Bryant 120 Codes And Standards, Electrostatic Discharge Esd Precautions Procedure, Safety, 312A

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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 and Canada, follow all codes and standards for the following:

Step 1 — Safety

SUS: National Fuel Gas Code (NFGC) NFPA 54-2006/ANSI Z223.1-2006 and the Installation Standards, Warm Air Heating and Air Conditioning Systems ANSI/NFPA 90B

SCANADA: CSA B149.1-00 National Standard of Canada Natural Gas and Propane Installation Code (CAN/CSA-B149.1-05)

Step 2 — General Installation

SUS: 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.)

SCANADA: CAN/CSA-B149.1-05. For a copy, contact Standard Sales, CSA International, 178 Rexdale Boulevard, Etobicoke (Toronto), Ontario, M9W 1R3 Canada Step

Step 3 — Combustion and Ventilation Air

SUS: Section 8.3 of the NFGC, Air for Combustion and Ventilation

SCANADA: Part 7 of CAN/CSA-B149.1-05, Venting Systems and Air Supply for Appliances

Step 4 — Duct Systems

SUS and CANADA: 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) 2001 Fundamentals Handbook Chapter 34 or 2000 HVAC Systems and Equipment Handbook Chapters 9 and 16.

Step 5 — Acoustical Lining and Fibrous Glass Duct

SUS and CANADA: current edition of SMACNA and NFPA

90B as tested by UL Standard 181 for Class I Rigid Air Ducts

Step 6 — Gas Piping and Gas Pipe Pressure Testing

SUS: NFGC; chapters 5, 6, and 7 and National Plumbing Codes

SCANADA: CAN/CSA-B149.1-05 Parts 4, 5, 6 and 9 and Appendices A, B, E and H.

Step 7 — Electrical Connections

SUS: National Electrical Code (NEC) ANSI/NFPA 70-2006 S CANADA: Canadian Electrical Code CSA C22.1

Step 8 — Venting

SUS: NFGC; chapters 12 and 13

SCANADA: CAN/CSA-B149.1-05 Part 8 and Appendix C

ELECTROSTATIC DISCHARGE (ESD)

PRECAUTIONS PROCEDURE

!CAUTION

FURNACE RELIABILITY HAZARD

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 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 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. 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 nothing to recharge your body with static electricity (for example; 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, unpainted metal surface of the furnace again before touching control or wires.

5.Use this procedure for installed and uninstalled (ungrounded) furnaces.

6.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.

7.An ESD service kit (available from commercial sources) may also be used to prevent ESD damage.

312A

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