Filter
Top Products
DUALAIR
®
HEATING AND COOLING UNITS INSTALLATION OPERATION AND SERVICE MANUAL
22
Figure 12: Automatic Burner Control Box Sequence
Figure 13: Modureg Gas Valve
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 must be manually reset before further start attempt.
Inlet Pressure
Gas Outlet
Outlet Pressure
Plug for
Main Gas Valve
Gas Inlet
Plug for
Main Gas Valve
Max Pressure Adjustment
Min Pressure Adjustment
6.3mm AMP
Terminals for
Modulation
Modureg Modulating Regulator
Honeywell Gas Valve
Moving Shaft