Maintenance And Service - Carrier 39TF Manual

Maintenance And Service

The air conditioning unit is an equipment and users are suggested to record the daily operation data of the equipment and to
conduct regular maintenance and service.
1. The following inspections shall be conducted properly before the use of the equipment:
♦ Shall be inspected to ensure that the wiring is correct and that there are no abnormalities on the rotation of the fan as per
the operation and maintenance manual
♦ Shall be conducted to ensure that all the power supply lines and control lines are connected correctly, and that the
wiring adheres to the given wiring diagram. Reliability checks on grounding have to be conducted, and all the connection
terminals are to be checked and confirmed secured.
♦ The inspection shall be conducted to confirm whether all power supply lines and control lines are connected in position
and whether the wiring is correct according to the wiring diagram, whether the grounding is reliable and whether all
connection terminals are secure.
2. Daily maintenance during the equipment use:
Unit maintenance contents
1. The inspection shall be inspected to confirm
whether the power line (from the distribution cabinet
to the unit) is loose or damaged.
2. The inspection shall be conducted to confirm
whether the condensate discharge is normal.
3. The inspection shall be conducted to confirm
whether there is abnormal noise during the operation
of the unit.
4. The inspection shall be conducted to confirm
whether it is necessary to clean the air side of heat
exchanger (surface dust, sundries, etc.)
5. The inspection shall be conducted to confirm
whether the air strainer is dirty or blocked and whether
it is necessary to clean or replace the strainer.
3. We recommend the following maintenance and service methods for the equipment which is not used for a long time
♦ In case that the unit does not operate for a long time or does not operate in winter, the power must be turned off and the
water shall be discharged from the water system and the steam coil of the unit.
♦ If necessary, the maintenance and service may be conducted according to the pre-use maintenance and service methods
of the equipment.
Note
1. User service: mandatory inspection - recommended inspection - ★
2. Vulnerable parts required for the service shall be purchased from CARRIER.
3. The service methods apply to the cycle during normal use and the arrangement shall be made based on actual conditions in case of use in bad conditions.
AIR HANDLING UNIT
Standard service cycle
Monthly Quarterly Half-yearly
★
●
★
●
★
●
★
●
★
Remarks
Is the installation conducted according to the pipe connection
diagram? Is it dirty or blocked? Is the drainage smooth? Is there
any overflow, etc. due to this?
For instance, sharp metal friction sound, whistlers, obvious clash
or resonance, significant electromagnetic noise (disgusting) and
other abnormal noise.
Spaces among fins are full of dust and there are sundries
attached on the inlet side of the coil, etc.
The differential pressure alarm value and the scale value in the
differential pressure gauge reach the
final resistance value, etc.
21
CARRIER