Icc Control Operation - Rheem ASL-JEC 18 Seer Installation Instructions Manual

Air-cooled condencing units

Hide thumbs

Table Of Contents

Table of Contents

Lower case "c" indicates first stage cooling operation

2) Second Stage Cooling Operation – When the ICC receives a command for second stage

cooling operation, an upper case "C" is displayed on the 7-segment LEDs.

Lower case "c" indicates first stage cooling operation

2) Second Stage Cooling Operation – When the ICC receives a command for second stage

cooling operation, an upper case "C" is displayed on the 7-segment LEDs.

Upper case "C" indicates second stage cooling operation

3) First Stage Heating Operation - When the ICC receives a command for first stage

heating operation, "h1" is displayed on the 7-segment LEDs.

Upper case "C" indicates second stage cooling operation

3) First Stage Heating Operation - When the ICC receives a command for first stage

heating operation, "h1" is displayed on the 7-segment LEDs.

"h1" indicates first stage heating operation

13.X Serial Communication ICC Control Operation

12.4 Comfort Control

I I n n s s t t a a l l l l a a t t i i o o n n V V e e r r i i f f i i c c a a t t i i o o n n

Installation Verification

• 24V AC power on R&C must be present at the ICC for it to operate

24V AC power on R&C must be present at the ICC for it to operate

•

• Line voltage must be present at the ICC for the compressor and the outdoor fan

Line voltage must be present at the ICC for the compressor and the outdoor fan to operate

•

to operate

The ICC displays a "0" for standby mode. Standby mode indicates line voltage and 24VA

• The ICC displays a "0" for standby mode. Standby mode indicates line voltage

•

and 24VAC are present at the ICC and there is not a command for unit operation

are present at the ICC and there is not a command for unit operation from the serial

from the serial communicating thermostat.

communicating thermostat.

C C o o m m m m a a n n d d f f o o r r C C o o m m p p r r e e s s s s o o r r O O p p e e r r a a t t i i o o n n ( ( Y Y 1 1 L L E E D D ) )

• If a command for compressor operation is received by the ICC (first stage/second

Command for Compressor Operation (Y1 LED)

stage cooling or first stage/second stage heating), the red Y1 LED will illuminate.

If a command for compressor operation is received by the ICC (first stage/second stage

•

• The ICC has an on/off fan delay of one (1) second for each stage of heating or

The ICC has a built in 3-minute time delay between compressor operations to protect the

cooling or first stage/second stage heating), the red Y1 LED will illuminate.

cooling.

•

The ICC has a built in 3-minute time delay between compressor operations to protect the

•

compressor against short cycling. The 7-segment LEDs will flash "c", "C", "h1", or "h2

The ICC has an on/off fan delay of one (1) second for each stage of heating or cooling.

• The ICC ignores the low pressure control for the first 90 seconds of compressor

•

compressor against short cycling. The 7-segment LEDs will flash "c", "C", "h1", or "h2

operation.

while the short cycle timer is active and a command for unit operation is received.

The ICC ignores the lower pressure control for the first 90 seconds of compressor operatio

•

while the short cycle timer is active and a command for unit operation is received.

• The dual 7-segment LED displays five (5) operational status codes.

On heat pumps, the ICC ignores the LPC during the defrost cycle.

•

1 1 ) ) F F i i r r s s t t S S t t a a g g e e C C o o o o l l i i n n g g O O p p e e r r a a t t i i o o n n – When the ICC receives a command for first

The 7-segment LED can display five (5) codes during a command for unit operation:

•

stage cooling operation, a lower case "c" is displayed on the dual 7-segment LEDs.

1) First Stage Cooling Operation – When the ICC receives a command for first stage

cooling operation, a lower case "c" is displayed on the 7-segment LEDs.

2 2 ) ) S S e e c c o o n n d d S S t t a a g g e e C C o o o o l l i i n n g g O O p p e e r r a a t t i i o o n n – When the ICC receives a command for

second stage cooling operation, an upper case "C" is displayed on the dual 7-

segment LEDs.

3 3 - - m m i i n n u u t t e e A A n n t t i i - - s s h h o o r r t t C C y y c c l l e e T T i i m m e e r r

• The ICC has a built in 3-minute time delay between compressor operations to

protect the compressor against short cycling. The dual 7-segment LEDs will flash

"c" or "C" while the short cycle timer is active and a command for unit operation is

received.

• The 3-minute time delay can be bypassed 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 flashing.

The 3-minute time delay can be bypassed when a command for compressor operation is

•

The 3-minute time delay can be bypassed when a command for compressor operation is

•

present by pressing the TEST button for 1 second and releasing. The compressor will begi

operation and the 7-segment will stop flashing.

30 Second Minimum Run Timer

The ICC has a built in 30 second minimum unit run time. If a command for compressor

•

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 continu

to operate for 30 seconds. The 7-segment LEDs will flash "c", "C", "h1", or "h2 while the

minimum run timer is active.