9
Installation, Operation & Maintenance - HKV Series
Vertical Location and Access
HKV units are not designed for outdoor installation.
Locate the unit in an indoor area that allows enough
space for installation and for service personnel to per-
form typical maintenance or repairs. HKV units are typi-
cally installed in a floor level closet or in a small mechani
-
cal room. Refer to Figure 2b for an illustration of a typical
installation. Install units with adequate clearance to allow
maintenance and servicing. Conform to the following
guidelines when selecting unit location:
• Provide adequate clearance for filter replacement and
drain pan cleaning. DO NOT block filter access with
piping, conduit or other materials. Refer to submittal
drawing for Vertical Unit Dimensions.
• Provide access for fan and fan motor maintenance
and for servicing of the compressor and coils without
removal of the unit.
• Provide an unobstructed path to the unit within the
closet or mechanical room to enable removal of the
unit if necessary.
• Provide access to water valves and fittings, and
screwdriver access to the unit side panels, discharge
collar and all electrical connections
Figure 2b: Typical Vertical Installation
Duct System Design & Installation Guidelines
The following application guidelines must be used when
installing HKV units. Failure to follow these guidelines
could result in unsatisfactory unit performance and/or
premature failure of some unit components. Comfort-
Aire/Century will not warrant, or accept responsibility
for products which fail, have defects, damage or insuffi
-
cient performance as a result of improper application.
• The duct system must be sized to handle the
airflow quietly and must not exceed the maximum
allowable External Static Pressure. To maximize
sound attenuation metal supply and return ducts
should include internal insulation or be of duct board
construction for the first 10 feet or end of first full-sized
elbow.
• Install a flexible connector in all supply and return
air ducts close to the unit to inhibit sound transfer to
the ducts.
• Do not install uninsulated duct in an unconditioned
space. The unit performance will be adversely affected
and damage from condensate can occur.
Installation
Control Box
Supply
Air
Supply
Air
Rear Return/Top Discharge shown
Refer to Dimensional Data pages for
other arrangements & dimensions
Ductwork not shown.
All components external
of unit are field supplied.
Return Air
Return Air
24 V Remote
Thermostat
Disconnect Box
Per NEC and
Local Codes
Plug water
in and out
connections
Water
In
Optional
Balancing
Valve
Return
Water
Supply
Water
Shutoff
Unions
Hoses
Optional
To
Drain
Water
Out
Condensate Internally
Trapped. Do not trap externally.
Pitch horizontal runs ¼” per foot.
(See
Figure 10
for Vent)
