Operating instructions

50
Start-Up Procedures
Test Mode Function
TO TEMPORARILY PLACE THE BURN-
ER INTO HIGH FIRE TEST MODE: press
and hold both the “
” and “+” button simul-
taneously once until operating display shows
“h” for CH high fire or twice until the operat-
ing display shows “H” for DHW high fire.
While in the test mode:
- high limit will function
- appliance CH circulator will function
- the test mode will time out in approxi-
mately 10 minutes
TO TEMPORARILY PLACE THE BURN-
ER INTO LOW FIRE TEST MODE: press
and hold both the “
” and “ ” button simul-
taneously until operating display shows “L”.
Flame Current
While in high fire or low fire test modes the
flame current (µA) can be checked at the con-
trol by pressing and holding the “ ” DHW
button.
TO DEACTIVATE THE HIGH OR LOW
FIRE TEST MODE: press and hold both the
“+” and “-” button simultaneously.
Control Software Version
To view the control sofware version cycle the
incoming power off then on to the CHAL-
LENGER at the wall switch.