York ARC 045, Installation Manual

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The person responsible for the building or property where the unit is installed must ensure that these
inspections are performed at the appropriate time. Likewise, this person should keep and maintain a log
book reflecting both planned and unplanned work by the Johnson Controls Inc. Authorised Technical
Assistance Service.
Task
Frequency
1 month 2 months 6 months Annual
Belts (indoor fan) X
Air filters X
Indoor coil (evaporator) X
Condensate tray and drain trap X
Outdoor coil (condenser) X
Outdoor air intake (accessory) X
Refrigerant circuit X
Electrical and mechanical operation X
Integrity of the unit structure and components X
Hot water coil (accessory) X
Gas heating (ARG/ARD Models) X
1.18.2 Maintenance tasks performed by specialised personnel
D A N G E R
• The unit has a remote control, which means that the fan turbine may start unexpectedly.
• Disconnect the general switch on the unit before removing any of its side panels.
Belts (indoor fan)
Check their condition and correct tensioning.
If it is necessary to replace the belts, they should be
the same type and size as the originals.
Tensioning of the belts and adjusting the pulley
All units incorporate single speed motors with belt
transmission for indoor ventilation.
1 Loosen the nuts -A-. Never loosen nuts -C-.
2 Tighten the belts by turning the screw -B- until the
belt moves: 20...23 mm.
3 Tighten the nuts -A-.
4 Check the tension of the belts twice during the first
24 hours of unit operations.
N O T E
The fan motor variable diameter pulley can be regu‐
lated in order to obtain the supply air flow desired.
Pulley adjustment (models 045/060/075:
1 groove; models 090: 2 grooves)
Loosen the nuts -A-. Never loosen the nuts -C-.
Loosen the belts by turning the screw -B-.
Installation manual 1
Regular maintenance tasks performed by specialised personnel 1.18
35