19
AIR INLET AND EXHAUST OUTLET RESTRICTORS
The GABO is equipped with externally adjustable restrictors for both the inlet air and the exhaust outlet.
This makes it possible to fine tune the direct vent system for the specific conditions of your installation.
The recommended settings are keyed to the specific details of your venting configuration.
To access the restrictor adjustment guide plates, you must first remove the front air louver from the stove.
To do this, first loosen the four decorative fasteners that secure the stove top. These do not have to be fully
removed but must be loose enough that the front of the top can be lifted up slightly. The louver assembly is
held in place by pins that are keyed to special slots in the sides of the stove. Grasp the louver assembly
firmly. Note: The louver is quite heavy so get a good grip on it. Pull the louver forward and lift the louver
up until it disengages from its retainer pins. The stove top may have to lifted slightly to allow room for the
louver to disengage from the stove. Having a second person lift the front edge of the top may be helpful
since the top is quite heavy. Once the louver disengages, slide it forward to remove it and set it aside. This
will now give you access to the restrictor guide plates and locking wingnuts.
ASSEMBLY
LOUVER RETAINER
SLOT
LOUVER RETAINER
PIN
You will now see the two guide plates. The guide plates have a pointer that corresponds to a number scale
for the air adjustment and letter scale for the exhaust adjustment. These are the letters and numbers that are
referenced in the venting charts on pages 10 and 11 and shown in detail in the examples shown on pages 8
and 9. To change the setting, loosen the guide plate locking wingnuts. Next rotate each guide plate to the
recommended setting for your installation shown in the appropriate venting chart for natural gas or for pro-
pane (LP) gas. Once the settings are correct, tighten the locking wingnuts.
INLET AIR
RESTRICTOR
GUIDE PLATE
LOCKING
WINGNUT
EXHAUST RESTRICTOR
GUIDE PLATE
LOCKING
WINGNUT
