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P/N S794 Rev. H 8-11-14

MAX-E-THERM

®

Pool and Spa Heater Installation and User’s Guide

1 1

120/240 VAC NATURAL GAS/LP GAS

MODELS

Natural

Propane

HD

200K BTU/HR

SR200NA

SR200LP

SR200HD

250K BTU/HR

(ASME)

460767

460768

333K BTU/HR

SR333NA

SR333LP

SR333HD

400K BTU/HR

SR400NA

SR400LP

SR400HD

400K BTU/HR

(ASME)

460763

460764

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.

DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity
of this or other appliances.

For Your
Safety

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.

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.

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.

1620 Hawkins Ave., Sanford, NC 27330

•

(800) 831-7133 or (919) 566-8000

10951 W. Los Angeles Ave., Moorpark, CA 93021

•

(800) 831-7133 or (805) 553-5000

Pentair Water Pool and Spa, Inc.

INSTALLATION AND USER’S GUIDE

STA-RITE

®

MAX-E-THERM

®

POOL AND SPA HEATER

OWNER:

Retain For

Future

Reference

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»

Summary of Contents for 460763

Page 1: ...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 instruction...

Page 2: ...mer Service and Technical Support If you have questions about ordering Pentair Aquatic Systems replacement parts and pool products please call Phone 800 831 7133 Fax 800 284 4151 8 A M to 4 30 P M Eas...

Page 3: ...tdoor Shelter for Canada 20 Vertical Venting Negative Pressure Direct Air Intake with 3 inch PVC Pipe indoor Installation 20 22 Horizontal or Vertical Venting Positive Pressure 23 Connecting Special G...

Page 4: ...r installation practices IMPORTANT NOTICES For the installer and operator of the Max E Therm pool and spa heater The manufacturer s warranty may be void if for any reason the heater is improperly inst...

Page 5: ...rculatory problems diabetes or blood pressure problems should obtain their physician s advice before using spas or hot tubs 6 Persons taking medication which induce drowsiness such as tranquilizers an...

Page 6: ...jurisdictions require that installers be licensed Check with your local building authority about contractor licensing requirements Improperinstallationand oroperationcouldcreatecarbonmonoxidegasandfl...

Page 7: ...as or vice versa Only qualified service technicians should attempt to convert heater from one fuel to the other Do not attempt to alter the rated input or type of gas by changing the orifice If it is...

Page 8: ...Control Valve on this heater differs from most appliance gas controls If it must be replaced for safety reasons replace it only with an identical gas control The access door panels must be in place to...

Page 9: ...t switch HLS which opens if the heat exchanger outlet temperature goes above 135 F 57 C and the air flow switch AFS which senses the pressure drop across the air metering orifice the automatic gas shu...

Page 10: ...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 Fi...

Page 11: ...back siphoning Back siphoning is most likely to occur when the pump stops creating a pressure suction differential Do NOT sanitize the pool by putting chlorine tablets or sticks into the skimmer s Whe...

Page 12: ...ided Heat sinks are not required The low thermal mass of the heater will prevent overheating of the piping connected to the pump even if the heater shuts down unexpectedly Occasionally a two speed pum...

Page 13: ...operation A minimum flowing or dynamic inlet pressure while the heater is running of 4 10 2cm wc is required to maintain input rating with no more than a 2 pressure drop between static and dynamic The...

Page 14: ...I T C E N N O C E N I L S A G R O F G N I Z I S E P I P H T G N E L E P I P T N E L A V I U Q E M U M I X A M t F t o o F c i b u C r e p U T B 0 0 0 1 t a s a G l a r u t a N t o o F c i b u C r e p...

Page 15: ...s valve this must be done by only by a qualified service agency These instructions are for the use of qualified service technicians only This appliance is equipped with an unconventional gas control v...

Page 16: ...he weather has moderated In areas subject to hurricanes or very high winds purchase the Bolt Down Bracket Kit P N 42001 0085S see Figure 8 HEATER CLEARANCES OUTDOOR IMPORTANT In an outdoor installatio...

Page 17: ...ny building wall openings included but not limited to vented eaves doors windows gravity air inlet 4 ft below 4 ft horizontally Figure 11 Must be at least 3 ft 9M above any forced air inlet located wi...

Page 18: ...The total length of the horizontal run must not exceed the length that is listed in table 11 on page 23 HEATER CLEARANCES General Requirements INDOOR INSTALLATION U S OR OUTDOOR SHELTER CANADA The fo...

Page 19: ...1 n i q s 0 0 2 m c q s 1 9 2 1 n i q s 0 5 m c q s 3 2 3 n i q s 0 5 m c q s 3 2 3 3 3 3 n i q s 3 3 3 m c q s 9 4 1 2 n i q s 3 3 3 m c q s 9 4 1 2 n i q s 4 8 m c q s 2 4 5 n i q s 4 8 m c q s 2 4...

Page 20: ...less than 1 2 the total vent height the vertical distance from the flue collar to the vent termination and which have three or less elbows in the system For venting systems which do not meet these con...

Page 21: ...ent manufacturers ARE NOT interchangeable Mixing parts from more than one manufacturer may cause leaks or damage to vent When assembling a vent pick one manufacturer and be sure that all vent parts co...

Page 22: ...t run the heater vent into a common vent with any other appliance WARNING Fire Hazard Do not vent the heater directly into a masonry chimney Installation into a masonry chimney must use a chimney line...

Page 23: ...must be maintained in accordance with type of vent pipe employed in the absence of a clearance recommendation by the vent pipe manufacturer the requirements of the Uniform Mechanical Code should be me...

Page 24: ...sary without putting a strain on the heater or vent body It is recommended to slope the horizontal pipe runs up from the heater at least 1 4 per foot 2cm M Install Approved condensate drains at low po...

Page 25: ...The terminal must be located Canada See Figure 18 at least 10 feet 3 3M from any opening into a building at least 12 3M above finished grade or the normally expected snow accumulation level whichever...

Page 26: ...NFPA 58 latest edition Consult local codes and fire protection authorities about specific installation restrictions The heater is design certified by CSA International for installation on combustible...

Page 27: ...w spots Check that vent is supported at elbows tees and horizontal and vertical runs according to manufacturer s instructions and code requirements Check that vent supports and wall and ceiling penetr...

Page 28: ...Electrical Code or the Canadian Electrical Code as applicable Abonding lug is provided on the outside of the panel under the vent for this purpose 3 Electrical power circuits to the pool heater must...

Page 29: ...nnect a 3 Wire Control Connect wires between the control board terminals on the heater and the external relays as shown in Figure 26 Use at least 2 relays per heater to allow for an OFF setting on eac...

Page 30: ...CTION Spa Line Common Line Pool Line IGNITION CONTROL MODULE DIAGNOSTIC INDICATOR F1 F2 24 VAC S1 240 S1 120 L1 L1 L2 BM FL F1 L2 S2 TH IND VALGND GND GND BLOWER Line 2 120 VAC IGNITER TRANS Line 1 Gr...

Page 31: ...ER 24 VAC 24 VAC 24V OPERATING CONTROL 24 VAC LOGIC TH IND AIR FLOW SWITCH HI LIMIT SWITCH WATER PRESSURE SWITCH COM NO AGS SWITCH VAL GAS VALVE THERMISTOR SENSOR STACK FLUE SENSOR NOTES 1 AND TH L1 L...

Page 32: ...all 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 C Use only your hand to turn the gas control on or o...

Page 33: ...ot fire See OPERATING the CONTROL PANEL 14 The blower should come on immediately and after about 20 seconds the burner should fire When operating for the first time the burner may not fire on the firs...

Page 34: ...water level reset the switch so that it is open when the pump is off and closed when the pump is running Turn the star wheel on the switch clockwise to raise setting heater below the pool and counterc...

Page 35: ...indicates that the pool water temperature is governing operation of the heater The SPA ON light indicates that the spa water temperature is governing operation of the heater The HEATING light comes o...

Page 36: ...panel board dome Locate the yellow button on the corner of the control board 4 Push the Max Temp Set Point button on the back of the control board see Figure 36 The following sequence should happen A...

Page 37: ...ll not fire or no red LED s come on replace Control Board YES Is green POOL or SPA LED on Is red SERVICE SYSTEM LED on Is red SERVICE HEATER LED on Turn off power to heater for about 5 seconds and tur...

Page 38: ...ter Check for 24 VAC at sec ondary of Transformer Check for Line Voltage at Transformer primary pins White connects to Pin 3 on Transformer Black to Pin 2 Orange to Pin 1 240V check Pin1 to Pin 3 120V...

Page 39: ...set above minimum flow requirement Model Flow 200 20 gal min 76 LPM 333 30 gal min 114 LPM 400 40 gal min 151 LPM Is red SERVICE HEATER LED on YES YES NO YES NO NO Is red SERVICE SYSTEM LED on Verify...

Page 40: ...about 24 seconds after call for heat SEE NOTE 2 Turn off power to heater for 5 seconds and turn back on Make sure tempera ture setting is above water temperature Wait one minute Does heater fire and s...

Page 41: ...CM is good your meter will read some voltage between 0 and 240 VAC Exactly what reading you get will depend on the meter but with a good ICM the reading won t be 0 VAC or 240 VAC but somewhere in betw...

Page 42: ...d or punctured Replace Air Flow Switch AFS If problem persists replace Blower Replace Blower Verify correct connection of wiring between 24 VAC and IND terminals on Ignition Control Module and Control...

Page 43: ...ohms open circuit 0 shorted Does sensor check OK Clean tighten pins as needed Reset power to Heater and retry Heater should fire NOT OK NO NO NO NO NO S S Replace Stack Flue Sensor Correct Fuel Suppl...

Page 44: ...rs Flame current is not Check for wet or damaged igniter with normal but flame does being sensed low resistance to ground Replacewith not stay lit new igniter Verify burner flameholder is properly gro...

Page 45: ...maintenance or adjustment by the user Call a qualified service technician if you suspect that the burner may require maintenance PRESSURE RELIEF VALVE NOT FACTORY INSTALLED Some U S local codes may re...

Page 46: ...ters in freezing climates shut the heater down and drain it for winter as follows see Figure 38 1 Turn off electrical supply to the heater and pump 2 Close main gas control valve and manual gas valve...

Page 47: ...Valve P N R172288 between the heater and the chlorinator to prevent concentrated chemicals from back siphoning into the heater Back siphoning is most likely to occur when the pump stops creating a pre...

Page 48: ...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 RULE Chemicals that are acid lower pH Chemicals that are alkalin...

Page 49: ...ir dealer If your dealer cannot supply you call Customer Support at 1 800 831 7133 4 1 3 4 5 6 8 10 9 2 7 12 1 For complete Electrical System parts breakdown Key Nos 1 through 4 See Page 53 For comple...

Page 50: ...g Control Assy Combustion Chamber Cover Assy w Vent Cover Vent Elbow Enclosure Kit Jacket Covers Lower Enclosure Enclosure Kit Jacket Covers Electrical Control Box w Index Plate Tube Sheet Coil Assy H...

Page 51: ...Assembly 12 Flameholder Combustion Chamber Gasket 13 Flameholder Insulation Cap Flameholder Insert 15 Condensate Evaporator Plate 16 One Piece Metal Chamber Combustion Chamber Assembly 42001 0001S 420...

Page 52: ...18 19 and Spring Clip 77707 0010 77707 0010 77707 0010 16 Thermal Regulator Includes Spring Clip 38000 0007S 38000 0007S 38000 0007S 17 Thermal Regulator Spring 1 1 1 18 Thermal Regulator Cap O Ring...

Page 53: ...2001 0107S 120 240 Volt Plug Kit 42001 0061S 42001 0096S 42002 0007S 15 Control Board Kit NA LP Series 1 42001 0104S 1 1 1 1 42001 0105S 16 Junction Box Cover Kit 1 77707 0022 Control Board Enclosure...

Page 54: ...54 MAX E THERM Pool and Spa Heater Installation and User s Guide P N S794 Rev H 8 11 14 N TES...

Page 55: ...55 P N S794 Rev H 8 11 14 MAX E THERM Pool and Spa Heater Installation and User s Guide N TES...

Page 56: ...s and or other countries Saf T Vent is a registered trademark of Selkirk Corporation Unless expressly noted names and brands of third parties that may be used in this document are not used to indicate...

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