Euroclima ZHK, Руководство пользователя

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Instruction Manual ZHK
124/140 V07-21.0
Low pressure safety switch:
The low pressure switch stops the compressor when the equipment pressure falls below the allowed
low pressure limit. A functional check must be carried out during commissioning and must be per-
formed at each time maintenance work is undertaken.
Handling:
If the unit goes into high or low pressure mode, the problem must be rectified at the control panel for
the compressors to start again.
Electrical superheat controller
The Electronic-Superheat-Controller has an internal battery, so that the valve closes securely even
during power failures. Without this feature, the valve remains open, resulting in liquid hammering in
the compressor at the restart. Liquid hammering can cause damage to the compressor.
NOTICE!
Therefore, annual replacement of the battery is recommended for safety rea-
sons.
9.11.3 Inspection
Inspection work may be carried out by the operator in trimestral intervals.
All equipment:
-
Have a look for loose links, fasteners etc., tighten if necessary.
-
Pay attention to unusual noise.
-
Have a look for oil leakage on components and joints.
-
Have a look at corrosion around piping of the refrigeration circuit, if necessary spraying again
with acrylic varnish.
Air-cooled condenser, direct expansion evaporator:
Clean fin surface if necessary. Dirty fins reduce the transmission of heat, which could result in unac-
ceptable condensing / evaporation temperatures. Be careful not to damage the fins. Clean with com-
pressed air or a vacuum cleaner.
Compressor:
Check oil sight glass in the crankcase (if mounted). Pay attention to unusual noise. To start the
compressor manually, it has to commence as described in
chapter 8.2.2
(
Manually starting the
compressor via EUROCLIMA control
).
Coolant contents:
Check the inspection glass in the liquid line, to see whether or not the inspection glass is completely
full. At maximum capacity, if bubbles appear in the inspection window, the contents are defective
and must be rectified by a specialist. Importantly, the appearance of bubbles under partial capacity
can occur under certain performance windows and is not a sign of a prevailing fault with the refrig-
erant.
Condensate tray and outlet:
-
Examine condensate outlet and tray for dirt and clean if necessary.
-
Clean or rinse out condensate outlet from time to time.