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17
T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y
C o n s o l e s
R e v. : 3 0 J u n e , 2 0 0 8 B
w w w. c l i m a t e m a s t e r. c o m
Water Coil Low Temperature Limit Setting
For all open loop systems the 30°F [-1.1°C] FP1 setting
(factory setting-water) should be used to avoid freeze
damage to the unit. See “Low Water Temperature Cutout
Selection” in this manual for details on the low limit
setting.
Ground-Loop Heat Pump Applications
�
CAUTION!
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CAUTION!
Many units installed with a factory or field
supplied manual or electric shut-off valve.
DAMAGE WILL
OCCUR
if shut-off valve is
closed
during unit operation. A
high pressure switch must be installed on the heat pump side
of any field provided shut-off valves and connected to the
heat pump controls in series with the built-in refrigerant circuit
high pressure switch to disable compressor operation if water
pressure exceeds pressure switch setting. The field installed
high pressure switch shall have a cut-out pressure of 235
psig and a cut-in pressure of 190 psig. This pressure switch
can be ordered from ClimateMaster with a 1/4” internal flare
connection as part number 39B0005N01.
NOTICE!
Ground-water applications for commercial
buildings with more than 2-3 units should include a plate
frame heat-exchanger to isolate the heat pumps from the
ground-water and confine heat exchanger cleanings to one
location and lessen maintenance. Direct use of ground-water
may increase the frequency of heat pump maintenance and
may shorten life expectancy.
Summary of Contents for CCE07
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