Garland HEEG "CL", Installation And Operation Manual

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Part # 4526671 (10/02/09) Page 7
Gas Connection
NOTE: The gas supply (service) line must be the same size or
greater than the inlet line of the appliance . Garland Char-
Broilers use a 3/4” NPT inlet . Sealant on all pipe joints must be
resistive to LP gas .
The appliance and its individual shut-off valve must be
disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of
1/2 psi (3 .45 kPa) .
The appliance must be isolated from the gas supply piping
system by closing its individual manual shut-off valve during
any pressure testing of the gas supply piping system at test
pressures equal to or less than 1/2 psi (3 .45 kPa) .
Manual Shut-Off Valve
The Manual Shut-Off Valve is supplied by the installer, it must
be installed in the gas service line ahead of the appliance
and regulator in the gas stream and in a position where it can
be reached quickly in the event of an emergency .
Pressure Regulator
All heavy-duty, commercial cooking equipment must have
a pressure regulator in the incoming service line for safe and
efficient operation, since service pressure may fluctuate with
local demand . The manual shut-off valve is normally supplied
by the installer, but pressure regulators are shipped from
Garland with every Char-Broiler .
Regulators are pre-set at the factory according to the
customer’s ordering instructions . It is important to check and
adjust regulator to manifold operating pressure as per rating
plate .
Prior to connecting the regulator, check the incoming line
pressure, as these regulators can withstand a maximum
pressure of 1/2 psi (14” WC) . If the Line pressure is beyond
this limit, a step-down regulator will be required . Double-
check the arrow forged onto the bottom of the regulator
body which shows gas flow directions; it should point
downstream to the appliance . The red air-vent cap is part of
the regulator and should not be removed unless local codes
require external venting .
Regulators can be adjusted in the field, but it is
recommended that they not be tampered with unless that
part is known to be out of adjustment or serious pressure
fluctuations are found to exist and can be solved no other
way . Any adjustments to regulators must be made by
qualified service personnel with the proper test equipment .
If a vent line from the gas appliance pressure regulator is
used, it should be installed to the outdoors in accordance
with local codes .
In North America in the absence of local codes, in accordance
with the National Fuel code, ANSI Z223 .1, Natural Gas
Installation Code, CAN/CGA-B149 .1 or the Propane
Installation Code, CAN/CGA-B149 .2, as applicable .
WARNING: Failure to install a pressure regulator will void the
equipment warranty!
Rigid Connections
Double-check any installer-supplied intake pipes visually
and clear any dirt particles, threading chips, or other foreign
matter before installing in a service line . Those particles will
clog orifices when gas pressure is applied .
Flexible Couplings & Connectors
If the unit is to be installed with flexible couplings and/or
quick disconnect fittings, for an appliance equipped with
stand and casters, the installation shall be made with a heavy
duty design-certified commercial flexible connector or at
least 3/4” NPT (with suitable strain relief) in compliance with
all local authorities and codes .
In North America connection must be in compliance with the
Standard for Connectors for Moveable Gas Appliances, ANSI
Z21 .69/CSA 6 .16, Addenda Z21 .69B-2006/CSA 6 .16B-2006 (or
latest edition), and a quick-disconnect device that complies
with the Standard for Quick Disconnects for Use with Gas
Fuel, ANSI Z21 .41/CSA 6 .9, Addenda Z21 .41A-2005/CSA
6 .16A-2005 (or latest edition), and adequate means must be
provided to limit the movement of the appliance without
depending on the connector and the quick-disconnect
device or its associated piping to limit the appliance
movement and the location(s) where the restraining means
may be attached to the appliance shall be specified .
INSTALLATION Continued