Airflow Performance Data - Rheem RH1V2417STANJA Installation Instructions Manual

32
6.0 AIR HANDLER EQUIPPED WITH THE OMFORT
2
ONTROL SYSTEM™ INTERFACE BOARD (-)H2V
FIGURE 30
THE AIR HANDLER COMFORT CONTROL
The (-)H2V series of air handlers are designed to operate with conventional 24VAC con-
trols or with a serial communicating system.
2
For the Comfort Control System™, you must have:
• Air handler equipped with the Comfort Control
• Condensing unit or heat pump equipped with the Comfort Control
2
• A Comfort Control thermostat
If your equipment does not meet this criteria, you must wire it using conventional 24VAC
thermostat control wiring. Reference Section 4.8.
6.1 OMFORT ONTROL
2
Comfort Control System™ requires four (4) control wires for unit operation:
R – 24VAC
C – 24VAC common
1 – Data wire 1
2 – Data wire 2
Wiring sizing for Comfort Control
2
Note: The Comfort Control
IMPORTANT: When using the Comfort Control
24VAC thermostat wires. If any connections are made to the G, W1, W2, Y1, Y2, or
ODD wires, the serial communicating control will assume the control is being used with a
traditional thermostat and will IGNORE ANY COMMUNICATIONS USING DATA WIRE
1 AND DATA WIRE 2.
IMPORTANT: Class 2 low voltage control wire should not be run in conduit with power
wiring and must be separated from power wiring, unless Class 1 wire of proper voltage
rating is used.
• The four 18AWG low voltage control wires must be installed from the thermostat to the
indoor unit and from indoor unit to the outdoor unit. The wire length between the ther-
mostat and indoor unit should not be greater than 100 feet. The wire length between
the indoor unit and outdoor unit should not be greater than 125 feet.
• Low voltage control connections are made by extending wires from top of air handler
using wire nuts.
• See wiring diagrams attached to indoor and outdoor sections to be connected
• Do not leave excess field control wiring inside unit, pull excess control wire to outside
of unit and provide strain relief for field wiring on inside of cabinet at point wiring pene-
trates cabinet.
• Make sure, after installation, separation of control wiring and power wiring has been
maintained.
2
SYSTEM™ CONTROL BOARD
2
2
SYSTEM™ CONTROL WIRING
2
is identical to systems using low voltage 24V wires.
System™ requires a minimum 18 AWG.
2
, do not make any connections to the
2
System™.