7. FUNCTONS OF THE CONTROLLER
11-2 when there is a leak of electricity in the External control line.
- Operation : the boiler must be stopped unconditionally regardless of thermostat(CTR-6070) setting state.
(When boiler power OFF,only freeze and burst function will operat)
* If there is no room thermostat and you want to use an external control, the boiler will be operated
by earthing the thermostat wires.
12. TIME CHART
1) PRE PURGE TIME : 11sec±1sec
→ TIME for remove inside gas and safety by operationg igniting trans.
2) PRE IGNITION TIME : 7sec±1sec
→ Time for improving ignition property before injection the fuel
3) POST IGNITION TIME : 7sec±1sec
→ time for stable ignition from going out the flame, when initial igniting
4) POST PURGE TIME : 6sec±1sec
→ Time for blow inside gas to outside for safety, even the burner turn off
* Normal operation
7-1 ROOM CONTROL PANEL
FLAME
DETECTIO
N
TIME(SEC.)
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Содержание KRH-35B
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