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Manitowoc GT Series - User Manual

Manitowoc GT Series
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A_GC_SM_HDGASCOUNTERSERV_GT-UT-SERIES (Rev 1)
Service Manual
Garland GT Series
US Range UT Series
Heavy Duty Gas
Counter Equipment
FOR YOUR SAFETY
DO NOT store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other
appliance
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.
IMPORTANT
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.
Users are cautioned that maintenance and repairs must be performed by a Garland/US Range
Authorized Service Agent using genuine Garland replacement parts. Garland/US Range 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 www.garland-group.com
TM
Garland Commercial Ranges, Ltd.
1177 Kamato Road
Mississauga, Ontario L4W 1X4 Canada
General Inquiries P: 905 624 0260 F: 905 624 5669
www.Garland-Group.com
Parts & Service
1 800 427 6668 (Phone, US & Canada)
1 800 361 7745 (Fax, US & Canada)

Questions and Answers

  • N
    Noah OdonnellJul 31, 2025
    What to do if my Manitowoc Broiler has delayed ignition?
    • G
      galvanpamelaJul 31, 2025
      If your Manitowoc Broiler experiences delayed ignition, it could be due to several reasons. First, the unit might be over-gassed fired, in which case you should adjust the manifold pressure. Second, the injector could be incorrect, so verify the injector size. Finally, the burner ports might be plugged; if so, clean the burner ports.
  • T
    Thomas ChandlerAug 6, 2025
    Why do flames lift off the burners on my Manitowoc GT Broiler?
    • M
      Michael GarciaAug 6, 2025
      If the flames lift off the burners in your Manitowoc Broiler, it indicates that too much air is mixing with the gas. To resolve this, reduce the air shutter opening.
  • S
    Stephen HurleyAug 11, 2025
    How to fix a soft, lazy, yellow burner flame on a Manitowoc GT?
    • L
      Lori JohnsonAug 12, 2025
      If the burner flame on your Manitowoc Broiler is soft with a lazy, yellow tip, it means not enough air is mixing with the gas. You can fix this by opening the air shutter.
  • H
    harrisnancyAug 18, 2025
    What to do if the pilot burner will not ignite on my Manitowoc GT Broiler?
    • X
      xwhiteAug 18, 2025
      If the pilot burner on your Manitowoc Broiler will not ignite, there are a couple of potential causes. The pilot flame might be too small, in which case you should adjust the pilot valve. Alternatively, there might be a draft in the kitchen; determine the cause of the draft.
  • A
    Alexandra BrewerAug 25, 2025
    Why does the flame lift off the pilot on my Manitowoc GT?
    • A
      Anne GreenAug 25, 2025
      If the flame lifts off the pilot on your Manitowoc Broiler, it indicates that the pilot is over-gassed fired. Adjust the pilot valve to correct this.

Summary

Safety Requirements

WARNING

Critical warnings regarding potential hazards during installation, operation, or maintenance of the equipment.

IMPORTANT

Key instructions and advice to ensure proper use and understanding of the service manual.

Rating Plate, Serial Number Information

Rating Plate

Details on the location and purpose of the equipment's rating plate.

Serial Number (Year;Month Information)

Explanation of the serial number format and its components for identification.

Technical Data

General Pilot Procedures

Lighting Standing Pilots - All Models

Procedure for lighting standing pilot lights on all Garland/US Range appliance models.

Griddles with SIT Thermostats

Pilot lighting and shutdown procedures for Griddles with SIT Thermostats.

Griddles with GS Thermostats

Pilot lighting and shutdown procedures for Griddles with GS Thermostats.

Shutdown Procedure

General procedure for safely shutting down the appliance.

Shutdown Procedure on Griddles with SIT Thermostats

Specific shutdown steps for Griddles equipped with SIT Thermostats.

Open Top Burners Adjustments

Pilot Adjustment Valves

Location and adjustment of pilot adjustment valves on Open Top Burners.

Burner Gas; Air Shutter Adjustment

Procedure for adjusting the burner gas and air shutter for optimal flame.

Troubleshooting - Open Top Burners

Griddle Adjustments

Griddle Spark Igniter

Overview of the two igniter systems used on Garland griddle units.

Removal and Replacement of Electronic Spark Generator (ESG)

Procedure for removing and replacing the Electronic Spark Generator unit.

Griddle Adjustments - SIT Thermostat

Thermostatic Griddle Pilot Adjustment

Instructions for adjusting the pilot flame on SIT Thermostat controlled griddles.

SIT Valve Calibration Instructions

Mandatory steps for validating the SIT thermostat's performance in the field.

Griddle Adjustments - GS Thermostat

GS Thermostat Calibration Instructions

Procedure for calibrating the GS Thermostat on griddle units.

Replace a GS Thermostat

Step-by-step instructions for replacing a GS Thermostat on the griddle.

Griddle Adjustments - Hi;Low Valve

Adjust a Hi-Lo Valve

Procedure for adjusting the low flame setting on Hi/Lo valves.

Griddle Burner Gas; Air Shutter Adjustment

Procedure for adjusting the burner gas and air shutter on griddles.

Troubleshooting - Griddles

Broiler Adjustments

Broiler Burner Gas; Air Shutter Adjustment

Procedure for adjusting the burner gas and air shutter on broiler units.

Troubleshooting - Broilers

Manitowoc GT Series Specifications

General IconGeneral
BrandManitowoc
ModelGT Series
CategoryBroiler
LanguageEnglish