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036-33072-001 Rev. A (0601)

14

Unitary Products Group

TABLE 2: ELECTRICAL DATA - STANDARD MOTORS

TABLE 3: ELECTRICAL DATA - OVERSIZE MOTORS

Notes

:

Data shown for packaged unit installation, with single point power supply.

Min. Circuit Ampacity ( MCA ) = 1.25 X Largest single motor amps (FLA or RLA) + sum of the remaining motor amps.

Max Fuse / Cct. Bkr Size ( MFS ) = 2.25 X Largest motor amps + sum of the remaining motor amps.

Select next smallest NEC listed fuse size from calculated value

MODEL

VOLTAGE

COMPRESSOR

EVAPORATOR

MIN. CCT.

MAX. FUSE/

#

QTY

RLA

LRA

HP

RLA

RPM

AMPACITY

CCT. BKR. AMP

CU060A

208-230/3/60

460/3/60
575/3/60

1 @
1 @
1 @

19.3

7.5
6.4

123.0

49.5
40.0

1.00
1.00
1.00

3.1
1.6
1.3

1800
1800
1800

27.23
10.98

9.30

45
15
15

CU096A

208-230/3/60

460/3/60
575/3/60

2 @
2 @
2 @

13.9

7.1
5.4

88.0
44.0
34.0

1.50
1.50
1.50

4.5
2.2
1.8

1800
1800
1800

35.78
18.18
13.95

45
25
15

CU120A

208-230/3/60

460/3/60
575/3/60

2 @
2 @
2 @

19.3

7.5
6.4

123.0

49.5
40.0

2.00
2.00
2.00

6.0
3.0
2.4

1800
1800
1800

49.43
19.88
16.80

60
25
20

CU186A

208-230/3/60

460/3/60
575/3/60

2 @
2 @
2 @

25.0
12.0

9.7

164.0
100.0

90.0

3.00
3.00
3.00

8.4
4.2
3.4

1800
1800
1800

64.65
31.20
25.23

80
40
30

CU240A

208-230/3/60

460/3/60
575/3/60

2 @
2 @
2 @

33.6
17.3
13.5

225.0

114.0

80.0

5.00
5.00
5.00

14.0

6.6
5.7

1800
1800
1800

89.60
45.53
36.08

110

60
45

CU300A

208-230/3/60

460/3/60
575/3/60

3 @
3 @
3 @

32.1
16.4
12.0

195.0

95.0
80.0

7.50
7.50
7.50

22.2
10.8

8.4

1800
1800
1800

126.53

64.10
47.40

150

80
50

MODEL

VOLTAGE

COMPRESSOR

EVAPORATOR

MIN. CCT.

MAX. FUSE/

#

QTY

RLA

LRA

HP

RLA

RPM

AMPACITY

CCT. BKR. AMP

CU060A

208-230/3/60

460/3/60
575/3/60

1 @
1 @
1 @

19.3

7.5
6.4

123.0

49.5
40.0

1.50
1.50
1.50

3.1
1.6
1.3

1800
1800
1800

28.63
11.58

9.80

45
15
15

CU096A

208-230/3/60

460/3/60
575/3/60

2 @
2 @
2 @

13.9

7.1
5.4

88.0
44.0
34.0

2.00
2.00
2.00

4.5
2.2
1.8

1800
1800
1800

37.28
18.98
14.55

50
25
15

CU120A

208-230/3/60

460/3/60
575/3/60

2 @
2 @
2 @

19.3

7.5
6.4

123.0

49.5
40.0

3.00
3.00
3.00

6.0
3.0
2.4

1800
1800
1800

51.83
21.08
17.80

70
25
20

CU186A

208-230/3/60

460/3/60
575/3/60

2 @
2 @
2 @

25.0
12.0

9.7

164.0
100.0

90.0

5.00
5.00
5.00

8.4
4.2
3.4

1800
1800
1800

70.25
33.60
27.53

90
45
35

CU240A

208-230/3/60

460/3/60
575/3/60

2 @
2 @
2 @

33.6
17.3
13.5

225.0

114.0

80.0

7.50
7.50
7.50

14.0

6.6
5.7

1800
1800
1800

97.80
49.73
38.78

125

60
50

CU300A

208-230/3/60

460/3/60
575/3/60

3 @
3 @
3 @

32.1
16.4
12.0

195.0

95.0
80.0

10.00
10.00
10.00

22.2
10.8

8.4

3600
3600
3600

129.93

64.90
48.10

150

80
60

Summary of Contents for SINGLE PACKAGE AIR CONDITIONING CU060

Page 1: ...NUAL WATER COOLED AIR CONDITIONING UNITS MODELS CU060 096 120 180 240 300 036 33072 001 Rev A 0601 CONTENTS GENERAL 3 INSTALLATION 4 GENERAL DATA 5 DIMENSIONAL DATA 6 WATER PIPING 8 DUCTWORK 11 EVAPOR...

Page 2: ...ONAL DATA 6 WATER PIPING 8 CONDENSOR PRESSURE CONTROL 9 DUCTWORK 11 SUPPLY AIR I RETURN AIR CONFIGURATION 11 EVAPORATOR BLOWER DISCHARGE CONVERSION 12 ELECTRICAL WIRING 12 MOTOR AND PULLEY DATA 16 BLO...

Page 3: ...essure switches All models are equipped with an adjustable thermal expansion valve with external equalizer one valve per circuit Each refrigerant cir cuit is also equipped with a liquid line filter dr...

Page 4: ...no leaks have occurred during shipment Install gauge set to high and low pressure ports to confirm pressure has been maintained and no leaks have occurred during shipment Repair any damage prior to in...

Page 5: ...these units outdoors or in any area where the surrounding temperature may drop below 32 degrees F LOCK ALL ELECTRICAL POWER SUPPLY SWITCHES IN THE OFF POSITION BEFORE INSTALLING THE UNIT FAILURE TO DI...

Page 6: ...036 33072 001 Rev A 0601 6 Unitary Products Group DIMENSIONAL DATA FIGURE 2 DIMENSIONS CU060 CU096 CU120...

Page 7: ...036 33072 001 Rev A 0601 Unitary Products Group 7 FIGURE 3 DIMENSIONS CU180...

Page 8: ...e provided on the water supply and return lines if noise and vibration trans mission could be a problem Water piping should include shutoff balancing valves so that the unit can be serviced without sh...

Page 9: ...justing screw clockwise will lower the opening point and lower the condensing pressure being maintained If mains water is being used make sure the valve closes soon after the compressor stops If the f...

Page 10: ...036 33072 001 Rev A 0601 10 Unitary Products Group FIGURE 5 WATERSIDE PRESSURE DROP STANDARD UNIT MANIFOLDED CONDENSERS...

Page 11: ...m the con ditioned space 5 15 ton models with optional return air grille or mechanical room 20 and 25 ton models If a ducted return is desired duct connection flanges may be secured directly to the ai...

Page 12: ...ion In order to utilize the rear vertical or rear horizontal dis charge on 5 through 15 ton models the upper fan module must be rotated a Disconnect power wiring at motor terminal box b Remove corner...

Page 13: ...utilizing space or return air thermostatic controls A low volt age terminal block is provided for hook up of conventional or programmable thermostats The CU6300 25 ton models feature three independen...

Page 14: ...1800 64 65 31 20 25 23 80 40 30 CU240A 208 230 3 60 460 3 60 575 3 60 2 2 2 33 6 17 3 13 5 225 0 114 0 80 0 5 00 5 00 5 00 14 0 6 6 5 7 1800 1800 1800 89 60 45 53 36 08 110 60 45 CU300A 208 230 3 60...

Page 15: ...77 760 1 91 797 2 05 837 2 21 878 2 38 919 2 54 960 2 70 1001 2 87 1040 3 05 CU180A 5400 645 1 52 709 1 79 770 2 06 829 2 35 885 2 65 939 2 96 991 3 28 1042 3 61 1092 3 96 1140 4 32 1190 4 71 6000 700...

Page 16: ...l rotate in either direction depending upon phasing of the power Since there is a 50 50 chance of connecting power in such a way as to cause rota tion in the reverse direction it is important to ensur...

Page 17: ...nal protector will trip If opposite rotation is needed disconnect and reverse any two leads of the three phase supply Reconnect power and observe for correct rotation Observe unit operation and check...

Page 18: ...036 33072 001 Rev A 0601 18 Unitary Products Group FIGURE 7 TYPICAL WIRING DIAGRAM 208 230V 3PH 60 HZ...

Page 19: ...w is properly set Check that the blower wheel is tight on the shaft and that the hub set screws are properly torqued DRIVE BELTS Examine belts periodically for wear Glazed areas on the drive surfaces...

Page 20: ...ect to change without notice Printed in U S A 036 33072 001 Rev A 0601 Copyright by Unitary Products Group 2000 All rights reserved Supersedes Nothing Unitary 5005 Norman Product York OK Group Drive 7...

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