6
Cold water
(Supply)
Hot water
(Supply)
Water heater
hook-up kit with
drain valve
from Desuperheater
to Desuperheater
Desuper-out
Isolation
Valves
(by others)
Desuper-in
Desuperheater Option
The desuperheater option is a heat
recovery system packaged within
the water-to-water unit. This option
captures heat energy from the heat
pump for considerable cost savings
all year. Since it is active in either
operating mode, it can provide hot
water at a reduced cost while in
heating or virtually free hot water
while in cooling.
Standard equipment includes:
q Desuperheater (heat
exchanger)
q Circulating pump
q Entering water temperature
detector (125 F stops pump)
q Discharge refrigerant
temperature detector (145 F
starts pump)
q Fuse
q Water heater hook-up kit
The unit employs a circulating pump
to move water through a double wall
heat exchanger. It then returns the
heated water to the water tank. This
water is heated by superheated re-
frigerant discharge gas from the
compressor. This heat energy can
now be utilized as a cost savings in
water heating.
Circulating Pump
The pump is a circular, single stage
open system pump. Its specifica-
tions include:
q 1/25 HP (horsepower)
q 230 Volt / 60 Hertz / 1 phase
q 90 Watts
q .40 Amps
q 2865 rpm (revolutions per
minute)
q 2 MF (microfarad) / 400 Volt
capacitor
The pump contains a minimum fluid
temperature rating of 50 F, a maxi-
mum fluid temperature (open sys-
tem) of 140 F, and a maximum
working pressure of 145 psi.
Heat
Recovery
Features
and
Benefits
