Parallel Compressor Systems

Table 11. Oil Safety Switch

Copeland

MFGRS.

Model No.

 

Pressure

Alarm

Diff. Psi (bar)

Part No.

Circuit

 

 

Cut-In

 

Cut-Out

 

 

 

 

 

 

 

Sentronic

7 – 9

 

12 - 14

Yes

085-0062-00

Penn

P45NCA-12

 

 

 

No

 

Ranco

P30-5826

 

 

 

Yes

 

Robertshaw

PD21-2502

9 (± 2)

 

14

No

085-0088-00

Robertshaw

PD21-1006

 

Yes

 

 

 

 

Penn

P45NCB-3

 

 

 

Yes

085-0101-00

Robertshaw

LG21-2501

 

 

 

Yes

All controls are Manual Reset type with a 120 second nominal time delay at the rated voltage

Table 12. Oil Charges

Model

 

Standard

Deep Sump

Family

Initial (oz)

 

Recharge (oz)

Initial (oz)

Recharge (oz)

2D

80

 

72

110

95

3D

115

 

105

190

170

4DA3-100E

140

 

130

-

-

4DL3-150E

135

 

120

250

235

4DA3-200E

135

 

120

250

235

4DT3-220E

130

 

120

245

235

4DH3-250E

130

 

120

245

235

4DJ3-300E

140

 

125

255

240

6D

140

 

130

255

245

6DT3-300*

255

 

245

255

245

6DJ3-400*

255

 

245

255

245

Approved Copeland Lubricants

Mineral Oil - Suniso 3GS or Equivalent

Alkyl Benzene - Copeland Ultra 200 / Shrieve Zerol 200 TD / Soltex AB 200A / Thermal Zone 200

POE - Copeland Ultra 22CC / Mobil EAL™ Arctic 22 CC / ICI Emkarate™ RL32CF / Thermal Zone 22CC

Bitzer Screw / Copeland Contour Screw compressor lubricant: Solest 170

Carlyle Compressors

Approved Carlyle Lubricants

For CFC and HCFC Refrigerants Use:

Totaline 150 / Suniso 3GS / Shrieve Zerol 150 /Texaco WFI-32- 150 / IGI Petroleum Cryol-150

For HFC Refrigerants Use:

CPI Solest 120 / ICI Emkarate™ RL68H / +Lubrizol Lubrikuhl 2916S

/*Mobil Arctic EAL™ 68 / *Castrol SW68 + Lubrizol ISO68 also sold under Texaco Capella HFC 68NA brand

* Medium temperature applications only

Oil Pressure

The O6D and O6E oil pump is a positive displacement vane type. It produces high volume oil flow at a low oil pressure. The compressor utilizes an internal pressure regulator valve to maintain oil pressure at a constant 12 to 36 psi above suction pressure.

Table 13. O6D/E Oil Pressure History

 

O6D Models

O6E Models

 

 

Psi (bar)

Psi (bar)

 

Before May 1984

12 to 18

12 to 18

 

(Prior S/N 2084J...)

(.83 to 1.24)

(.83 to 1.24)

 

 

 

 

 

May 1984 to March 1994

16 to 22

16 to 22

 

(Between S/N 2084J... & 1094J)

(1.1 to 1.52)

(1.1 to 1.52)

 

 

 

 

 

Starting March 1994

18 to 26

18 to 34

 

(Starting S/N 1094J....)

(1.24 to 1.8)

(1.24 to 2.3)

 

 

 

 

 

 

 

 

 

Parallel Compressor Systems Installation & Operations Manual, October 2004

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Heatcraft Refrigeration Products 25000102 Oil Safety Switch, Oil Charges, Approved Copeland Lubricants, Oil Pressure