York YCAS0098EB, Installation Operation & Maintenance, Page: 173 / 184

173
JOHNSON CONTROLS
FORM 201.18-NM7
PROCEDURE
WEEKL
Y
QUARTERL
Y
SEMI
-ANNUALL
Y
YEARL
Y
EVER
Y
__
_
HOURS
Check oil level in oil separator sight glass
X
Check liquid line sight glass / moisture indicator
X
Record system operating pressures and temperatures
X
Check programmable operating setpoints and safety cutouts and assure they are correct for particular application.
X
Check condenser coils for dirt/debris and clean if necessary
X
Check compressor superheat on evaporator and economizer TXV’
s; Check condenser and economizer subcooling
1
X
Check compressor and cooler heaters for operation
X
Sample compressor oil and replace oil if necessary
1
X
Leak check the chiller
1
X
Disconnect power source and lock out; Check tightness of power wiring connections
1
X
MAINTENANCE
REQUIREMENTS
FOR
YORK
YCAS
SCREW
CHILLERS
*
* Reserved for customer use for any special site determined requirements.
1
This
procedure
must
be
performed
at
the
specified
time
interval
by
an
Industry
Certified
Technician
who
has
been
trained
and
qualified
to
work
on
this
type
of
YORK
equipment.
A
record
of
this
procedure
being
successfully
carried
out
must
be
maintained
on
file
by
the
equipment
owner
should
proof
of
adequate
maintenance
be required at a later date for warranty validation purposes.
9