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5.2 Protecting the Unit During Construction
Once the unit is properly positioned on the job site, cover it with
either a shipping carton, vinyl film, or an equivalent protective
covering. Cap opens ends of pipes stored on the job site. This
precaution is especially important in areas where painting,
plastering, or spraying of fireproof material, etc. is not yet
complete. Foreign material that accumulates within the units can
prevent proper start-up and require costly clean-up operations.
Before installing any of the systems components, be sure to
examine each pipe, fitting valves and remove any dirt or foreign
material found in or on these components.
NOTICE
Equipment should never be used during construction due to
likelihood of wall board dust accumulation in the air coil of the
equipment that permanently affects the performance and
may shorten the life of the equipment.
5.3 Return and Supply Air Duct Flanges Preparation
RL heat pumps feature fold-out return and supply air duct
flanges. These fold-out flanges come folded in from the factory to
allow the heat pumps to more easily fit through doorways and
other tight spaces, and also to prevent damage in shipping and
handling.
Following installation of the heat pump, fold out all fold-out
flanges to ensure that return and supply air flow is not
obstructed. These flanges can be easily folded using standard or
duckbill pliers. Once folded out, these flanges can be used to
support light duct work loads.
5.4 Mounting Vertical (VT) Units
In order to minimize vibration transmission from the unit to the
building structure mount the RL Series vertical units on a
vibration absorbing pad slightly larger than the unit base. (See
Fig. 2.)
It is generally not necessary to anchor the unit unless required by
local code. All major service access for the RL Series vertical
models is from the front side of the unit. When installing the unit
in a confined space such as a closet, ensure that the service panel
screws are accessible, that the filter can be replaced without
damage, and that water and electrical connections are
accessible. For models with a unit-mounted disconnect switch,
make sure the switch can be easily seen and operated.
To reduce sound transmission, install units using flexible
electrical conduit and hose kits. Care should be taken to ensure
that no part of the unit cabinet is touching part of the building
structure.
RL Series Heat Pumps — 8733842393 (2024/05)
Fig. 2 Vibration Mounting Pad
5.5 Horizontal (HZ) Units
5.5.1 Configuring the Horizontal Supply Air Orientation
The supply air location on RL Series Horizontal units can be field
converted from end blow to straight through or vice-versa.
NOTICE
Blower configuration changes should be done prior to unit
being installed in the final location.
A
Fig. 3 End-Blow Orientation
Unit Installation
Vibration
Absorbing Pad
C
B
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