7
IOM Instructions
HKV LArge CommerCiAL
Heat Controller, Inc.
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 perform
typical maintenance or repairs. HKV units are typically
installed in a floor level closet or in a small mechanical
room. Refer to Figure 1 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:
1. 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.
2. Provide access for fan and fan motor maintenance
and for servicing of the compressor and coils without
removal of the unit.
3. Provide an unobstructed path to the unit within the
closet or mechanical room to enable removal of the
unit if necessary.
4. Provide access to water valves and fittings, and
screwdriver access to the unit side panels, discharge
collar and all electrical connections
Figure 1: 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. Heat
Controller will not warrant, or accept responsibility for
products which fail, have defects, damage or insufficient
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.
•
On units with multiple fan outlets a “pair of pants”
duct connection must be used for proper air balance
and distribution and to prevent fan oscillation.
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.
1
/
4
”
