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1002595 ISSUE 5 M172 VARIHEAT
VARIHEAT AA SYSTEM OWNER INSTALLATION MANUAL
Heat pump
9 Check: Are all heat exchangers in good condition?
9 Check: Is condensate connected correctly?
9 Record: Confirm refrigeration operating pressures.
Controls
9 Check – function of touchscreen.
9 Check and record – Recalibrate sensors, if necessary. (Ensure Variheat has
been running for at least 30 minutes before calibration).
9 Check and record – User Settings and record.
9 Check – Time clock or remote override settings.
9 Check – is auto-restart on power loss set to On or Off?
Commissioning report
9 Action – complete commissioning report wi all details.
9 Check – Variheat is fully operational following commissioning.
9 Check – operator has access to User instructions.
Operator handover
When commissioning is complete and ere are no outstanding actions to
complete, e Variheat is ready to be handed over to e operator. The operator
should be made aware of e user instructions and familiarised wi e basic
controls on e Home screens. The operator should be made aware of e
ongoing maintenance requirements. (See 4.1.)
4.1 MAINTENANCE
Operations carried out during a planned maintenance visit are as
follows:
1. Replace all belts & filters where fitted.
2. Check operation and condition of all fans and compressors.
3. Check capacitor tolerances.
4. Check condition of all heat exchangers/evaporators.
5. Check refrigeration system parameters.
6. Check operation of control valves.
7. Check for water leaks.
8. Check drip trays and internal drain lines for blockages and clear.
9. Check operation of controls and calibrate as necessary.
10. Check operation of interlocks in use.
11. Final check on overall operation of unit.
12. Indicate on report any faults found or causes for concern.
Frequencies recommended are as follows:
Filters may need more frequent inspection.
In order to comply wi European Union F-Gas regulations, it is necessary to
leak test hermetically sealed systems wi more an 6kg refrigerant annually.
The operator of e unit is responsible for seeing at is test is carried out. At
e time of writing, e 6kg reshold means at Calorex Variheat AA600 to
AA1500 models do not need leak testing. The operator should be aware at
is may change and amend eir maintenance schedule accordingly.
Model Light/Medium use Heavy use
Variheat
AA600 - AA1500 1 to 2 visits per year 2 to 3 visits per year
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