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58SU0A: Installation, Start-up, Operating and Service and Maintenance Instructions
Fig. 2 – Clearances to Combustibles
Fig. 3 – Return Air Temperature
CODES AND STANDARDS
Follow all national and local codes and standards in addition to these
instructions. The installation must comply with regulations of the
serving gas supplier, local building, heating, plumbing, and other codes.
In absence of local codes, the installation must comply with the national
codes listed below and all authorities having jurisdiction.
In the United States, follow all codes and standards for the following:
Safety
• USA: Current edition of National Fuel Gas Code (NFGC) NFPA
54/ANSI Z223.1 and the Installation Standards, Warm Air Heating
and Air Conditioning Systems ANSI/NFPA 90B
General Installation
• Current edition of the NFGC and the NFPA 90B. For copies, contact
the National Fire Protection Association 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
• Current edition of NFGC NFPA54/ANSI Z223.1 Section 9.3, Air for
Combustion and Ventilation.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Duct Systems
• Air Conditioning Contractors Association (ACCA) Manual D, Sheet
Acoustical Lining and Fibrous Glass Duct
• Current edition of SMACNA and NFPA 90B as tested by UL Standard
Gas Piping and Gas Pipe Pressure Testing
• Current edition of NFGC NFPA54/ANSI Z223.1; chapters 5, 6, 7, and
Electrical Connections
• Current edition of National Electrical Code (NEC) NFPA 70.
Venting
• Current edition of NFGC NFPA 54 / ANSI Z223.1; Chapters 12 and
A190402
FURNACE RELIABILITY HAZARD
Max 85ºF/ 29ºC
Improper installation or service of furnace may cause premature
furnace component failure.
Electrostatic discharge can affect electronic components. Follow the
Electrostatic Discharge Precautions Procedure listed below 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
Min 60ºF / 16ºC
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. Disconnect all power to the furnace. Multiple disconnects maybe
A02055
2. Firmly touch the clean, unpainted, metal surface of the furnace
3. After touching the chassis, you may proceed to service the control
4. If you touch ungrounded objects (and recharge your body with
5. Use this procedure for installed and uninstalled (ungrounded)
6. Before removing a new control from its container, discharge your
4
Metal and Air Conditioning Contractors National Association
(SMACNA), or American Society of Heating, Refrigeration, and Air
Conditioning Engineers (ASHRAE) 2005 Fundamentals Handbook
Chapter 35 or 2004 HVAC Systems and Equipment Handbook
Chapters 9 and 16.
181 for Class I Rigid Air Ducts
8 and National Plumbing Codes.
13.
ELECTROSTATIC DISCHARGE (ESD)
PRECAUTIONS PROCEDURE
CAUTION
!
required. DO NOT TOUCH THE CONTROL OR ANY WIRE
CONNECTED TO THE CONTROL PRIOR TO DISCHARGING
YOUR BODY'S ELECTROSTATIC CHARGE TO GROUND.
chassis which is close to the control. 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.
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.).
static electricity), firmly touch a clean, unpainted metal surface of
the furnace again before touching control or wires.
furnaces.
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.
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