Installing The Outdoor Unit; Installing The Indoor Unit; Electrical Connections - Nordyne Two Stage R-410A Split System User's Information/Installation Instructions

Facility Prerequisites — Electrical power
supplied must be adequate for proper operation
of the equipment. The system must be wired and
provided with circuit protection in accordance
with local building codes and the National
Electrical Code.

INSTALLING THE OUTDOOR UNIT

Slab Mount — The site selected for a slab mount
installation requires a stable foundation and one
not subject to erosion. The slab should be level
and anchored (if necessary) prior to placing the
equipment on the slab.
Cantilever Mount — The cantilever mount
should be designed with adequate safety factor
to support the weight of the equipment, and for
loads subjected to the mount during operation.
Installed equipment should be adequately
secured to the cantilever mount and levelled
prior to operation of the equipment.
Roof Mount — The method of mounting should
be designed so as not to overload roof structures
nor transmit noise to the interior of the structure.
Refrigerant and electrical line should be routed
through suitably waterproofed openings to
prevent water leaking into the structure.

INSTALLING THE INDOOR UNIT

The indoor section should be installed before
proceeding with routing of refrigerant piping.
Consult the Installation Instructions of the indoor
unit (i.e.: air handler, furnace, etc.) for details
regarding installation.
CONNECTING REFRIGERANT
TUBING BETWEEN THE INDOOR
AND OUTDOOR UNIT
!
CAUTION:
This system utilizes R-410A refrigerant
with POE oil. When servicing, cover
or seal openings to minimize the
exposure of the refrigerant system
to air to prevent accumulation of
moisture and other contaminants.
General — Once outdoor and indoor unit
placement has been determined, route refrigerant
tubing between the equipment in accordance with
sound installation practices. Refrigerant tubing
should be routed in a manner that minimizes the
length of tubing and the number of bends in the
tubing. Refrigerant tubing should be supported in
a manner that the tubing will not vibrate or abrade
during system operation. Tubing should be kept
clean of foreign debris during installation. Every
effort should be made by the installer to ensure
that the fi eld installed, refrigerant containing
components of the system have been installed
in accordance with these instructions and sound
installation practices so as to insure reliable
system operation and longevity.
The maximum recommended interconnecting
refrigerant line length is 75 feet, and the
vertical elevation difference between the indoor
and outdoor sections should not exceed 20
feet. Consult long line application guide for
installations in excess of these limits.
Filter Dryer Installation — A fi lter dryer is
provided with the unit and must be installed in the
liquid line of the system. If the installation replaces
a system with a fi lter dryer already present in the
liquid line, the fi lter dryer must be replaced with
the one supplied with the unit. The fi lter dryer
must be installed in strict accordance with the
manufacturer's installation instructions.
Optional Equipment — Optional equipment
(e.g.: low ambient control, etc.) should be installed
in strict accordance with the manufacturer's
installation instructions.

ELECTRICAL CONNECTIONS

!
WARNING:
Turn off all electrical power at the main
circuit box before wiring electrical
power to the outdoor unit. Failure to
comply may cause severe personnel
injury or death.
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