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TUBULAR GAS FIRED DIRECT SPARK PROPELLER UNIT HEATERS
ATTENTION: READ THIS MANUAL AND ALL LABELS ATTACHED TO THE UNIT CAREFULLY BEFORE
ATTEMPTING TO INSTALL, OPERATE OR SERVICE THESE UNITS! CHECK UNIT DATA PLATE FOR TYPE OF GAS
AND ELECTRICAL SPECIFICATIONS AND MAKE CERTAIN THAT THESE AGREE WITH THOSE AT THE POINT OF
INSTALLATION. RECORD THE UNIT MODEL AND SERIAL No.(s) IN THE SPACE PROVIDED. RETAIN FOR FUTURE
REFERENCE.
Model No.
The use and storage of gasoline or other fl ammable vapors and liquids in open containers in
the vicinity of this appliance is hazardous.
can cause property damage, injury, or death. Read the installation, operating, and
maintenance instruction thoroughly before installing or servicing this equipment.
instructions to avoid exposure to fuel substances, or substances from incomplete
combustion, which can cause death or serious illness. The state of California
has determined that these substances may cause cancer, birth defects, or other
reproductive harm.
Installer Please Note: This equipment has been test fired and inspected. It has been
shipped free from defects from our factory. However, shipment and installation
problems such as loose wires, leaks, or loose fasteners may occur. It is the installer's
responsibility to inspect and correct any problem that may be found.
RECEIVING INSTRUCTIONS
Inspect shipment immediately when
received to determine if any damage
has occurred to the unit during
shipment. After the unit has been
uncrated, check for any visible
damage to the unit. If any damage
is found, the consignee should sign
the bill of lading indicating such
damage and immediately file claim
for damage with the transportation
company.
03/07
INSTALLATION INSTRUCTIONS AND PARTS LIST
If you smell gas:
1. Open windows.
2. Don't touch electrical switches.
3. Extinguish any open fl ame.
4. Immediately contact your gas supplier.
Improper installation, adjustment, alteration, service, or maintenance
APPROVED FOR USE IN CALIFORNIA
Install, operate, and maintain unit in accordance with the manufacturer's
INSTALLER'S RESPONSIBILITY
Serial No.
FOR YOUR SAFETY
FOR YOUR SAFETY
260 NORTH ELM ST., WESTFIELD, MA 01085
TEL: (413) 564-5540
www.sterlinghvac.com
MODELS: TF-100, 125, 150, 175, 200, 250,
Please utilize this toll free number to contact your local
representative 800-490-2290.
HVAC PRODUCTS
FAX: (413) 562-5311
300, 350, 400 GF-150, 250, 400
(S) DSTBIM-3
J30-06935
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Summary of Contents for Sterling GF-150
- Page 1 (S) DSTBIM-3 J30-06935 INSTALLATION INSTRUCTIONS AND PARTS LIST TUBULAR GAS FIRED DIRECT SPARK PROPELLER UNIT HEATERS ATTENTION: READ THIS MANUAL AND ALL LABELS ATTACHED TO THE UNIT CAREFULLY BEFORE ATTEMPTING TO INSTALL, OPERATE OR SERVICE THESE UNITS! CHECK UNIT DATA PLATE FOR TYPE OF GAS AND ELECTRICAL SPECIFICATIONS AND MAKE CERTAIN THAT THESE AGREE WITH THOSE AT THE POINT OF INSTALLATION.
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Page 2: Table Of Contents
TABLE OF CONTENTS SPECIFICATIONS VENTING ........... 12, 13, 14, 15, 16 Basic Description ............ 2 OPERATION Performance & Specifi cation Data ......4 Explanation of Controls and Operation ....17 GENERAL SAFETY INFORMATION Main Burner Orifi ce Schedule ....... 18 Installation Codes .......... -
Page 3: General Safety Information
GENERAL SAFETY INFORMATION Failure to comply with the general Do not attempt to convert the safety information may result in extensive heater for use with a fuel other than the one property damage, severe personal injury, or intended. Such conversion is dangerous, as it will create the risks previously listed. - Page 4 Table 1 - Performance and Dimensional Data - Tubular Propeller Unit Heater Unit Size PERFORMANCE DATA† Input - BTU/Hr. 100,000 125,000 150,000 175,000 200,000 250,000 300,000 350,000 400,000 (kW) (29.3) (36.6) (43.9) (51.2) (58.6) (73.2) (87.8) (102.5) (117.1) Output - BTU/Hr. 81,000 101,250 121,500...
- Page 5 INSTALLATION In Canada, installation must be in accordance to the Do not install unit heaters in corrosive or fl ammable atmospheres! Premature latest edition of CGA B149 “Installation Codes for Gas failure of, or severe damage to the unit will Burning Appliances and Equipment.”...
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Page 6: Installation Codes
INSTALLATION (continued) CLEARANCES: Each Gas Unit Heater shall be Figure 3A located with respect to building construction and other equipment so as to permit access to the Unit Heater. Clearance between vertical walls and the vertical sides of the Unit Heater shall be no less than 6 inches (152mm). -
Page 7: Gas Piping
GAS PIPING To avoid damage or possible personal injury, do not connect gas piping to this unit until a supply line pressure/leak test has been completed. Connecting the unit before completing the pressure/leak test may damage the unit gas valve and result in a fi re hazard. Do not rely on a shut-off valve to isolate the unit while conducting gas pressure/leak tests. - Page 8 PIPE INSTALLATION 1. Install the gas piping in accordance with applicable Figure 4 - Pipe Installation, Standard Controls local codes. 2. Check gas supply pressure. Each unit heater must be connected to a manifold pressure and a gas supply capable of supplying its full rated capacity as specified in Table 4.
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Page 9: Electrical Connections
ELECTRICAL CONNECTIONS Figure 5a - Low-voltage T Thermostat Wiring HAZARDOUS VOLTAGE! Single Stage DISCONNECT ALL ELECTRIC POWER INCLUDING REMOTE DISCONNECTS BEFORE Figure 5b - SERVICING. Failure to Low-voltage disconnect power before Thermostat Wiring servicing can cause severe Two Stage personal injury or death. Standard units are shipped for use on 115 volt, 60 hertz, single phase electric power. -
Page 10: Electrical Connections 9
ELECTRICAL CONNECTIONS (continued) Figure 5d - Tubular Units Equipped with Natural Gas and Propane (LP) Gas... -
Page 11: Electrical Connections 9
ELECTRICAL CONNECTIONS (continued) Figure 5e - Tubular Unit Sizes with Optional 2 Stage Ignition... -
Page 12: Venting
VENTING ANSI now organizes vented Category I Category IV appliances into four categories. Includes non-condensing Covers condensing appliances with positive vent pressure. appliances with negative vent Venting Categories pressure, like the traditional NOTICE: Category II and IV do atmospheric unit heater. not apply to equipment specifi... - Page 13 HORIZONTALLY VENTED UNIT HEATERS (CATEGORY III) Horizontal venting arrangements are designed to be The vent terminal must be at least 12 inches (305mm) used with single wall vent pipe. Horizontal venting from the exterior of the wall that it passes through to arrangements must terminate external to the building prevent degradation of the building material by flue using either single wall or double wall (Type B) vent.
- Page 14 VENTING (continued) Figure 6 - Vertically Vented Tubular Unit Heater – Category I Figure 7 - Horizontally Vented Tubular Unit Heater – Category III ADDITIONAL REQUIREMENT FOR CANADIAN INSTALLATIONS REFER TO SPECIFICATION TABLE AND INSTALLATION MANUAL FOR PROPER USAGE. * The following instructions apply to Canadian installations in addition to installation and operating instructions. 1.
- Page 15 VENTING (continued) Figure 8A Figure 8B...
- Page 16 VENTING (continued) Figure 9A Figure 9B...
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Page 17: Operation
OPERATION POWER VENTED PROPELLER UNITS DIRECT SPARK IGNITION EXPLANATION OF CONTROLS (See Figure 10): 7. The wall thermostat, supplied optionally, is a 1. The unit heater is equipped with a power vent system temperature sensitive switch that operates the vent that consists of a power venter motor and blower, and ignition system to control the temperature of pressure switch, and sealed fl... -
Page 18: Main Burner Orifi Ce Schedule
PRIMARY AIR SHUTTER ADJUSTMENT Primary air adjustment is made at the factory. No fi eld adjustments are necessary. GAS INPUT RATE Check the gas input rate as follows (Refer to General 2. PROPANE GAS: An exact manifold pressure of 10.0 Safety Information section for metric conversions). -
Page 19: Adjustments
Table 5A TUBULAR UNIT HEATER NATURAL GAS PROPANE (LP) GAS HIGH ALTITUDE DERATION This Tubular Unit Heater has been manufactured utilizing Heating* Manifold Heating* Manifold standard burner orifi ces and a normal manifold pressure Altitude Value Pressure Value Pressure setting as per the specifi cations shown on your unit rating (Feet) BTU/Cu. - Page 20 Table 6 - Tubular Propeller Troubleshooting Guide SYMPTOMS POSSIBLE CAUSE(S) CORRECTIVE ACTION A. Flame pops back. 1. Burner orifi ce too small. 1. Check with local gas supplier for proper orifi ce size and replace. Refer to “Operation”. B. Noisy Flame. 1.
- Page 21 Table 6 - Tubular Propeller Troubleshooting Guide (continued) POSSIBLE CAUSE(S) CORRECTIVE ACTION SYMPTOMS I. Burners will not shut off. 1. Thermostat located incorrectly. 1. Relocate thermostat away from outside wall or drafts. 2. Improper thermostat wiring. 2. Check thermostat circuit for open and close on terminal strip on heater “R”...
- Page 22 Table 6 - Tubular Propeller Troubleshooting Guide POSSIBLE CAUSE(S) CORRECTIVE ACTION SYMPTOMS Q. Cold air is delivered during 1. Incorrect manifold pressure or input. 1. Refer to “Operation”. heater operation. 2. Air throughput too high. 2. Refer to “Operation”. R. High limit tripping. 1.
- Page 23 Table 6 - Tubular Propeller Troubleshooting with LED Indicator Assistance No Cycling or appliance power LED STATUS INDICATES CHECK/REPAIR or thermostat call for heat Slow Flash Control OK, no call for heat. Not Applicable since appliance failure has occured. Fast Flash Control OK, call for heat present.
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Page 24: Maintenance
MAINTENANCE PERIODIC SERVICE 2. Turn off the manual gas valve and electrical power to NOTICE: The heater and vent system should be the unit heater. checked once a year by a qualifi ed technician. 3. To clean or replace the burners, remove burner cover. -
Page 25: Warranty
LIMITED WARRANTY Power Vented Tubular Propeller Unit Heaters 1. The "Manufacturer" warrants to the original owner at original installation site that the above model Gas-Fired Heater ("the Product") will be free from defects in material or workmanship for (1) year from the date of shipment from the factory, or one and one-half (1-1/2) years from the date of manufacture, whichever occurs fi... -
Page 26: Identification Of Parts
IDENTIFICATION OF PARTS PROPELLER UNIT HEATERS Figure 11 - Propeller Parts Figure 12 - Component Parts Fan Blade Fan Guard Motor Hardware Hardware D4430 Figure 13 - Heat Exchanger Assembly Figure 14 - Electrical Control Panel... -
Page 27: Replacement Parts
Figure 15 - Power Venter Assembly Figure 16 - Power Venter Assembly (300/400 Unit Sizes Shown) (100/250 Unit Sizes Shown) Figure 17 - Turbulator/High Limit Location HOW TO ORDER REPLACEMENT PARTS Please send the following information to your local representative: if further assistance is needed, contact the manufacturer's customer service department. - Page 28 GAS EQUIPMENT START-UP Customer ____________________________________ Job Name & Number _________________________ PRE-INSPECTION INFORMATION With power and gas off. Type of Equip: Unit Heater Serial Number _________________________ Model Number __________________________ Name Plate Voltage: _____________ Name Plate Amperage: _____________ Type of Gas: Natural Tank Capacity _______ lbs.
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Do you have a question about the GF-150 and is the answer not in the manual?
Questions and answers
why would ignitor click but not light
The ignitor on a Sterling GF-150 may click but not light due to the following reasons:
1. Gas Supply Issues – The gas supply may be off, there may be a gas pressure loss, or the pressure may be too low.
2. Flame Sense Rod Issues – The flame sense rod may be contaminated or have a loose wire.
3. Gas Valve Issues – The gas valve switch may be off, or its wires may not be connected.
4. Ignitor Damage – The porcelain on the flame probe or spark ignitor may be broken or cracked.
To resolve the issue, check the gas supply, clean or secure the flame sense rod, verify gas valve connections, and inspect the ignitor for damage.
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