71
1.4 Sequence of Operation
Operational State
User Interface Display
Explanation
Boiler operates in standby mode
until demand for Central Heat (CH)
or Domestic Hot Water (DHW) is
detected.
CH or DHW pump is turned on based
on type of heating demand.
(CH call is illustrated)
Control Module compares supply
Temperature to set point. Boiler
proceeds to ignition if supply
temperature is less than set point.
Combustion Air Blower speed
modulates to pre-purge setting for 15
seconds.
Sparking initiated sequence.
Heat
Demand?
DHW CH
Pump on
Supply
Temperature
<Setpoint?
15 Second
Prepurge
Ignition
Sparking
No
Yes
No
Yes
After 2 seconds
APPENDIX A - CONTROL MODULE
P/N# 2400010616, Rev. E [07/2015]
Summary of Contents for Olsen OLSSV-050
Page 50: ...50 13 TROUBLE SHOOTING P N 2400010616 Rev E 07 2015...
Page 52: ...52 13 TROUBLE SHOOTING P N 2400010616 Rev E 07 2015...
Page 64: ...64 14 1 Connection Diagram 050 075 100 MBH 14 WIRING DIAGRAM P N 2400010616 Rev E 07 2015...
Page 66: ...66 14 3 Connection Diagram 150 200 MBH 14 WIRING DIAGRAM P N 2400010616 Rev E 07 2015...
