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18
DSZ/SSZ16
ASZ16
Model Description
D/SSZ16
024
D/SSZ16
030
D/SSZ16
036
D/SSZ16
042
D/SSZ16
048
D/SSZ16
060
AFE18-60A All-Fuel Kit X X X X X X
ASC01 Anti-Short Cycle Kit X X X X X X
CSR-U-1 Hard-start Kit X X X
CSR-U-2 Hard-start Kit X X X X
CSR-U-3 Hard-start Kit XX
FSK01A
1
Freeze Protection Kit X X X X X X
OT/EHR18-60 Emergency Heat Relay Kit X X X X X X
OY/EH R18-60 Emergency Heat Relay Kit X X X X X X
OT18-60A² Outdoor Thermostat w/ Lockout Stat X X X X X X
TX2N4³ TXV Kit X
TX3N4³ TXV Kit X X
TX5N4³ TXV Kit XXX
1
Installed on indoor coil
2
Required for heat pump applications where ambient temperatures fall below 0°F with 50% or higher relative humidy.
3
Field-installed, non-bleed, expansion valve kit — Condensing units and heat pumps with reciprocating compressors require the use of start-assist
components when used in conjunction with an indoor coil using a non-bleed thermal expansion valve refrigerant metering device.
Model Description
ASZ16
024
ASZ16
030
ASZ16
036
ASZ16
042
ASZ16
048
ASZ16
060
AFE18-60A All-Fuel Kit XXXXXX
ASC01 Anti-Short Cycle Kit XXXXXX
CSR-U-1 Hard-start Kit X X X
CSR-U-2 Hard-start Kit XXXX
CSR-U-3 Hard-start Kit XX
FSK 01A
1
Freeze Protection Kit XXXXXX
OT/EHR18-60Emergency Heat Relay Kit XXXXXX
OY/EH R18-60 Emergency Heat Relay Kit X X X X X X
OT18-60A² Outdoor Thermostat w/ Lockout Stat X X X X X X
TX2N4³ TXV Kit X
TX3N4³ TXV Kit X X
TX5N4³ TXV Kit XXX
1
Installed on indoor coil
2
Required for heat pump applications where ambient temperatures fall below 0°F with 50% or higher relative humidy.
3
Field-installed, non-bleed, expansion valve kit — Condensing units and heat pumps with reciprocating compressors require the use of start-assist
components when used in conjunction with an indoor coil using a non-bleed thermal expansion valve refrigerant metering device.