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The burner shall be used only with NATURAL GAS or LP GAS as specified on the nameplate.
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 phone in your building.
• Immediately call your gas supplier from a neighbor's 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.
• 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
Massachusetts Plumbing Board G1-0903-40:09/03/2004
1528 Rocky Point Road, Middle Island, NY 11953
Manual for: SU-2A Gas Burner
50,000 BTU/H to 250,000 BTU/H
WHAT TO DO IF YOU SMELL GAS
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NYC MEA # 382-03-E
Manufactured by Heat Wise, Inc.
–
rev 2004-2
1
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Table of Contents
Related Manuals for Heat Wise SU-2A
Summary of Contents for Heat Wise SU-2A
- Page 1 Manual for: SU-2A Gas Burner The burner shall be used only with NATURAL GAS or LP GAS as specified on the nameplate. Warning: If the following instructions are not followed exactly, a fire or explosion may result, causing property damage, personal injury or death.
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Page 2: Burner Description
- Gas Valve: VR8205A 2008 or VR 8305 P with step opening (special applications). The SU-2A Gas Burner is a fully automatic, flame retention burner and is suitable for combustion of natural gas or LP. Changing orifices alters the firing rate. The combustion air can... -
Page 3: Air For Combustion
It is important to allow adequate clearance around the appliance for servicing and proper operation of the burner. CONVERTING COAL TO GAS... -
Page 4: Chimney Requirements
CHIMNEY REQUIREMENTS The chimney should extend at least 3’ above a flat roof or the highest roof ridge (see Fig. 2) and be free in a radius of 30’ of objects such as tree limbs, other buildings, etc, which may cause a down draft. -
Page 5: Installing The Burner
Seal off any free openings with high temperature cement. Refer to the pictures below to determine which flange is installed on the SU-2A Chart 3: Vent Pipe Sizing Draft Hood and Flue Pipe Sizes 5”... - Page 6 3 o’clock position stud). Tighten all the nuts equally. Make sure that the allen screws are backed out, to allow enough clearance. Then, insert the SU-2A 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 7 2. A 1/8” plugged NPT tapping for gas pressure measurement preferably on the manual shut off valve (as shown or anywhere between the gas valve and the shut off value). Note: The manual shut-off valve and tapping are NOT part of the SU-2A Gas Burner. Please make sure you conform to local and state codes.
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Page 8: Orifice Installation
Otherwise, it is better to use a double swing draft regulator, listed by CSA or U.L. When the burner is used as a conversion burner, draft over fire should be maintained as –0.02” W.C. by adjusting the regulator when the burner is fired. -
Page 9: Electric Wiring
(like the thermostat) should be treated as 24-Volt wiring. The burner has its own 24 Volt AC power supply. Do not add a 24 Volt AC transformer for the burner wiring. Do not use the 24 Volt transformer found on the burner to power other items in the heating system, such spill switches, etc. - Page 10 Within 4 seconds, the flame should be established and proved. The spark will shut off and the control will hold power to the gas valve until the limits open and the burner stops firing. If the flame is not established, the blower motor continuously runs.
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Page 11: Lighting Instructions
Keep the observation port of the boiler or furnace open. Follow the instructions on the nameplate of the burner to turn it on. Follow the sequence of operations for the control (see pages 9 and 10). Use a combustion analyzer and record the readings below. - Page 12 0.3” W.C. Caution: If this is the case, the flange and the combustion chamber should be completely sealed. This pressure firing decreases as the firing rate increases. See Graph 1 . Note: the burner should be adjusted while it is firing.
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Page 13: Troubleshooting
Trouble shooting: There are three factors to operate the gas burner properly: 1. Electricity {(main Power 120V/60 Hz /1 Ph)( secondary 24V)} 2. Gas flow (Incoming pressure should be 10” w.c. with proper gas line without pressure drop during burner operation). - Page 14 PART Blast Tube Flange Gasket Adjustable Flange Front piece - Housing Rear piece – Housing Fan Wheel 1/6 HP PSC Blower motor Shielding Plate Housing Outside Air Boot Silencer Air Regulation Plate Air Damper Air Regulation Adjustment screw Adjustment Screw – Nozzle Line...
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Page 15: Maintenance Instructions
2. The user should do periodic visual checks of the burner and the flame. 3. Laundry lint or dog and/or cat hairs should not go inside the blower. If they are seen, they should be removed after disconnecting the power to the burner and cover parts should be installed before starting the burner.