Carrier 58CTA/CTX User Manual download pdf (Page 5)

80 / 27 C

/ 16 C

A06745

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

S US: 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

S CANADA: CSA B149.1--05 National Standard of Canada

Natural Gas and Propane Installation Code

(CAN/CSA--B149.1--05)

Step 2 — General Installation

S US: 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.)

S CANADA: 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

S US: Section 9.3 of the NFGC, NFPA 54/ ANSI Z223.1--2006

Air for Combustion and Ventilation

S CANADA: Part 8 of CAN/CSA--B149.1--05, Venting Systems

and Air Supply for Appliances

Step 4 — Duct Systems

S US 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

S US 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

S US: NFPA 54 / ANSI Z223.1--2006; chapters 5, 6, 7, and 8 and

National Plumbing Codes

S CANADA: CAN/CSA--B149.1--05 Parts 4, 5, and 6 and

Appendices A, B, E and H.

Step 7 — Electrical Connections

S US: National Electrical Code (NEC) ANSI/NFPA 70--2008

S CANADA: Canadian Electrical Code CSA C22.1

Step 8 — Venting

S US: NFGC; NFPA 54 / ANSI Z223.1--2006 chapters 12 and 13

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

ELECTROSTATIC DISCHARGE (ESD)

PRECAUTIONS PROCEDURE

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.

CAUTION

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 fur-

nace chassis which is close to the control. Tools held in a

person’s hand during grounding will be satisfactorily dis-

charged.

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 un-

grounded 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 (ungroun-

ded) furnaces.

6. Before removing a new control from its container, dis-

charge your body’s electrostatic charge to ground to pro-

tect the control from damage. If the control is to be in-

stalled 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 before

touching ungrounded objects.

7. An ESD service kit (available from commercial sources)

mayalsobeusedtopreventESDdamage.

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