Trane SmartCharge BAYCAKT002AA Assembly instructions

IMPORTANT — This tool was designed to assist in properly charging a Link™ equipped Air Conditioning or Heat
Pump system with refrigerant by interfacing with a microprocessor that calculates the system subcooling.
NOTE: The installer must apply 24vac to the Red wire in the Outdoor units low voltage harness.
Specifications: R-410 A
24 Volt AC
Installer’s Guide
CAUTION
!
DO NOT CONNECT BACKWARDS.
CAUTION
!
HOSES WILL CONTAIN REFRIGERANT THAT
WILL BE UNDER PRESSURE.
NOTE: Device is not intended to charge without at least 50 PSIG of refrigerant pressure or temperatures below
65°F. To be used in cooling mode only.
BAYCAKT002AA SmartCharge™Tool
18-HH37D1-1B-EN
Figure 1: SmartCharge™Tool
Installation Instructions:
Refer to Figure 2 for the installation of
SmartCharge™Tool.
1. Attach a refrigerant hose from a refrigerant
bottle to the inlet side of the SmartCharge™
tool.
2. Open refrigerant bottle to pressurize inlet hose.
Purge hose by loosening inlet hose slightly at
SmartCharge™inlet connection. Tighten when
purge is complete.
3. Attach a refrigerant hose from the
SmartCharge™tool outlet to the Vapor line
service port. Unscrew refrigerant hose slightly
at the SmartCharge™outlet connection to
purge outlet hose. Tighten when purge is
complete.
4. Connect the interface cable from the
SmartCharge™tool to the IVSC at terminals T1
& T2 “Charge Solenoid” location.
5. Open the Diagnostics Mobile app and connect
to the system. Choose “Test Modes”. Select
SmartCharge™from the top banner.
6. Diagnostics Mobile app will show a status.
7. When the SmartCharge™procedure is
completed, close off refrigerant cylinder and
carefully disconnect hoses.

Installer’s Guide
Figure 2: SmartCharge™Tool Installation
LIQUID
REFRIGERANT
SmartCharge™
LSOV
EEV
LOAD
MONITOR
TOOL
SHED
CDA
EXT.ODT
PERSONALITY MODULE STATUS
COMM
T4 T3
T1 T2
HPCO
DATA
CHARGE
SOLENOID
10
1
18
9J1
J6 J4
DRB
J8
J9
J3
J10
J2
J5
J20
PSC
(not used)
PWM
STATUS
COMM
About Trane and American Standard Heating and Air Conditioning
Trane and American Standard create comfortable, energy efficient indoor environments for residential applications.
For more information, please visit www.trane.com or www.americanstandardair.com
The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications
without notice. We are committed to using environmentally conscious print practices.
© 2022
18-HH37D1-1B-EN 24 Mar 2022
Supersedes 18-HH37D1-1A-EN (September 2021)