Sterling SF User Manual
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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 hazard-
ous 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
Description………………………………………. ........... 2
Performance & Dimensional Data .............................. 4
GENERAL SAFETY INFORMATION
Installation Codes……………………………. ............ 2,3
Special Precautions…………………………. ............ 2,3
INSTALLATION
Locating Units…………………………………. ............. 5
Combustion Air……………………………….. .............. 5
Heat Throw Data…………………………….. ............... 6
Clearances………………………………………. ........... 7
Suspension of Units .................................................... 7
Gas Piping .................................................................. 8
PIPE INSTALLATION………………………… ................ 9
ELECTRICAL CONNECTIONS……………. ..........10-12
VENTING………………………………………… .....13-18
OPERATION
Explanation of Controls…………………… ................ 19
Gas Input Rate…………………………………. .......... 20
Main Burner Orifi ce Schedule…………. ................... 20
TROUBLESHOOTING GUIDES………….. ............22-25
MAINTENANCE……………………………….. ............ 26
WARRANTY……………………………………… ......... 27
IDENTIFICATION OF PARTS ................................ 28,29
START-UP INSPECTION SHEET…………. .Back Cover
See Identifi cation of Parts, Figures 8-15.
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.
DESCRIPTION
The Separated Combustion Tubular Gas Fired Unit
Heaters are a factory assembled, power vented, low
static pressure type propeller fan unit heaters designed
to be suspended within the space to be heated.
THESE HEATERS ARE NOT TO BE CONNECTED
TO DUCTWORK. The designs are certifi ed by ETL as
providing a minimum of 83% 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 - Separated Combustion Tubular Propeller Unit Heater