Installation of evaporation unit
- Attach the air cooler to the ceiling of the cold storage room. Minimum distances (see
dimensions sheet) must be observed.
- Attention: No condensation evaporation! Condensation water must be fed directly into
the drainage system provided by the client.
- Based on the direction of air flow, the tubing connectors are found on the right, and the
electrical connector on the left (see dimensions sheet): Suggested bore diameter for the
refrigerant tubing is 85mm to 95mm.
Installation of the refrigerant tubing with the Aeroquip coupling:
- Remove the tubing from the packaging and carefully unroll it without creating any kinks.
- If necessary, please clean the threads of both clutch halves with a clean cloth, in order to
prevent the encasement of dirt and humidity within the system.
- Lubricate the threads, membranes and the rubber seal of the male half of the coupling
with refrigerant oil, or alternatively acid free oil (sewing machine oil). Then screw the
coupling nut on by hand, until it engages the threads. Tighten by using two exact fitting or
adjustable wrenches until a noticeable resistance occurs. The hexagon nut and the
bulkhead wall resp. counter hexagon have to be marked axially and then the nut has to be
tightened further until the marks are out-of-line by ¼ turn (approx. 90°) to each other. The
result is a leak-proof metallic connection between the clutch halves. (check the seal
tightness with the enclosed leak detector spray!)
Notice: Please note that once the Aeroquip connection has been closed, it cannot be
opened again without the loss of refrigerant. Therefore, such tasks should only be
performed by a refrigeration specialist.
In conclusion, the electrical connecting cable leading from the outer unit to the inner unit
must be hooked up (see connecting diagram).
Self-manufacture of the copper tubing:
- None of the parts may get into contact with water during mounting.
- The copper tubes must be brazed into the Aeroquip screw connections with a silver filling
for brazing (fire hazard; pay attention to the membrane), then the impermeability must be
checked.
- Please note that the suction pipe must be insulated.
- Afterwards the tubes must be evacuated by use of a vacuum pump for at least 15
minutes.
- Then the fluid pipe needs to be filled with a liquid refrigerant.
The suction line is to be filled with a gaseous refrigerant (see table on Pg. 31 for filling
volume).
- When installing the lines, please note that the uphill gradient may not exceed 3m and the
total length may not exceed 10m.1
- Tighten the Aeroquip-fittings as described.
- Lay out electric and control cables and connect them to the designated terminals.
Attention: Do not tamper with the unit unless it is disconnected from the power supply.
All work should be done by a refrigeration specialist. The non-observance will lead to the
loss of all warranty claims.
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