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TABLE OF CONTENTS
The following terms are used throughout this manual, in addition to the ETL requirements to bring attention to the
presence of potential hazards, or to important information concerning the product:
Indicates an imminently hazardous
situation which, if not avoided, will result in
death, serious injury, or substantial property
damage.
Indicates an imminently hazardous
situation which, if not avoided, could result in
death, serious injury, or substantial property
damage.
Indicates an imminently hazardous
situation which, if not avoided, may result in minor
injury or property damage.
NOTICE: Used to notify of special instructions on
installation, operation, or maintenance which are
important to equipment but not related to personal
injury.
SPECIFICATIONS
Basic Description ....................................................2
Performance & Specifi cation Data ......................4, 5
GENERAL SAFETY INFORMATION
Installation Codes ...............................................2, 3
Special Precautions ............................................2, 3
INSTALLATION
Locating Units .....................................................6, 7
Combustion Air ...................................................6, 7
Proper Clearances ..............................................6, 7
Suspension of Units ............................................6, 7
Gas Supply Piping ..............................................8, 9
ELECTRICAL CONNECTIONS ............................10-15
VENTING
General .............................................................16-17
Standard Combustion ......................................18-25
Separated Combustion ....................................26-30
OPERATION
Explanation of Controls and Operation ..................31
Main Burner Orifi ce Schedule ...............................32
Adjustments ..........................................................32
High Altitude Operation ..................................32, 33
MAINTENANCE
Servicing & Cleaning ............................................33
TROUBLESHOOTING GUIDE .............................34-38
IDENTIFICATION OF PARTS ..............................39, 40
WARRANTY ...............................................................41
MODEL NUMBER .....................................................42
INSPECTION SHEET .................................................43
See Identifi cation of Parts throughout this manual.
DESCRIPTION
The Residential Tubular Gas Fired Unit Heater is a
factory assembled, power vented, low static pressure
type propeller fan unit heater designed to be suspended
within the space to be heated. THESE HEATERS ARE
NOT TO BE CONNECTED TO DUCTWORK. These
Tubular Unit Heaters are design certified under ANSI
Z83.8 for Industrial/Commercial use and IAS .10.96 U.S.
NOTICE: It is the equipment owners responsibility to provide any scaffolding or other apparatus required to
perform emergency service or annual/periodic maintenance to this equipment.
(2nd ed.) “Unit Heaters for Residential Installation”. The
designs are certified by ETL as providing a minimum
of 80% thermal efficiency, and approved for use in
California. Do not alter these units in any way. If you
have any questions after reading this manual, contact
the manufacturer.
Figure 1 - Tubular 30 thru 120 Propeller Unit Heaters
GG120 GG030