Parallel Compressor Systems
Table 11. Oil Safety Switch
Copeland | MFGRS. | Model No. |
| Pressure | Alarm | ||
Diff. Psi (bar) | |||||||
Part No. | Circuit | ||||||
|
|
|
|
| |||
|
|
|
|
| |||
|
| Sentronic | 7 – 9 |
| 12 - 14 | Yes | |
Penn |
|
|
| No | |||
| Ranco |
|
|
| Yes | ||
| Robertshaw | 9 (± 2) |
| 14 | No | ||
Robertshaw |
| Yes | |||||
|
|
| |||||
| Penn |
|
|
| Yes | ||
| Robertshaw |
|
|
| 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 |
140 |
| 130 | - | - | |
135 |
| 120 | 250 | 235 | |
135 |
| 120 | 250 | 235 | |
130 |
| 120 | 245 | 235 | |
130 |
| 120 | 245 | 235 | |
140 |
| 125 | 255 | 240 | |
6D | 140 |
| 130 | 255 | 245 |
255 |
| 245 | 255 | 245 | |
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
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 | 21 |