Nortek iQ Drive Installation Instructions Manual

Outdoor Air Conditioner
Installation Instructions
Variable Speed Ultra-High SEER Split System
These units have been designed and tested
for capacity and effi ciency in accordance with
ARI standards. These outdoor air conditioning
units are designed for use exclusively with
select NORDYNE G6 gas furnaces and select
NORDYNE B5 air handlers equipped with
dedicated matched indoor coils.
These instructions are primarily intended to
assist qualifi ed individuals experienced in the
proper installation of Heating and Air Condition-
ing equipment including the iQ Drive
Local codes may require licensed installation/
service personnel for this type of equipment.
Read all instructions carefully before starting
the installation.
IMPORTANT NOTE
This equipment is one part of a total system
designed for maximum effi ciency, adequate
capacity and total comfort. The system must
function as intended. Under no circumstances
any part of the system may be substituted with
other components.
TM
THE iQ DRIVE SYSTEM
The iQ Drive Air Conditioning System features
fully variable speed compressor technology
and variable speed indoor and outdoor motors.
The system provides variable cooling capacity
as needed modulating over a fi ve degree F
temperature range. It operates near the nominal
rated capacity at the thermostat set point and
modulates as temperature difference between
set point and room temperature changes. The
system may run at additional 18% capacity
to provide rapid cooling and modulates down
to minimum capacity if the room temperature
reaches 2 degree F below set point, then it turns
off if room temperature drops more than 2 degree
F below set point. The system has a built-in
humidity control that will activate a humidifi er
equipment (if supplied), and reduces blower
speed if indoor relative humidity is greater than
set point (default set at 60%).
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The iQ Drive System consists of an outdoor
unit, indoor unit, controller Thermostat and
connecting lines.
1. The Outdoor Unit:
The outdoor section consists of large heat
exchanger surface, Inverter motor Drive,
Brushless motor type rotary compressor
and an integrated drive brushless fan
motor coupled with a specially designed
fan blade, in addition to refrigerant valves
TM
System.
housed in sturdy attractive chassis.
2. The Indoor Unit:
The matched indoor coil may be a stand
alone cased coil intended to be installed
in NORDYNE G6 Model Gas Furnaces or
may be part of a dedicated NORDYNE B5
Model Air Handler.
The indoor coil is equipped with Electronic
Expansion Valve to precisely control
refrigerant fl ow over the wide range of
system capacity modulation.
For the stand alone dedicated cased
coil in gas furnace, a Furnace Blower
Conversion Kit is required to allow the
addition of required system components
such as the Integrated Drive Brushless
Indoor Blower Assembly, Interface Board,
upgraded transformer and The Coil Kelvin
Controller.
Consult Installation Instructions provided
with the Indoor Coil and the Furnace Blower
Conversion Kit for details.
For the dedicated Air Handler, the matched
coil and all required components are
included. Consult Installation Instructions
provided with the Air Handler Unit for
details.
3. System Controller Thermostat:
The system controller is the master
component that communicates with
and controls the inverter driven system
components.