12.0 CONDENSING UNITS EQUIPPED WITH THE
12.0 COMFORT CONTROL
2
SYSTEM™
The Comfort Control
2
is the next generation of the Integrated Compressor Control
(ICC) and is an integral part of the Comfort Control
2
System™ with the following
features:
12.1 Control Description (see Figure 4)
Dual 7-Segment LED
• Displays status and diagnostic codes (See Status and Diagnostic Description)
• Displays diagnostic/fault recall (See Test Mode/Fault Recall)
Red LED (Y1)
• Y1 red LED (solid on) indicates Y1 call from thermostat is present
Line Voltage Connector
• Line voltage is connected to control board at lug terminals L1 & L2
• Maximum wire size accepted is 6 AWG copper wire
• # 4 – 6 AWG 45 in/lbs
# 8 AWG 40 in/lbs
# 10 – 14 AWG 35 in/lbs
(Check wire terminations annually)
Compressor Control (K2)
• Sealed single pole compressor relay switch with optical feedback feature (arc
detection)
FIGURE 4
ICC BOARD
COMPRESSOR
WIRING
CONNECTOR
O.D. FAN (OFM) RELAY
COMPRESSOR
CONTROL (K2)
ICC (INTEGRATED
COMPRESSOR CONTROL)
TEST BUTTON
7-SEGMENT LED
AMBIENT DEFROST
CONTROL
DEFROST SENSOR
SW2 BUTTON
RED LED (Y1)
LOW VOLT FUSE
THERMOSTAT
CONNECTION (E2)
LOW PRESSURE CONTROL INPUT
HIGH PRESSURE CONTROL INPUT
{
MEMORY CARD
!
CAUTION
UNIT MAY START SUDDENLY AND WITHOUT WARNING
Solid red light indicates a thermostat call for unit operation is present at
the ICC control. ICC control will attempt to start unit after short cycle timer
expires or when in Active Protection mode will attempt to restart unit prior
to Lockout mode.
LINE VOLTAGE
CONNECTION
COMFORT CONTROL
2
SYSTEM™ CONTROL WIRING
17
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