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INSTALLATION AND
OPERATION MANUAL
GARLAND GPD
SERIES GAS PIZZA OVENS
ANSI Z83.11-2016
CSA.8-2016
MH62113
FOOD SERVICE EQUIP.
FOR YOUR SAFETY:
DO NOT STORE OR USE GASOLINE
OR OTHER FLAMMABLE VAPORS OR
LIQUIDS IN THE VICINITY OF
THIS OR ANY OTHER
WARNING:
IMPROPER INSTALLATION, ADJUSTMENT,
ALTERATION, SERVICE OR MAINTENANCE
CAN CAUSE PROPERTY DAMAGE, INJURY,
OR DEATH. READ THE INSTALLATION,
OPERATING AND MAINTENANCE
INSTRUCTIONS THOROUGHLY
BEFORE INSTALLING OR
SERVICING THIS EQUIPMENT
Users are cautioned that maintenance and repairs must be performed by a Garland authorized service agent
using genuine Garland replacement parts. Garland will have no obligation with respect to any product that has been
improperly installed, adjusted, operated or not maintained in accordance with national and local codes or installation
instructions provided with the product, or any product that has its serial number defaced, obliterated or removed,
or which has been modified or repaired using unauthorized parts or by unauthorized service agents.
For a list of authorized service agents, please refer to the Garland web site at http://www.garland-group.com.
The information contained herein, (including design and parts specifications), may be superseded and is subject
to change without notice.
Original Document
Document #: G_GO_OM_PYRODECK_4606131 – 12/20
APPLIANCE
Bring Your Passion to the Surface
PLEASE READ ALL SECTIONS OF THIS MANUAL
AND RETAIN FOR FUTURE REFERENCE.
THIS PRODUCT HAS BEEN CERTIFIED AS
COMMERCIAL COOKING EQUIPMENT AND
MUST BE INSTALLED BY PROFESSIONAL
PERSONNEL AS SPECIFIED.
IN THE COMMONWEALTH OF MASSACHUSETTS
THIS PRODUCT MUST BE INSTALLED BY A
LICENSED PLUMBER OR GAS FITTER. APPROVAL
NUMBER: G-1-07-05-28
For Your Safety:
Post in a prominent location, instructions to be
followed in the event the user smells gas. This
information shall be obtained by consulting
your local gas supplier.

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Table of Contents
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Summarization of Contents

Installation
Rating Plate
Details on the appliance's rating plate, found on the right side of the unit.
Gas Connections
Instructions for connecting the main gas supply, including inlet size and pressure testing.
Installation Clearances
Minimum clearances for combustible and non-combustible construction.
Preparation
Steps for unpacking the unit and removing packing materials.
Ventilation
Requirements for proper ventilation for satisfactory combustion and venting.
Air Supply
Ensuring sufficient room air ingress for proper appliance operation.
Installing Under Ventilation Canopy
Guidelines for ovens installed under a ventilating canopy.
Installing with Direct Ventilation
Requirements for direct flue installation, including draft diverters.
Assembly Instructions
Leg Installation
Instructions for installing the unit's factory-supplied legs.
Hearth Installation
Procedure for installing hearth core plates or the hearth steel assembly.
Double Deck Assembly
Procedure for assembling units with double deck configurations.
Gas Connection
Details on connecting the gas supply, including shut-off valve and pressure testing.
Adjustments
Gas Pressure Adjustments
Checking and ensuring the gas pressure matches the rating plate.
Flame & Air Mixture Adjustment
Adjusting air mixture for optimal blue flame quality and combustion.
By-Pass Flame Adjustment
Adjusting the by-pass flame for a steady pilot flame.
Calibration
Procedure to calibrate the thermostat for accurate temperature control.
Flame Diverters
Function and installation of flame diverters for even heat distribution.
Operation
Break-In Procedure
Initial oven warm-up and curing process to remove residual oils and moisture.
Lighting and Shutdown Instructions
Safe procedures for lighting pilot and main burners and shutting down the unit.
Cleaning
Oven Exterior Cleaning
Instructions for cleaning the appliance's exterior surfaces.
Oven Interior Cleaning
Procedure for cleaning the interior surfaces of the oven.
Core Plates Cleaning
Method for cleaning core plates, noting warranty implications.

Table of Contents