Download V-Cube Installation, Operation and Maintenance

Appendix F: Extended Dormant Unit Maintenance Procedure
The following procedures must be applied to any unit
which is stored for a period exceeding one month, which
are required in order to maintain our warranty. Failure to
comply with the procedures outlined below may result in
damage and will void unit warranty.
1. Unit must be stored indoors in a clean, dry and tempered environment, heated in the winter and air
cooled in the summer. Ambient air conditions should
be from 50ºF to 75ºF with percentage RH from 10%
to 50%. The unit needs to be stored in a warehouse
(or some type of enclosure). Note that storing units
outdoors is contraindicated and will void our warranty.
2. Unit must be stored on a level surface with the
weight of the equipment evenly distributed through
its base. The unit location must be free from excessive vibration and accidental impacts.
3. Once the unit has been unloaded in its resting location, the plastic wrapping must be removed from the
unit by cutting along the corner edges in order to
perform proper inspections and maintenance on the
equipment. The plastic wrapping should be kept and
re-applied to the unit when the unit will finally be
shipped to the jobsite.
4. If applicable, a certified/qualified refrigeration technician should record refrigerant pressures on all compressors at time of storage. Each compressor must
maintain refrigerant pressure in the system.
5. If applicable, a certified/qualified refrigeration technician should check refrigerant pressure in each
compressor every three months. Refrigerant pressure
must be maintained in the system. If zero pressure
is found, this indicates a leak in the system. Leak(s)
must be identified and repaired. A holding pressure
must then be reinstalled.
VCES-V-CUBE-IOM-1A
6. Rotate blower impellers by hand every two months;
grease fan bearings as required following proper
practices. Do not over grease the bearings as this
may rupture the seals and lead to premature bearing
failure during operation.
7. Ensure that all unit doors are kept closed.
8. Continue above maintenance schedule until unit
start-up.
For all checks listed above please complete the Extended
Dormant Unit Maintenance Checklist below and send
a copy to the Venmar CES service department every six
months and when unit is put into service.
If the unit has been dormant for an extended period after
initial start-up, all start-up checks should be repeated before operating the unit. Refer to the V-Cube™ Start-up
Report and Checklist in Appendix C and complete these
checks. Failure to comply with the above recommendations may result in component failure and surface corrosion on the interior and exterior of the unit.
Please note that if the unit is being stored outdoors or
remains dormant for an extended period after initial
startup, this may result in condensation within the unit
which could result in premature degradation of the unit
and potential issues within the control panel. In this event,
the installation of a desiccant pouch in the control cabinet
is highly recommended, all ventilation ducts should be
capped/covered to prevent chimney effect, all liquid pipes
(water or glycol mixture) should be drained or capped
off if necessary and all peripheral electrical penetrations
should be properly sealed.
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