21
Quadra-Fire • EXCURSION-I, EXCURSION-II, EXCURSION-III Installation Manual • 2538-980 Rev. E • 5/19
B. Using Vertical Restrictor
EXHAUST
AIR
VENT PIPE
TERMINATION
CAP
INLET AIR
VENT PIPE
V = 10 FT. MINIMUM
50 FT. MAXIMUM
NOTE: TO ACHIEVE OPTIMUM PERFOR-
MANCE OF INSERT, MINIMIZE OR AVOID
BENDS IN EXHAUST VENT PIPE.
EXHAUST
COLLAR
INLET
COLLAR
V=
10 ft. - 25 ft. No adjustment needs to be done.
26 ft. - 35 ft. Open 1 restrictor opening.
36 ft. - 50 ft. Open both restrictor openings.
Figure 5.3 Firebox Bafe
To open restrictors, push the restrictor doors upward.
The restrictor doors should be bent at a 90°. See Figure
5.3.
Figure 5.2 Min. / Max. Venting Requirement
When 20-25+ feet of vertical venting is used, vertical
restrictors will need to be adjusted. See Figure 5.2 and
5.3.
Opening restrictors will help reduce cold start issues
(cycling).
Appliance - 25 in. & 30 in.
V=
10 ft. - 20 ft. No adjustment needs to be done.
21 ft. - 35 ft. Open 1 restrictor opening.
36 ft. - 50 ft. Open both restrictor openings.
Appliance - 35 in.