Ductless Multi-Split Heat Pump
Service Manual
Design may vary by model number.
• Please read this manual before using the heat pump.
• Keep this user manual for future reference.
Table of Contents
Introduction ........................................................................................................................ A-1
Outdoor Technical Overview .............................................................................................. B-1
Wall Mount Technical Overview ......................................................................................... C-1
Compact Cassette Technical Overview .............................................................................. D-1
Large Cassette Technical Overview ....................................................................................E-1
Slim Duct Technical Overview ............................................................................................. F-1
Mid-Static Ducted Technical Overview .............................................................................. G-1
Console Technical Overview .............................................................................................. H-1
Troubleshooting & Reference ..............................................................................................I-1
Outdoor
ASH220NCDWA
ASH324NCDWA
ASH436NCDWA
Indoor
Wall Mount - Highwall
ASYW07URDWA
ASYW09URDWA
ASYW12URDWA
ASYW18URDWA
2’x2’ Compact Cassette
AB09SC2VHA
AB12SC2VHA
AB18SC2VHA
3’x3’ Large Cassette
AL24LP2VHA
Slim Duct
AD07SL2VHB
AD09SL2VHB
AD12SL2VHB
AD18SL2VHB
Mid-Static Ducted
USYM09UCDSA
USYM12UCDSA
USYM18UCDSA
USYM24UCDSA
Console
USYF09UCDWA
USYF12UCDWA
USYF18UCDWA
• Before troubleshooting or servicing equipment, review equipment installation guides
and conrm ALL installation requirements & specications have been met. Including,
but not limited to: wiring, clearance, ducting (where applicable), power, and line set
requirements. Correct any installation issues before continuing.
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