Space Ray RSCA Series - Manual (Page 16)

Form #43219000
Sept 2012
14) SEQUENCE OF OPERATION
The chart below shows the sequence of operation for the normal operating cycle of the heater equipped
with direct spark ignition system when connected to a permanent 120V power supply and the heater is
turned on and off by a remote 120V thermostat. (See Section 11)
If the flame is not sensed during sequence T2, then the burner will automatically go into safety lockout.
15) CLEANING AND ANNUAL MAINTENANCE
This heater must be cleaned and serviced at least once before the start of each heating season or at any
time the infrared emitter shows signs of collecting any foreign material on its surface or in the ports, or when
anything obstructs the venturi or the screen. Maximum heating efficiency and clean combustion will be
maintained by keeping the emitter and burner clean. To clean the heater, follow these instructions:
1) Turn off all gas supply to the heater.
2) Clean the reflector.
3) Remove he main burner orifice and the pilot orifice (if so equipped) and clean them thoroughly.
4) Check the venturi opening to be sure it is clean. If there is any evidence of dirt accumulation in the
venturi, remove it before cleaning to avoid getting the dirt inside the heater.
5) Inspect the emitter surface to be sure it is clean. Ignite the heater and observe the color of the emitter
face. If there are pronounced dark areas on the face, it probably indicated an accumulation of dirt on the
inside surface and the following steps must be taken to clean that surface:
15
DO NOT DIRECT AN AIR HOSE AT THE CERAMIC EMITTER SURFACE
AS IT MIGHT DAMAGE THE CERAMIC OR DISLODGE THE HIGH TEMPERATURE GASKET MATERIAL.