Specifications

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Unit Location
Large Vertical Water Source Heat Pump units are easily
locatedinequipmentroomsoroor-by-oorinstallations.
They can be applied to all building types where it is ad-
vantageous to extend the water source heat pump concept to
larger or core areas.
Locate the unit in an area that allows for easy removal of
thelterandaccesspanels,andhasenoughspaceforservice
personneltoperformmaintenanceorrepair.Providesufcient
room to make water, electrical and duct connections.
Figure 1: Service Clearances
The contractor should make sure that access has been pro-
videdincludingclearancefor2"(51mm)thicklterbrackets,
ductcollarsandttingsatwaterandelectricalconnections.
Allow adequate room around the unit for a condensate trap.
The unit can be installed “free standing” in an equipment
room. Generally, the unit is located in a separate room with
the non-ducted return air facing the return air intake.
Alternatively, the unit can have a ducted return air. It is
recommended that the unit be located on vibration isolators to
reduce any vibration (see Figure 3, page 5).
1. A 24" (610 mm) minimum clearance is required on the
return air, control box and piping sides. However, a 36"
(914 mm) clearance allows for easier serviceability.
2. A 12" (305 mm) minimum clearance is required on Side
A to gain access to panel to remove locking collar for shaft
removal.
3. A 6" (152 mm) clearance is required on Side B to remove
screws holding top panel.
4. Top clearance is required for fan shaft removal.
5. Some codes dictate a 60" (1524 mm) clearance above
the control box which could be violated with a ducted
return. Check your local codes.
Fan Deck Arrangements
Six fan discharge arrangements and two piping arrange-
mentsareavailable.Withthereturnairsidedenedasthe
“front” of the unit, the water piping connections may be
right-hand (side) or left-hand. All units have a single supply
andreturnwaterconnectionwithacopperFPTtypetting
that protrudes through the unit casing for easy connection.
The condensate connection is also a copper FPT type and is
located on both sides of the unit. The unused connection is
plugged.
Control Box
Location
Piping
Location
Fan Motor
24"
(610 mm)
Side B
Side A
24" (610 mm)
The main control panel is located in the center front of
the unit. The fan discharge is top front, and the fan motor
is always located at the piping end. Unit sides opposite the
control panel and opposite the piping side may be up against
walls and still allow for service and maintenance through the
remaining access panels.
Figure 2: Fan Deck Arrangements
IMPORTANT
Fan
Motor
Rear (or Top)
Discharge
Right-Hand Piping
(Upblast-Rear)
Front (or Top)
Discharge
Right-Hand Piping
(Upblast-Front)
Front (or Top)
Discharge
Left-Hand Piping
(Upblast-Front)
Rear (or Top)
Discharge
Left-Hand Piping
(Upblast & Rear)
Straight Horizontal
Discharge
Left-Hand Piping
(Top-Horizontal Discharge)
Straight Horizontal
Discharge
Right-Hand Piping
(Top-Horizontal Discharge)
Notes:
1. The hand of unit is determined by looking at the
return air (lter) side. The piping and electrical
connections are always made on the “hand”
side of the unit. The return air (lter) side is
considered the “front” of the unit.
2. The fan motor is always located at the piping/
electrical connection (hand) side of the unit.