31
Typical piping and wiring
Return
Air
Power
Thermostat
Wiring
Compressor
Access Panel
Balancing Valve
(field-installed
and calibrated
accessory)
Field-supplied
stainless steel
braid hose
with integral
“ J” swivel
Low Pressure
Drop Water
Control Valve (Optional)
(field-installed
accessory)
Ball Valve with optional
integral P/T plug
(typical for supply and
return piping)
Water
Out
Water
In
Building
Loop
Supply Air
Flexible
Connection
Accessory
Electric Heat
(if applicable)
Filter Access
Return Loop
Supply Loop
Water Out
Water In
Integral hanger support-
pre-attached in factory
Field-supplied transition to
minimize pressure loss
3/8" threaded rods
(by others)
Return Air
(Ductwork
not shown)
Thermostat
Wiring
Power Wiring
Balancing Valve (Field
installed and calibrated
accessory)
Accessory
stainless steel
braid hose
with integral
“J” swivel
3/8" Threaded
Rod (by others)
Supply Air
Insulated supply duct with
at least one 90 degree elbow
to reduce air noise
(field supplied)
Flexible
Connection
Vibration Isolator
(white compressor end
and red blower end)
Washer
(by others)
Double Hex Nuts
(by others)
Unit Power
Unit Power
Disconnect
Unit Hanger
Low Pressure Drop Water
Control Valve (optional) or
(field-installed accessory)
Ball Valve Accessory with optional
integral P/T plug (typical for supply
and return piping)
Water Out
Water In
TYPICAL INSTALLATION — 50RHC UNITS
TYPICAL VERTICAL INSTALLATION — 50RVC UNITS
NOTE: Ball valve with inte-
gral
pressure
temperature
plug recommended.