Section 5 - Maintenance; Important; Compressors; Oil Charge - York YVAG012 Operation & Maintenance Manual

It is the responsibility of the equipment owner to
provide maintenance on the system.

IMPORTANT

If system failure occurs due to improper maintenance
during the warranty period, YORK will not be liable for
costs incurred to return the system to satisfactory
operation. The following is intended only as a guide
and covers only the unit components. It does not cover
other related system components which may or may not
be furnished by YORK. System components should be
maintained according to the individual manufacture's
recommendations as their operation will affect the
operation of the unit.

COMPRESSORS

OIL CHARGE

The oil used in these compressors is pale yellow in
color (POE oils). If one of the compressors in a
refrigerant system fails to rotate and a replacement is
needed, it is strongly recommended to clean the system
and refill the oil. Examine the oil color during the
process. If the oil darkens or exhibits a change in color,
this may be an indication of contaminants in the
refrigerant system.
Never use the rotary compressor to
pump the refrigerant system down into
a vacuum. Doing so will cause internal
arcing of the compressor motor which
will result in failure of compressor.
JOHNSON CONTROLS
Cooke Industries - Phone: +64 9 579 2185
SECTION 5 – MAINTENANCE

ADD TROPICAL PREHEATING

CONDENSER COILS

Dirt should not be allowed to accumulate on the con-
denser coil surfaces. Cleaning should be as often as
necessary to keep coils clean.

OPERATING PARAMETERS

Regular checks of the system should be performed to
ensure that operating temperatures and pressures are
within limitations, and that the operating controls are
set within proper limits.

CONDENSER FAN MOTORS

Condenser fan motors are permanently lubricated and
require no maintenance.

OVERALL UNIT INSPECTION

In addition to the checks listed on this page, periodic
overall inspections of the unit should be accomplished
to ensure proper equipment operation. Items such as
loose hardware, component operation, refrigerant leaks,
unusual noises, isolators, etc. should be investigated
and corrected immediately.
Email: sales@cookeindustries.co.nz
FORM NO.: 6U5M-A11M-NB-EN
Air conditioning unit start up, there will
be three hours compressor preheating,
preheating, after the completion of the
compressor to start
Exercise care when cleaning the coil so
that the coil fins are not damaged.
Web: www.cookeindustries.co.nz
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