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Pressure differential adjustment, 9table 2a — 06d physical data, Table 2b — 07d physical data – Carrier 06D User Manual

Page 9: Table 3 — factory switch settings

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9

Table 2A — 06D Physical Data

*Compressors listed are for R-22 applications. For R-134a and R-507/

404A an 06DR compressor is standard. Factory compressor substitutes
may be made. Contact Carrier Sales Representative.

NOTE: The 06DE8251 compressor unit with the 06DA825 compressor
replaces the 06DE8241 once inventory of the 06DA824 compressor is
depleted.

Table 2B — 07D Physical Data

LEGEND

*Compressor listed is the standard compressor for R-22, air conditioning

duty. An 06DR compressor is standard equipment for low temperature
(R-507/404A) or medium temperature (R-134a) applications. Factory
substitutions may be made. Contact Carrier Sales Representative.

†The condenser listed is for R-22, air conditioning duty and may change

based on the application. Maximum condenser operating pressure:
350 psi refrigerant side, 300 psi water side (“CX” models); 350 psi
refrigerant side, 150 psi water side (“AX” models).

NOTE: The 07DB210 with the 06DA825 compressor replaces the
07DB210 with the 06DA824 once the compressor inventory is depleted.

Table 3 — Factory Switch Settings

LEGEND

NOTES:
1. Values for the high- and low-pressure switches based on R-22.

For other refrigerants, reset to pressure corresponding to satura-
tion temperatures indicated by the listed pressures.

2. Values for oil pressure are above operating suction pressure

(pressure differential between suction and discharge pressures
of oil pump).

CAPACITY CONTROL (Suction Cutoff Type)

Control Set Point (Cylinder Load Point) —

Set

point is adjustable from 0 to 86 psig. Pressure differential
between cylinder load-up point and cylinder unload point is
adjustable from 7 to 19 psi.

To Regulate Control Set Point —

Refer to Fig. 7.

Turn adjustment nut clockwise to its bottom stop (with nut in
this position, set point is 86 psig). Control set point is then
regulated to desired pressure by turning adjustment nut coun-
terclockwise. Every full turn decreases set point by 7.2 psi.
Approximately 12 turns in counterclockwise direction will de-
crease control set point to 0 psig. Table 4 shows steps of control
for the compressor and condensing unit.

Pressure Differential Adjustment —

Turn differ-

ential adjusting screw counterclockwise to its back-stop posi-
tion (differential in this position is 7 psi). Pressure differential is
set by turning adjustment screw clockwise. Every full turn
increases differential by 1.2 psi. Approximately 10 turns in
clockwise direction will increase pressure differential to 19 psi.

UNIT 06D

A8081

H3131

A8181

E8251

E3281

E5371

OPERATING WEIGHT (lb)

180

250

265

325

325

330

REFRIGERANT

R-134a, R-22, R-507/404A

COMPRESSOR — 06D*

M808

M313

A818

A825

A328

A537

Cylinders

2

4

4

6

6

6

Bore (in.)

2

2

2

2

2

2

Stroke (in.)

1

1

/

4

1

1

7

/

16

1

1

/

4

1

15

/

32

1

15

/

16

Displacement (cfm at 1750 rpm)

8

13

18.3

23.9

28

37.1

Maximum Rpm

1750

Oil Charge (pt)

3

4.5

5.5

8

8

8

High Side Maximum Pressure

450 PSIG

Low Side Maximum Pressure

245 PSIG

CONNECTIONS (in.)

Suction Valve (ODF)

7

/

8

7

/

8

1

1

/

8

1

3

/

8

1

3

/

8

1

3

/

8

Discharge Valve (ODF)

5

/

8

5

/

8

7

/

8

7

/

8

7

/

8

1

1

/

8

UNIT 07D

A203

B205

A208

B210

B212

B215

OPERATING WEIGHT (lb)

270

395

420

545

595

620

REFRIGERANT

R-134a, R-22, R-507/404A

COMPRESSOR — 06D*

M808

M313

A818

A825

A328

A537

Cylinders

2

4

4

6

6

6

Bore (in.)

2

2

2

2

2

2

Stroke (in.)

1

1

/

4

1

1

7

/

16

1

1

/

4

1

15

/

32

1

15

/

16

Displacement (cfm at 1750 rpm)

8

13

18.3

23.9

28

37.1

Maximum Rpm

1750

Oil Charge (pt)

3

4.5

5.5

8

8

8

High Side Maximum Pressure

450 PSIG

Low Side Maximum Pressure

245 PSIG

CONDENSER (Shell and Tube)† Part Number

P701-0605CX

P701-0607CX

P701-0610CX

P701-0615CX

P701-0620CX

P701-0625AX

Refrigerant Storage
Capacity (lb)

R-134a

17.20

15.90

24.40

31.60

27.40

39.80

2.86

3.16

5.00

7.55

8.47

9.18

R-22

17.00

15.70

24.10

31.20

27.10

39.30

Min Refrigerant Operating
Charge (lb)

2.80

3.10

4.90

7.40

8.30

9.00

R-507/404A

14.70

13.60

20.90

27.10

23.50

34.10

2.80

3.10

4.90

7.40

8.30

9.00

REFRIGERANT CONNECTION (in. ODF)
Inlet

1

5

/

8

1

5

/

8

1

5

/

8

1

5

/

8

1

5

/

8

1

5

/

8

Outlet

1

1

/

8

1

1

/

8

1

1

/

8

1

1

/

8

1

1

/

8

1

1

/

8

WATER CONNECTION (in. FPT)
Inlet/Outlet

1

1

1

1

/

4

1

1

/

4

1

1

/

4

2

FPT

Female Pipe Thread

ODF

Outside Diameter, Female

SWITCH TYPE

PRESSURE CHANGE AFFECTING

SWITCH POSITION

Closed

Open

High Pressure

210 (±10) (psig)

290 (±10) (psig)

Low Pressure

70 (±4) (psig)

60 (±4) (psig)

Oil Pressure

6 (psid)

11 (psid)

psid

pounds per square inch differential

psig

pounds per square inch gage

802