Unit Installation; Location Selection - Bosch QV Series Installation, Operation And Maintenance Manual

8 | Unit Installation

UNIT INSTALLATION
This section contains information on the following:
• Location Selection—page #8
• Protecting the Unit During Construction—page
#9
• Return and Supply Air Duct Flanges
Preparation—page #9
• Mounting Vertical (VT) Units—page #9
• Configuring the Horizontal Supply Air
Orientation—page #9
• Mounting Horizontal (HZ) Units—page #10
• Installing the Hanging Bracket Kit—page #11
• Condensate Drain—page #12
• Duct System—page #12
• Piping—page #13
• Electrical—Power Supply Wiring—page #14
• Electrical—Low-Voltage Wiring—page #15
• Specific Application Considerations—page #19
• Water Quality Considerations—page #23
• Post-Installation System Checkout—page #25
• Pre-Start-Up—page #25
• Start-Up—page #26
• Commissioning—page #26
WARNING: This product is to be installed,
serviced, and uninstalled by professionals
only.
NOTICE: Do not use QV series units for
temporary heating, air conditioning or
ventilation during construction, especially
when plastering, sanding or painting. Care
should be taken to avoid introduction of
dust, paint, or debris into the air coil.

LOCATION SELECTION

Unit location selection is very important for proper
installation, functioning, and ease of servicing.
When selecting a location for the unit, the
following conditions must be met:
• Location must be indoors.
• The ambient temperatures must be maintained
above freezing.
• Location must be isolated from sleeping areas,
private offices, and other acoustically sensitive
spaces.
8733829041 (2021/07)
• Mount the unit using an adequate slope of the
condensate lines to allow for proper drainage.
If an appropriate slope cannot be achieved, a
field-supplied condensate pump may be
required.
• On horizontal units, adequate room must be
below the unit level for the condensate drain
trap and avoid placing the unit above piping,
ducting, and electrical lines to facilitate future
removal and replacement of unit.
• Sufficient space for duct connection must be
available. Do not allow the weight of the duct
work to rest on the unit.
• Adequate clearance for filter replacement and
drain pan cleaning must exist. Do not allow
piping, conduit, etc. to block filter access.
• Sufficient access to allow maintenance and
servicing of the fan and fan motor, compressor
and coils must be allowed. Removal of the
entire unit from the closet should not be
necessary.
• An unobstructed path to the unit within the
closet or mechanical room must be present.
Space should be sufficient to allow return air
to freely enter the unit.
• Ready access to water valves, fittings, and
screwdriver access to unit side panels,
discharge collar, and all electrical connections
must be provided. Note: Where access to side
panels is limited, pre-removal of the control
box side-mounting screws may be necessary
for future servicing.
NOTICE: QV series units are not approved
for outdoor installation; therefore, they
must be installed inside a structure in a
conditioned space.
DO NOT locate in areas that are subject to
freezing or areas subject to temperature or
humidity extremes. Units must be installed
in a conditioned space that is not subject to
extremes of temperature or humidity to
avoid cabinet sweating and/or equipment
damage.
NOTICE: DO NOT place the unit above
supply piping.
Subject to change without prior notice
QV Series Heat Pumps
QV Series Heat Pumps