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All piping connections should be made using good plumbing
practices and in accordance with any and all local codes
that may apply. Note: It will be helpful to read the “Piping”
section on page eight.
Unit Piping Connection
Each heat pump is supplied with extended copper tubing on
the water-to-refrigerant coil and
1
/2" (12.7mm) OD tubing. The
connections are for both the supply and return water connections.
Shutoff/Balancing Valve
Each heat pump requires a shutoff valve on both the supply
and return lines for easy serviceability and removal if it
becomes necessary.
We suggest using our combination shutoff/balancing
valves installed in the field between the contractor’s piping
and the heat pump unit. The valve installed on the return line
acts as a balancing valve to adjust the proper water flow.
Each shutoff/balancing valve has
1
/2" FPT ⳯
1
/2" FPT
threaded connections.
Suggested Hose Kit Installation
Field installed piping can be brought up from the floor or
through the wall. Note: Make sure the pipes fit the confines
of the piping compartment of the heat pump unit. See Figure 5.
Attach the field installed combination shut/off balancing
valve to the building water supply and return piping. Next
add the female pipe adapter connection to unit supply and
return coil connection by sweating them in place using silver
solder.
Next, using the specified hose kit, screw the fixed end
into the shut-off/balancing valve. Remove the
1
/2" adapter
from the other end of the hose. Insert the adapter into the
female fitting. Using two crescent wrenches, one to hold the pipe
connection and the second to tighten the adapter, insert the
swivel end of the hose on the adapter and tighten. This
completes the hose connection to standard heat pump equipment.
Adding Motorized & Valve Assemblies
All console water source heat pumps can be field installed
with a motorized valve. All valves are mounted on the return
line of each unit. All valve assemblies terminate with
1
/2"-NPT threaded connections and will also accommo-
date factory supplied hose kits. When installing the hose
kits on valve assemblies, use the same method as outlined
in “Suggested Hose Kit Installation” above.
Note: All plumbing connections are made the same way
whether or not the unit has valve packages. Whether or not
you utilize our hose kits and shutoff/balancing valve all
piping connections will have to conform with all local piping
and building codes. The ability to remove the unit in order to
perform repairs is imperative.
Condensate Hose Connection
Each unit is supplied with a
3
/4" (19mm) I.D. clear vinyl
condensate hose internally trapped within the chassis. The
hose extends 14" (356mm) out of the chassis within the
piping compartment to reach the floor or the back wall.
Field condensate piping must enter within the confines of
the cabinet (back wall or floor) similar to the supply and
return piping. Slide the vinyl hose over the condensate pipe
and clamp it.
Control Box
Escutcheon
Plate
Compressor/Control
Box Access Cover
Wiring Diagram
Fan/Coil Section Access Panel
Condensate Line–14" (356mm) Clear Vinyl
Hose Clamp
5.0"
(127mm)
9.0"
(229mm)
Air Coil
Water Return
Water Supply
Junction Box
Flexible Hoses
Ball Valves
Water Connections
Note: Valves – Shut off Combination Balancing Valves,
Hoses – Supply Return, Condensate Drain Hose and 90
o
Elbows are all factory available as accessories, (to be
mounted in the field by others).
NOTE: Valves,
(shut-off combination
balancing valves),
Hoses, (supply and
return, condensate
drain hose), also 90
o
elbows are all factory
available as accesso-
ries, to be mounted
in the field by others.
All Pipe Fittings Are
To Be Field Installed
Figure 5. Hose kit installation (Field Installed)
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