Bitzer Compressor Cooling System with Controlled Injection Refrigerant (CIC)
- Issue: Vol 90, No 6 (2001)
- Pages: 28-29
- Section: Articles
- URL: https://journal-vniispk.ru/0023-124X/article/view/105050
- DOI: https://doi.org/10.17816/RF105050
- ID: 105050
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Abstract
Commissioning works. Preliminary operations are carried out first
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Schematic diagram of the electrical equipment of a single-stage reciprocating compressor equipped with the CIC system: contacts of the master thermostat RI (temperature in the cooled volume). Wb - control unit of the CIC system; H - main fuse; F2 - motor fuse F3 - control circuit fuse; F4 - engine thermal protection device, F5 - oil pressure control switch; F6 - low pressure switch; 17 high pressure switches, 2 crankcase heater fuse; F13 motor fuse • crowd, a lot of fan; F14 - fuse for the control unit of the C1C system, designed for a rated current of 4A; - signal lamp "Engine failure": H2 signal lamp * Low oil pressure *; NZ - signal lamp "Accident C1C": K - contactor of the first part of the winding with separate start; K 2 - contactor of the second part of otiMumKut as a separate piece Kb contactor of an additional fan; CT - time relay (delay 0.5 ... 1.0 s) for connecting the second part of the winding with separate start; K2T - time relay (delay 300 s) to protect the compressor from cycling; M - compressor; N type IHHMII fan; Q1 - main switch; 51 - button for manual activation of the device 1NG 69 15, 52 - manual activation of the CIC system; R 1-6 - built-in temperature sensors of the compressor motor winding: R8 crankcase heater; R10 - discharge temperature sensor; Y1 - solenoid valve "Start without load"; Y2 - solenoid valve on the liquid line; Y5 - liquid injection solenoid valve
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