3
06-237172-001 Rev AA
June 2011
ROLLOUT SWITCH
Some control applications may have a separate rollout switch
directly connected to the old ignition control. In this case, the
rollout switch (normally closed) should be connected directly to
the THS terminal on the 35-63J. Verify the rollout switch is wired
in series (downstream) with the thermostat signal. The old THS
wire should be left unconnected and insulated to prevent the
possibility of a short-circuit.
VENT DAMPER CONNECTIONS
The 35-63J does not include an integral vent-damper connec-
tor. When replacing an older control (in applications using a
vent damper) that has a standard 6-pin vent damper plug, the
vent damper wires from the plug must be re-terminated and
connected as follows:
Note:
If the old control has a vent damper plug (with a
jumper between pins 2 and 3), but the heating appli-
ance has no vent damper, then ignore this section.
•
To connect the Vent Damper, the wire from Pin 1 should be
connected to 24VAC Hot from the supply transformer.
•
The wire from pin 2 should be connected to the Thermostat
input (THS) on the 35-63J control. This should be the only
wire attached to the THS terminal.
•
The wire from Pin 4 connects directly to the 24VAC Com-
mon.
•
The wire from pin 5 should be connected directly to the
Thermostat (call for heat signal) and not to the 35-63J
control.
Figure 1. Wire Sideview of Plug
Figure 2. Vent Damper Wiring Diagram
VENT DAMPER CHECKOUT
During the checkout of the new control, you must confirm the
proper operation of the vent damper as follows:
•
With the system in standby (no call for heat) the vent
damper should be driven closed by the 24 VAC power.
•
When the Thermostat calls for heat, the vent damper starts
to open. After the damper is fully open, the 35-63J then
sees the 24 VAC call for heat at the THS input and begins
the normal ignition sequence.
Pin # on
Damper Plug
System Connection
1
Full-time 24VAC Hot
2
Call for Heat signal (from damper)
3
Fused 24 VAC (not used)
4
24VAC Common
5
24 VAC from Thermostat
6
Not Used
24 VAC Common
Full -time 24 VAC Hot
Call for Heat signal (from damper)
24 VAC from Thermostat
Fused 24 VAC (Not Used)
Not Used
4
1
5
2
6
3
Vent Damper
24 VAC
5
4
2
1
Thermostat
Pilot Gas Valve
Main Gas
Valve
Pilot
H.V.
Sense
Blind_Term
GND
_GND
GND_
THS
PV
MV
35-63J
