Carrier 48TC Instruction Manual download pdf (Page 15)

Units Without Factory--Installed Disconnect —

When installing units, provide a disconnect switch per

NEC (National Electrical Code) of adequate size.

Disconnect sizing data is provided on the unit informative

plate. Locate on unit cabinet or within sight of the unit per

national or local codes. Do not cover unit informative

plate if mounting the disconnect on the unit cabinet.

All Units —

All field wiring must comply with NEC and all local

codes. Size wire based on MCA (Minimum Circuit Amps)

on the unit informative plate. See Fig. 22 and the unit

label diagram for power wiring connections to the unit

power terminal blocks and equipment ground. Maximum

wire size is #2 ga AWG per pole.

Provide a ground--fault and short--circuit over--current

protection device (fuse or breaker) per NEC Article 440 (or

local codes). Refer to unit informative data plate for MOCP

(Maximum Over--current Protection) device size.

All field wiring must comply with the NEC and local

requirements.

All units except 208/230-v units are factory wired for the

voltage shown on the nameplate. If the 208/230-v unit is

to be connected to a 208-v power supply, the control

transformer must be rewired by moving the black wire

with the

-in. female spade connector from the 230--v

connection and moving it to the 200-v

-in. male

terminal on the primary side of the transformer. Refer to

unit label diagram for additional information. Field power

wires will be connected line--side pressure lugs on the

power terminal block or at factory--installed option

non--fused disconnect.

NOTE: Check all factory and field electrical connections

for tightness.

Convenience Outlets —

ELECTRICAL OPERATION HAZARD

Failure to follow this warning could result in personal

injury or death.

Units with convenience outlet circuits may use

multiple disconnects. Check convenience outlet for

power status before opening unit for service. Locate

its disconnect switch, if appropriate, and open it.

Lock--out and tag--out this switch, if necessary.

WARNING

Two types of convenience outlets are offered on 48TC

models: Non--powered and unit--powered. Both types

provide a 125--volt GFCI (ground--fault

circuit--interrupter) duplex receptacle rated at 15--A

behind a hinged waterproof access cover, located on the

end panel of the unit. See Fig. 24.

NOTE: Unit powered convenience outlets are not

available as factory installed options for single phase (--3

voltage code) models.

Convenience

Outlet

GFCI

Pwd-CO

Fuse

Switch

Pwd-CO

Transformer

Control Box

Access Panel

C08128

Fig. 24 -- Convenience Outlet Location

Installing Weatherproof Cover: A weatherproof

while-in-use cover for the factory-installed convenience

outlets is now required by UL standards. This cover

cannot be factory-mounted due its depth; it must be

installed at unit installation. For shipment, the

convenience outlet is covered with a blank cover plate.

The weatherproof cover kit is shipped in the unit’s control

box. The kit includes the hinged cover, a backing plate

and gasket.

DISCONNECT ALL POWER TO UNIT AND

CONVENIENCE OUTLET. LOCK--OUT AND TAG--OUT

ALL POWER.

Remove the blank cover plate at the convenience outlet;

discard the blank cover.

Loosen the two screws at the GFCI duplex outlet, until

approximately

-in (13 mm) under screw heads are

exposed. Press the gasket over the screw heads. Slip the

backing plate over the screw heads at the keyhole slots

and align with the gasket; tighten the two screws until

snug (do not over-tighten).

Mount the weatherproof cover to the backing plate as

shown in Fig. 25. Remove two slot fillers in the bottom of

the cover to permit service tool cords to exit the cover.

Check for full closing and latching.

RECEPTACLE

NOT INCLUDED

COVER – WHILE-IN-USE

WEATHERPROOF

BASE PLATE FOR

GFCI RECEPTACLE

C09022

Fig. 25 -- Weatherproof Cover Installation

48TC

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 47 48

Comments to this Manuals

No comments

Carrier 48TC Instruction Manual Page 15

Comments to this Manuals

Related products and manuals for Split-system air conditioners Carrier 48TC