5
RECOVER Routine
If the
CA
control determines there is excessive refrigerant
in the system, the
REC
Red
LED
will be turned ON. The
CA
control will lock the system off for one hour and it will
then exit the
CA
cycle. The
REC
Red
LED
will stay ON for
1 hour. The
CA
control lock out period can be stopped by
pressing the MODE button for 2 seconds. Status LED will
be off during lockout.
NOTE:
Personality Module (PM)
contains model specific
information needed for system operation -
Do Not Re-
move.
NOTE: The word
‘
Wait
’
will be displayed on the Commu-
nicating Comfort Control when the system is in the
CA
mode. The Communicating Comfort Control does not
control the system operation when the system is running
in the
CA
Mode. Any changes in the Communicating
Comfort Control programming made during the
CA
mode
of operation will become effective after the
CA
mode ends.
NOTE: Charge Assist™ IS NOT allowed when a heat
pump is operating in the heating cycle. If the mode but-
ton is pressed during an active compressor heat call,
the CHARGING (STABILIZING) LED will flash 10 times
indicating that CA is not allowed. Once an active call for
compressor heat has ended, CA may be entered.
CAUTION: Minimum equipment off time is bypassed dur-
ing Charge Assist™. Avoid cycling compressor quickly.
Observe the recommended 5-minute minimum off time for
compressor protection.
CHARGING Routine
Charge Assist™
will follow one of the following routines.
STEP 4:
CHARGED Routine
IF the
CA
control determines the system is correctly
charged, the
CHARGING
(STABILIZING)
Amber LED
will
be turned
OFF
and the
CHARGED Green LED
will be
turned
ON
.
The
CA
control will then exit the charge assist cycle and
return the control of the system to the Communicating
Comfort Control. The
Status Green LED
will be slowly
flashing. The
CHARGED Green LED
will stay
ON
for 1
hour.
STEP 5:
ADD Routine
If the
CA
control determines refrigerant
is required, the
ADD Amber LED
will turn
ON
and the
Green
CHARGED LED
will begin
FLASHING
according
to the
CHARGED Green LED
flash Rate Schedule.
(See SUMMARY on page 7 for flash rate details.)
NOTE: For Automated charging, use BAYCAKT001AA.
When utilizing a Charging accessory Solenoid Kit (BAY-
CAKT001-shown in Figure 3) refer to the instructions
in the kit (18-HH15D1-*) for proper hook up. When the
Amber
ADD
LED is ON the
CA
control board provides a
24 VAC power for the accessory solenoid. The
CA
control
will turn off the 24 VAC power when the Amber
ADD
LED
goes off.
When refrigerant is being added, the
CA
control will
exit
the Charge Assist™ cycle if the liquid line pressure
does
not increase by 4 psi in 50 minutes or
if the liquid line
pressure
does not get within the 20 psi of the required
charged pressure within 1 hour.
Note: For Manual Charging
Once sufficient charge has been added, the Amber
ADD
LED
will turn
OFF
and the Green
CHARGED LED
will be
turned
ON.
When the Amber
ADD LED turns OFF; stop
adding refrigerant.
The Green
CHARGED
LED will stay
on for 5 minutes while the unit runs.
The
CA
control will
now exit the Charge Assist™ cycle and returns control to
the Communicating Comfort Control.
STEP 6:
3
Charge Assist™ Solenoid Kit
BAYCAKT001
Use for Auto Charging
(See Installer’s Guide 18-HH15D1-*)
STABILIZING
LED
CHARGED
LED
ADD
LED
REC
LED
CHARGED
Routine
(See Step 4)
OFF
ON
OFF
OFF
ADD
Routine
(See Step 5)
OFF
Flashing
ON
OFF
RECOVER
Routine
(See Step 6)
OFF
OFF
OFF
ON
