Carrier BS1, BS2, BW1, BW3, BW2 Owner's Manual
WARNING: If the information in this manual
is not followed exactly, a fire or explosion may
result causing property damage, personal in-
jury or loss of life.
— Do not store or use gasoline or other flam-
mable vapors and liquids in the vicinity of
this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; 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.
— Installation and service must be performed
by a qualified installer, service agency or
the gas supplier.
Congratulations! Your new gas-fired indoor boiler is an excellent choice and sound investment in home heating comfort. Your modern
boiler represents the latest in engineering development and is the culmination of many years of e xperience from one of the most reputable
manufacturers of residential hydronic heating systems.
Not only is your new boiler one of the most energy-efficient heating systems you can buy today, it is also one of the safest and most
dependable. With only minimal care, your new boiler will continue to deliver money-saving home comfort and enjoyment for many
years to come. Spend just a few minutes with this manual to learn the operation of your new boiler and the small amount of maintenance
it takes to help keep it operating at peak efficiency.
MODEL BW3 MODEL BW1 AND BW2 MODEL BS1 AND BS2
INDUCED-COMBUSTION WATER BOILERS STEAM BOILERS
WATER BOILER
1 2 3
BOILER IDENTIFICATION
For your convenience, record the product and serial numbers of your new boiler on the form below. Should you ever require service,
you will have ready access to the information needed by the service representative.
Product No.
Serial No.
Date Installed
Dealer Name
Address
City
State Zip
Telephone
2
8
4
7
6
MODEL BW3
INDUCED-COMBUSTION W A TER BOILER
9
Controls—limit, transformer, and relay
2
1
5
3
1
Inducer blower
2
Water circulator
3
Spark generator (IID system only)
4
Pressure switch
5
Combination gas valve, regulator, and shut-off cock
6
Burners and pilot (inside access door)
7
Relief valve
8
Gage
9
4
7
4
3
Controls—limit, transformer, and relay
1
Water circulator
2
Gage
3
Relief valve
4
Combination gas valve, regulator, and shut-off cock
5
Burners and pilot (inside access door)
6
Vent damper
7
9
8
2
2
1
6
5
MODEL BW1 AND BW2
6
1
7
Pressure limit control
1
Spark generator (IID system only)
2
Low water cutoff
3
Burners and pilot (inside access door)
4
WATER BOILERS
5
Combination gas valve, regulator, and shut-off cock
4
3
5
MODEL BS12 AND BS2
STEAM BOILERS
5
Gage
6
Sight glass
7
Relief valve
8
Vent damper
9
6
3
IMPORTANT FACTS ABOUT YOUR NEW BOILER
Your boiler must have air for combustion and ventilation. Do not enclose in an airtight room or enclosure.
T o minimize the possibility of serious personal injury, fire, damage to your boiler, or improper operation, car efully f ollow these safety
rules:
1. Keep the area around your boiler free of combustible materials, gasoline, and other flammable liquids and v apors. (Fig 8)
7 8
2. Do not cover the boiler , store trash or debris near it, or in any way block the flow of fresh air to the unit. (Fig 7)
3. A boiler installed in an insulated space must be kept free and clear of insulating material. Examine the boiler area when installing
or adding more insulation. Some materials may be combustible.
4. Combustion air must be clean and uncontaminated with chlorine or flourine (halogenated hydrocarbons). These compounds are
present in many products around the home such as water softener salts, laundry bleaches, detergents, adhesives, paints, varnishes,
paint strippers, waxes, and plastics.
Make sure the combustion air for your boiler does not contain any of these compounds. Keep containers tightly closed. During
remodeling or construction, be sure the air around your boiler is fresh and uncontaminated. If these compounds are burned in your
boiler, the sections and metal vent system may deteriorate.
5. Improper installation, adjustment, alteration, service, maintenance, or use can cause carbon monoxide poisoning, explosion, fire,
electric shock, or other occurrences which may injure you or damage your property. Consult a qualified installer, service agency, or
the gas supplier for information or assistance.
6. Do not use this 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 water.
ST ARTING YOUR BOILER
Your boiler is equipped with 1 of the 2 following types of gas control systems:
1.
The manual ignition system has a continuously burning pilot flame. This pilot is manually ignited with a match and continues to
burn.
2.
The automatic intermittent system does not ha v e a continuously burning pilot flame. This pilot is automatically lit by an electric
sparking device each time the thermostat “calls for heat.”
Follow these important safeguards:
1. Never attempt to manually light the pilot on a boiler that has an intermittent ignition system with a match or other source of flame.
2. Read and follow the lighting instructions on the rating plate (located on the right side of the boiler), especially the item that reads
as follows:
Wait 5 minutes to clear out any gas. Then smell for gas, including near the floor, If you smell gas, STOP! Follow “B” in the safety
information located on the boiler access door. If you don’t smell gas, go to the next step.
3. If a suspected malfunction occurs with your gas control system, such as the pilot does not light when it should, refer to the shutdown
procedures in the next section to turn off your system, then call your dealer as soon as possible.
!
WARNING: Should overheating occur, or the gas valve fail to shut off the gas supply, turn off the manual gas valve
to the boiler BEFORE turning off the electrical supply.
MANUAL PILOT IGNITION
1. Set room thermostat to the lowest temperature setting. (Fig 9)
2. Turn the electrical supply to the boiler to OFF. (Fig 10)
3. Remove burner access door. (Fig 11)
4
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