Owner's Manual
Page 1
CT50A. CT51 A, CT52A-, CT53i Thermostats INSTALLATION INSTRUCTIONS CELIA is for most gas and oil heating systems. CT53A is for millivoltage Do-it-yourself heating systems. models PREPARATION
CT50A. CT51 A, CT52A-, CT53i Thermostats INSTALLATION INSTRUCTIONS CELIA is for most gas and oil heating systems. CT53A is for millivoltage Do-it-yourself heating systems. models PREPARATION
Owner's Manual
Page 2
CONTENTS PREPARATION THERMOSTAT FEATURES REMOVING OLD THERMOSTAT WIRE AND MOUNT NEW THERMOSTAT CHECK OUT THE THERMOSTAT THERMOSTAT SETTING TROUBLESHOOTING RECALIBRATE THERMOMETER STEP 1 2 3 4 5 6 7 8
CONTENTS PREPARATION THERMOSTAT FEATURES REMOVING OLD THERMOSTAT WIRE AND MOUNT NEW THERMOSTAT CHECK OUT THE THERMOSTAT THERMOSTAT SETTING TROUBLESHOOTING RECALIBRATE THERMOMETER STEP 1 2 3 4 5 6 7 8
Owner's Manual
Page 5
tems are disconnected. The fan switch COntrOiS a* fOllOWS: AUTO-fan operates when heating or coaling system operates. ON--fan operates continu- ous,y. THERMOSTAT SETTING q On CTS,A. ,,lace the system and fan switches at thqe desirotedenamseti,imng,ps oefsor dreompaeertatitoicnleiu.isnh'v"r.geer to the desired temperature com,ort level. CHECK OUT THE THERMOSTAT operates. COOL--cooling system only operates. OFF-heating and cooling sys-
tems are disconnected. The fan switch COntrOiS a* fOllOWS: AUTO-fan operates when heating or coaling system operates. ON--fan operates continu- ous,y. THERMOSTAT SETTING q On CTS,A. ,,lace the system and fan switches at thqe desirotedenamseti,imng,ps oefsor dreompaeertatitoicnleiu.isnh'v"r.geer to the desired temperature com,ort level. CHECK OUT THE THERMOSTAT operates. COOL--cooling system only operates. OFF-heating and cooling sys-
Owner's Manual
Page 6
FO,,OW the proceduy below. a hex head wrench in the ther- 0 q saecthctceutohraveoetrnaemtrabonlmeaaenrtemtqohmrete.er Rienipmlascohteaoftpohcovaezmenrdt3rahnteaudrs"nepettuatieitothmreulnen~tislysea.tetmheding. Major swings RECALIBRATE THERMOMETER if the thermostat set point and the Fo;;rftilneadings are the same. thermometer reading da not agree. the replace cover and put the system RemthoevremCoOs"tfaztl.q I,thr-ee' adairndegiffseinre*netr,t thermometer may need recalibration.
FO,,OW the proceduy below. a hex head wrench in the ther- 0 q saecthctceutohraveoetrnaemtrabonlmeaaenrtemtqohmrete.er Rienipmlascohteaoftpohcovaezmenrdt3rahnteaudrs"nepettuatieitothmreulnen~tislysea.tetmheding. Major swings RECALIBRATE THERMOMETER if the thermostat set point and the Fo;;rftilneadings are the same. thermometer reading da not agree. the replace cover and put the system RemthoevremCoOs"tfaztl.q I,thr-ee' adairndegiffseinre*netr,t thermometer may need recalibration.
