General Information; Safety Considerations - Nordyne R410-A User's Information And Installation Instructions Manual

The continuous indoor blower operation can be
obtained with the thermostat system switch set
in any position, including OFF.
The continuous indoor blower operation is
typically used to circulate the indoor air to
equalize a temperature unbalance due to a sun
load, cooking, or fireplace operation.
To Maintain Your Air Conditioner —
CAUTION:
!
Be certain the electrical power to the
outdoor unit and the furnace/air handler
is disconnected before doing the
following recommended maintenance.
1. Regularly:
a. Clean or replace the indoor air filter at the
start of each heating and cooling season,
and when an accumulation of dust and dirt
is visible on the air filter.
b. Remove any leaves and grass clippings
from the coil in the outdoor unit, being
careful not to damage the aluminum fins.
c. Check for any obstruction, such as twigs,
sticks, etc.
2. Before Each Cooling Season:
If the furnace/air handler blower motor and
the outdoor unit fan motor(s) have oil tubes
at the motor bearings, apply 10 drops of
SAE No. 20 motor oil to each oil tube.
! CAUTION:
Do not over-oil, or oil motors not
factory-equipped with oil tubes. The
compressor is hermetically "sealed"
and does not require lubrication.
3. Before Calling a Service Technician,
Be Certain:
a. The unit thermostat is properly set — see
"To Operate Your Air Conditioner
Cooling" and "To Operate Your Furnace
for Heating."
b. The unit disconnect fuses are in good
condition, and the electrical power to the
unit is turned on.
2

1. GENERAL INFORMATION

Read the following instructions completely be-
fore performing the installation.
CAUTION:
!
This unit uses refrigerant R410A. DO
NOT under any circumstances use any
other refrigerant besides R410-A in this
unit. Use of another refrigerant will
damage this unit.
Condensing Unit Section — Each condens-
ing unit is shipped with a refrigerant charge
adequate to operate the outdoor section with an
indoor matching coil or air handler, and 15 feet
of refrigeration line.
NOTE: DO NOT USE ANY PORTION OF THE
CHARGE FOR PURGING OR LEAK TESTING.
Matching coils and air handlers are shipped
with a small pressurized holding charge to
pressurize them to keep out contaminants. To
release the pressure, read the indoor section
installation instructions carefully.
Liquid and Suction Lines — Refrigerant grade
copper tubing should be used when installing
the system. Refrigerant suction line tubing
should be fully insulated.
Field Connections for Electrical Power
Supply — All wiring must comply with current
provisions of the "National Electrical Code"
(ANSI C1.) and with applicable local codes
having jurisdiction.
electrical conductors and circuit protection must
be in compliance with information listed on the
outdoor unit data label.

2. SAFETY CONSIDERATIONS

Pressures within the System — Split system
air conditioning equipment contains liquid and
gaseous refrigerant under pressure. Installation
and servicing of this equipment should be ac-
complished by qualified, trained personnel thor-
oughly familiar with this type of equipment. Un-
for
der no circumstances should the Homeowner
attempt to install and/or service the equipment.
Labels, Tags, Precautions — When working
with this equipment, follow all precautions in the
literature, on tags, and on labels provided with
The minimum size of