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CHARGING Routine
Charge Assist™ will follow one of the following routines.
STeP 4:
STABILIZING
LED
CHARGED
Routine
OFF
(See Step 4)
ADD
Routine
OFF
(See Step 5)
RECOVER
Routine
OFF
(See Step 6)
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:
CHARGED
ADD
REC
LED
LED
LED
ON
OFF
OFF
Flashing
ON
OFF
OFF
OFF
ON
Charge Assist™ Solenoid Kit
3
bAyCAKT001
use for Auto Charging
(See Installer's Guide 18-HH15d1-*)
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.
5
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