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INSTALLATION INSTRUCTIONS
Safety
US: Current edition of the National Fuel Gas Code
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(NFGC) NFPA 54/ANSI Z223.1 and the Installation
Standards, Warm Air Heating and Air Conditioning
Systems ANSI/NFPA 90B
A manufactured (Mobile) home installation must
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conform with the Manufactured Home Construction
and Safety Standard, Title 24 CFR, Part 3280, or
when this standard is not applicable, the Standard for
Manufactured Home Installation (Manufactured Home
Sites, Communities, and Set-Ups),ANSI/NCS A225.1,
and/or CAN/CSA-Z240, MH Series Mobile Homes
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CANADA: Current edition of the National Standard of
Canada, Natural Gas and Propane Installation Code
(NSCNGPIC) CAN/CSA B149.1
General Installation
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US: Current edition of the NFGC and the NFPA 90B.
For copies, contact the National Fire Protection
Association Inc., Batterymarch Park, Quincy, MA
02269; or for only the NFGC contact the American
Gas Association, 400 N. Capitol, N.W., Washington
DC 20001.
CANADA: Current edition of the NSCNGPIC. For a
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copy, contact Standard Sales, CSA International, 178
Rexdale Boulevard, Etobicoke (Toronto), Ontario,
M9W 1R3, Canada.
Combustion and Ventilation Air
US: Current edition of Section 9.3 of the NFPA
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54/ANSI Z223.1, Air for Combustion and Ventilation
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CANADA: Current edition of Part 8 of the CAN/CSA
B149.1, Venting Systems and Air Supply for
Appliances
Duct Systems
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US and CANADA: Current edition of the Air
Conditioning Contractors Association (ACCA) Manual D,
Sheet Metal and Air Conditioning Contractors National
Association (SMACNA), or American Society of Heating,
Refrigeration, and Air Conditioning Engineers
(ASHRAE).
Acoustical Lining and Fibrous Glass
Duct
US and CANADA: Current edition of SMACNA, NFPA
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90B as tested by UL Standard 181 for Class I Rigid Air
Ducts
Gas Piping and Gas Pipe Pressure
Testing
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U.S.A.: Current edition of the NFPA 54/ANSI Z223.1,
NFGC; Chapters 5, 6, 7, and 8 and national plumbing
codes.
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CANADA: Current edition of the CAN/CSA--B149.1,
Parts 4, 5, 6 and 9.
In the state of Massachusetts:
This product must be installed by a licensed plumber or
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gas fitter.
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When flexible connectors are used, the maximum
length shall not exceed 36--in. (914 mm).
When lever type gas shutoffs are used they shall be
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T--handle type.
The use of copper tubing for gas piping is not
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approved by the state of Massachusetts.
440 01 4104 07
Electrical Connections
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Condensate Drain Connection
US: Current edition of the National Standard Plumbing
Code, Section 8.7.
Canada: Current edition of the National Plumbing Code of
Canada in Canada.
Electrostatic Discharge (ESD)
Precautions Procedure
FURNACE RELIABILITY HAZARD
Failure to follow this caution may result in unit component
damage.
Electrostatic discharge can affect electronic components. Take
precautions during furnace installation and servicing to protect
the furnace electronic control. Precautions will prevent
electrostatic discharges from personnel and hand tools which
are held during the procedure. These precautions will help to
avoid exposing the control to electrostatic discharge by putting
the furnace, the control, and the person at the same
electrostatic potential.
1.
2.
3.
4.
5.
6.
7.
Specifications subject to change without notice.
Gas Furnace: N9MSB
U.S.A.: Current edition of the National Electrical Code
(NEC) NFPA 70
CANADA: Current edition of the Canadian Electrical
Code CSA C22.1
CAUTION
!
Disconnect all power to the
disconnects may be required. DO NOT TOUCH THE
CONTROL OR ANY WIRE CONNECTED TO THE
CONTROL PRIOR TO DISCHARGING YOUR BODY'S
ELECTROSTATIC CHARGE TO GROUND.
Firmly touch the clean, unpainted, metal surface of the
furnace chassis which is close to the control. Tools held
in a person's hand during grounding will be satisfactorily
discharged.
After touching the chassis, you may proceed to service
the control or connecting wires as long as you do nothing
to recharge your body with static electricity (for example;
DO NOT move or shuffle your feet, do not touch
ungrounded objects, etc.).
If you touch ungrounded objects (and recharge your
body with static electricity), firmly touch a clean,
unpainted metal surface of the furnace again before
touching control or wires.
Use this procedure for installed and uninstalled
(ungrounded) furnaces.
Before removing a new control from its container,
discharge your body's electrostatic charge to ground to
protect the control from damage. If the control is to be
installed in a furnace, follow items 1 through 4 before
bringing the control or yourself in contact with the
furnace. Put all used and new controls into containers
before touching ungrounded objects.
An ESD service kit (available from commercial sources)
may also be used to prevent ESD damage.
furnace. Multiple
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