Advantage Engineering Maximum Instruction Manual page 18

MK Series Portable Chiller : Air-Cooled : HE INSTRUMENT
3.1 GENERAL
A. Failure to follow the factory required operations procedure may
adversely affect the unit's ability to adequately control process
temperature and may create a hazardous operating condition
which may result in serious operator injury and/or unit damage.
B. IMPORTANT: if this unit contains a hermetic or semi-hermetic
reciprocating compressor it is equipped with a crankcase heater on
the compressor. While the compressor is idle, the crankcase heater
prevents freon vapor from migrating to and condensing in the
compressor crankcase. If freon is allowed to condense in the
crankcase, it can be drawn into the cylinders upon start up. This
can cause catastrophic damage to the connecting rods, pistons,
and valve plates.
To avoid this, BEFORE THE UNIT IS STARTED, THE POWER
SUPPLY SHOULD BE APPLIED TO THE UNIT FOR AT LEAST 12
HOURS, OR UNTIL THE BOTTOM OF THE COMPRESSOR IS
WARM TO THE TOUCH.
If the power has been disconnected more than two hours, the
power should be applied for six hours before restarting. Power
should be applied to the unit continuously, except for service
purposes. The crankcase heater should be checked for proper
operation on a regular basis.
UNITS WITH SCROLL COMPRESSORS DO NOT HAVE A
CRANKCASE HEATER AND THIS PROCEDURE IS NOT
NECESSARY.
C. The OPERATIONS segment of this manual is divided into the
following sections:
3.2
3.3
3.4
Start up/operations - follow this segment to start the unit
after the initial install to the process system or to restart the
unit after reinstallation to the same or different process
system. This section includes information on system fill,
electric motor phasing (pump rotation) and process flow
adjustments.
Instrument - follow this segment to start up and operate
the instrument. This section includes information on
setpoint selection and adjustment, and feature
explanations.
Shut down procedure - follow this segment to shut down
the unit. This segment includes information on system shut
down, electrical power supply precautions, and
disconnection from system.
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729
Service Department Fax: 317-885-8683
Email: service@AdvantageEngineering.com
Fax: 317-881-1277
Page: 18