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Carrier WEATHERMAKER 8000 58ZAV User Manual

Page 11

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The cabinet MUST have an uninterrupted or unbroken ground
according to NEC ANSI/NFPA 70-1999 and Canadian Elec-
trical 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. Failure to follow this
warning could result in electrical shock, fire, or death.

24-V WIRING
Make field 24-v connections at the 24-v terminal strip. (See Fig.
14.) Connect terminal Y as shown in Fig. 15 for proper operation
in cooling mode. Use AWG No. 18 color-coded wire only.
The 24-v circuit contains an automotive-type, 3-amp fuse located
on the main control. Any direct shorts during installation, service,
or maintenance could cause this fuse to blow. If fuse replacement
is required, use ONLY a 3-amp fuse of identical size.

ACCESSORIES

1. Electronic Air Cleaner (EAC)

Table 6—Electrical Data

UNIT SIZE

VOLTS—

HERTZ—

PHASE

OPERATING VOLTAGE RANGE

MAXIMUM

UNIT AMPS

MINIMUM

WIRE GAGE

MAXIMUM WIRE

LENGTH FT‡

MAXIMUM

FUSE OR CKT BKR

AMPS†

Maximum*

Minimum*

050-08

115—60—1

127

104

6.6

14

42

15

050-12

115—60—1

127

104

8.1

14

34

15

070-08

115—60—1

127

104

6.7

14

42

15

070-12

115—60—1

127

104

8.4

14

33

15

096-12

115—60—1

127

104

9.2

14

30

15

096-16

115—60—1

127

104

10.2

14

28

15

115-16

115—60—1

127

104

10.1

14

28

15

115-20

115—60—1

127

104

13.3

12

33

20

115-22

115—60—1

127

104

15.2

12

29

20

135-20

115—60—1

127

104

14.3

12

31

20

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

† Time-delay type is recommended.

‡ Length shown is as measured 1 way along wire path between unit and service panel for maximum 2 percent voltage drop.

Fig. 12—Downflow Filter Arrangement

A88486

RETURN-AIR

PLENUM

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AIRFLOW

ACCESS DOOR

INSTALLATION

POSITION

OF FILTERS

Table 5—Maximum Capacity of Gas Pipe *

NOMINAL IRON

PIPE SIZE

(IN.)

INTERNAL

DIAMETER

(IN.)

LENGTH OF PIPE (FT)

10

20

30

40

50

1/2

0.622

175

120

97

82

73

3/4

0.824

360

250

200

170 151

1

1.049

680

465

375

320 285

1-1/4

1.380

1400

950

770

660 580

1-1/2

1.610

2100 1460 1180 990 900

* Cubic ft of gas per hr for gas pressures of 0.5 psig (14-in. wc) or less, and a

pressure drop of 0.5-in. wc (based on a 0.60 specific gravity gas). Ref: Table

10-2 NFPA 54/ANSI Z223.1-1999.

Fig. 13—Typical Gas Pipe Arrangement

A89414

GAS

SUPPLY

MANUAL

SHUTOFF

VALVE

(REQUIRED)

SEDIMENT

TRAP

UNION

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