Rheem Versa Heaters Operating Instructions - Page 20

Post Start-Up Inspection 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 to the appliance. 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. Igniter Minimum Spark Gap is 0.15" - 0.18" 3/8" Nominally from burner surface Fig. 24: DSI Igniter Location 4" MAX Cold Weather Operation Moderate Climate Fig. 22: Correct Main Burner Flame Pattern Heater operation can continue during short-term cold spells. When temperatures are between 0° and 32°F, flow (continuous pump operation) must be maintained. A yellow or "floating" flame indicates restricted air openings or incorrect orifice size. Should this occur, shut the heater off and contact the installer or gas supplier. Head of Pilot must be above Burner Deck. CAUTION: Do not use the heater to maintain water temperatures just above freezing or for freeze protection. When heater is used during freezing weather, care must be taken to avoid freeze-ups. Continuous pump operation is a must. Additional protection may be required. The heater is not warranted against freeze-ups. Cold Climate Prolonged operation with water temperatures below 50°F is not recommended. When starting the heater with water temperatures below 50°F, operate the heater continuously until higher temperatures are reached. Operating the heater for prolonged periods with pool water below 50°F can seriously damage the heater, and is not covered by the warranty. Fig. 23: Millivolt Pilot Burner Flame For cold climate areas, please follow the winterizing procedures listed in the next section. 20