Garland AIR-DECK GAS BAKE AND PIZZA OVENS - Manuel (Page 7)

Part # 1382670 (12/07) Page 7
INSTALLATION Continued
Canopy Method
The ideal method of venting a gas oven is through the use of
a properly designed canopy which should extend six inches
beyond all sides of the appliance and six feet six inches
from the floor. A strong exhaust fan will create a vacuum
in the room, for an exhaust system vent to work properly,
replacement air must enter the room in which the vent is
located. The amount of air which enters must equal the
amount exhausted.
Direct Connection
An unrestricted vent pipe that provides exit air at the oven
of a minimum of 55 C.F.M. per oven must be provided for the
vent pipe at the top of the oven. The vent pipe should be a
minimum of 6” (152mm) in diameter. A direct connect kit can
be obtained through your dealer.
Do not Undersize Vent Pipe. This can cause resistance to flow
and impede good venting. If a horizontal run must be used
it should rise no less than 1/4” for each linear foot or run. The
flue should rise two feet to three feet above the roof line or
two feet to three feet above any portion of a building within
a horizontal distance of ten feet.
Termination Less than 10 feet (3 meters) from ridge
Less than 10 feet (3 meters)
2' (60cm)
Min.
3' (90cm) Min.
Termination More than 10 feet (3 meters) from ridge
More than 10' (3 meters)
3' (90cm) Min.
Direct Connection Instructions
The G56P-T/B (or double deck), may be direct vented to the
outside. In order to accomplish direct venting and maintain
proper oven operation, it is necessary to install a Direct
Venting Kit part #CK4529. This kit consists of a Heat Collector
(Part #1190100). The Heat Collector Box is mounted over the
flue at the rear of the oven and Draft Diverter is attached to
the top of the Heat collector as shown on next page.
The Heat Collector must be positioned over the rear flue and
as far forward as possible on top of oven. It is necessary to
mark and drill mounting holes on oven top to fasten Heat
Collector securely in place.
An unrestricted vent pipe that provides exit air at the oven
of a minimum of 55 C.F.M. per oven must be provided for the
vent pipe at the top of the oven. The vent pipe should be a
minimum of 6” (152mm) in diameter. A direct connect kit can
be obtained through your dealer.
6" Stove Pipe
Draft Diverter
Heat
Collector
Oven
Flue
Gas
Pipe
15"
10"
16"
Gas Connections
The 1” NPT inlet of the rear must be considered in piping
the gas supply for double deck units. Undersized gas supply
line(s) may restrict the gas supply and affect performance.
If other gas appliances are supplied by the same supply
line, the supply line must be sized to carry the combined
volume without causing more than 1/2” pressure drop at the
manifold of each appliance on the line at full rate.