AERCO KC1000 Heater w/Mod-Box Controller - Manual (Page 33)

SAFETY DEVICE TESTING
28
10. Restore AC power to the unit.
11. Start the unit.
WARNING!
THIS IS A 120 VOLT AC COMBUSTION
SAFEGUARD SYSTEM. POWER MUST
BE REMOVED PRIOR TO PERFORMING
WIRE REMOVAL, OR OTHER TESTING
PROCEDURES THAT CAN RESULT IN
ELECTRICAL SHOCK.
Figure 5.7
Air/Fuel Valve Open Position Switch
Location
12. The unit should shutdown and display the
message SYSTEM FAULT PURGE
INTERLOCKS.
13. Disconnect AC power from the unit.
14. Reconnect wire #60 to the air/fuel valve
open position switch.
15. Disconnect wire #62 from the ignition
position switch. This is the switch closest to
the burner of the unit (See Fig. 5.7).
16. Restore AC power to the unit, and reset the
combustion safeguard.
17. Start the unit.
18. The unit should lockout and display the
message LOCKOUT START FLAME
19. Disconnect AC power from the unit
20. Reconnect wire #62 to the ignition position
switch
21. Replace the air/fuel valve cover.
22. Restore AC power to the unit
23. Set the unit to auto mode to resume normal
operation.
5.8 SAFETY PRESSURE RELIEF VALVE
TEST
Test the safety Pressure/Temperature Relief
Valve in accordance with ASME Boiler and
Pressure Vessel Code, Section VI.