Table of Contents
RT-SVX45F-EN
5
Resetting Cooling and Ignition Lockouts 47
Zone Temperature Sensor (ZTS) Service Indi-
cator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Clogged Filter Switch . . . . . . . . . . . . . . . . 48
Fan Failure Switch . . . . . . . . . . . . . . . . . . 48
Condensate Overflow Switch . . . . . . . . . 48
Zone Temperature Sensor (ZTS) Test . . 48
Relative Humidity Sensor Test . . . . . . . . 48
Programmable & Digital Zone
fault Chart . . . . . . . . . . . . . . . . . . . . . . . . . 49
Unit Operation without a Zone Sensor . . 49
Unit Economizer Control (ECA) Trouble-
shooting . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Compressor Inverter Drive . . . . . . . . . . . 51
. . . . . . . . . . . . . . . . . . . . . . . 53
. . . . . . . . . . . . . . . . 53
TZC (Parts Only) . . . . . . . . . . . . . . . . . . . . 53
Models Less Than 20 Tons for Commercial
Use* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53