Combustion And Ventilation Air; Gas Piping And Gas Pipe Pressure Testing; Electrical Connections; Venting - International comfort products R8MXL Installation Instructions Manual

Figure 3 − Return Air Temperature
General Installation
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Current edition of the NFGC and the NFPA 90B. For
copies, contact the National Fire Protection Associ-
ation Inc., Batterymarch Park, Quincy, MA 02269;
(www.NFPA.org) or for only the NFGC, contact the
American Gas Association, 400 N. Capitol Street,
N.W., Washington, DC 20001 (www.AGA.org).

Combustion and Ventilation Air

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NFGC NFPA 54/ANSI Z223.1−2012 Section 9.3, Air
for Combustion and Ventilation.
Duct Systems
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Air Conditioning Contractors Association (ACCA)
Manual D, Sheet Metal and Air Conditioning Con-
tractors National Association (SMACNA), or Americ-
an Society of Heating, Refrigeration, and Air Condi-
tioning Engineers (ASHRAE) 2005 Fundamentals
Handbook Chapter 35 or 2004 HVAC Systems and
Equipment Handbook Chapters 9 and 16.
Acoustical Lining and Fibrous Glass Duct
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Current edition of SMACNA and NFPA 90B as
tested by UL Standard 181 for Class I Rigid Air
Ducts

Gas Piping and Gas Pipe Pressure Testing

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NFGC NFPA 54/ANSI Z223.1−2012; chapters 5, 6,
7, and 8 and National Plumbing Codes.

Electrical Connections

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National Electrical Code (NEC) NFPA 70−2011.

Venting

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NFGC NFPA 54 / ANSI Z223.1−2012; Chapters 12
and 13.
441 01 6100 01
80_F/27_C
FURNACE RELIABILITY HAZARD
Improper installation or service of furnace may cause
premature furnace component failure.
Electrostatic
components.
Precautions Procedure listed below during furnace
installation and servicing to protect the furnace
60_F/16_C
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
A06745
by putting the furnace, the control, and the person at the
same electrostatic potential.
Specifications are subject to change without notice.
ELECTROSTATIC DISCHARGE (ESD)
PRECAUTIONS PROCEDURE
CAUTION
!
discharge
Follow the
1. Disconnect all power to the furnace. Multiple discon-
nects 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.
2. Firmly touch the clean, unpainted, metal surface of the
furnace chassis which is close to the control. Firmly
touch the clean, unpainted, metal surface of the fur-
nace chassis which is close to the control. Tools held in
a person's hand during grounding will be satisfactorily
discharged.
3. After touching the chassis, you may proceed to service
the control or connecting wires as long as you do noth-
ing to recharge your body with static electricity (for ex-
ample; DO NOT move or shuffle your feet, do not touch
ungrounded objects, etc.).
4. If you touch ungrounded objects (and recharge your
body with static electricity), firmly touch a clean, un-
painted metal surface of the furnace again before
touching control or wires.
5. Use this procedure for installed and uninstalled (un-
grounded) furnaces.
6. Before removing a new control from its container, dis-
charge 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 fur-
nace. Put all used and new controls into containers be-
fore touching ungrounded objects.
7. An ESD service kit (available from commercial
sources) may also be used to prevent ESD damage.
can affect electronic
Electrostatic Discharge
5