Table of Contents
Advertisement
4.0 INSTALLATION
•
After adequate evacuation, open both service
valves by removing both brass service valve caps
with an adjustable wrench. Insert a 3/16" [5 mm]
or 5/16" [8 mm] hex wrench into the stem and turn
counterclockwise until the wrench stops.
•
If not already connected from evacuation process,
gauges must be connected at this point to check
and adjust charge.
IMPORTANT:
(especially scroll type) should never be used to
evacuate the air conditioning system because internal
electrical arcing in near vacuum conditions may result
in a damaged or failed compressor. Never run a scroll
compressor while the system is in a vacuum or com-
pressor failure will occur.
4.8 Final Leak Testing
After the unit has been properly evacuated and
service valves opened, a halogen leak detector should
be used to detect leaks in the system. All joints and
piping within the outdoor unit, evaporator, and inter-
connecting tubing should be checked for leaks. If a
leak is detected, the refrigerant should be recovered
before repairing the leak. The Clean Air Act prohibits
releasing refrigerant into the atmosphere.
4.9 Control Wiring
WARNING:
at the fuse box or service panel before making
any electrical connections. Also, the ground connection
must be completed before making line voltage
connections. Failure to do so can result in
electrical shock, severe personal injury, or death.
22
Compressors
Turn off electrical power
4.9.1EcoNet Communications
™
The EcoNet enabled (-)A17 Series condensing units
™
are specifically designed to be matched with and
EcoNet enabled air-handler or gas furnace and the
™
EcoNet Control Center. While they are also designed
™
to be controlled by a conventional 24VAC 2-stage ther-
mostat, many features and benefits are lost.
4.9.2 EcoNet
Control Center or
™
Thermostat Installation
The EcoNet
Control Center or thermostat should be
™
mounted 4 to 5 feet above the floor on an inside wall of
the living room or a hallway that has good air
circulation from the other rooms being controlled
by the Control Center or thermostat. It is essential that
there be free air circulation at the location of the
same average temperature as other rooms
being controlled. Movement of air should not be
obstructed by furniture, doors, draperies, etc. The
Control Center or thermostat should not be mounted
where it will be affected by drafts, hot or cold water
pipes or air ducts in walls, radiant heat from fireplace,
lamps, the sun, T.V. or an outside wall. See instruc-
tions packaged with Control Center or thermostat for
detailed mounting and installation instructions.
4.9.3 EcoNet
Communication
™
Wiring Connections
The four 18 AWG low-voltage control wires must
be installed from the EcoNet™ Control Center to the
indoor unit and from the indoor unit to the outdoor unit.
The wire length between the Control Center and indoor
unit should not be greater than 100 feet [30.5 m]. The
wire length between the indoor unit and outdoor unit
should not be greater than 125 feet [38.1 m].
Running low-voltage wires in conduit with line voltage
power wires is not recommended. Low-voltage wiring
must be connected to the low voltage pigtails below
the control box.
An EcoNet™ communicating system consists of these
matched components:
•
EcoNet™ communicating outdoor unit.
•
EcoNet™ communicating air handler or
EcoNet™ communicating furnace.
•
EcoNet™ Control Center.
Advertisement
Table of Contents
Troubleshooting
