Hayward H150FDN All models English - Page 27

SECTION 5. CONSUMER OPERATION & MAINTENANCE PROCEDURES 1. Periodically check the venting system on outdoor heaters. The heater's venting areas must never be obstructed in any way and minimum clearances must be observed to prevent restriction of combustion and ventilation air. Remember shrubs grow and in time may obstruct a heater's venting areas. 2. Check the venting on indoor heaters for looseness and possible leaks. Keep all openings for combustion and ventilation air clear and unobstructed. 3. Keep the entire pool heater area clean and free of all debris, combustible materials, gasoline and other flammable vapors and liquids. Remove any leaves or paper from around the heater. 4. Do not store chlorine, other pool chemicals, or other corrosives in the vicinity of the heater. 5. If heater is operating on Propane gas, Propane tank must not fall below 30% full or damage to the heater may occur. Hayward will not be responsible for heaters that soot up due to improper gas level in tank resulting in inadequate gas volume. 6. If another appliance is added to the gas line at a later date, consult local gas company to be sure the gas line will have the capacity to supply both units at full capacity at the same time. 7. Do not use the heater if any part has been under water. Contact a qualified service technician to inspect the entire heater and replace any part of the control system or gas valve that was under water. If heater has been totally submerged in water, replace the entire heater. 8. An inspection program is a good preventative maintenance measure. Keep this manual in a safe place for future reference and also for a service technician when inspecting or servicing heater. Additional inspection procedures to be performed by a qualified service technician are covered in Section VI. of this manual. Winterization: In moderate climate, the heater can continue to operate during short term cold spells. Do not use the heater to maintain the water temperature just above freezing or for freeze protection. Care must be taken to avoid freeze-ups in the heater. When it is used during freezing weather, the pump must run continuously. The heater is not warranted against freeze-ups. In regions where freezing temperatures are encountered, all water must be drained from the heater when out of service, to prevent damage to the heater and piping. Draining heat exchanger is recommended as part of the season's shut-down procedures. A HEATER DAMAGED BY FREEZING IS NOT COVERED UNDER THE MANUFACTURER'S WARRANTY. Opening drain valve: (see Figure 42.) (Above Pool Installations Only) 1. Turn heater thermostat(s) down to minimum setting. Set sys- tem switch to "OFF" position. Turn electricity off if heater has electronic ignition. 2. Turn heater gas valve to "OFF" position. 3. Turn manual gas valve outside of heater to off position. 4. Be sure circulating pump is off. 5. Open drain valve on front header and allow all water to drain from heater. 6. Leave drain valve open until spring startup. FRONT HEADER DRAIN VALVE Figure 42: Drain Valve Location Spring start-up: 1. Inspect and clean heater, being sure heater is free of leaves and debris prior to startup. 2. B e sure inlet and outlet piping are properly attached to the unit and the drain valve is closed. 3. T urn filtration system pump on and allow system to run long enough to purge all air from the lines. 4. T urn manual gas valve outside of heater to on position. 5. M ILLIVOLT HEATERS: Follow heater lighting instructions for lighting pilot and turn heater gas valve to "ON" position. ELECTRONIC IGNITION HEATERS: Turn electricity on, follow heater operating instructions and turn gas valve to the "ON" position. 6. S et system switch to "ON" for single thermostat heaters or to "POOL" or "SPA" position for dual thermostat heaters and turn thermostat(s) to desired temperature setting. Keep water at a safe temperature. 7. If operating difficulties are encountered, contact a qualified service company for assistance. 25