Final Leak Testing; Control Wiring; Econet Communications; Econet™ Control Center Installation - Rheem ECONET RP2024BJVCA Installation Instructions Manual

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 compressor 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 heat pump, evaporator,
and interconnecting 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 electric power
4.9.1 EcoNet Communications
™
The EcoNet enabled (-)P20 Series heat pumps
TM
are specifically designed to be matched with
and EcoNet enabled air-handler or gas furnace
TM
and the EcoNet Control Center. While they are
TM
also designed to be controlled by a conventional
24VAC 2-stage thermostat, many features and
benefits are lost. Therefore, a conventional
24VAC 2-stage thermostat should only be
used in temporary emergency situations until
communication issues with the EcoNet
system are resolved.
4.9.2 EcoNet Control Center
™
Installation
The EcoNet Control Center should be mounted
TM
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. 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 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 instructions
packaged with Control Center 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 terminal block on the Variable Speed
Outdoor Control. The terminal block can be
unplugged from the control board to facilitate
wiring.
An EcoNet™ communicating heat pump system
consists of these matched components:
• EcoNet™ communicating heat pump outdoor
unit.
• EcoNet™ communicating air handler or
EcoNet™ communicating furnace.
• EcoNet™ Control Center.
control
TM