Instruction manual

9
Thermostat
Wiring
Water In
Water Out
Ball Valve with optional
integral P/T plug (typical for supply and
return piping)
Unit Power
Disconnect
Power Wiring
Insulated supply duct with
at least one 90 deg elbow
to reduce air noise
(field supplied)
Return Air
(Ductwork
not shown)
Supply Air
Unit Hanger
3/8” threaded rods
Unit Power
(by others)
Field-Supplied
Electric Heat
(if applicable)
Filter Access
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)
3/8" Threaded
Rod (by others)
Vibration Isolator
(white-compressor end and
red-blower end)
size 042-070
Washer
(by others)
Double Hex Nuts
(by others)
Return Loop
Supply Loop
Water Out
Water In
Flexible
Connection
Integral hanger support-
pre-attached in factory
Field-supplied transition to
minimize pressure loss
50RHR, RHS: Install screw as shown
Sizes 042-060
Optional on smaller sizes
50RHC: Screw must only be
1/2 long to
prevent damage
"
Fig. 4 — Typical Installation — 50RHC,RHR,RHS Units
UNIT HANGER ISOLATION DETAIL