Carrier 30HS User Manual download pdf

Number One

AirConditbning

Maker

n of Carrier Corporation

Syracuse New York

Wiring Diagrams

30HR,HS

070 iJ»ru tm

Reciprocating Liquid Chillers

60-Hertz

These diagrams apply to 30HR,HS070—120 Model A units starting

with Serial No. FI 55985 and ending with Serial No. G448588.

INDEX

UNIT

30HR,HS

070

thru

120

070,

080,

090

100,

no,

120

FIGURE

NUMBER

DESCRIPTION

Wi ri rig For

Part-Winding Start

Suggested Field

Wiring Interlocks

’ ~T_ocdtTons o?

Control Components

Power Schernatic

Control CTrcu i t

{Simplified Schematic)

CornfroTTr i rcuit

(Simplified Schematic)

Power Schematic

'Locations of

Control Components

VOLTS

All

208,230,

460,575

208,230,

460,575

UNIT LABEL DIAGRAM

30HR

All

080-1214

080-1224

100-1584

100-1594

Same As

Below

GENERAL NOTES

1. Factory wiring is in accordance with the

National Electrical Code. Any field modifica

tions or additions must be in compliance with

all applicable codes. Field-installed power wires

must be rated 75 C minimum.

2. Control circuit is 115-1-60, with 10-amp circuit

breaker.

3. Oil pressure safety switches are standard on

30HS units only. Jumpers between terminals] 1 |

and

and between and are supplied on

30HR units.

4. Manual transfer switch provides the following

starting sequences:

Three-compressor units — position 1 (terminal

A), 3-2-1; position 2 (terminal B), 1-2-3.

Four-compressor units ~ position 1 (terminal

A), 1-4-3-2; position 2 (terminal B), 3-2-1-4.

Stop unit before changing transfer switch

position.

5. All field-supplied auxiliary contacts must have a

minimum rating of 1250-va inrush and 430-va

sealed plus capacity required for field-installed

equipment between terminals 111 [ and

andpT],] 5 [and and

6. With accessory .75-kva control transformer,

additional controls up to 3800-va inrush and

175-va sealed may be used.

When using a transformer, ground control

circuit by connecting green wire from trans

former terminal X2 to ground screw (detailed

instructions with transformer package).

When using field-supplied 115-volt control

(L2) must be connected to24power, terminal

neutral or ground potential.

Across-the-line starting is standard on all units.

If it is necessary to modify to part-winding

start, refer to “Modification For Part-Winding

Start.”

Form 30HR,HS-7W

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - Reciprocating Liquid Chillers

Number OneAirConditbningMakermen of Carrier CorporationSyracuse New YorkWiring Diagrams30HR,HS070 iJ»ru tmReciprocating Liquid Chillers60-HertzThese d

Page 2

SEQUENC^OF OPERATIONThe 115-1-60 control power can be supplied directly from a separate source thru a code- approved fused disconnect

Page 3 - M '

REMOVE PRESENT JUMPER 11-12[TT]----------------1 I------------------------------------------------------------0^5-----------cÿ5-CHILLED WATER L COND

Page 4 - 30HR, HS070, 080,090

CONTACTORS COMPRESSORS-ON 208-, 230-VOLT UNITS ONLY30HR, HS070, 080,090Fig. 4 — Power Schematic (All Voltages)

Page 5 - 30HR, HS070, 080, 090

-ON 208-, 230-VOLT UNITS ONLY30HR, HS070, 080, 090Fig. 5 — Control Circuit Schematic (All Voltages)5

Page 6 - 30HR, HS100, 110, 120

930HR, HS100, 110, 120Fig. 6 — Control Circuit Schematic (All Voltages)

Page 7 - 208-,230- VOLT UNITS

CIRCUIT BREAKERS (CALIBRATED TRIP)CONTACTORSCOMPRESSORS%WHEN SEPARATE II5V SOURCE NOT AVAILABLE) ^460-, 575-VOLT UNITSCONTACTORSCIRCUIT BREAKERS (

Page 8 - 118-22 I

EXTERNAL CONTROL POWER SOURCE (IF USED)CIRCUIT NO. ICONTACTORSClCfACZAC2CIRCUITBREAKERSCOMPR. I C0MPR.2TERMS. 118-22 I TERMINAL STRIPCC0 0M Mp pR R_i_

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Carrier 30HS User Manual

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