Table of Contents
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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 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 instructions 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, during 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 problems that may be found.
RECEIVING INSTRUCTIONS
Inspect shipment immediately when
received to determine if any damage
h a s o c c u r r e d t o t h e u n i t d u r i n g
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
a n d i m m e d i a t e l y f i l e c l a i m f o r
d a m a g e w i t h t h e t r a n s p o r t a t i o n
company.
1/08
INSTALLATION INSTRUCTIONS & PARTS LIST
SEPARATED COMBUSTION
GAS FIRED PROPELLER UNIT HEATERS
If you smell gas:
1. Open windows.
2. Don't touch electrical switches.
3. Extinguish any open fl ame.
4. Immediately call your gas supplier.
Improper installation, adjustment, alteration, service or maintenance
APPROVED FOR USE IN CALIFORNIA
Install, operate and maintain unit in accordance with 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: QVSF (100, 125, 150, 175, 200,
Please utilize this toll free number to contact your local
representative 800-490-2290.
HVAC PRODUCTS
FAX: (413) 562-5311
225, 250, 300, 350, 400)
(S) PSCII-5
J30-05369
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Table of Contents
Related Manuals for Sterling QVSF 100
Summary of Contents for Sterling QVSF 100
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Page 1: Separated Combustion
(S) PSCII-5 J30-05369 INSTALLATION INSTRUCTIONS & PARTS LIST SEPARATED COMBUSTION GAS FIRED 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 POINT OF INSTALLATION. -
Page 2: Table Of Contents
TABLE OF CONTENTS SPECIFICATIONS INSTALLATION - VENTING Basic Description ............ 2 Combustion Air Venting & Piping ......14 Performance & Specifi cation Data ......4 Exhaust Venting ........14, 15, 16 GENERAL SAFETY INFORMATION OPERATION ..........17, 18, 19 Installation Codes (throughout manual) ....2, 3 Adjustments ............ -
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 property heater for use with a fuel other than the one intended. Such conversion is dangerous, as it damage, severe personal injury or death. will create the risks listed previously. - Page 4 Table 1 – Performance and Specifi cation Data – Separated Combustion Propeller Unit heater Unit Size PERFORMANCE DATA ‡ Input BTU/Hr 100,000 125,000 150,000 175,000 200,000 225,000 250,000 300,000 350,000 400,000 (kW) (29.3) (36.6) (43.9) (51.2) (58.6) (65.9) (73.2) (87.8) (102.5) (117.1) Output BTU/Hr...
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Page 5: Installation
INSTALLATION Do not install unit heaters in corro- of the highest aircraft to be stored in the hangar and sive or fl ammable atmospheres! Premature failure 8 feet (2.4m) above the fl oor in shops, offi ces and other sections of the hangar where aircraft are not stored or of, or severe damage to the unit will result! housed. - Page 6 INSTALLATION (continued) Make certain that the structure Unit heaters should not be installed to maintain low to which the heater is mounted is capable of temperatures and/or freeze protection of buildings. A minimum of 50°F (10°C) thermostat setting must supporting its weight. Under no circumstances be maintained.
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Page 7: Gas Supply Piping
GAS SUPPLY PIPING To avoid equipment 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
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 (see tabe 4). -
Page 9: Electrical Connections
ELECTRICAL CONNECTIONS * Thermostat wires tagged “W” and “G” must be connected together except when using a general purpose "SPDT" HAZARDOUS VOLTAGE! 24VAC relay and a standard thermostat with subbase. disconnect ALL ELECTRIC POWER INCLUDING REMOTE Figure 5 - C1267G DISCONNECTS BEFORE SERVICING. - Page 10 Figure 6...
- Page 11 Figure 7...
- Page 12 Figure 8...
- Page 13 FIGURE 9...
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Page 14: Installation - Venting
INSTALLATION - VENTING 7. The equivalent length of the vent system must not be COMBUSTION AIR VENTING AND PIPING less than 5 feet and must not exceed 50 feet (15.2m). Equivalent length equals the total length of straight Never operate unit heaters without pipe plus 10 feet (4.6m) for each 90°... - Page 15 INSTALLATION CONTINUED 6. The vent system must be installed to prevent NOTICE: Increasing the clearance distances may collection of condensate. Pitch horizontal pipes be necessary if there is a possibility of distortion or downward 1/4 inch per foot (21mm/m) toward the discoloration of adjacent materials.
- Page 16 Figure 10A - Horizontal Intake/Vent Locations Figure 11 - Vertical Vent Installation Figure 11A - Horizontal Vent Installation...
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Page 17: Operation
OPERATION Never operate the unit beyond the INITIAL LIGHTING 1. Open the manual gas valve, in the gas supply line to specifi ed limits or severe damage to and or premature failure of the unit will result! the unit heater. Loosen the union in the gas supply line to purge it of air. - Page 18 Figure 12 - Burner Components/Unit Controls Intermittent Pilot Ignition BURNER DRAWER COMMON PARTS: 1. MAIN BURNERS 2. BURNER MANIFOLD 3. AIR SHUTTERS 4. BURNER SPRINGS 5. MAIN BURNER ORIFICE 6. TRANSFORMER 7. PILOT TUBING CONTROLS (REFER TO UNIT WIRING DIAGRAM): 8A.
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Page 19: Adjustments
Table 5 - Main Burner Orifi ce Schedule* NOTICE: There may be momentary and spasmodic orange flashes in the flame. This is caused by the TYPE OF GAS NATURAL PROPANE burning of airborne dust particles, and not to be 1075 BTU/Ft 2500 BTU/Ft HEATING VALUE confused with the yellow tipping, which is a stable... -
Page 20: Maintenance
MAINTENANCE 3. To clean or replace the main burners, remove the PERIODIC SERVICE bottom panel and compress the spring by moving the burner toward the manifold. Slide the opposite NOTICE: The heater and vent system should be end of the burner downward from the locating slot checked once a year by a qualifi... -
Page 21: Identification Of Parts
IDENTIFICATION OF PARTS Figure 14 - COMBUSTION CHAMBER Figure 15 - Internal Furnace Assembly GAS VALVE MANIFOLD PILOT ASSY. MAIN RETAINER SPRING AIR SHUTTERS BURNERS Figure 16 - Separated Combustion Unit Heater PRESSURE SWITCH POWER VENT ASSY. POWER VENT MOTOR FAN MOTOR FAN GUARD AIR INLET... - Page 22 Table 6 - Power Vented Propellers Troubleshooting Guide SYMPTOMS POSSIBLE CAUSE(S) CORRECTIVE ACTION A. Flame lifting from burner 1. Pressure regulator set too high. 1. Reset manifold pressure. Refer to ports. “Operation”. 2. Defective Regulator. 2. Replace regulator section of combin- ation gas valve or complete valve.
- Page 23 Power Vented Propellers Troubleshooting Guide SYMPTOMS POSSIBLE CAUSE(S) CORRECTIVE ACTION 7. Defective thermostat. 7. Check thermostat and replace if H. Failure to ignite. defective. 8. Defective transformer. 8. Be sure 115 volts is supplied to the transformer primary, then check for 24 volts at secondary terminal before replacing.
- Page 24 Power Vented Propellers Troubleshooting Guide SYMPTOMS POSSIBLE CAUSE(S) CORRECTIVE ACTION O. Fan will not run. 1. Loose wiring. 1. Check and tighten all wiring connections per diagrams. Thermostat wires tagged “W” and “G” must be connected together (unless special thermostats are used; if so, see thermostat wiring diagram).
- Page 25 Power Vented Propellers Troubleshooting Guide SYMPTOMS POSSIBLE CAUSE(S) CORRECTIVE ACTION 1. Check all connections, term. X. Spark present but pilot does 1. Loose S8600 connections. PV feeds 24V to pilot valve. not light. 2. Check pressure — pressure that is 2.
- Page 26 Figure 17 - Power Venter Assembly REF. REF. DESCRIPTION DESCRIPTION Blower Housing Assembly Junction Box Cover Speed Nut Snap Bushing Motor Relay (Motor) Washer, Plain Draftor Stack Assembly Plate Adapter Tubing (Aluminum) Formation Blower Wheel* Male Connector Mounting Bracket (Pressure Switch) Locknut Mounting Bracket (Junction Box) Hole Plug...
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Page 27: Replacement Parts
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. • Model number • Serial Number (if any) • Part description and Number as shown in the Replacement Parts Catalog. LIMITED WARRANTY SEPARATED COMBUSTION PROPELLER UNIT HEATERS The “Manufacturer”... - Page 28 GAS EQUIPMENT START-UP Customer ____________________________________ Job Name & Number _________________________ PRE-INSPECTION INFORMATION With power and gas off. Type of Equip: Unit Heater Duct Furnace Indoor Rooftop Serial Number _________________________ Model Number __________________________ Name Plate Voltage: _____________ Name Plate Amperage: _____________ Type of Gas: Natural Tank Capacity _______ lbs.
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