13
3940011 12.12
c. Stack Probe
To install the stack probe:
1. Use w 1/4” drill bit to drill a hole in the side of the
vertical common vent.
2. Insert the stack probe into the vertical common
vent at the point where the draft should be kept
constant. This should generally be below all
fireplace connectors; see Fig. 1 on page 4 of this
manual.
3. Mount the probe so the tip is flush with the inner
most wall of the vent.
4. Connect the stack probe to the transducer using
the silicone tube.
5. Verify the tube is connected to the proper
transducer port. See Fig. 8.
3.4 ADM Installation
Place an access panel in the wall near the location of the ADM. The panel should be large
enough for a technician to reach the actuator for start-up and maintenance.
Stack Probe
Fitting (-)
Connect tubing for
stack probe here
Fitting (+)
Leave open for
room pressure
XTP2 Sensor
Exhaust
Fig. 8
Fig. 9
Use a female coupling to attach the ADM to the fireplace connector at the outlet of the fireplace. The
distance between the fireplace outlet and the ADM should not exceed 12” in order to maintain the signal
strength of the mili-volt circuit. See Fig. 9.
