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SU-3 199,000 BTU/H to 400,000 BTU/H
SU-4 300,000 BTU/H to 550,000 BTU/H
The burner shall be used only with NATURAL GAS or LP GAS .
Warning: If the following instructions are not followed exactly, a fire or explosion may result,
causing property damage, personal injury or death.
•
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any
other appliance.
Do not try to light any appliance.
•
•
Do not touch any electrical appliance.
•
Do not use any telephone in your building.
Immediately call your gas supplier from an outside phone. Follow the gas supplier's instructions.
•
•
If you cannot reach your gas supplier, call the fire department.
•
A qualified installer, service agency or the gas supplier must perform installation and service.
•
At least once per year, a qualified service agency needs to contracted for other than routine
maintenance.
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All installations must be made in accordance with all state and local codes, which may differ from
instructions in this manual.
•
The installer should inform and demonstrate to the user the correct operation and maintenance of the
appliance.
•
The installer shall also inform the user of hazards of flammable liquids and vapors and shall remove
such liquids and vapors from the vicinity of the burner.
•
The installation adjustment data trap (or label) supplied shall be filled in and affixed to the burner or
the covered appliance.
These instructions should be affixed to the burner or adjacent to the heating appliance.
28 Industrial Blvd. Unit I Medford, NY 11763
QHT Manual for:
- WHAT TO DO IF YOU SMELL GAS? –
Massachusetts Plumbing Board
G3-0904-16
Manufactured by Heat Wise, Inc.
1
rev 2007-1
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Table of Contents
Related Manuals for Heat Wise SU-3
Summary of Contents for Heat Wise SU-3
- Page 1 QHT Manual for: SU-3 199,000 BTU/H to 400,000 BTU/H SU-4 300,000 BTU/H to 550,000 BTU/H The burner shall be used only with NATURAL GAS or LP GAS . Warning: If the following instructions are not followed exactly, a fire or explosion may result, causing property damage, personal injury or death.
- Page 2 Check the model number on the label located on the cover of the control box for the specifications of the burner. Note: Gas trains supplied with the SU-3 and SU-4 are for specific firing ranges, as covered by various codes and listing agencies. Firing this burner above the allowed firing rate will void the warranty, and may result in a fire or explosion, causing property damage, personal injury or death.
- Page 3 • Fuel: The SU-3 and SU-4 Burners will fire natural gas or LP. The maximum inlet pressure at test port is 11” W.C. for both natural and LP gas. • Length of Flame Tube: 5 ¼” or 14” (special order) •...
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Page 4: Air For Combustion
Warning: Should overheating occur, 1) shut off the manual gas shut off valve to control the appliance; 2) DO NOT shut off the control switch to the blower This power gas burner is designed to convert oil and/or coal fired boilers and furnaces to a gas-burning appliance. -
Page 5: Chimney Requirements
Tighten all the nuts equally. Make sure that the allen screws are backed out, to allow enough clearance. Then, insert the SU-3/SU-4 gas burner into the boiler. Once the burner is inserted and pushed all the way forward, tighten the allen screw on the top of the flange. -
Page 6: Gas Service And Pipe Capacity
Gas Service and Pipe Capacity Before connecting the burner to the gas supply, insure that the gas pipes and service meter are large enough to permit the additional load of the gas burner (see Table 3). Table 3: Pipe Capacity Table*( x 1,000 BTU’s) Nominal diameter of pipe in inches Pipe Length** 1”... - Page 7 Fig. 3 Gas Burner Piping* *The dotted lines represent field installation. Chimney Liner, Draft Regulator And Vent Pipe Some utilities require new chimney liners for all gas installations. Use a corrosion resistant chimney liner (approved for gas service) of the same size as the vent pipe. Use a double swing draft regulator, listed by CSA or U.L.
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Page 8: Pressure Switch Settings
Table 4: Pressure Switch Settings Firing Flame Inlet Press. Manifold Press. > 50% T + ∆P* <1.5 x T Rate Tube Nat. 5 ¼” 6.9” 3.3” 1.6+1=2.6” 3.3x1.5=4.9” 5 ¼” 5.5” 4” 2+1=3” 4x1.5=6” Nat. 14” 6.9” 3.3” 1.6+1=2.6” 3.2x1.5=4” Nat. - Page 9 At head position D , the SU-3/SU-4 gas burner fires at 300,000 BTU when the gas manifold pressure is 3.5” W.C. Adjust the air shutter and use a combustion analyzer to set the burner to between 8.5% and 10.0% CO for natural gas or between 10.0% and 11.5% for LP gas.
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Page 10: Electric Wiring
Electric Wiring These gas burners are manufactured for use with 120 volt, 60 cycle, single-phase electric current. The installation must comply and be grounded in accordance with the National Board of Fire Underwriters and National Electric Code ANSI/NFPA No. 70-1987 (or the latest addition). All applicable local codes should be followed as well. - Page 11 FIG. 8 Optional motor-off delay wiring Note: This wiring diagram is included for reference as an option for field wiring of a motor –off delay with the S89F control. Burners do not come equipped with this option and require extra components to be purchased and installed according to code. SEQUENCE OF OPERATIONS Honeywell S89F Limits close.
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Page 12: Commissioning The Burner
Note: if any adjustments are made, it is important to recheck the firing rate and combustion analysis. LIGHTING INSTRUCTIONS To light the SU-3/SU-4 Gas Reset, if Flame Lockout Occurs 1. Turn the thermostat off, or turn the main power off Burner 1. -
Page 13: Burner Operation
Fig. 10 Side View of Front of Burner Optimal place for manifold readings. Loosen Screw and attach manometer. When commissioning the burner, make sure the gas control knob is in the ”ON” position. Install monometers at the inlet pressure tap and outlet pressure tap. Record the static incoming gas pressure. Note: When checking manifold pressure, do not subtract burner housing pressure during valve-on delay When the burner lights off, record the running incoming gas pressure;... - Page 14 2. Electricity Check burner wiring ____ 1. Check that 120VAC is coming into the burner ____ 2. Check that the burner is properly grounded using a ground wire ____ 3. Check the polarity to the burner is correct. (To check polarity: Set a multimeter to VAC. Touch L1 to one of the probe tips and ground to the other.
- Page 15 Use a combustion analyzer and record the readings below. BURNER OPERATION: Record the Readings at Steady State Draft over fire at steady state (should be Positive – refer to boiler manual) Natural Gas CO % = (8.5% to 10.0%) or O % = (5.0% to 3.5%) LP Gas CO % = (10.5% to 11.5%) or O...
- Page 16 of the flame tube. Adjust as necessary. Gas pressure is too high. Use manometer and readjust the pressures. Blocked Flue Check draft and clear flue of foreign materials. Pulsation during operation Burner is not correctly adjusted. Readjust with combustion analyzer. The burner is dirty.