Installation

Figure 10 Three-phase, 3-5 ton model schematic, typical

Conductors Field-Supplied

(See Note 5)

EVAPORATOR UNIT

 

 

 

OUTDOOR CONDENSING MODULE

 

 

 

 

 

 

 

 

 

 

Unit Alarm

3

3

BL

 

 

 

 

 

 

 

Input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connection

 

 

 

 

 

 

 

 

 

 

24V Power

2

2

W

 

 

HP1

 

BK

C1

27,29,30

Supply

 

 

 

 

 

 

From Unit

 

 

 

 

 

 

 

 

 

 

Min 40VA

 

 

 

 

 

 

 

 

BR

 

 

 

 

 

 

 

 

 

 

 

HGBP Signal

4

4

 

 

 

 

 

 

 

 

Output

BR See Note 6

 

 

 

 

HG1

27

Connection

1

1

 

 

 

 

24V Ground

 

 

BR

 

 

 

 

 

 

 

 

 

See Note 1

F1

 

TX1

 

HP2

See Note 7

 

 

 

 

 

BK

R

BK

 

 

 

 

 

 

 

R

 

 

 

 

 

F2

 

 

 

 

RHTR1

RHTR2

 

 

 

 

BK

 

BK

 

 

 

3-Phase Line

L1

 

 

1C1

 

 

 

 

HG1

HGSV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Voltage Supply

L2

 

 

2C1

 

 

 

 

 

 

By Others

L3

 

 

3C1

 

 

 

 

LLSV1

(See Note 3)

 

 

 

 

 

 

 

 

 

BR

BR

 

R

BK

BR R OR

 

 

 

 

CHTR

 

 

 

Earth Ground

 

 

 

 

 

 

 

 

 

By Others

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAP2

Y

 

 

 

 

 

 

 

 

 

 

BR

 

 

 

 

 

 

 

 

 

 

'FM'

 

T3T2T1

 

 

 

 

 

 

 

 

Fan

 

COMP

 

 

 

 

 

 

 

 

Motor

 

 

 

 

NOMENCLATURE

Standard Devices

C1 -- Condenser Contactor

CAP2 -- Fan Motor Capacitor

CHTR -- Compressor Heater

COMP -- Compressor

F1 -- Transformer Fuse 1

F2 -- Transformer Fuse 2

FM -- Fan Motor

HP1 -- High Pressure Switch

(Auto Reset)

HP2 -- Pressure Switch Receiver

(Auto Reset)

LLSV -- Liquid Line Solenoid Valve

RHTR1 -- Receiver Heater No. 1

RHTR2 -- Receiver Heater No. 2

(3-,4-,and 5-ton only)

TX1 -- Transformer Line

Voltage to230V

Optional Devices

HG1 -- Hot Gas Relay

HGSV -- Hot Gas Solenoid Valve

WIRE COLOR CODE

OR - Orange

R - Red

BR - Brown

P - Purple

GN - Green

Y - Yellow

BL - Blue

BK - Black

W - White

Insulation Color

GN / Y

Tracer Color

1.Transformer 'TX1' provided on units with nameplate voltages greater than 240V.

2.Use copper conductors only. See unit nameplate for main supply wire sizing data. Wire per local codes.

3.A remote disconnect switch is to be field supplied and mounted within sight of the condensing unit. See unit nameplate for voltage

and amperage requirements.

4. All motors have internal line break overload protectors. Three-phase motors protected for primary single-phasing conditions.

5. Terminals 1, 2, 3 and 4 are for connection of control circuit from evaporator

unit. Wiring by others to be NEC Class 2 and sized for 1 volt maximum drop. 6. Wire '1' is connected to the grounded side of the 24V Class 2 circuit.

7.Receiver heater No.2 'RHTR2' supplied on 4- and 5-ton standard models and 3/3.5-ton high ambient and Quiet-Line models.

Factory-Supplied Line Voltage

Field-Installed Line Voltage Wiring

Optional Line Voltage Wiring

Factory-Supplied 24V NEC Class 2 Wiring

Optional 24V Wiring

Factory-Supplied 24V NEC Class 2 Wiring

Factory-Supplied Earth Grounding Wire

Pigtail Leads 24V Wiring

Terminal Strip Connection

191643

Grounding Lug Connection Rev. 0

12

Page 16
Image 16
Emerson Figure i manual Three-phase, 3-5 ton model schematic, typical