MK Series Portable Chiller : Air-Cooled : HE INSTRUMENT
Page: 60
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: 317-881-1277
Service Department Fax: 317-885-8683
Email: service@AdvantageEngineering.com
6.1 WATER SYSTEM
A. MOTOR/PUMP ASSEMBLY: the
motor/pump assembly circulates
chilled fluid to the process loop.
The pump assembly is built of total
stainless steel to maintain water
quality (figure 6.1A).
B. FLOW SWITCH: the flow switch is
a paddle-type switch mounted in
the from process water line. The
primary function of the flow switch
is to monitor water flow. If the flow
drops 33%, the switch will stop the
refrigerant circuit. This protects the
evaporator from freezing due to
low flow (figure 6.1B).
C. FREEZESTAT: the freezestat aids in
protecting the evaporator from
potential freezing. The freezestat is
factory adjusted to 40°F. The
freezestat must be field adjusted for
operating with setpoints below
48°F (figure 6.1C).
6.2 REFRIGERATION SYSTEM
A. COMPRESSOR: hermetic or semi-
hermetic compressors take low
pressure/low temperature
refrigerant gas and compress the
gas into high pressure/high
temperature gas (figure 6.2A).
B. AIR COOLED CONDENSER: the air
cooled condenser removes BTU’s
from the compressed refrigerant
gas. The action causes the gas to
“condense” into a liquid state still
under high pressure. Air flow across
the condenser is achieved via a
motor driven fan assembly or
centrifugal blower (figure 6.2B).
C. FILTER-DRIER: the filter-drier
removes contaminants and
moisture from the liquid refrigerant
(figure 6.2C).
Flow switch
Figure 6.1B
Mechanical freezestat
Figure 6.1C
Hermetic compressor
Semi-hermetic compressor
Figure 6.2A
Pump Motor Assembly
Figure 6.1A
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