R e s i d e n t i a l S p l i t
R e v. : 1 3 M a r c h , 2 0 1 5
36
ICC Controls
Flashing upper case “H” indicates a command for second
stage heating has been received.
The 5-minute time delay can be bypasses when a command
for compressor operation is present by pressing the TEST
button for 1 second and releasing. The compressor will
begin operation and the dual 7-segment will stop
fl
ashing.
30 Second Minimum Run Timer
The ICC has a built in 30 second minimum unit run time. If a
command for compressor operation is received by the ICC
and the command is removed, the compressor will continue
to operate for 30 seconds. The dual 7-segment LEDs will
fl
ash “c”, “C”, “h”, or “H” while the minimum run timer is
active.
1 Second Compressor/Pump Delay
The ICC starts/stops the pump output one (1) second after
the start/stop of the compressor upon a command for
compressor operation to minimize current inrush and/or
voltage drop.
Safety Feature Operation
Active Compressor Protection Modes
The ICC actively protects the system from harmful operation
during a fault condition
When the ICC detects a condition that could damage the
system, the ICC will enter active protection mode and
lockout compressor operation
The condition causing active protection must be resolved
before the ICC will restart the system
There are eight (8) active protection modes:
1) Low Pressure Control Lockout
The ICC will display a
fl
ashing “L” followed by a
fl
ashing “21”
when a low-pressure lockout occurs.
Active Protection – Code L21 – Open Low Pressure Control
If the LPC opens for thirty (30) continuous seconds, three (3)
times during the same command for compressor operation,
the ICC will lockout the compressor to keep it from
continuing to operate and
fl
ash a “L” on the dual 7-segment
LEDs followed by a “21”.
IMPORTANT: This mode of active protection must be
manually reset.
2) High Pressure Control Lockout
The ICC will display a
fl
ashing “L” followed by a
fl
ashing “29”
when a high-pressure lockout occurs.
Active Protection – Code L29 – Open High Pressure Control
If the HPC opens three (3) times during the same command
for compressor operation, the ICC will lockout the
compressor to keep it from continuing to operate and
fl
ash a
“L” on the dual 7-segment LEDs followed by a “29”.
IMPORTANT: This mode of active protection must be
manually reset.
3) Low Water Coil Temperature Lockout
The ICC will display a
fl
ashing “L” followed by a
fl
ashing “85”
when a low water coil temperature lockout occurs.
Active Protection – Code L85 – Low Water Coil Temperature
If the Water Coil Temperature sensor (FP1) measures a
temperature below the currently selected setpoint (JW1) for
thirty (30) continuous seconds during compressor operation,
the ICC will lockout the compressor to keep it from
continuing to operate and
fl
ash a “L” on the dual 7-segment
LEDs followed by a “85”.
IMPORTANT: This mode of active protection must be
manually reset.
4) Low Air Coil Temperature Lockout
The ICC will display a
fl
ashing “L” followed by a
fl
ashing “86”
when a low air coil temperature lockout occurs.
Active Protection – Code L86 – Low Air Coil Temperature
If the Air Coil Temperature sensor (FP2) measures a
temperature below 30ºF [-1ºC] for thirty (30) continuous
seconds during compressor operation, the ICC will lockout
the compressor to keep it from continuing to operate and
Summary of Contents for RPVE Series
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