INSTALLATION AND OPERATING INSTRUCTIONS CATALOG NO. 6000.50S Effective: 02-01-05 Replaces: 04-01-04 VERSA SWIMMING POOL and SPA HEATER Model 155C WARNING: If the information in these instructions are not followed exactly, a fire or explosion may result causing property damage, personal injury or death. — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. — WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance.
CONTENTS 4 PART ONE - Owner's Operating Instructions 4 4 5 7 SECTION 1 / START-UP PROCEDURES Before Start-Up Lighting Instructions & Shut-Off Procedures (Manually Lighted Pilot MV) Operating Instructions & Shut-Off Procedures (Automatically Lighted Pilots IID) After Start-Up 7 SECTION 2 / CAUTION 8 8 9 9 SECTION 3 / MAINTENANCE & CARE PROCEDURES Pool & Spa Water Chemistry Cold Weather Operation Winterizing The Pool And Spa Heater 6 10 PART TWO - INSTALLATION/SERVICE INSTRUCTIONS 10 SECTION 1 /
PART ONE - OWNER'S OPERATING INSTRUCTIONS 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. SECTION 1 / START-UP PROCEDURES BEFORE START-UP BURNERS WATER Clean main burners and air louvers of dust, lint and debris. Keep heater area clear and free from combustibles, flammable liquids and chemicals. Do not obstruct the flow of combustion and ventilating air.
CAUTION: Propane gas is heavier than air and will settle on the ground. Since propane can accumulate in confined areas, extra care should be exercised when lighting propane heaters. LIGHTING INSTRUCTIONS AND SHUT-OFF PROCEDURES MANUALLY LIGHTED PILOTS MILLIVOLT SYSTEM A. This appliance has a pilot that must be lighted by hand. When lighting the pilot, follow these instructions exactly. *If you cannot reach your gas supplier, call the fire department. C.
CAUTION: Propane gas is heavier than air and will settle on the ground. Since propane can accumulate in confined areas, extra care should be exercised when lighting propane heaters. OPERATING INSTRUCTIONS AND SHUT-OFF PROCEDURES AUTOMATICALLY LIGHTED PILOTS ELECTRONIC IGNITION SYSTEMS A. This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the pilot by hand. *If you cannot reach your gas supplier, call the fire department. B.
AFTER START-UP Feel the inlet and outlet pipes. Outlet pipe should be only slightly warmer than the inlet. It should not be hot. WARNING: Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the appliance. Pressure Switch Location VISUAL INSPECTION With the heater on, remove the door and make a visual check of the pilot and burner. The flame should be blue with a well-defined pattern. Fig. # 8110.
SECTION 3 / MAINTENANCE AND CARE PROCEDURES 4. Your pump strainer basket may be full. If so remove debris. To be followed one month after start-up and then semi-annually. 5. Your filter may be dirty. If so, backwash or clean filter. (To tell if your filter is dirty, the gauge pressure will be higher than usual). 1. Inspect top of heater and draft hood for soot, (a sticky black substance around finned tubes and "V" baffles), and open flue gas passageways. 6. The pump may have lost it's prime.
COLD WEATHER OPERATION 3. Disconnect compression fittings from the pressure switch and return header that connects to the 1/4" copper tube and allow the tube to drain. MODERATE CLIMATE: Heater operation can continue during short term cold spells. When temperatures are below freezing flow, (continuous pump operation) must be maintained. CAUTION: Do not use the heater to maintain water temperatures just above freezing or for freeze protection.
PART 2 - INSTALLATION / SERVICE INSTRUCTIONS SECTION 1 / RECEIVING EQUIPMENT SECTION 3 / INSTALLATION INSTRUCTIONS On receipt of your equipment it is suggested that you visually check for external damage to the carton. If the carton is damaged, a note should be made on the Bill of Lading when signing for equipment. Remove the heater from the carton and if it is damaged, report the damage to the carrier immediately. On occasion, we ship some items loose.
CLEARANCES WARNING: The heater shall not be located in an area where water sprinklers, or other devices, may cause water to spray through the cabinet louvers and into the heater. This could cause heavy internal rusting or damage some electrical components, and this would void the warranty. ALL HEATERS For clearances from combustible surfaces, see the following chart.
Heaters must not be installed under an overhang of less than three (3) feet from the top of heater. Three (3) sides must be open in the area under the overhang. Roof water drainage must be diverted away from the heaters installed under overhangs with the use of gutters: The point from where the flue products exit the heater must be a minimum of four (4) feet below, four (4) feet horizontally from or one (1) foot above any door, window or gravity inlet to a building.
INDOOR HEATERS The design is also certified for indoor installation when equipped with the approved draft hood. Locate heater as close as practical to a chimney or gas vent. Heater must always be vented to the outside. See Vent Piping Section for venting details. Minimum allowable space is shown on the nameplate. INDOOR DRAFT HOOD Fig. # 9305 COMBUSTION AIR (INDOOR UNITS ONLY) AIR FOR COMBUSTION AND VENTILATION (Indoor Units Only) The heater must have both combustion and ventilation air.
and B149.2) As much as possible avoid long horizontal runs of vent pipe and too many elbows. If installation requires horizontal non-vertical runs, the vent pipe must have a minimum of 1/4 inch per foot rise and should be supported at not more than five foot intervals. Plumbers tape, criss-crossed, will serve to space both horizontal and vertical piping.
GAS SUPPLY CONNECTIONS Gas piping must have a sediment trap ahead of the heater gas controls, and a manual shut-off valve located outside the heater jacket. All gas piping should be tested after installation in accordance with local codes. Fig. # 8149.1 ROBERTSHAW VALVE Fig. # 8090.1 CAUTION: The heater and its manual shut off valve must be disconnected from the gas supply during any pressure testing of that system at test pressures in excess of 1/2 psig (3.45 KPA).
PLUMBING FOR WATER CONNECTIONS LOCATION The VERSA heater requires water flow and positive pressure to fire and operate properly. It must therefore be installed downstream of the discharge side of the filter pump. A typical installation is plumbed as follows: FLOW RATES MIN GPM 20 MAX GPM 115* *When flow rates exceed 115 GPM an external auxiliary bypass valve is required. See external auxiliary bypass valve section for details. 1.
UNITHERM GOVERNOR OPERATION From Heater The patented Unitherm Governor is a thermostatic mixing valve specifically designed to maintain constant heater internal temperature between 105°-115°F despite continually changing flow rates from the filter and changing pool temperatures. This narrow range is needed to prevent damaging condensation on the burners which will occur if the heater runs for any length of time below 100°F.
NOTE: IID PROPANE UNITS ONLY: Heater is equipped with an electronic ignition device with a 100% safety lockout feature. If the heater fails to start or lockout, reset the ignition device by interrupting the power to the heater for 60 seconds. NOTE: To avoid water damage or scalding due to valve operation, drain pipe must be connected to valve outlet and run to a safe place of discharge.
For 120 V input power to the unit, connect the black wire to the “L1” or hot leg of the power supply. Connect the white wire to the “L2” or neutral leg of the power supply. Attach the wire nut to the red wire. There should be no connection to the red wire for 120V operation. WIRING DIAGRAM KEY Fig. #9240 For 240 V input power to the unit, connect the black wire to the “L1” or hot leg of the power supply. Connect the red wire to the “L2” or second hot leg of the power supply.
WIRING DIAGRAM MILLIVOLT UNITS * *If required by Local Code, install at this location. Fig.
WIRING DIAGRAM 152148 Model 155 IID BL BL BL 21
SECTION 4 / SERVICING INSTRUCTIONS GENERAL LOCATION OF CONTROLS VIEW OF HEATER FROM FRONT VIEW OF HEATER FROM BACK HIGH LIMITS SOLID STATE THERMOSTAT CONTROL UNITHERM GOVERNOR IGNITION CONTROL PRESSURE SWITCH DRAIN VALVE GAS VALVE PILOT THERMAL FUSE Fig. # 8110.1 CONTROL PANEL REMOVAL CONTROLS / ADJUSTMENTS / REPLACEMENTS 1. Remove lower door. 2. Remove (2) screws from bottom flange of control panel. 3. Slide down control panel to clear jacket top panel. 4.
PRESSURE SWITCH The pressure switch, or heater actuator, insures that the heater operates only when the filter pump is in operation. It is factory set at 1.75 PSI for deck level installations. When the heater is located below the level of the spa or pool, it may be necessary to reset the pressure switch to compensate for the no-flow static head.
PILOT SAFETY (Millivolt System) 3. Lift burners from slotted spacers and slide from orifices. Clean with a wire brush. 4. Orifices usually do not need to be replaced. To clean, run either copper wire or wood toothpick through orifice. Do not enlarge hole. To remove orifice, use a socket wrench and remove from manifold. DO NOT overtighten when reinstalling.
HEAT EXCHANGER REMOVAL GASKET U.G. 1. Shut water, gas and electricity off, close valves and relieve pressure, remove relief valve. Remove side inspection panels. 2. Remove top holding screws. 3. Remove draft diverter, lift and remove top and flue collector on stack-type models. Remove inspection panels. 4. Loosen bolts and disconnect flange nuts on inlet/ outlet header, loosen union(s) at gas pipe and slide boiler away from piping until studs clear the header. 5.
TUBE REPLACEMENT PROCEDURE DESOOTING PROCEDURE Tube replacement may be effected without rolling, as a temporary means of repair, providing there are two or more tubes rolled in to act as stays on the left or right sides. The "O" rings should provide a seal up to 125 PSI working pressure. Use 3/8" heavy duty reversible drill motor or larger to power the tube roller. If a reversible drill is not available, after rolling the tube in, remove the drill motor and wrench out the roller.
SECTION 5 / TROUBLE SHOOTING GUIDE IMPORTANT NOTICE These instructions are primarily intended for the use of qualified personnel specifically trained and experienced in the installation of this type of heating equipment and related system components. Installation and service personnel may be required by some states to be licensed. Persons not qualified shall not attempt to install this equipment nor attempt repairs according to these instructions.
Leaking at well. Overacid.................................. Replace well and maintain water chemistry properly. Replace heat exchanger and maintain chemistry properly. Leaking at heat exchanger. Overacid.................................. Gasket brittle and leaking (overheated). Heater running after pump Shuts off................................... Refractory damage..................... Sooted heater............................ See pressure switch adjustment. Replace refractory.
ELECTRICAL (ELECTRONIC IGNITION IID) Intermittent Pilot System TROUBLESHOOTING HONEYWELL S8600 START TURN GAS SUPPLY OFF.
ELECTRICAL (SOLID STATE THERMOSTAT IID) If the pool/spa/hot tub water is too cold, troubleshoot the system as follows: Check voltage at 24 V terminals. VOLTAGE BETWEEN 21.5-28.5 V. Set control to max. temperature. After 2-3 cycles, check water temperature. VOLTAGE OUTSIDE RANGE 21.5-28.5 V. Check transformer, 120 V supply, correct as necessary TEMPERATURE BELOW 105°F Disconnect sensor leads from circuit board. Measure sensor resistance with ohmmeter. TEMPERATURE 105-106° F. Control ok.
SECTION 6/REPLACEMENT PARTS LIST NOTE: To supply the correct part it is important that you state the model number, serial number and type of gas when applicable. Any part returned for replacement under standard company warranties must be properly tagged with return parts tag, completely filled in with the heater serial number, model number, etc., and shipped to the Company freight prepaid.
