_coldmachine.book Seite 43 Freitag, 8. Dezember 2006 1:27 13
ColdMachine
6.3
Installing the external temperature regulator
Mechanical thermostat
The temperature regulator can be mounted either on the outside or inside of
the cooling container. The interior temperature is regulated depending on the
surface temperature of the vaporiser, or for VD-14N and VD-15, depending
on the room temperature.
➤ Connect the coiled end of the sensor cable to the vaporiser (not VD-14N,
VD-15) using the clamping plate. This is premounted on VD-14N, VD-15.
➤ Make sure that the sensor line does not make contact anywhere else with
the vaporiser or with the suction line.
TEC control
The TEC control must be attached outside of the cooling container.
The internal temperature is regulated according to the vaporiser surface
temperature.
The temperature sensor has been factory-mounted to the accumulator.
➤ Connect the temperature sensor with the TEC control via the plug-in
coupling.
Mount the one-way couplings (not CS-NC15)
The cooling unit is delivered in a disconnected state (the vaporiser and com-
pressor are separated); however, it has been filled at the factory with the
proper amount of coolant.
➤ Install the machine part and the vaporiser.
➤ Remove the screwed-on caps from the coupling halves that protect the
rubber seal from dirt.
The fig. f, page 8, shows the condition of the coupling halves after
removing the caps when uncoupled.
➤ Place the coupling halves by hand on top without tension and tighten
them by hand (fig. g, page 8).
If the position in fig. h, page 9 has been reached (2–3 mm distance
between both coupling halves), the coupling has not yet been tightened.
The coupling only has rubber seals to prevent the loss of coolant. They do
not provide long-term protection against leakage.
Installing the cooling unit
43