Icc Controls - Rheem RPVS Series Installation, Operation & Maintenance Instructions Manual

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

ICC Controls

ICC Control Description
Dual 7-Segment LED
Displays status and diagnostic codes, for normal operation
and fault recall.
Red LED (Y1)
Displays the status of the Y1 thermostat input.
Caution: UNIT MAY START SUDDENLY AND WITHOUT
WARNING. Solid red light indicates a thermostat call for
operation is present at the ICC control. The ICC control will
attempt to start the unit after the short cycle timer expires if
the control is not locked out.
Green LED (COMM STATUS)
The COMM STATUS LED will fl ash green in normal
operation. A fl ashing green light indicates 24VAC is present
and the data wires 1 and 2 are wired properly.
Important: If the COMM STATUS LED is solid green, data
wire 1 and data wire 2 are not properly connected. Typically
the connections are switched. Verify wiring and correct the
polarity at the two wires.
Compressor Control (K2)
Sealed single pole compressor relay switch with optical
feedback feature (arc detection).
Low Voltage Fuse
If necessary replace with 3 A automotive ATC style blade
fuse.
Low Pressure Control (LPC Input)
Low pressure control is automatically resetting factory
installed device.
High Pressure Control (HPC Input)
High pressure control is automatically resetting factory
installed device.
Water Coil Low Temperature (FP1)
Low water coil temperature protection control is a factory
installed temperature sensor.
Air Coil Low Temperature (FP2)
Low air coil temperature protection control is a fi eld installed
temperature sensor.
TEST and SW2 Buttons
The TEST and SW2 buttons are used to enter the Test and
Fault Recall modes.
Test Mode: Test mode allows the service technician to check
the operation of the control system in a timely manner. The
Test mode is activated by pressing the TEST button for 1
second, and will reset any active ICC lockout, reset the
anti-short cycle timer, and activate the compressor output
without a command for unit operation.
If the Test mode is initiated with no command for operation
34
present, and the ICC control will do the following:
1) A steady "t" appears on the ICC diagnostic display.
2) The compressor and low speed pump outputs will be
activated.
3) The compressor and pump outputs will turn off after 5
seconds.
Note: If a command for unit operation is present at the end
of the Test mode, the unit will continue to operate.
If the Test mode is initiated with a command for operation
present, and the ICC control will do the following:
1) A "t" is displayed momentarily on the ICC diagnostic
display.
2) The compressor and low speed pump outputs will be
activated.
3) The ICC diagnostic display will change to "c", "C", "h", or
"H" to show the current command for unit operation.
Fault Recall Mode: The Fault Recall mode is activated by
pressing both the TEST and SW2 buttons for 1 second
If the Fault Recall mode is initiated, the ICC control will do
the following:
1) When entering and exiting the Fault Recall mode, the top
and bottom right hand segments of the dual 7-segment
LEDs will illuminate.
2) When entering the Fault Recall mode, the ICC will
automatically scroll through the stored faults on the dual
7-segment LEDs.
3) Each stored fault is displayed on time with the top right
hand segment of the dual 7-segment display activated
between fault codes.
4) Each fault is displayed with the most recent fault
displayed fi rst.
5) A maximum of six individual faults can be stored.
6) A maximum of three consecutive identical faults may be
stored.
7) A "0" will be displayed when no faults are stored in
memory.
8) The ICC will automatically exit the Fault Recall mode
after displaying stored faults.
Clear Fault History: The stored fault history may be cleared
by pressing both the TEST and SW2 buttons for 5 seconds.
The top and bottom right hand segments of the dual
7-segment LEDs will fl ash to indicate the fault history has
been cleared.
ICC Control DIP Switches
Note: In the following fi eld confi guration options, DIP
switches should only be changed when power is removed
from the ICC control.
DIP switch SW1–1: Factory Setting – Normal position is
"On". Do not change this selection unless instructed to do
so by the factory.
DIP switch SW1–2: Slow Opening Water Valve – Provides the
selection of the pump (water valve) operation.
On = Normal operation. Off = Slow opening water valve.