Rheem Versa Spa Heaters Operating Instructions - Page 6

OWNER'S OPERATING INSTRUCTIONS 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: If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, personal injury or loss of life. WARNING: Should overheating occur or the gas supply fail to shut off, turn off the manual gas control to the appliance. Start-Up Procedures Before Start-Up Burners 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. 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 ventilation air. 4" MAX Water First thing, ensure that system is filled with water and have pump operating. Water must be flowing through the heater during operation. Fig. 2: Correct Main Burner Flame Pattern Fig. 1: Versa Heater Fig. 3: Millivolt Pilot Burner Flame A yellow or "floating" flame indicates restricted air openings or incorrect orifice size. Should this occur, shut the heater off and contact your installer or gas supplier. Water Pressure Switch A water pressure switch is provided in the heater to shut-off the burners in the event that water supply to the heater is interrupted. It is very important to verify that the switch electrically opens and shuts off the gas 6