Nordyne 13+ SEER Extra High Effi ciency Split System User And Installation Manual

Outdoor Air Conditioner

User’s Information and Installation Instructions

13+ SEER Extra High Effi ciency Split System

These units have been designed and tested f or
capacity and effi ciency in accordance with A.R.I.
Standards. Split System Air Conditioning units
are designed for use with a wide variety of f ossil
fuel furnaces, electric furnaces, air handlers, and
evaporator coil combinations.

These instructions are primarily intended to
assist qualifi ed individuals experienced in the
proper installation of heating and/or air condi­tioning appliances. Some local codes require
licensed installation/service personnel for this
type of equipment. Read all instructions carefully
before starting the installation.

USER’S INFORMATION

IMPORTANT

Read this owner information to become familiar
with the capabilities and use of your appliance.
Keep this with literature on other appliances
where you have easy access to it in the future.

If a problem occurs, check the instructions
and follow recommendations given. If these
suggestions don’t eliminate your problem, call
your servicing contractor.

OPERATING INSTRUCTIONS
T o Operate Your Air Conditioner for

Cooling —

1. Set the thermostat system switch to COOL
or AUTO and the thermostat fan switch to
AUTO. (See Figure 1)

2. Set the thermostat temperature to the
desired temperature level using the
temperature selector. Please refer to the
separate thermostat user’s manual for
complete instructions regarding ther­mostat programming. The outdoor unit
and indoor blower will both cycle on and
off to maintain the indoor temperature at
the desired cooling level.

SYSTEM SWITCH

FAN SWITCH

TEMPERATURE SCALES

Figure 1. Typical Thermostat

TEMPERATURE
SELECTOR

To Operate Your Furnace for
Heating —

1. Set the thermostat system switch to HEAT
or AUT O and the thermostat f an s witch to
AUTO. (See Figure 1)

1. Regularly:

a. Clean or replace the indoor air fi lter at the

start of each heating and cooling season,
and when an accumulation of dust and dirt
is visible on the air fi lter.

2. Set the thermostat temperature to the
desired temperature level using the
temperature selector. Please refer to
the separate user’s manual for complete
thermostat programming instructions. The
furnace and indoor blower will cycle on and
off to maintain the indoor temperature at
the desired heating level.

T o Shut Off Y our Air Conditioner —

Set the thermostat system switch to OFF
and the thermostat fan switch to AUTO. (See
Figure 1)

The system will not operate, regardless of the
thermostat temperature setting.

To Operate the Indoor Blower
Continuously —

Set the thermostat fan switch to ON (See
Figure 1)

b. Remove any leaves and grass clippings

from the coil in the outdoor unit, being
careful not to damage the aluminum fi ns.

c. Check for any obstruction, such as twigs,

sticks, etc.

d. Certain models have external panels

fabricated from a premium grade of
stainless steel designed to inhibit cor­rosion. For such units, if the unit is
located in a coastal region or other area
subjected to high concentrations of salt,
then the unit should be hosed off after
storms and monthly otherwise to maintain
its new appearance.

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.

The indoor blower will start immediately, and
will run continually until the fan switch is reset
to AUTO.

The continuous indoor blower oper ation 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 fi replace operation.

T o 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.

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
for Cooling” and “T o Operate Y our Furnace
for Heating.”

b. The unit disconnect fuses are in good

condition, and the electrical power to the
unit is turned on.

1. GENERAL INFORMATION

Read the following instructions completely before
performing the installation.

2

Condensing Unit Section — Each condens­ing 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, carefully read the instal­lation instructions provided with the indoor coil
or air handler.

Liquid and Suction Lines — Refrigerant grade
copper tubing should be used when installing the
system. Refrigerant suction line tubing should
be fully insulated.

W ARNING:

Ensure all electrical power to the unit
is off prior to installing or servicing
the equipment. Failure to do so may
cause personal injury or death.

3. SITE PREPARATION

Unpacking Equipment — Remove the card-

board carton and User’s Manual from the
equipment. T ake care not to damage the tubing
connections when removing the carton.

Inspect for Damage — Inspect the equipment
for damage prior to installing the equipment at
the job site. Ensure coil fi ns are straight and, if
necessary, comb fi ns to remove fl attened and
bent fi ns.

Field Connections for Electrical Power
Supply — All wiring must comply with current

revisions of the National Electrical Code
(ANSI/NFPA 70) and with applicable local
codes having jurisdiction. The minimum size of
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 per­formed by qualifi ed, trained personnel thoroughly
familiar with this type of equipment. Under 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 equipment. Read and thoroughly understand
the instructions provided with the equipment
prior to performing the installation and opera­tional checkout of the equipment.

Preferred Location of the Outdoor Unit at the
Job Site — Conduct a survey of the job site to

determine the optimum location for mounting
the outdoor unit. Ov erhead obstructions, poorly
ventilated areas, and areas subject to accumula­tion of debris should be avoided. The outdoor
unit should be installed no closer than 18 inches
from the outside walls of the facility and in an
area free from overhead obstructions to ensure
unrestricted airfl ow through the outdoor unit.

Facility Prerequisites — Electrical power
must be supplied to the equipment. 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.

Minimum Circuit Ampacity — Electrical wiring
to the equipment must be compatible and in
compliance with the minimum circuit ampacity
listed on the outdoor unit data label.

Maximum Fuse/Circuit Breaker Size — Circuit
protection for the outdoor unit must be compat­ible with the maximum fuse/circuit breaker siz e

listed on the outdoor unit data label.

Brazing Operations — Installation of equipment
may require brazing operations. Safety codes
must be complied with. Safety equipment (e .g.;
safety glasses, work gloves, fi re extinguisher,
etc.) must be used when performing brazing
operations.

4.

INSTALLING THE OUTDOOR UNIT

Slab Mount — The site selected f or a slab mount

installation requires a stable foundation and one

3

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.

ference between the indoor and outdoor sections
should not exceed 20 feet.

Filter Dryer Installation — A fi lter dryer is
provided with PS series models only 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 dr yer must be installed in strict
accordance with the manufacturer’ s installation
instructions.

For all other series models, installing a fi lter
dryer is optional. Ho wev er , it is good installation
practice to install a fi lter dryer when replacing
the evaporator and/or condenser of a system.
When installing, the fi lter dryer must be installed
in strict accordance with the manufacturer’s
installation instructions.

5. 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.

6. CONNECTING REFRIGERANT
TUBING BETWEEN THE INDOOR
AND OUTDOOR UNIT

General — Once outdoor and indoor unit place-

ment has been determined, route refrigerant
tubing between the equipment in accordance with
sound installation practices. Refr igerant 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. T ubing should
be kept clean of foreign debris during installation
and installation of a liquid line fi lter drier is rec­ommended if cleanliness or adequacy of system
evacuation is unknown or compromised. 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 dif-

Optional Equipment — Optional equipment
(e.g.: liquid line solenoid valv es, etc.) should be
installed in strict accordance with the manufac­turer’s installation instructions.

7. MAKING ELECTRICAL
CONNECTIONS

W ARNING:

T urn 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.

Wiring Diagram/Schematic — A wiring dia-

gram/schematic is located on the inside cover
of the electrical box of the outdoor unit. The
installer should become familiar with the wiring
diagram/schematic before making an y electrical
connections to the outdoor unit.

Outdoor Unit Connections — The outdoor
unit requires both power and control circuit
electrical connections. Refer to the unit wir ing
diagram/schematic for identifi cation and location
of outdoor unit fi eld wiring interfaces.

Control Circuit Wiring — The outdoor unit is
designed to operate from a 24 V AC Class ll control
circuit. Control circuit wiring must comply with

4

the current provisions of the National Electrical
Code (ANSI/NFP A 70) and with applicab le local
codes having jurisdiction.

Thermostat Connections — Thermostat con­nections should be made in accordance with the
instructions supplied with the thermostat, and
with the instructions supplied with the indoor
equipment.

Electrical Power Wiring — Electrical power
wiring shall comply with the current provisions
of the National Electrical Code (ANSI/NFP A 70)
and with applicable local codes having jurisdic­tion. Use of rain tight conduit is recommended.
Electrical conductors shall have minimum circuit
ampacity in compliance with the outdoor unit rat­ing label. The facility shall employ electrical circuit
protection at a current rating no greater than that

indicated on the outdoor unit rating label.

temperature setpoint to its highest setting. Prior
to applying electrical power to the outdoor unit,
ensure that the unit has been properly and
securely grounded, and that power supply con­nections have been made at both the facility
power interface and outdoor unit.

Outdoor Unit — Ensure the outdoor coil and
top of the unit are free from obstructions and
debris, and all equipment access/control panels
are in place.

Using extreme caution, apply power to the unit
and inspect the wiring for evidence of open,
shorted, and/or improperly wired circuits.

Functional Checkout:

CAUTION:

Disconnect Switch — An electrically compatible

disconnect switch must be within line of sight of
the outdoor unit. This switch shall be capable of
electrically de-energizing the outdoor unit.

Optional Equipment — Optional equipment
requiring connection to the power or control
circuits must be wired in strict accordance with
current provisions of the National Electrical Code
(ANSI/NFP A 70), with applicable local codes hav­ing jurisdiction, and the installation instructions
provided with the equipment. Optional Equip­ment (e.g.: liquid line solenoid valves , hard start
kits, low suction pressure cutout switch kit, high
pressure cutout switch kit, refrigerant compres­sor crankcase heater, etc.) should be installed
in strict accordance with the manufacturer’s
installation instructions.

8. STARTUP AND CHECKOUT

If equipped with a compressor
crankcase heater , wait 24 hour s prior
to performing a function check out to
allow for heating of the compressor
crankcase. Failure to comply may
result in damage and could cause
premature failure of the system.

Indoor Blower — Set the thermostat function

switch to COOLING and the fan switch to ON.
Verify that the indoor blower is operating and
that airfl ow is not restricted. Set the fan switch
back to AUTO.

Positive Temperature Coeffi cient Resistor
(PTCR) — (select models) A PTCR is factory

installed and located on the control panel of the
outdoor unit. The PTCR is a soft start device for
use with reciprocating compressors. If a hard
start kit is needed on this model the soft star t
(PTCR) must be removed fi rst.

W ARNING:

Ensure electrical power to the unit is off
prior to performing the following steps.
Failure to do so may cause personal
injury or death.

Air Filters — Ensure air fi lters are clean and in

place prior to operating the equipment.
Thermostat — Set the room thermostat function

switch to OFF, fan switch to AUTO, and move

Low-Pressure Switch — A low-pressure
switch is factory-installed in select models only.
If provided, this switch is located in the suction
line internal to the outdoor unit. The switch is
designed to protect the compressor from a loss
of charge. Under normal conditions, the switch is
closed. If the suction pressure f alls below 5 psig,
then the switch will open and de-energize the
outdoor unit. The switch will close again once the
suction pressure increases above 20 psig.

5

Comfort AlertTM Diagnostics (Select Models)

TM

— The Comfort Aler t

diagnostics is a break­through innovation for troubleshooting heat
pump and air conditioning system failures. The
module installs easily in the electrical box of
the outdoor unit near the compressor contac­tor. By monitoring and analyzing data from the

®

Copeland Scroll compressor

and the thermostat
demand, the module can accurately detect the
cause of electrical and system related failures
without any sensors. A fl ashing LED indicator
communicates the ALERT code and guides the
service technician more quickly and accurately
to the root cause of a problem.

NOTE: This module does not provide safety
protection! The Comfort Alert module is a
monitoring device and cannot shut down the
compressor directly.

LED Description (See Figure 2)

POWER LED (Green): indicates voltage is pres­ent at the power connection of the module.

ALERT LED (Yellow): communicates an
abnormal system condition through a unique
fl ash code. The ALER T LED will fl ash a number
of times consecutively, pause and then repeat
the process. The number of consecutive
fl ashes, defi ned as the Flash Code, correlates
to a particular abnormal condition. Detailed
descriptions of specifi c ALERT Flash Codes are
shown in Table 1 of this manual.

TRIP LED (Red): indicates there is a demand
signal from the thermostat but no current to the
compressor is detected by the module. The TRIP
LED typically indicates the compressor protector
is open or may indicate missing supply power
to the compressor.

The scroll compressor’s run (R), common (C) and
start (S) wires are routed through the holes in the
Comfort Alert

TM

module marked “R,” “C” and “S.”
The common (C) wire need not be routed through
the module for it to operate properly.

24 V AC Power Wiring — The Comfort Alert

TM

module requires a constant nominal 24 VAC
power supply. The wiring to the module’s R and
C terminals must be directly from the indoor unit
or thermostat. The module cannot be powered by
the C terminal on a defrost board or other control
board without experiencing nuisance alerts.

Comfort Alert

L

C

Y

R

C

R
L
Y

24 Volt Field
Connections

LPS

CC

Figure 3. 24VAC Comfort AlertTM

Wiring Diagram

Figure 2. Comfort Alert

6

TM

Diagnostics Module