Carrier 06E, Installation, Start-Up And Service Instructions Manual

6

Fig. 6 — Control Circuit Wiring for 06E/07E Units

AUX

—

Auxiliary

C

—

Compressor Contactor

C1

—

Compressor Contactor
(XL start and first step of PW start)

C2

—

Compressor Contactor
(PW second step)

CH

—

Crankcase Heater

CHR —

Crankcase Heater Relay

CR

—

Control Relay

DTS

—

Discharge Temperature Sensor

DX

—

Direct Expansion

FU

—

Fuse

HPS

—

High-Pressure Switch

LLS

—

Liquid Line Solenoid Valve

LPS

—

Low-Pressure Switch

Terminal Block Connector

Unmarked Terminal

Marked Terminal

Factory Wiring

Field Control Wiring
To indicate common potential only;
not to represent wiring.

Splice

NOTES:

1. Factory wiring is in compliance with NEC. Any field modifications

or additions must be in compliance with all applicable codes. Use
copper, copper-clad aluminum for field power supply only.

2. Field power supply wiring must be 75 C minimum.
3. Compressor thermally protected. Three-phase motors are pro-

tected against primary single-phasing condition.

4. Pilot duty control must be field supplied. Minimum contact rating

must be 25 va.

5. 60 Hz units have 120 volt control circuit. 50 Hz units have 230 volt

control circuit. A separate source of supply at the correct voltage
must be field supplied through a fused disconnect device with a

maximum rating of 15 A to TB2 connections 

 (Hot Side)

and  

(Neutral).

6. Open control circuit disconnect switch for servicing only. Discon-

nect must remain closed for crankcase heater to operate.

7. A transformer of the following rating may be field supplied for

60 Hz units: 350 va.

8. Transformer must be fused and grounded per applicable codes.
9. If any of the original wiring furnished must be replaced, it must be

replaced with 90 C wire or its equivalent.

10. Wiring is shown for single pumpout control. Single pumpout

control should not be used on direct-expansion (DX) cooler appli-
cations (see lower diagram for wiring when applied with DX
cooler).

L1

L2

M1

—

Evaporator Fan or
Chilled Water Pump

M2

—

Cooling Tower Pump

M3

—

Cooling Tower Fan

NEC —

National Electrical Code

OPS —

Oil-Pressure Switch

POR —

Pumpout Relay

PW

—

Part Wind

SW

—

Start-Stop-Reset Switch

TB

—

Terminal Block

TDR

—

Time Delay Relay

TM

—

Timer Motor

TR

—

Timer Relay

XL

—

Across-the-Line

LEGEND