10
The Blocked Vent Shut-Off
(BVSO) must be installed
between the furnace outlet
and the draft regulator.
Use the three wire fastners.
The wires must not come in
contact with the flue and
cleaning pipes.
The BVSO must be
installed between 2 in.
and 12 in. from the
furnace outlet.
Limit Switches
A06614
Fig. 9 -- Blocked Vent Shut--Off Device Wiring
(Installation shown: Upflow with vertical exhaust)
A06615
Fig. 10 -- Blocked Vent Shut--Off Device Wiring
(Installation: Upflow with vertical exhaust)
A06616
Fig. 11 -- Blocked Vent Shut--Off Device Wiring
(Installation: Downflow)
374RAN
