Roof-top air-conditioning system CC8 2 General description
205
2.4 Compressor
The compressor (Fig. 205), a swashplate compressor, is available in eight versions:
– TM-16HD h, with horizontal refrigerant connections and twin V-belt pulley, 12 V
– TM-16HD h, with horizontal refrigerant connections and twin V-belt pulley, 24 V
– TM-16HD v, with vertical refrigerant connections and twin V-belt pulley, 12 V
– TM-16HD v, with vertical refrigerant connections and twin V-belt pulley, 24 V
– TM-16HD v, with vertical refrigerant connections and Poly V8 belt pulley, 12 V
– TM-16HD v, with vertical refrigerant connections and Poly V8 belt pulley, 24 V
– TM-16HD v, with horizontal refrigerant connections and Poly V8 belt pulley, 12 V
– TM-16HD v, with horizontal refrigerant connections and Poly V8 belt pulley, 24 V
NOTE
For the relevant order number refer to the price list.
Fig. 205 Compressor versions
2.5 Electrical system
The electrical connection of the air-conditioning systems is shown in the circuit diagrams, Figs. 701 to 703.
Connection should be made across a battery discharge protection circuit with fuse. In this configuration, the air-
conditioning system can only be operated with the engine running.
A main fuse rated as shown in the circuit diagrams (Figs. 701 to 703) must be installed in all cases.
2.6 Principle of operation of the roof-top air-conditioning system
When the air-conditioning system is switched on via the ON / OFF rocker switch, the compressor (13, Fig. 206) engages
via the magnetic clutch and is driven by the V-belt of the vehicle engine. The compressor compresses the refrigerant
gas and supplies it to the condenser (11), where the gas condenses and dissipates heat.
The external air (8 and 12) flowing through the condenser takes up the heat produced by condensation.
Two axial fans (9) maintain a sufficient air flow even when the vehicle is stationary.
Vertical
refrigerant connection
Horizontal
refrigerant connection
Twin V-belt pulley
Poly V8
belt pulley
NOTE
The diagram shows compressors with horizontal and vertical
refrigerant connections and different belt pulleys by way of example.
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