Pub. No. 11-AC14D1-6
PAGE 5
INSTALLER'S GUIDE
DIRECTION FOR CHARGE ASSIST™
NOTE:
Outdoor Temperature (ODT) must be between 65°F
and 100°F.
Be sure to set Dip Switches for Line Length and Lift before
entering Charge Assist™ Mode. (See Subcool Charging Table
Corrections for Line Length and Rise in the Service Facts for the
outdoor unit.)
To enter Charge Assist™ Mode, press the MODE button for at
least one (1) second. The on-board LEDs will indicate if the system
is capable of continuing. For a detailed description of on-board
LEDs and their function, see the Charge Assist™ Procedure
(18-AC72D1-*) contained in the Outdoor Unit (the position of the
* denotes the latest revision number).
The system will take approximately 12-20 minutes to stabilize
before the charge can be checked by Charge Assist™. Once the
system is stabilized, watch to see which LED turns on next. If the
system charge is correct, the “CHARGED” LED will turn on and
remain on for one (1) hour. Once charged, the system will exit
Charge Assist™ and control will return to the Comfort Control.
If the system charge is low, the “ADD” LED will turn on and stay
on up to one (1) hour or until enough refrigerant is added to reach the
required system charge level and turn on the “CHARGED” LED.
When the “ADD” LED is on, the charging solenoid output will be
active. This feature works to automatically control refrigerant
flow with BAYCAKT001.
If the system charge is high, the “REC” LED will turn on and the
unit will exit Charge Assist™. You must recover refrigerant from
the system before re-entering Charge Assist™.
For instructions on the Charge Assist™ tool BAYCAKT001, see
the Installer's Guide 18-HH15D1-* (the position of the * denotes
the latest revision number).
CHARGE ASSIST™
CHARGE ASSIST™ PORT
7
8
For additional information on manual charging, please see the Service Facts shipped with the outdoor unit.
NOTE:
Charge Assist™ port is
designed for liquid refrigerant charging.
