Raypak 1287-1758, 2100-4001 - Manual

(a) Seal any unused openings in the common venting system. (b) Visually inspect the venting system for proper size and horizontal pitch and determine there isno blockage or restriction, leakage, corrosionand other deficiencies which could cause anunsafe condition. (c) Insofar as is practical, close ...

GAS PRESSURE REGULATOR The gas pressure regulator is preset and sealed at 4 in. WC for natural gas, and 11 in. WC for propane gas.Between the gas valve and the burners is a 1/8" pipe plug.The pressure at this point, taken with a manometer,should be about 3.7 in. WC natural gas and 10.5 in. WCpro...

When local codes permit the use of less than four feet high temperature piping or two elbows, provisionsshould be made to always shut the heater off a minimumof 15 minutes prior to pump shut down in order to carryaway residual heat and prevent damage to the lowtemperature piping. A fireman switch in...

9 MODELS 1287/1336 - 1758/1826 I n l e t / O u t l e tHeader 2-1/2" Inlet 2-1/2" Outlet 1-1/2" Slip Ball Valve 2" SlipBall Valve 3" Outlet Fig. #9270 Fig. #9200 Pump 3" Inlet 2 H.P. Pump Inlet/OutletHeader MODELS 2100-4001 FLOW RATES/WATER CONNECTIONS MODEL CONNECTION SIZE MI...

10 Raypak recommends the installation of an air bleed vent at a suitable location (usually the highest point) to removeair from the piping system. These units should be available at your local wholesale supplier. Raypak does not providethis item. CAUTION: Power to the heater should be interlocked wi...

Note: The drawings and instructions above show only one of several acceptable ways of installing thedry well into main system loop. The use of saddle clamps and “Weld O Lets” (shown in Fig. 10) areacceptable. Follow clamp manufacturer’s instructions. MOUNTING WELL INTO SYSTEM RETURN LOOP PIPE - FRON...

Models 2100 thru 4001 13 PIPING CONFIGURATIONS FOR RAYTHERM COMMERCIAL POOL HEATERS Fig # 9268 Fig # 9269 BLENDED WATER TEMPERATURE(THERMOMETER AT HEATER INLET) HEATER OUTLET TEMPERATURETHERMOMETER HEATER THERMOSTAT RECOMMENDED FIELD INSTALLEDISOLATION VALVES FOR SERVICE T I T o T c

15 HIGH & LOW GAS PRESSURE SWITCHES Pressure switches sense either high or low gas pressure and automatically shut down burners if abnor-mal pressures exsist. Standard on Models 3001-4001. PRESSURE SWITCH GAS MANIFOLD Fig. #8236 ELECTRICAL WIRING CAUTION: Label all wires prior to disconnection w...

TEMPERATURE CONTROL The pool water temperature is controlled by the pool thermostat. The heater water temperature high limit is controlled by the manual reset high limit. PRESSURE SWITCH The pressure switch, or heater actuator, ensures that the heater operates only when the filter pump is inoperatio...

ADJUSTMENT KNOB Fig. # 8069.1 PRESSURE SWITCH ADJUSTMENT RANGE HEAT EXCHANGER HEIGHT 5' Max 5' Max Fig. # 8152.0 NOTE: If heater is installed outside of the limits shown, a flow switch must be used in place of the pressureswitch when mounted and wired adjacent to the heater. TWO-SPEED PUMPS In some ...

AFTER START-UP Pilot System Checkout Procedure 1. Turn on power to the ignition systems and turn gas supply off. 2. Check ignition module as follows: a. Set the thermostat above pool water temperature to turn heater on. b. Watch for continuous spark at the pilot burner.c. Time the spark operation. T...

SERVICING PROCEDURES TUBE CLEANING PROCEDURE (TYPICAL) Establish a regular inspection schedule, the fre- quency depending on the local water condition andseverity of service. Do not let the tubes clog up solidly.Clean out deposits over 1/16" in thickness. Although the illustration shows the mech...

5. Remove heat exchanger corner brackets. 6. Remove combustion chamber clips at the fourcorners of the heat exchanger. 7. Lift heat exchanger straight up using cautionnot to damage refractory. HEAT EXCHANGER REASSEMBLY 1. Heat exchanger header O-rings should be replacedwith new ones. 2. Install inle...

CONTROL WELL REPLACEMENT Remove top, sensing bulb and clip. Collapse well tube at the open end and with a chisel, push through intothe header, and remove the well through header. Inserta new well and roll into place. If a roller is not available,solder the well in place with silver solder. IMMERSION...

MODELS 926-1223 UNITHERM GOVERNOR INLET/OUTLET HEADER OUTLET INLET Fig. #8224.0 GASKET UNITHERM GOVERNORWITH POWER ELEMENT MODELS 1287-1826 (Models prior to Jan. '95)DOUBLE EXTERNAL U.G. MODELS 2100-4001 (Models prior to Jan. '95)EXTERNAL U.G. To test operation of Unitherm Governor, place in hot wat...

SECTION 5 / TROUBLESHOOTING GUIDE IMPORTANT NOTICE These instructions are primarily intended for the use of qualified personnel specifically trained and experiencedin the installation of this type of heating equipment and related system components. Installation and servicepersonnel may be required b...

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SECTION 6 / REPLACEMENT PARTS LIST NOTE: To supply the correct part it is important that youstate the model number, serial number and type of gaswhen applicable. Any part returned for replacement under standard company warranties must be properly tagged withRAYPAK return parts tag, completely filled...

Raypak, Inc. , 2151 Eastman Avenue, Oxnard, CA 913030 (805) 278-5300 FAX (800) 872-9725 Raypak Canada LTD , 2805 Slough Street, Mississauga, Ontario, Canada L4T 1G2 (905) 677-7999 FAX (905) 677-8036 Litho in U.S.A. www.raypak.com