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The SD(H) compressor unit desuperheater contains a water high temperature control. It is factory set
to 140°F. The desuperheater also contains a refrigerant low temperature limit switch, which is factory
set to 125°F. Also, a freeze protection control is designed to operate the circulating pump when water
temperature drops to 40°F, in order to provide water circulation independent of compressor operation.
The GSTE storage water heaters are available in 60, 80 and 119 US gallon capacities, all of which
have a 4.5 kW electric heating element, which provides the following recovery rates for increases in
water temperature.
ΔT
30
GPH
62
*ΔT in ºF; GPH in U.S. Gallons per hour.
The SD compressor unit and associated water piping must be in an
environment maintained at a temperature of at least 40°F to avoid the
potential freeze-up problems which can cause equipment failure and
damage to the occupied structure.
SD-410-QS (H) (06/15)
40
50
60
46
37
31
WARNING!
70
80
90
26
23
21
Page 27
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