Condensing Unit & Heat Pump R410A Service Manual

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ACCESSORIES
ASZ/DSZ18
Model Description
A/DSZ18
036*
A/DSZ18
048*
A/DSZ18
060*
AFE18-60A All-Fuel Kit X X X
CSR-U-1 Hard-start Kit X
CSR-U-2 Hard-start Kit X
CSR-U-3 Hard-start Kit X X
FSK01A
1
Freeze Protection Kit X X X
LSK02* Liquid Line Solenoid Kit X X X
OT/EHR18-60 Emergency Heat Relay Kit X X X
OT18-60A² Outdoor Thermostat w/ Lockout Stat X X X
TX2N4 A³ TXV Ki t
TX3N4³ TXV Ki t X
TX5N4³ TXV Ki t X X
1
Installed on indoor coil
2
Require 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.