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Field-Supplied
Electric Heat
(if applicable)
FilterAccess
ReturnLoop
Supply Loop
WaterOut
WaterIn
Integral hanger support-
pre-attached in factory
Field-supplied transition to
minimize pressure loss
3/8” threaded rods
(by others)
ReturnAir
(Ductwork
not shown)
Thermostat
Wiring
Power Wiring
Balancing Valve(Field
installed and calibrated
accessory)
Field-supplied
stainless steel
braid hose
with integral
“J” swivel
3/8” Threaded
Rod (by others)
SupplyAir
Insulated supply duct with
at least one 90 degree elbow
to reduce air noise
(field supplied)
Flexible
Connection
50RHR, RHS: Install screw as shown
Sizes 042-060
Optional on smaller sizes
Vibration Isolator
(white-compressor end
and red-blower end)
size 042-070
Washer
(by others)
Double Hex Nuts
(by others)
Unit Power
Unit Power
Disconnect
Unit Hanger
Low Pressure Drop Water
Control Valve(optional)
(field-installed accessory)
Ball Valvewith optional
integral P/T plug (typical for supply
and return piping)
WaterOut
WaterIn
50RHC: Screw must only be
1/2” long to
prevent damage
Fig. 2 — Typical Installation — 50RHE Units
UNIT HANGER ISOLATION DETAIL