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Operation and Maintenance
Envistar Top 04-21
DSET.220501.07.en
Continuous product development may give rise to specification changes without notice.
6.12 Cooling unit (code TEC-R, TEC-M) and reversible heat pump (code
TTC)
General
The operation parameters for the unit 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 8.
Visual check
WARNING!
Risk of serious personal injury and/or damage to air handling
unit.
Read and understand the entire chapter "1.5 General safety
messages" before working on, servicing, or inspecting the air
handling unit.
Check:
1. fins on the supply air coil/extract air coil for mechanical damage
2. The drip tray and drain with water trap (clean if necessary)
3. that the water trap is filled with water.
Cleaning
WARNING!
Risk of serious personal injury and/or damage to air handling
unit.
Read and understand the entire chapter "1.5 General safety
messages" before working on, servicing, or inspecting the air
handling unit.
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). Cooling is blocked during weak air flow or when
the outdoor temperature drops below the set value for cooling start.
