 13: Installation Instructions

    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 14: Water Connections

    PLUMBING CONNECTIONS 9/16 in. Socket and Wrench 1/2 in. & 9/16 in. Open Wrench The MiniMax Plus heater has the unique capability of 1. Remove the inspection plates. direct schedule 40 PVC plumbing connections. A 2. Disconnect all wires from the high-limit Quick-Flange has been included with the MiniMax switches except the short jumper wire.

  • Page 15: Quick Flange Installation

    Installation (contd.) WATER CONNECTIONS QUICK-FLANGE INSTALLATION INSTRUCTIONS Each MiniMax Plus Quick-Flange Accessory Kit contains the following items: One (1) Quick-Flange unit Two (2) 2 in. Rubber gaskets Four (4) 3/8 Bolts Four (4) 3/8 in. Washers Two (2) Plastic sleeves FOR 1½...

  • Page 16: Gas Connections

    The use of Flexible Connectors (FLEX) is NOT another nonflammable method. recommended as they cause high gas pressure drops. A manual main shut-off valve must be installed MINIMAX PLUS GAS PRESSURE REQUIREMENTS* externally to the heater. Propane Natural Maximum inlet gas pressure 10 in.

  • Page 17: Ventilation

    OUTDOOR VENT CAP INSTALLATION 6" 24" The MiniMax Plus 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 18"...

  • Page 18: Indoor Installation Requirements

    Installation (contd.) INDOOR INSTALLATION (USA ONLY) OUTDOOR SHELTER INSTALLATION (CANADA) (See additional instructions for outdoor PowerMax units in PowerMax Appendix) All products of combustion and vent gases must Installations in basements, garages, or be completely removed to the outside atmosphere underground structures where flammable liquids through a vent pipe which is connected to the may be stored must have the heater elevated 18...

  • Page 19: Installation On Floors Constructed Of Combustible Materials

    Installation (contd.) NOTE The heater requires two uninterrupted air supply b) Construct a non-combustible base from masonry openings; one for ventilation and one to supply blocks as illustrated, see Figure 23. oxygen for proper gas combustion. The air supply openings should be sized according to Tables 10. and 11.

  • Page 20: Indoor Draft Hood Installation

    Installation (contd.) INDOOR DRAFT HOOD INSTALLATION Draft Hood Top Cover 1. Take out the louvered outer top piece after first removing the sheet metal screws, attaching it to Adaptor the cabinet. Screw (2 PLC's) 2. Install the adaptor (vent kit). 3.

  • Page 21: Electrical Wiring Diagram

    Installation (contd.) MiniMax Plus Electronic Ignition Wiring Diagram PLUG PLUG Rev. E 2-7-01 P/N 471048...

  • Page 22: Remote Control Wiring

    THERMOSTAT SELECT SWITCH Figure 29. NOTE: When connecting a remote control to the MiniMax Plus, 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 erratically..

  • Page 23: Troubleshooting - General

    Heater exchanger scaled Shut off gas supply and call serviceperson CAUTION Please consult the latest edition of the “MiniMax Plus Service Manual” for complete service and repair instructions. Repairs should only be attempted by properly trained service personnel. Rev. E 2-7-01...

  • Page 24: Minimax Plus Parts List & Exploded View

    MINIMAX PLUS HEATER - ALL MODELS P/N 471048 Rev. E 2-7-01...

  • Page 25

    MiniMax Plus (Only) Parts List " 8 " 2 " 8 " 2 " 8 " 1 & v i l v i l v i l v i l v i l v i l v i l " 4...

  • Page 26

    MiniMax Plus (Only) Parts List, contd. " ½ " l l i l l i " " " " " " f i r f i r l l i l l i l l i I I ( I I ( "...

  • Page 27

    PowerMax Pool & Spa Heater OPERATION & INSTALLATION MANUAL (APPENDIX) INSTALLER: AFFIX THESE INSTRUCTIONS TO OR ADJACENT TO POOL & SPA HEATER Pentair Pool Products, Inc. 1620 Hawkins Ave., Sanford, NC 27330 (919) 774-4151 • 10951 W. Los Angeles Ave., Moorpark, CA 93021 (805) 523-2400 •...

  • Page 28

    28 28 PowerMax Pool and Spa Heater INTRODUCTION This manual provides information for the proper installation, operation and maintenance of the PowerMax pool and spa heater. Please read these installation and operation instructions thoroughly before attempting installation or operation of your pool and spa heater.

  • Page 29

    MOUNTING ASSEMBLY Follow these instructions if the PowerMax venting system was purchased as an assembly kit. Remove the vent kit assembly (indoor). Mount the plenum assembly on the flue collector top using the screw provided. Connect the wire harness to the heater control box. Follow the instructions on page 5.

  • Page 30

    30 30 VENTING The vent pipe must be the same size or larger than what is indicated in Table 1. The PowerMax heaters are capable of a 360-degree discharge rotation and operate with a positive vent static pressure and with a vent gas temperature less than 400 F.

  • Page 31

       INDOOR INSTALLATIONS vent terminated at POWERMAX VENTING GUIDELINES least 24" above any object within 10 ft. 10 ft. Vent Ridge 2 ft. min. 3 ft. min. 1' min. Detail H 1' min. Vent Hood Air Supply Ventilation Chimney Vent Hood Vent for roof penetration installations:...

  • Page 32

    OUTDOOR INSTALLATION POWERMAX VENTING GUIDELINES Outdoor Stack Kit Property Line 6 in. min. Walkway Check local building codes The Vent: for setback requirements. Must extend a minimum of 2 ft. above the vent connector for vertical stack. Terminate with a listed vent/weather cap Vent Termination: for a vertical stack, not required for a horizontal stack.

  • Page 33

    PowerMax Electronic Ignition Wiring Diagram PLUG PLUG Rev. E 2-7-01 P/N 471048...

  • Page 34

    INSTRUCTION FOR WIRING A POWERMAX INDUCED DRAFT ASSEMBLY TO A POOL HEATER WITH IID IGNITION. WARNING Make sure all power is off before wiring the heater. The Power vent assembly only operates on a 120 VAC. The following instructions configure the power vent assembly to operate with the PowerMax on a single 120 VAC circuit.

  • Page 35


  • Page 36

    POWERMAX HEATER - ALL MODELS A-10 P/N 471048 Rev. E 2-7-01...

  • Page 37

    PowerMax Heater (Only) Parts List s t r l i a , x i - A ) t l o " 8 " 2 - " " 2 " 8 " 1 c r i t i u a t l c r i D I I i t c...

  • Page 38

    PowerMax Heater (Only) Parts List, contd. i h s / n i , e v " 2 , e v / n i " ½ t u h f f o n i ( ) t u t i w h t i e l f f e l f f...

  • Page 39

    PowerMax Assembly PowerMax Assembly Parts List & c i l . t f i t l . t f A-13 Rev. E 2-7-01 P/N 471048...

  • Page 40: Limited Warranty

    MiniMax Plus and PowerMax Heaters Limited Warranty Your MiniMax Plus pool heater is another quality product from Pentair Pool Products, Inc. and is backed by the following warranty. 1. The following parts are warranted for 5 years from date of purchase: The MiniMax Plus and PowerMax cabinet and combustion chamber, the main burners and burner manifold, the inlet/outlet header and the return header.

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