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Drawing 4-9: 50PSW or GSW Unit - External
Pumps* / Cooling with Chilled Water (Fan Coils)
Chilled Water
R
Y
Water-to-Water Unit
Cooling
Changeover
Bryant Geothermal Heat Pump Systems
Buffer Tank
Hot Water
Aqua-Stat
Field installed
relay and wiring
Buffer Tank
*Wiring assumes that source pumps and load pumps will be
Aqua-Stat
energized when compressor is energized. Fan coil wiring
not shown.
G
O
W
AL1
Switch
Water-to-Water System Design Guide
Part IV: Controls / Wiring Diagrams
14Sep07
C
A
67
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