Carrier 58TUA Manuel d'utilisateur télécharger pdf (Page 7)

Table 5—Electrical Data

UNIT SIZE

VOLTS-

HERTZ-

PHASE

OPERATING

VOLTAGE RANGE

MAX

UNIT

AMPS

MIN

WIRE

GAGE

MAX WIRE

LENGTH (FT)*

MAX FUSE OR

HACR-TYPE

CKT BKR AMPS*

Max* Min*

040-08

115—60—1

127 104

6.1

45 15

040-12 115—60—1

127

104

8.5

33 15

060-08 115—60—1

127 104

6.1

14 46 15

060-12 115—60—1

127

104

8.9

14 32

080-14

115—60—1 ,

127

104 9.2

31 15

080-16

115—60—1

127 104

10.6

100-12

115—60—1

127 104 8.2

14 34 15

100-16

115—60—1

127

104

10.3

100-20

115—60—1

127

104

14.6

12 30 20

120-16

115—60—1

127

104

10.3

120-20 115—60—1

127 104

13.5

140-20 115—60—1

127

104

14.2

12 31 20

* Permissible limits of the voltage range at which the unit will operate satisfactorily.

tTime-delay fuse is recommended.tLength shown is as measured 1 way along wire path between unit and service panel for maximum 2 percent voltage drop.

installed immediately upstream of the gas supply connection to the

furnace and downstream of the manual shut-off valve. Place

ground joint union between the gas control manifold and the

manual shut-off valve.

A WARNING

Use the proper length of pipes to avoid stress on the gas

control manifold. A failure to follow this warning can cause

a gas leak resulting in a fire, explosion, personal injury, or

death.

A CAUTION

Use a backup wrench at the furnace gas control when

connecting the gas pipe to the furnace to avoid damaging gas

controls or manifold.

A WARNING

Never purge a line into a combustion chamber. Never use

matches, candles, flame, or other sources of ignition for the

purpose of checking leakage. Use a soap-and-water solution

to check for leakage. A failure to follow this warning can

cause a fire, explosion, personal injury, or death.

Step 6—ELECTRICAL CONNECTIONS

115-V WIRING

Refer to the unit rating plate or Table 5 for equipment electrical

requirements. The control system requires an earth ground for

proper operation.

A CAUTION

Do not connect aluminum wire between disconnect switch

and furnace. Use only copper wire.

Make all electrical connections in accordance with the National

Electrical Code ANSI/NFPA 70-1993 and local codes or ordi

nances that might apply. For Canadian installations, all electrical

connections must be made in accordance with CSA C22.1 Cana

dian Electrical Code, or authorities having jurisdiction.

A WARNING

The cabinet MUST have an uninterrupted or unbroken ground

according to National Electrical Code, ANSI/ NFPA 70-1993

and Canadian Electrical Code, CSA C22.1 or local codes to

minimize personal injury if an electrical fault should occur.

This may consist of electrical wire or conduit approved for

electrical ground when installed in accordance with existing

electrical codes. Do not use gas piping as an electrical ground.

The auxiliary junction box can be moved to the right-hand side of

the furnace when a right-side power supply is desired. Remove the

2 screws holding the auxiliary junction box. Mount the junction

box on the right-hand side of the furnace. The blower door

interlock switch must also be moved to the right side of the furnace

due to the length of the wiring harness. (Holes have been provided

in casing). When moved, tuck the wiring harness behind the clip

provided to keep extra wire lengths out of the way.

NOTE: Proper polarity must be maintained for 115-v wiring. If

polarity is incorrect, the furnace control will flash code 02 on the

status LED and prevent heating operation.

24-V WIRING

Make field 24-v connections at the 24-v terminal strip. (See Fig.

10.) Connect terminal Y as shown in Fig. 8 or 9 for proper cooling

operation. Use only AWG No. 18 or larger, color coded copper

thermostat wire.

The 24-v circuit contains an automotive-type, 3-amp fuse located

on the main control. Any 24-v electrical shorts during installation,

service, or maintenance could cause this fuse to blow. If fuse

replacement is required, use ONLY a 3-amp fuse. The control will

flash code 24 when the fuse needs replacement.

ACCESSORIES

1. Electronic air cleaner (EAC)

A terminal block (EAC-1 and EAC-2) is provided for elec

tronic air cleaner connection. (See Fig. 10.) The terminals are

energized with 115v, 1-amp maximum during blower motor

operation.

2. Humidifier (HUM)

Screw terminals (HUM and COM) are provided for 24-v

humidifier connection. The terminals are energized with 24v,

0.5-amp maximum when the gas valve is energized.

Step 7— VENTING

For conventional Category I vertical venting, refer to the enclosed

Installations Instructions. GAMA venting table for category I

furnaces, and QUIK'VENT™ table for Category I fan-assisted

1 2 3 4 5 6 7 8 9 10 11 12 ... 17 18

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Carrier 58TUA Manuel d'utilisateur Page 7

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