Restrictors - Valor H4 650JN Installation Manual

Appliance Preparation
Install Air Restrictors (if necessary)
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 650
appliance. 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
diff erent positions depending of the ven 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.
Vent terminal Appliance
vent outlet
Horizontal Top or Rear
through wall
with vertical
rise
No vertical rise
= NO restrictor
Vertical Top or Rear
through roof
Vertical vent Restrictor
pipe run setting
Less than
6' [183 cm]
From 6' to 20'
[1,83 to 6,1 m]
From 20' to 40'
[6,1 to 12,2 m]
Less than
20' [6,1 m]
From
20' to 40'
[6,1 to 12,2 m]
Air Restrictor Assembly
DO NOT INSTALL HERE!
INSTALL HERE
Re-install Rear Log Support
Refi t the rear log support in place (5 screws).

Restrictors

Adjustable
piece
25