
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Fig. 2B — Typical Water Loop (Boiler/Tower) System (50RWS360 Units Shown)
Air Pad or
Extruded
polystyrene
insulation board
Concrete
block or
brick
Unit Power
Disconnect
Thermostat Wiring
Expansion
Tank
Shut-Off
Valve
Boiler
Drains
Automatic
Balancing
Valve
P/T Plugs
Water In
Water Out
Solenoid
Valve
Optional
Filter
Load Heat Exchanger
Connections
Stainless Steel
Braided Hose
Fig. 3 — Typical Ground Water System (50RWS036-120 Units)