Install Air Restrictors - Valor HORIZON 534JN Installation & Owner's Manual

Install Air Restrictors

No restrictors are required for appliances which only have a
horizontal vent run. If installing an appliance which has a rear vent
outlet connection and no vertical vent pipe rise, ignore this stage.
Two restrictor sets, like the one shown at right, are supplied with each
534 engine unit. The restrictors cover part of the inlet air openings in
the fi rebox rear wall behind the rear log support. Do NOT install the
restrictors in the roof of the fi rebox!
Each restrictor set includes an adjustable piece which can be moved
to different positions depending of the vent confi guration. See the table
below to fi nd out which position is optimal for each type of installation.
• To fi t the restrictors, loosen the two center screws of the left and right
inlet ports. Place the restrictor assembly under the screw heads and
tighten the center screws.
• To set the adjustable restrictor piece, loosen the two screws, position the
adjustable piece according to the diagram below and tighten the screws.
Appliance
Vent terminal
vent outlet
Horizontal Top or Rear Less than
through wall 6' (183 cm)
with vertical
rise
No vertical
rise = NO
From
restrictor 6' (1.83 m) to
20' (6.1 m)
From
20' (6.1 m) to
40' (12.2 m)
Appliance
Vent terminal
vent outlet
Vertical Top or rear Less than
through roof 20' (6.1 m)
From
20' (6.1 m) to
40' (12.2 m)
Installation
Vertical vent Use restrictor
pipe run setting
Vertical vent Use restrictor
pipe run setting
Air Restrictor Assembly
DO NOT INSTALL HERE!
INSTALL HERE
QUALIFIED
INSTALLER
Adjustable
piece
33 33