Operating Heater
Continued
Lighting with Piezo Ignitor
1. Disconnect ignitor cable from receiver and connect to Piezo Ignitor Tab (see Figure 18, page 17 and Wiring Diagram on page 24).
2. STOP! Read safety information on page 15,
3. Make sure equipment shutoff valve is fully open.
4. Turn 
to the OFF position.
5. Wait (5) minutes to clear any gas and then smell for gas around heater and near floor. If you smell gas, STOP! follow "B" on page 14.
6. ON/OFF switch in
7.
8. Push and hold down metal core fully with a pen while the pilot gas flows.
9. Press and release piezo ignitor button until pilot lights.
10. Continue holding down metal core for about 10 seconds and then release the metal core. Pilot should stay lit. If not, repeat steps one through 4, page 17.
11. Turn MAN-Knob to ON position - main gas flows.
12. Turn
to turn gas off
to appliance
Shutting Off Heater
Press OFF button on remote control to switch off main gas and pilot gas or manually turn
to the "O" OFF position.
Shutting Off Burner Only (pilot stays lit) Press to decrease the flame height and shut off main burner.
Inspecting Burners
Check pilot flame pattern and burner flame pat- terns often.
PILOT FLAME PATTERN
Figure 20 shows a correct pilot flame pattern. Figure 21 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. When the thermocouple cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown in Figure 21
•turn heater off (see To Turn Off Gas to Appli- ance, above or page 17)
•see Troubleshooting, page 20
Note: The pilot flame on natural gas units will have a slight curve, but flame should be blue and have no yellow or orange color.
Thermocouple
Figure 20 - Correct Pilot Flame Pattern
(Natural Gas Pilot Shown)
Thermocouple
Figure 21 - Incorrect Pilot Flame Pattern
(Natural Gas Pilot Shown)
18 | www.desatech.com |
