Coster XTA 624, Manual

Page 1: ...l based on temperature comparison or with minimum external air limit heat recuperator On Off control according to room external temperature comparison 2 pump control On Off outputs accoring to output load Manual seasonal switching from a display or an external switch Remote controlled temperature setting adjustment Alarms for short and open detector circuits and for system and equipment malfunctio...

Page 2: ...g in type ACB 400 C1 for C Bus communica tion Preheating temperature B4 0 10 40 C Temp proportional band base value Heating room B3 o B1 B3 1 2 40 C Heating flow B1 1 10 40 C Various temp proportional band multipliers Heating flow B1 B3 Bp amb x 0 5 10 20 Cooling temperatures Pb heat x 0 5 20 preheating B4 Pb heat disch x 0 5 1 20 Air dampers B2 B3 Pb room heat x 0 5 1 20 Valve stroke time modulat...

Page 3: ...rough manual or centralized season switch or through XTU 614 type controller c1 on off contact through timeswitch or through manual control or through fan relay Y MODULAT I NG Run T ime x x x s M2 3 5 7 1 3 Wire Modulating Valve Control 7 2 Electric Battery Control Y 2 STAGES M2 3 5 2 equal loads Y 3 STAGES M2 3 5 Y 2 STAGES M2 3 5 7 3 Direct Expansion Battery Control 2 unequal loads Y1 2 e Electr...

Page 4: ...ote Telemanagement by when enabled by C Bus Plug in type ACB 400 C1 local communication e g setting via PC when enabled with Test Plug in ACX 232 Telemanagement is bidirectional with one or more local PCs and or the remote central PC via PSTN Local communication is direct to a portable PC to be connected directly to the unit From PC or PCs it is possible to display and or change the data and value...

Page 5: ... point adjuster optional 11 2 Room temperature control with flow temperature limits 11 3 Flow temperature control De t e c t o r s La you t 2 3 5 M2 1 De t e c t o r s La you t 1 2 3 5 M2 1 De t e c t o r s La you t 1 2 5 M2 1 12 USE OF YS OUTPUT EXAMPLES 12 1 Temperature comparison air damper optimization 12 2 Heat recuperator On Off control B2 Outside temperature detector B3 Room or extract tempe...

Page 6: ...etector M1 Heating pump M2 Cooling pump Rt Temperature set point adjuster optional Y1 Heating modulating control Y2 Cooling modulating control 13 1 1 Preheating modulating battery 1 Post heating modulating battery 1 Humidifying On Off unit controlled from outside the controller 13 3 1 Winter pre heating summer cooling modulating battery 1 Winter post heating modulating battery 1 Humidifying On Off...

Page 7: ... Y1 MODULAT I NG Run t ime x x xs M2 3 Y1 Wi n HEAT I NG Y1 Sum OFF M2 4 Y2 2 STAGES M2 5 Y2 Wi n OFF Y2 Sum COOLI NG M2 6 Se a son sw i t ch i ng XXXXXXXXX M2 2 13 5 1 Winter heating electric On Off battery 1 Summer cooling direct expansion On Off battery 1 Humidifying On Off unit controlled from outside the controller B1 Flow temperature detector B2 Outside temperature detector for compensation ...

Page 8: ...ature control parameters Proportional Band and Integral Time refer to heating control Room if B3 only or B1 B3 are connected or Flow if B1 only is connected and can be changed through the ADJUSTMENT menu The Proportional Band parameter in C is used for other temperature settings through modifiable multipliers that adapt it to the different types of controls Cooling Preheating Air Damper Examples o...

Page 9: ...Hea and for Cooling T fCoo against the temperature measured by the discharge air detector B1and derives the load values for Heating Qhea and for Cooling Qcoo according to the deviations detected When the manipulation of air dampers M3 7 is foreseen the operation is optimised If under Ambient Authority M2 5 bis a value other than zero has been set the controller re calculates the desired minimum he...

Page 10: ...r Coo l i ng Comp NO Op t 3 5c Fpt 10 c M2 7 Coo l T F l ow De s i r 2 5 0 c 0 0 M0 5 Hea t i ng Comp NO Op t 1 0c Fp t 5 0 c M2 6 Sea son Sw i t ch i ng 1 2 M3 1 He a t T F l ow De s i r 2 0 0 c 0 0 M0 3 F l ow He a t T Compens a t 0 0 0 M0 4 F l ow Coo l T Compens a t 0 0 0 M0 6 Coo l T Room Compens a t 0 0 0 M0 6 15 5 Operating modes The controller can operate in the following modes ON Winter O...

Page 11: ...d in current season Y MODULAT I NG Run T ime 12 0 s M3 3 5 Y1 HEAT I NG M3 4 Y1 Wi n HEAT I NG Y1 Sum HEAT I NG Y2 COOLI NG M3 6 Y2 Wi n COOLI NG Y2 Sum COOLI NG 17 PREHEATING TEMPERATURE CONTROL The function is only enabled if detector B4 is connected It can be used for the following purpo ses The controller compares preheating temp T pre with the temp measured bydetectorB4 andcalculatestheloadva...

Page 12: ... air through the PI feature Whenever actual outside temperature t r exceeds the target T rCoo value and outside temperature t o exceeds actual room temperature t r the controller shuts outside air through the On Off control 19 2 Heat recuperator control The recuperator is off Ys signal 0 V when Theoutsidetemperaturevaluet oiscomprisedbetween T rhea and T rCoo The recuperator is on Ys signal 10 V w...

Page 13: ... 15 04 Y1 and Y2 control From 16 04 to 14 05 Y1 and Y2 control in OFF From 15 05 to 15 09 Y1 and Y2 control From 16 09 to 14 10 Y1 and Y2 control IN OFF Overlapping season periods Result overlapping periods according to outside temperature From 02 11 to 14 03 Y1 and Y2 control From 16 05 to 31 08 Y1 and Y2 control From 15 03 to 15 05 and from 01 09 to 01 11 When outside temperature remains below t...

Page 14: ...normal program Enter the number of annual periods to be used in order to eliminate unused display pages For each annual period select the program to be used 7 DAY 1 4 24 HOUR 1 25 ON OFF Enter the data for each individual period Per 01 selection of available periods Start NO annual period not used 00 annual period used start time midnight 12 annual period used start time 12 o clock noon from t o d...

Page 15: ...B4 is connected Actual outside temperature only if B2 is connected Output Y1 load value Preheat or Heat or Cool Output Y2 load value Preheat or Heat or Cool Output Ys load value DampTemp or Recuper 23 4 Data recording Every hour and with every mode change the controller stores a set of data indicating operating status Current date and time type of recording new hour or mode change Current mode On ...

Page 16: ...e is a continuing deviation between actual and desired measures These alarms do not affect the controller s proper operation By default all alarms are disabled except clock alarm 8 Use the and keys to enable desired alarms entering numbers in place of the dashes Number flashing the alarm is on IAlarm limit values and delays can only be changed via computer Types and reasons of alarms 1 flow temper...

Page 17: ... He a t F l ow x 1 0 Pb F l ow Pb Room x 5 0 TECH I N I CAL PAGES PRESS KEY S i t e name Pa s swo r d cho i c e A l a rms De t e c t o r A l a rm Func t i ons 8 Add r e s s Gr oup Send A l a rms NO Pa s sWTe l eman NO Y2 Wi n COOLI NG Y2 Sum COOLI NG Y2 MODULAT I NG Run T ime 1 2 0s Y1 Wi n HEAT I NG Y1 Sum HEAT I NG Y1 MODULAT I NG Run T ime 1 2 0s De t e c t o r s La you t Se a son Sw i t ch i n...

Page 18: ...d by the controller 16 Displayed if B2 and B3 or B1 B2 and B3 are con nected and if M2 4 or M2 6 setting is COOLING Displayed if B2 with B1 only is connected and if M2 4 or M2 6 setting is COOLING Coo l T F l ow Compensa t 00 0 P r ehea t i ng T Des i r 18 0 c M0 7 Desired Preheating temperature 17 Displayed if B4 is connected and if M2 4 or M2 6 setting is PREHEATING Ca l cu l a r ed F l ow Hea t...

Page 19: ... i n imum 0 M2 9 Displayed only if M2 12 setting is DAMP TEMPE RATURE 19 4 M2 ADJUSTMENT Ref Display Description Notes Sect M1 TIME SETTINGS AND PERIODS Ref Display Description Notes Sect Da i l y 1h r 1 6 0 0 ON Da i l y 1h r 6 22 0 0 OFF M1 2 M1 7 Programnumber timesettingnumber andprogram med period starting time Selection of type of mode to be assigned to the period ON OFF Other 6 page groups ...

Page 20: ...ed through C Bus M3 10 23 1 Functional alarms enabled Default config Only alarm 8 enabled cannot be disabled 1 flow temperature difference B1 3 room temperature differenceB3 4 preheating temperature differenceB4 8 internal clock alarm A l a rm Func t i ons 8 M3 11 A l a rms De t e c t o r 23 2 Detector alarms enabled Default config all disabled 1 flow temp detector B1 malfunction 2 outside temp de...

Page 21: ...sted Select output status 24 Output selection Y1 MODUL or Y1 2 STAGES or Y1 3 STAGES Y2 MODUL or Y2 2 STAGES or Y2 3 STAGES PUMP M1 PUMP M2 Ys Status selection with Y MODUL STOPS OPENS CLOSES with Y 2 STAGES ON 1 ON 1 2 OFF with Y 3 STAGE ON 1 ON 2 ON 1 2 OFF with M1 PUMP AND M2 PUMP ON OFF with Ys 0 VOLT 5 VOLT 10 VOLT M4 TESTING Ref Display Description Notes Sect ...

Page 22: ...22 E 136 XTA 624 C1 Eng 22 11 10 AM REV 02 We reserve the right to make changes without notice COSTER ...

Page 23: ...23 E 136 XTA 624 C1 Eng 22 11 10 AM REV 02 We reserve the right to make changes without notice COSTER ...

Page 24: ...us speed display Added menu 01 0 99 2650 22 11 10 VM 02 3 8 Wiring Wiring procedure modified 01 0 99 2650 COSTER TECNOLOGIE ELETTRONICHE S p A Sede Legale 20132 Milano Via San G B De La Salle 4 a E mail info coster info Web www coster eu COSTER CONTROLLI TEMPERATURA ENERGIA Head Office Sales Via San G B De La Salle 4 a Tel 39 022722121 20132 Milano Fax 39 022593645 Orders Fax 39 0227221239 Reg Off ...