Section 4:
Operating Features & Functions
Copyright © 2011 Haskris Company
28
www.haskris.com
Version R1600-X-R407C-XXX Instruction Manual Rev00
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4
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4.4
.4
.4
.4 High and Low Refrigerant Pressure Controls
High and Low Refrigerant Pressure Controls
High and Low Refrigerant Pressure Controls
High and Low Refrigerant Pressure Controls
The refrigerant pressure controls (Figure 4.4) are located in front of each
compressor on both sides of the unit. The pressure controls prevent the compressors
from operating at unsafe pressures. The controls should only be adjusted by a
Haskris Approved Technician. This technician should install refrigerant pressure
gauges on the high and low-side of the refrigeration system in order to make
adjustments.
4.4.1
Low-Pressure Cut-Out
This control provides an added level of freeze-protection and serves as a low-
pressure cutout of the refrigeration compressors in case of a refrigerant leak, or a
restriction in the refrigeration circuit. The low-pressure cutout will automatically
reset when the refrigerant pressure increases back to normal.
4.4.2 High-Pressure Cut-Out.
Model R1600 includes a high-refrigerant pressure safety cutout with manual
manual
manual
manual reset.
The high-pressure cutout will shut down the compressors when there is insufficient
air flow through the air-cooled condenser.
PRESSURE CONTROL REGULATES THE PERFORMANCE OF THE REFRIGERATION
COMPRESSORS: If one or both of the compressors are not operating or if the
Figure 4.4 Pressure Control
Figure 4.4 Pressure Control
Figure 4.4 Pressure Control
Figure 4.4 Pressure Control
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