TCS Basys Controls SZ1041A Product Manual

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TCS Basys Controls SZ1041A Product Manual Manual pdf 14 page image

R2800 LAURA LANE • MIDDLETON, WI 53562 • (800) 288-9383 • FAX (608) 836-9044 • www.tcsbasys.com14Analog output not Working ProperlyCheck wiring. A separate transformer should be usedfor the SZ1041A and a separate transformer should beused for the motor(s). Check to make sure that the ana-log output is programmed correctly.Check the Service Menu. The Mod Out Screen will tellyou what the SZ1041A is trying to put out. Compare thiswith the actual position on the heating or cooling device.There are two conditions that must be met before theeconomizer analog output will modulate. First, theremust be a call for cooling. Second, the outdoor air tem-perature must be less than the setting set in program-ming step #38.Put the SZ1041A into occupied mode. You should beable to adjust the output by going to programming step#46 or 55 (depending on AO1 mode in step 41) andvarying the minimum position setting. You need to exitprogramming before the change will take effect.SeRviCe SCReenSContinually pressing the service status button allowsmore extensive monitoring. The screens are shown onthe following page.LED DescriptionSix LEDs on the face allow the occupant to view the cur-rent operating status of the thermostat.oCCUPiedThis LED will be lit whenever the unit isoperating in the occupied mode.heAtingThis LED will be lit when any heat output isoperating.CoolingThis LED will be lit when any cooling output is operating.FAnThis LED will be lit when the fan output is closed.SeRviCeThis LED will be lit when the high or low discharge airlimit has been reached, when the fan interlock has indi-cated failure, or when the filter service or service inputare closed.PRogRAm/dAtAThis LED will be lit when the thermostat is within theprogramming or clock setup menus. It will blink when theunit is being accessed by a PC.Additional monitoring is available by continually pressingthe service key.main monitoring Screen. Press theservice button to access the followingscreens.Service Screen. This message maybe followed by any or all of the follow-ing: CHECK FILTER, CHECK FAN,DISCHARGE HIGH, DISCHARGE LOW,or CHECK DI2.discharge Air temperature Screen.Shows discharge air temperature if sen-sor is used.outdoor Air temperature Screen.Shows outdoor air temperature if sensoris used.override Status Screen. Shows wheth-er the override is active and if so, howmany minutes remaining.heat or Cool Stages Status Screen.Shows the status of the first and secondstages of heating or cooling.heat or Cool Stages Status Screen.Shows the status of the first and secondstages of heating or cooling.servicestatusMOD OUT 25%DI1 OPEN7.servicestatusHEAT STAGE 1 OFFHEAT STAGE 2 ON5.servicestatusOVERRIDE ON178 MINUTES4.servicestatusOUTDOOR AIRTEMP 75F3.servicestatusDISCHARGE AIRTEMP 55F2.servicestatusSERVICE STATUSOK1.servicestatusMON 11-19-0112:00 AM 72Fmodulating output 1 and di1Status Screen. Shows the percent-age of modulating output 1 and sta-tus for DI1.di2 and di3 Status Screen.Shows DI2 status and filter status orDI3 status.main monitoring Screen. (Date notshown on SZ1017a & SZ1017aW.)servicestatusDI2 SERVICE OFFFILTER OK8.servicestatusCOOL STAGE 1 ONCOOL STAGE 2 OFF6.MON 08-08-0812:00AM 72FOccupiedHeatingC oolingF anS erviceP rogram/Data

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