Bitzer Compressor Cooling System with Controlled Injection Refrigerant (CIC)*
- Issue: Vol 90, No 5 (2001)
- Pages: 29-31
- Section: Articles
- URL: https://ogarev-online.ru/0023-124X/article/view/105224
- DOI: https://doi.org/10.17816/RF105224
- ID: 105224
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Abstract
Installation of the cooling system. In cases where the compressor is ordered complete with an OS system, a control unit, a temperature sensor with its connecting wire and an injector (one injector for four-cylinder compressors, two for six-cylinder compressors) are installed on it at the factory. The nozzle is closed with a screw plug. The pulse non-magnetic injection valve, equipped with power supply connectors, is delivered in a separate package to prevent possible damage during transportation. Mount the valve on the compressor before checking the tightness of the circuit.
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Rice. 1. Base plate for the control unit of the CTC system on compressors of models: a from 4Z-5.2 to 451-12.2; b - from 4 7 -3.2 to 61-40.2; 1 base plate; 2-long base plate bolts
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3.
Rice. Fig. 2. Mounting points for the temperature sensor and injection nozzle(s) for compressors: a - four-cylinder models from 47-5.2 to 4N-12.2: 1 - hole for the temperature sensor; 2 - hole for the nozzle; b - four-cylinder models from 4Z-13.2 to 4G-20.2: 1 - hole for the temperature sensor; 2 - hole for the nozzle; c - for six-cylinders with a hole for the nozzle size 1.65 "(pos. 2) and size 1.2" (pos. 3); d - side view (from the side opposite the sight glass) of the compressor shown in fig. 2, in
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4.
Rice. 3. The position of the injection pulse solenoid valve when installed on four-cylinder compressors of models from 4Z-52 to 4N -12.2 (the valve coil is conventionally not shown): 1- injection valve: 2 - clamping collar; 3 - bolt M6x12; 4 - nut Mb; 5 - mounting bracket; 6 - nozzle; 7 — paw for attaching an additional fan; 8 - spring washer; 9 - hairpin; 10 - cylinder head; 11- nut M 10
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5.
Rice. Fig. 4. The position of the impulse solenoid injection valve when installed on four-cylinder compressors of models from 47-13.2 to 4G-20.2 (the valve coil is conventionally not shown): 1 - mounting bracket; 2 - injection valve; 3 - clamping collar; 4 - cylinder head; 5 - cylinder head bolt; 6 - bolt M6x12; 7 - nut Mb; 8 - nozzle
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6.
Rice. Fig. 5. The position of the impulse solenoid injection valve when installed on six-cylinder compressors of models from 67-22.2 to 6F-40.2 (the valve coil is conventionally not shown): 1 - injection valve; 2 - clamping collar; 3 - bolt M6x12; 4 - nut Mb; 5 - mounting bracket (two different models); 6 - cylinder head; 7 - fixing bolt of the head of the block; 8 - nozzle 1.2"; 9 - nozzle 1.65"
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7.
Pic. 6. Scheme of connecting elements of the C1C system to the control unit; 1 - injection valve contact; 2 - alarm contact; 3 - safety circuit contact; 4 - power supply connection terminals; 5 - manual activation of the C1C system; A1/A2 alarm (no voltage at the terminals); M 1 / M2 - compressor contactor control circuit (no voltage at the terminals); L /N - power supply voltage; PE - terminals for grounding connection; PE/ 1)Ch:/2 - terminals for connecting the shielding braid of the temperature sensor cable; R 10 - temperature sensor. K5 injection valve (normally closed); K1 - compressor contactor; F14 - fuse for the C1C system booster unit, rated for a rated current of 4A
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