Columbia EMG-31 120, EMG-31 140, EMG-31 160 Instructions Manual
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Available in Natural Gas & Propane
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Rev 12012
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PO Box 1070 • Pottstown, PA 19464 • Tel (610) 473-8457 • Fax (610) 367-6800
Website www.columbiaboiler.com • Email
Columbia Boiler Company
cbcsales@ptd.net
If you do not follow these instructions exactly, a fire or explosion
may result causing property damage, personal injury or loss of life
Safety Instructions - Read Before Installing & Operating Equipment
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A) This appliance does not have a pilot. It is equipped with an ignition device which automatically
lights the burner. Do not try to light the burner by hand.
B) Before operating equipment smell around the appliance area for gas. Be sure to smell next to the
floor because some gas (specifically L.P.) is heavier than air and will settle to the flo or.
C) If you smell gas:
1) Do not try to light any appliance
2) Do not touch any electric switch
3) Do not use any phone i n the building
4) Contact your gas supplier immediately using a ne i ghbor’s phone
5) Follow the gas supplier’ s instructions
D) Use only your hand to push in or turn the gas cont r ol knob. Never use too ls. If the knob will not
push in or turn by hand, don’t try to repair it, call a qualified service technician. Force or atte mpted
repair may result in afire or explosion.
E) Do not use appliance if any part has been under water. Immediately call a qualified service
technician to inspect the appliance and to replace any part of the control system and any gas control
which has been under w ater.
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Operating Instructions – Quick Reference
1) Read all instructio ns pr ior to operating equipment.
2) Set the thermostat to the lowest setting.
3) Turnoff all electric power to the appliance.
4) This device is equipped with an ignition devic e which
automatically lights the burner. Do not try to light the
burner by hand.
5) If the gas control knob is not in the “OFF” position, turn knob clockwise to the “OFF” position.
6) Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you
smell gas, stop immediately.
7) Turn gas control knob counter-clockwise to “ON”.
8) Turn on all electric power to the appliance.
9) Set the thermostat to the desired setting.
10) If the appliance does not operate, follow the instructions.
Turning Gas Off To Appliance – Quick Reference
1) Set the thermostat to lowest setting.
2) Turn off electric power to the appliance if service is to be performed.
3) To turn off gas to the appliance, turn the gas control knob clockwise to “OFF”.
Contents
Safety Instructions i
Product Features 1
Installation 3
Start Up 6
Maintenance 8
Trouble Shooting 9
Parts 12
Over fifty years of engineering and product development have gone into your new
Columbia boiler. Its quality and design are unsurpassed. Properly installed and
maintained, it will provide many years of efficient and dependable operation. Please
read this instruction manual carefully. The information contained within is designed
to help you maintain peak performance from your unit.
Product Features
• ASME Coded Boiler Registered with National Board
• Factory Mounted / Wired Burner and Controls
• Fully Insulated Heat Exchanger with Powder-Coated Cabinet
• Packaged with Standard Five Gallon per Minute Tankless Coil (Domestic Hot Water)
• Equipped with Triple Aquastat, Circulator, Temperature / Altitude Gauge and Gas Regulator
• Outfitted with Additional Orifices to Achieve a Variety of Heat Inputs
• Provided with a Lifetime Limited Warranty
EMG-31 120
EMG-31 140
EMG-31 160
Nat.
L.P.
Nat.
L.P.
Nat.
L.P.
Factory
Set
Factory
Set
Factory
Set
Factory
Set
Factory
Set
Factory
Set
AFUE
•
Input (Btu/Hr)* 120,000 140,000 160,000
IBR Heat Capacity (Btu/Hr) 88,000 101,000 114,000
Valve Capacity (Lbs/Hr) 160 160 160
Max Water Pressure (Psi) 30 30 30
Burner Model Carlin EZ-Gas Carlin EZ-Gas Carlin EZ-Gas
Fuel Type
Gas
Gas
Gas
Gas
Gas
Gas
Orifice Size 0.242” 11/64 0.250” 13/64 0.290” 7/32
Fuel Input Rate (Cfm) 1.95 0.79 2.28 0.95 2.60 1.06
Max. Inlet Pressure (“W.C.) 11” 11” 11” 11” 11” 11”
Min. Inlet Pressure (“W.C.) 5” 5” 5” 5” 5” 5”
Manifold Pressure (“W.C.) 3.5” 3.5” 3.5” 3.5” 3.5” 3.5”
Head Position
Air Shutter 31% 30% 45% 42% 65% 78%
Draft Over Fire (“W.C.) -0.02” -0.02” -0.010” -0.02” -0.005” -0.005”
Draft in Stack (“W.C.) -0.02” -0.02” -0.02” -0.015” -0.02” -0.02”
CO2 Reading 9.0% 11.0% 9.0% 11.0% 9.0% 11.0%
83.8% 83.8% 83.0% 83.0% 82.2% 82.2%
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