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COMMISSIONING
PRE-START CHECK LIST
ELECTRICAL CHECK
1. Electrical installation has been carried out according to unit wiring diagram and the Supply
Authority Regulations.
2. size fuses or circuit breaker has been installed at the main switchboard.
3. Supply voltages as specified on unit wiring diagram.
4. All cables are properly identified and tight connected at the unit and check the tightness of all cable
connections.
5. the cables and wires are clear of or protected from pipework and sharp edges.
VISUAL CHECK
1. Clearances around unit including outdoor air entry and discharge openings and service
accesses.
2. Unit mounted as specified.
3. For loose or missing bolts or screws.
4. For refrigerant leaks in connections and components.
DUCTING
1. Connections flexible type, secure and detachable for service access.
2. Blower
drive
Pulley adjustment correct for expected air quantity and static pressure.
Belt tension correct.
3. Check that the Biloc Sheaves on both the blower shaft and the motor schaft are correctly fitted to the
bush and rotate without wobbling.
4. Ensure that the motor is securely bolted to the mounting plate parallel to the blower shaft.
5. Using a string line or straight edge ensure that both pulley grooves are correctly aligned.
6. Improper alignment of the pulleys and belt may cause vibration in the blower drive and result in
premature wear and noise.
10 mm maxi.
5 kg
90
For a quick check, make sure that the
small rope touch each end of the pulleys
as shown on drawing opposite.
Belt alignment
Belt tensioning
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