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WATER CHEMISTRY

(Corrosive water voids all warranties)

For your health and the protection of your pool equipment, it is essential that your

water be chemically balanced. The following levels must be used as a guide for bal-

anced water.

Recommended Level(s)

Fiberglass Pools Fiberglass Spas

Other Pool & Spa

Types

Water Temp. (Deg. F)

68 to 88

89 to 104

68 to 104

pH

7.3 to 7.4

7.3 to 7.4

7.6 to 7.8

Total Alkalinity (PPM)

120 to 150

120 to 150

80 to 120

Calcium Hardness (PPM)

200 to 300

150 to 200

200 to 400

Salt (PPM)

4500 MAXIMUM

4500 MAXIMUM

4500 MAXIMUM

Free Chlorine (PPM)*

2 to 3

2 to 3

2 to 3

Total Dissolved Solids (PPM)

3000 MAXIMUM** 3000 MAXIMUM** 3000 MAXIMUM**

* Free Chlorine MUST NOT EXCEED 5 PPM!

•    Occasional chemical shock dosing of the pool or spa water should not damage the

heater providing the water is balanced.

•    Automatic chemical dosing devices and salt chlorinators are usually more efficient

in heated water, unless controlled, they can lead to excessive chlorine level 

which

can damage your heater, and which is not covered under warranty

.  A check

valve should be installed between the heater outlet and a chlorinator or other chem-

ical dosing device.

•    Further advice should be obtained from your pool or spa builder, accredited pool

shop, or chemical supplier for the correct levels for your water.

2

Rev. 29

reflects the following: 

Changes to:

Additions:

None

Deletions:

None

** In salt water chlorinated pools, the total TDS can be as high as 6000 ppm.

Summary of Contents for 336A

Page 1: ...your building Immediately call your gas supplier from a neighbor s phone Follow the gas sup plier s instructions If you cannot reach your gas supplier call the fire department Installation and servic...

Page 2: ...XIMUM 3000 MAXIMUM 3000 MAXIMUM Free Chlorine MUST NOT EXCEED 5 PPM Occasional chemical shock dosing of the pool or spa water should not damage the heater providing the water is balanced Automatic che...

Page 3: ...r Reversal Procedure 26 Electrical Wiring 26 Millivolt Models 26 Advanced Flame Technology AFT Models 27 Transformer Wiring 28 Wiring Diagram Millivolt Mechanical Therm 29 Wiring Diagram AFT Models At...

Page 4: ...is an easy task The upper front panel of the heater contains the control center that allows you to turn the heater On or Off and adjust the temperature settings for the pool or spa The temperature ran...

Page 5: ...P Read the safety information above 2 Set the thermostat on the lowest setting 3 Turn On Off switch to the Off position 4 Remove heater door panel 5 Push in gas control knob slightly and turn clockwis...

Page 6: ...ormation above 2 Set the thermostat to the lowest setting 3 Turn off all electrical power to the appliance 4 This appliance is equipped with an ignition device which automatically lights the pilot Do...

Page 7: ...anual gas control to the heater SECTION 2 CAUTION Elevated water temperature can be hazardous The U S Consumer Product Safety Commission has these guidelines 1 Spa water temperatures should never exce...

Page 8: ...re not moving water or your gauge is broken Try to get the pump to run at its normal flow rate CAUTION Combustion air must not be contaminat ed by corrosive chemical fumes which can damage the heater...

Page 9: ...l higher temperatures are reached Operating the heater for prolonged periods with pool water below 50 F can seriously damage the heater and is not cov ered by the warranty For cold climate areas pleas...

Page 10: ...the heater STANDARD UNIT POLYMER HEADERS ASME UNIT CAST IRON HEADERS 1 Pagoda top 1 Pagoda top 2 2 CPVC union with O rings 2 2 In Out flanges 2 3 Plastic pipe finish flange for gas line 3 1 1 2 flange...

Page 11: ...ol Heaters All heaters can be used either indoor or outdoors The appropriate top designated for each type of use is required If necessary the top can be changed at a later date to change from outdoor...

Page 12: ...INSTALLATIONS Top 30 Drafthood Back 6 Front Alcove Open Right Side 12 Water Side Vent 6 Left Side 6 Floor 0 Opposite Water Side OUTDOOR INSTALLATION Top Unobstructed Outdoor Stack Top 36 Stackless To...

Page 13: ...any building The top surface of the heater shall be at least 3 ft above any forced air inlet or intake ducts located within 10 ft horizontally For installations in Canada pool heaters shall not be in...

Page 14: ...eld Supplied Ea Pallet Anchor Bracket Use hole closest to unit 4 total 1 1 4 x 1 3 4 S S Tapcon Bolt Washer Field Supplied Ea Pallet Anchor Bracket Use hole closest to unit 4 total 2 x 6 x 1 8 Pallet...

Page 15: ...Heater must always be vented to the outside See Vent Piping section pg 18 19 for details Minimum allowable space is shown on the nameplate OUTDOOR STACK INDOOR STACK NOTE The outdoor and indoor stacks...

Page 16: ...8 3 4 2 249 Commercial ASME Copper or Cupro Nickel Heater Model BTUH Input 000 A Cabinet Width B Flue Dia C Indoor Drafthood D J Min Gas Conn Water Conn ASME Heater w Stackless Top Indoor Drafthood C...

Page 17: ...s for cast iron ASME headers P is for plastic polymer headers Suffix C is for copper tubing EXAMPLE P R407A EN C Plastic headers 407 model size AFT natural gas copper For altitudes above 5 000 ft cons...

Page 18: ...D VENTILATION AIR Indoor Units Only The heater must have both combustion and ventilation air Minimum requirements for net free air supply open ings are one opening that is 12 inches from the ceiling f...

Page 19: ...d of the heater gas controls and a manual shut off valve locat ed outside the heater jacket All gas piping should be tested after installation in accordance with local codes CAUTION The heater and its...

Page 20: ...ustment Robertshaw 7000 Heater Models 206 406 Honeywell VR8304 Heater Models 206 406 and 207 407 ELECTRONIC IGNITION GAS VALVES CONTINUED Gas Pressure Adjustment Robertshaw 7200 Heater Model 206 Rober...

Page 21: ...AFFLE Manufactured after 11 08 FLOW GPM PRESSURE DROP FT OF HEAD 206 207 266 267 336 337 406 407 20 4 0 25 4 0 4 6 30 4 0 5 2 35 4 0 5 8 5 2 40 4 6 5 8 5 2 5 2 50 4 6 6 3 6 9 6 9 60 4 6 6 9 6 9 6 9 70...

Page 22: ...ated scaling temper atures U G Plug Polymer Unitherm Governor Gasket POLYMER HEADERS STANDARD MODELS Before attaching the 2 inch unions to the inlet outlet header make sure the O rings are properly se...

Page 23: ...d outlet pipes at the heater Outlet pipes should be slightly warmer than inlet and comfort able to the touch If pipe is hot close bypass if cold open bypass PRESSURE RELIEF VALVE INSTALLATION To confo...

Page 24: ...at any water leaks will not damage the structure of adjacent area PVC pipe may be glued directly into header unions Standard models only CAUTION An additional source of heated water e g a solar system...

Page 25: ...sheets Clean off tube sheet area where the gasket seats Also clean off the header and the gasket Apply a non petrole um based lubricant to the gasket such as AquaLube Re attach the headers to the oppo...

Page 26: ...ansformer from its current location and relocate it on the far left side of the heater 8 Re route all high voltage wires and ground wires through the left jacket side of heater 9 Re install P6 connect...

Page 27: ...RIC HEATER 120V LOW NOx HEATER SUPPLY SIDE SUPPLY SIDE RETURN or NEUTRAL RETURN or NEUTRAL HEATER 4 WIRES HEATER 7 WIRES GROUND L1 L1 HOT RED RED RED BLACK BLACK BLACK BLACK HOT BLACK GREEN GREEN GREE...

Page 28: ...28 WIRING DIAGRAM MILLIVOLT MECHANICAL THERMOSTAT...

Page 29: ...29 WIRING DIAGRAM ATMOSPHERIC...

Page 30: ...30 WIRING DIAGRAM LO NOx...

Page 31: ...n Top Of Header HL1 High Limit HL2 High Limit Pressure Switch Temp Sensor Well Pilot Roll Out Switch Gas Valve Transformer Drain Plug Drain Plug Located in rear header Unitherm Governor Mounted On Top...

Page 32: ...knob stop adjustment ring illustrated below is adjustable by loosening the set screw rotating the knob stop ring to the desired location and re tightening the set screw SPA TEMPERATURE RANGE POOL TEMP...

Page 33: ...ault History To access the Service Menu and fault history press the MODE and UP buttons simultaneously for 3 to 5 LCD Display Temp Buttons Mode Button Program button ALTERNATING DISPLAYS DURING HEATIN...

Page 34: ...displaying Celsius as well as Fahrenheit temperatures The UP or DOWN buttons will select Fahrenheit or Celsius on the temperature display Choose the desired temperature scale Spa Max Temp Spa Set Poi...

Page 35: ...eplace board EEPROM Fault Memory fault reset set points replace board if fault does not clear Clock Fireman Sw Time clock fireman switch circuit is open Low Temp Lockout Water temperature below 36 F T...

Page 36: ...e circuit created by the remote wiring Typically a remote does not supply power to the heater it only provides a switching function to turn the heater On or Off If your remote is supplying its own vol...

Page 37: ...PA mode and set the temperature to the highest setting available on the control The actual setpoint will be con trolled by the remote control 4 Turn the mode button to OFF and remove power from the he...

Page 38: ...essary to adjust the pressure switch to compen sate for the no flow static head If it is necessary to adjust the water pressure switch utilize the following procedure WATER PRESSURE SWITCH ADJUSTMENT...

Page 39: ...reinstall HIGH LIMIT REMOVAL 1 Shut off main electrical power switch to heater 2 Remove inlet outlet inspection panel 3 Remove defective high limit and replace with a new high limit 4 Replace inspect...

Page 40: ...er straight up using caution not to damage refractory 8 Reverse above procedure to reinstall Make sure the insulation strips are properly replaced on top of the refractory retainer TUBE CLEANING PROCE...

Page 41: ...e made of the burners ELECTRICAL Be sure that electrical service to the heater has proper overload fuse or circuit breaker protection wire size and connections which comply with all applicable codes F...

Page 42: ...gas valve 2 Remove the pilot wire from the pilot assembly 3 Remove 2 screws that mount the pilot assembly to the burner tray 4 Pull the pilot assembly downwards and outwards 5 Reverse above procedure...

Page 43: ...ment replace Air starvation Refer to installation instructions Improper venting Follow recommended installation instructions Insects or debris clogging burner intake ports Clean burners Pilot outage o...

Page 44: ...ilot burner does not light Light pilot If pilot burner goes out when main burner lights or when gas valve knob is released If burner does not remain lit attach millivolt meter and read pilot output If...

Page 45: ...d pilot operator on gas control Check for 24 VAC across PV MV PV terminals on PC board If voltage is okay replace gas control if not replace PC board NOTE If PC board goes into lockout reset system Lo...

Page 46: ...P1 Check resistance value of the thermister Reference to chart below Replace thermister if not within 10 of values shown below If okay replace Circuit Board Temp Degrees F 40 50 60 70 80 90 100 106 Re...

Page 47: ...acement under standard company warranties must be properly tagged with a return parts tag completely filled in with the heater serial number model number etc and shipped to the Company freight prepaid...

Page 48: ...48 19 M 20 M 22 M 24 M 23 M 21 M 22 M ATMOSPHERIC HEATERS...

Page 49: ...49 16 M 17 M 19 M 21 M 20 M 18 M 19 M LO NOx HEATERS...

Page 50: ...50...

Page 51: ...045F 010046F Heat Exchange Assy Cupro Nickel Units manufactured prior to 7 2013 010356F 010357F 010358F 010359F Units manufactured From 7 2013 014926F 014927F 014928F 014929F 2 HP Inlet Outlet Header...

Page 52: ...52 ATMOSPHERIC HEATERS...

Page 53: ...53 ATMOSPHERIC HEATERS...

Page 54: ...54 LO NOx HEATERS...

Page 55: ...55 LO NOx HEATERS...

Page 56: ...www raypak com Raypak Inc 2151 Eastman Avenue Oxnard CA 93030 805 278 5300 Fax 805 278 5468 Litho in U S A FLIP THIS MANUAL FOR INSTRUCTIONS IN SPANISH...

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