12
Installation
GGF-400, GGF-720
2.8.
Gas Orifices: Information & Replacement Procedure
Gas flow varies at different elevations. Verify the elevation at the installation site. If the elevation is greater than
noted above for the fuel type, orifices must be changed. To confirm that proper orifices are installed or to
exchange, follow the steps below. Orifices are available from Giles
(call factory at 800.554.4537)
and it is possible
that they may also be sourced locally; consult charts below.
1. Ensure power to the unit is disconnected.
2. Confirm that gas valves are in the
[OFF]
position.
3. Remove rear Fan Guard & Back Panel.
4. It should be possible to examine the ID stamp on
orifice head without removing parts.
5. If Orifice is incorrect for the actual installation
altitude, disconnect Gas Line and remove the
Gas Manifold.
6. Remove & replace Orifice in the Manifold with
the proper size.
See charts below.
7. Re-install Gas Manifold with installed orifice,
reconnect gas line, and replace Panel & Guard.
Proceed to
Section 2-10; Gas Pressure Setting
and Adjustment
.
IMPORTANT!
Fryer is shipped with factory-installed standard gas Orifices for operation with
Natural Gas at 0 - 3,000 feet
AMSL
, or
LP Gas at 0 - 4,000 feet AMSL
.
Changing the type of fuel gas will require a proper Conversion Kit, contact factory.
Orifice chart for GGF-400 Fryer
Orifice chart for GGF-720 Fryer
Gas Line
connects at
this fitting
Gas Manifold
Burners
*
Covered
Altitude
Range
Gas Type
Gas Orifice
IMPORTANT! [Model GGF-720 with 2 Burners]
When removing and reattaching gas lines, for any service or maintenance event, be sure that they are
reattached to the same burner manifold from which they were removed. Inadvertently switching these lines
will result in ignition failures.
NOTE: The model GGF-720 is equipped with (2) Burners, Orifices,
Gas Manifolds & gas lines.
Summary of Contents for GGF Series
Page 13: ...4 Model GGF 400 GGF 720 Introduction ...
Page 26: ...Model GGF 400 GGF 720 Overview 18 3 1 Control Panel 5 6 4 3 2 1 7 ...
Page 28: ...20 Model GGF 400 GGF 720 Overview 3 2 Lower Cabinet 5 6 4 3 2 1 7 ...
Page 32: ...24 Model GGF 400 GGF 720 Overview 3 4 Basket and Elevator Assembly 3 1 2 4 ...
Page 38: ...30 Model GGF 400 GGF 720 Overview Notes ...
Page 42: ...34 Fryer Preparation Model GGF 400 GGF 720 ...
Page 80: ...72 Troubleshooting Model GGF 400 GGF 720 ...
Page 88: ...80 Parts List 8 5 Plumbing Model GGF 400 GGF 720 1 2 2 3 3 4 5 6 7 7 7 7 8 10 11 9 12 ...
Page 90: ...82 Parts List 8 6 Basket Basket Cover Model GGF 400 GGF 720 1 2 3 ...
Page 94: ...86 Parts List Notes Model GGF 400 GGF 720 ...
Page 95: ......