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Rev. F  1-22-04

P/N 471105

Introduction

MiniMax

®

 75 & 100

ABOVEGROUND POOL AND SPA HEATERS

Congratulations on your purchase of a MiniMax 100 high performance heating system. Proper installation and
service of your new heating system and correct chemical maintenance of the water will ensure years of enjoyment.
The MiniMax 100 is a compact, lightweight and efficient gas fired high performance aboveground pool and spa
heater that can be connected to schedule 40 CPVC or ABS pipe and has a built-in top. Unless noted otherwise, all
instructions refer to both the MiniMax 75 and MiniMax 100 heaters designated collectively as the "MiniMax 100".
The heater features include the following features.

• Reliable direct-spark ignition (DSI) system available in propane or natural gas versions.
• Millivolt standing pilot versions in propane and natural gas, when no convenient line power is present.
• Fuel gas input of 100,000 btu/hr with thermal efficiency in excess of 82%, (74,999 for the 75 Model).
• Quiet and dependable operation from packaged burner system proven reliable in worldwide usage.
• Heat exchanger constructed of premium non-corroding materials including bronze headers standard.
• The controls have been designed to be very easy to troubleshoot and very easy to access and replace in the

rare event of a malfunction-making the MiniMax 100 user friendly.

IMPORTANCE NOTICES FOR THE INSTALLER AND OPERATOR.

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.
These heaters are designed for the heating of swimming pools and spas, and should never be employed for use as
space heating boilers, general purpose water heaters, or for the heating of salt water.

CODES

The installation must conform with local codes or in the absence of local codes with the latest National Fuel Gas
Code, ANSI Z223.1, and the latest edition of the National Electrical Code, NFPA 70.
Installation in Canada to be made in accordance with the latest CAN/CGA-B149.1 or .2 and CSA C22.1
Canadian Electric Code, part 1.

Содержание 75

Страница 1: ...ust be performed by a qualified installer service agency or the gas supplier To Consumer Retain For Future Reference MiniMax 75 100 ABOVEGROUND POOL SPA HEATERS OPERATION INSTALLATION MANUAL IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS SAVE THESE INSTRUCTIONS WARNING WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any ph...

Страница 2: ...ical Balance 11 Pool and Spa Water 11 Installation Instructions 12 Specifications 12 Outdoor Installation 12 Indoor Installation 12 Plumbing Connections 13 ManualBypass 13 Valves 13 Pressure Switch 13 Water Connections 14 Quick Flange II Installation Instructions 14 Gas Connections 15 GasLine Installation 15 Pipe Sizing Chart Gas Pressure Requirements 15 Regulated Manifold Pressure Test 15 Gas Pre...

Страница 3: ...del Quiet and dependable operation from packaged burner system proven reliable in worldwide usage Heatexchangerconstructedofpremiumnon corrodingmaterialsincludingbronzeheadersstandard The controls have been designed to be very easy to troubleshoot and very easy to access and replace in the rareeventofamalfunction makingtheMiniMax100userfriendly IMPORTANCE NOTICES FOR THE INSTALLER AND OPERATOR The...

Страница 4: ...smanualappliestotheMiniMax75 and100 naturalgasand propane DSI andMiniMax100millivoltstandingpilotheatermodels Itisveryimportanttheowner installerreadandunderstandthesectioncoveringinstallationandrecognizethe local code and state codes before installing the MiniMax 100 History and experience have shown that most heater damage is caused by improper installation practices WARRANTY INFORMATION The Min...

Страница 5: ...Set the thermostat to lowest setting fully counterclockwise 3 Turn off electric power to the heater 4 This heater is equipped with an ignition device which automatically lights the main burner Do not try to light the main burner by hand 5 Remove the control access door 6 Turn the gas control lever horizontally to OFF see Figure 1 7 Wait five 5 minutes to clear out any gas If you then smell gas STO...

Страница 6: ...rformed 3 Remove control access door 4 Turn gas control lever horizontally to OFF Do not force 5 Replace control access door Operation contd MILLIVOLT LIGHTING OPERATION NATURAL GAS PROPANE FOR YOUR SAFETY READ BEFORE LIGHTING Figure 4 PILOT ADJ IN ON OFF VENT TH TP TH TP A This heater has a pilot that must be lit manually When lighting the pilot follow these instructions exactly B BEFORE LIGHTING...

Страница 7: ...nd the demand for heat ends the main valve is de energized immediately Screw A Operation contd Knob Stopper Figure 5 OPERATING CONTROLS DIRECT SPARK ELECTRONIC AND MILLIVOLT MODELS For convenience and economy all MiniMax 100 heaters are equipped with a thermostat on the front of the heater control panel see Figure 5 Direct Spark MiniMax 100 heaters are equipped withanelectronicthermostatwhileMilli...

Страница 8: ...re is considerable air trapped in the gas supply line unsuccessful ignition indicates other problems with the ignition system such as an unclean ignition electrode impeding flame sensing 3 If the thermostat is still calling for heat one hour after a lockout the control will automatically reset and attempt to ignite the burner again Flame Failure Re Ignition 1 If the established flame signal is los...

Страница 9: ...Shorted Ign electrode B Open HV Ign cable C Miswired D Bad DSI control 4 Spark on no valve A Valve coil open B Open valve wire C Bad control also check voltage between V1 V2 5 Flame okay during A Bad electrode TFI no flame sense B Bad S1 or HV wire after TFI C Poor ground at burner D Poor flame check flame sensor current which follows Operation Heater contd Flame Sensor Current Check Flame current...

Страница 10: ... weekends it is not necessary to leave the thermostat set at 78 F Lower the temperature to a range that can be achieved easily in one day Generally this would be 10 F to 15 F if pool heater is sized properly 7 During the winter or while on vacation turn heater off 8 Set up a regular program of preventative maintenance for the heater each new swimming season Check heat exchanger controls burners op...

Страница 11: ...s 7 neutral Weak Lye solution have a pH of 13 14 RULE 7 4 to 7 6 is a desirable pH range It is essen tial to maintain correct pH see Table 2 Maintenance contd If pH becomes too high over alkaline it has these effects 1 Greatly lowers the ability of chlorine to destroy bacteria and algae 2 Water becomes cloudy 3 There is more danger of scale formation on the plaster or in the heat exchanger 4 Filte...

Страница 12: ...d on a level surface consisting entirely of or a combination of noncombustible materials such as steel iron brick tile concrete slate or plaster Do not install on carpeting The heater must be installed to keep specific clearances on all sides for service and inspection SPECIFICATIONS Indoor Installation Outdoor Installation OUTDOOR INSTALLATION Stackless applies to all MiniMax 100 outdoor models C...

Страница 13: ... has the unique capability of direct schedule 40 or 80 CPVC ABS PVC plumbing connections Either a Quick Flange or Quick Flange II depending on model ordered has been included with the MiniMax 100 to insure conformity with Pentair Pool Products recommended CPVC ABS plumbing procedure see Figure 9 Other plumbing connections can be used The instructions on the following pages show the methods forsucc...

Страница 14: ...uick Flange II a Or first thread a 1 in npt x 1 in slip CPVC ABS male adaptor not supplied to the Quick Flange II and after preparing the joint by sanding with a medium grit sandpaper glue the pipe to the adaptor with a quality solvent glue NOTE ALL VERSIONS OF THE MINIMAX 100 INCLUDE A QUICK FLANGE II ADAPTOR Each MiniMax 100 Quick Flange II Accessory Kit p n 471083 contains the following items O...

Страница 15: ...r The gas line from the meter will usually be of a larger size than the gas valve supplied with the heater Therefore a reduction of the connecting gas pipe will be necessary Make this reduction as close to the heater as possible The heater and any other gas appliances must be disconnected from the gas supply piping system during any pressure testing on that system greater that PSIG The heater and ...

Страница 16: ...any fences walls or shrubs at any side or back nor closer than 18 inches at the plumbing side A minimum clearance of 24 inches must be maintained at front of heater see Figure 14 IMPORTANT When locating the heater consider that high winds can roll over or deflect off adjacent buildings and walls Normally placing the heater at least three feet from any wall will minimize downdraft Unusually high pr...

Страница 17: ...exchanger or water connections will not result in damage to the area adjacent to the heater or the structure When such locations cannot be avoided it is recommended that a suitable drain pan with adequate drainage be installed under the heater The pan must not restrict air flow Installations in basements garages or underground structures where flammable liquids may be stored must have the heater e...

Страница 18: ...venience The plug must be plugged into an outdoor rated watertight GFCI protected receptacle rated for 10 amps minimum a constant power source is recommended If the heater must be hard wired you must remove the cord from the terminal block located inside the junction box before removing the cord and strain relief from the cabinet The heater may be hard wired with either 120 or 240 VAC to convert t...

Страница 19: ...ROUND WIRE GREEN HERE GROUND SCREW WITH PAINT CUTTING WASHER EXTERNAL BOND LUG CHASSIS SHEET METAL V1 TH V2 GRD N H GRN WHT BLUE WHT ORN ORN GRN WHT WHT WHT WHT WHT WHT ELECTRONIC 1 2 3 4 TRANSFORMER WIRING 115V CONN LINE 1 2 TIED LINE 3 4 TIED 230V CONN 2 3 TIED LINE 1 LINE 4 WHT RED WHT BLK BLK RED MiniMax 100 Millivolt Wiring Diagram Remote Wiring Hook up The MiniMax 100 may be connected to a t...

Страница 20: ...lace wires Defective pressure switch Replace Switch Defective gas controls Call serviceman On Off switch in OFF position Turn switch to ON Heater Short Cycling Rapid On and Off Operation Insufficient water flow Clean filter and pump strainer Defective wiring Repair or replace wiring Defective or stuck by pass valve Call serviceman Defective hi limit and or thermostat Call serviceman Heater Makes K...

Страница 21: ... Millivolt SIT 1 471436 Gas Valve Propane Millivolt SIT 1 471435 16 Thermostat MillivoltModels 1 072022 Thermostat Electronic Direct Spark Models 1 471431 17 On Off Switch spst 1 471128 18 Heat Shield Burner Tray 1 471070 19 Control Panel Assy 1 471078 20 DoorAssembly 1 471067 21 Control Bracket 1 471159 22 Ignition Control DSI 1 471091 23 Transformer 1 074033 24 Jacket Assembly 1 N A 25 Inspectio...

Страница 22: ...22 P N 471105 Rev F 1 22 04 EXPLODED VIEW 33 14 13a ...

Страница 23: ...23 Rev F 1 22 04 P N 471105 NOTES ...

Страница 24: ...24 P N 471105 Rev F 1 22 04 Pentair Pool Products 1620 Hawkins Ave Sanford NC 27330 919 774 4151 10951 West Los Angeles Ave Moorpark CA 93021 805 523 2400 SAVE THESE INSTRUCTIONS ...

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