Mestek TUBULAR GAS FIRED DIRECT SPARK PROPELLER UNIT HEATERS, Installation Instructions And Parts Identification

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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
Basic Description .................................................... 2
Performance & Specifi cation Data .......................... 4
GENERAL SAFETY INFORMATION
Installation Codes ............................................... 2, 3
Special Precautions ............................................ 2, 3
INSTALLATION
Locating Units ..................................................... 5, 7
Combustion Air ................................................... 5, 7
Proper Clearances .............................................. 5, 7
Suspension of Units ............................................ 5, 7
Heat Throw Data ..................................................... 6
Gas Piping .......................................................... 8, 9
ELECTRICAL CONNECTIONS ..................... 10, 11, 12
VENTING ........................................... 13, 14, 15, 16, 17
OPERATION
Explanation of Controls and Operation .................. 18
Main Burner Orifi ce Schedule ............................... 19
Adjustments .................................................... 19, 20
TROUBLESHOOTING GUIDE ................ 21, 22, 23, 24
MAINTENANCE
Servicing & Cleaning ............................................ 25
WARRANTY ............................................................... 26
IDENTIFICATION OF PARTS .............................. 27, 28
Replacement
Parts ................................................ 28
INSPECTION SHEET ................................................. 32
See Identifi cation of Parts, Figures 10-17.
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 Tubular Gas Fired Unit Heaters are a factor y
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 certified 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 - Tubular Propeller Unit Heater