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SECTION 11: COMMISSIONING
25
Figure 10: Automatic Burner Control Box Sequence
Burner sequence for Honeywell S4563 or S4565C
Flame Signal
Start Gas Valve
Ignition Spark
Supply 230 V
CLOSE
DOWNRUNSTART
ts**
Signals Output By Control
Flue Fan
Pressure Switch
P
C
NO
NC
30 Sec. Purge*
*Purge time begins at pressure switch change over.
**ts=Safety time (S4563C=3 seconds [alternate 5 seconds]; S4565C=5 seconds)
Required Incoming Signals
If at any stage the flame fails, the control will go to "lockout". The red light will illuminate and the
control will need to be manually reset before any further start attempt can be made.
Figure 11: Gas Valve for Heater (Models 22 - 60)
Regulator
(Under Cover)
Inlet Pressure
Gas Inlet
Ignition Control
(Plugs into Gas Valve)
12 Cable Connector
Outlet Pressure
Fixing Screw
Ignition
Output
Flame
Probe
Connection
End View