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Operation and Maintenance Instructions
Envistar Top 04-21
DSET.181201.00.EN
Continuous product development may give rise to specification changes without notice.
6.11 Cooling unit (code ATCR)
General
The cooling unit has been designed and fabricated along given operation
parameters that must be met in order for the unit to operate optimally and
provide good operating economy. The operation parameters must not be
changed unless a check is first made to ascertain that the changes will be within
the unit’s operating range.
Leakage inspection and registration
For information on the operator’s responsibility with regards to leakage inspec-
tion and registration, see "2.6 Handling of refrigerant" page 9.
Visual check
Check:
1. The fins on the condenser/evaporator to detect mechanical deformations
2. The drip tray and drain with water trap (clean if necessary)
3. That the water trap (without non-return valve) is filled with water.
Cleaning
If the fins on the batteries are dirty, clean them by vacuuming from the inlet side,
or carefully blow them clean with compressed air from the outlet side. In the
event of stubborn dirt, use a mild, alkaline detergent.
For more information, refer to
.
Function
Check that the cooling unit is operating as it should by temporarily lowering the
temperature setting (setpoint). Note that cooling is blocked during weak air flow
or when the outdoor temperature drops below the set value for cooling start.
(For control equipment (code MX) Login 2000 - Main Menu/Unit/Temperature
Control/Cooling/Block at outdoor temp).
