TAC Xenta 102 Handbook Download

Page: 1 / 76

Zone controller
TAC Xenta 102

Handbook

0-004-7516-1 (GB), 1999-08-18

TAC improves indoor climate

and reduces operating costs.

Heating

Air flow

Cooling

Cooling
demand

Changeover via

network variable

Summary of Contents for Xenta 102

Page 1: ...Zone controller TAC Xenta 102 Handbook 0 004 7516 1 GB 1999 08 18 TAC improves indoor climate and reduces operating costs Heating Air flow Cooling Cooling demand Changeover via network variable...

Page 2: ......

Page 3: ...and there are now appendices in the end of the handbook one containing setpoint calculating examples and one containing a commissioning protocol which can be used together with chapter 3 when commissi...

Page 4: ...ACandisthereforeonlyavailableforthoseusingandmaintainingTAC sequipment Disclosure reproduction or use of either the document or the information within for any other purpose are strictly prohibited TAC...

Page 5: ...5 2 3 5 Air flow control with one stage electric reheat TAC Xenta 102 EF 2 6 2 3 6 Air flow control with one stage electric reheat and fan TAC Xenta 102 EF 2 6 2 3 7 Air flow control with thermo actua...

Page 6: ...14 5 3 7 Alarm 5 15 5 3 8 Master slave operation 5 16 6 Trouble shooting 6 1 6 1 General 6 1 6 2 Inputsandoutputs nvi nvo s 6 2 6 3 Problems and solutions 6 3 7 Technical data 7 1 7 1 Technicaldata 7...

Page 7: ...iguration parameters describes the setting of the zone controller s configuration parameters Chapter 5 Functional description gives detailed information about the zone controller s basic functions ope...

Page 8: ...nts Data sheet for TAC Xenta 102 B part number 0 003 1611 Data sheet for TAC Xenta 102 EF part number 0 003 1617 Data sheet for TAC Xenta 102 VF part number 0 003 1623 Data sheet for ZS 101 ZS 105 par...

Page 9: ...work SNVT Standard Network Variable Type nvixxx variable which gets its value from another unit on the network nvoxxx variable which value is sent out to another unit on the network ncixxx configurati...

Page 10: ...1 4 4 0 004 7516 1 GB TAC AB 1999 08 18 TAC Xenta 102 Handbook About this handbook This page is intentionally left blank...

Page 11: ...here are four operating modes to choose from comfort economy bypass and off and five modes to force the controller only heating allowed only cooling allowed night cooling auto and off Measuring the zo...

Page 12: ...2 3 Slave TAC Vista 1st floor Room 1 1 Slave Room 1 2 Slave Room 1 4 Slave Room 1 3 Slave Room 1 5 Master Office 1 1 Office 1 2 Office 1 3 Office 1 4 4th floor Ground floor Communication possibilities...

Page 13: ...ther things a setpoint knob and a bypass key with setting possibilities The setpoint knob is used to adjust the zone temperature setpoint with a maximum of 5 C The bypass key is used to change the ope...

Page 14: ...e concentration in the zone However the function needs a car bon dioxide sensor to be connected to the controller electroni cally or via the network a window contact to stop the heating and cooling fu...

Page 15: ...an TAC Xenta 102 VF The controller controls the zone temperature by sequence control ling the air flow controller VAV Compact and the heating coil The airflow is minimum and maximum limited The heatin...

Page 16: ...ontrol with one stage electric reheat and fan TAC Xenta 102 EF The controller controls the zone temperature by sequence controlling the air flow controller VAV Compact and the electric heating coil Th...

Page 17: ...air flow controller VAV Compact and the themo actuators for radiators The air flow is minimum and maximum limited Figure 2 7 Control application forTAC Xenta 102 EF Window contact Carbon dioxide senso...

Page 18: ...2 8 8 0 004 7516 1 GB TAC AB 1999 08 18 TAC Xenta 102 Handbook The zone controller TAC Xenta 102 This page is intentionally left blank...

Page 19: ...ich covers the relay terminals should be fitted figure 3 3 A semi protection is delivered together with these controllers To fasten the controller onto a DIN rail 1 Place the controller on the top of...

Page 20: ...provided for fastening the controller the maximum screw size is M4 or ST 3 5 The head of the screw should not exceed 7 5 mm in diameter Figure 3 2 TAC Xenta 102 fastened on a level surface To fit the...

Page 21: ...it should be connected to the terminal OP on the controller At the transformer G0 should be connected to protective earth This is to get an grounding point for interference diversion 6 Connect the two...

Page 22: ...10 M Measurement neutral 11 X1 Bypass key on wall module Digital input 12 R1 Setpoint adjustment on wall 10 k linear module potentiometer 13 M Measurement neutral 14 B1 Room temperature sensor Thermi...

Page 23: ...1 GX1 10 9 LONTALK TP FT 10 Z2 G0 24 V AC G 24 V AC G0 2 1 3 5 Belimo VAV Compact ZS 104 C2 C1 G G0 6 2 1 7 5 3 3 2 2 Wiring of TAC Xenta 102 B Note Read section 3 2 1 General before you connect the c...

Page 24: ...T 10 Z2 G0 K1 KC1 2 1 3 5 Belimo VAV Compact 230 V AC L 230 V AC N CAT III IEC 664 Class II EN 61010 1 27 28 24 V AC 3 2 3 Wiring of TAC Xenta 102 EF Note Read section 3 2 1 General before you connect...

Page 25: ...0 10 9 LONTALK TP FT 10 Z2 G0 G G0 X1 X2 M EM52L 2 1 3 5 Belimo VAV Compact ZS 104 C2 C1 G G0 6 2 1 7 5 3 3 2 4 Wiring of TAC Xenta 102 VF Note Read section 3 2 1 General before you connect the cables...

Page 26: ...mmissioning When TAC Xenta 100 should be used stand alone this is how 1 Set node status to Configured with TAC Xenta OP 2 Set the basic parameters with TAC Xenta OP 3 Set the other parameters and vari...

Page 27: ...tting diode is off If the controller is reset it will go into configured online Configured hard online To get the controller into this state you need a network management tool The controller has a pro...

Page 28: ...se labels when you go around and make the basic configuration and stick them to a form drawing or similar In the manual TAC Xenta Guidelines for zone applications there is a form for this purpose 2 Us...

Page 29: ...the controller during operation and nvo s are output variables which the controller sends out on the network nci s are normally set during commissioning and are not altered during normal operation the...

Page 30: ...02 B 1 Cooling sequence only enabled only valid for TAC Xenta 102 B Bit 3 0 Fan disabled 1 Fan enabled not valid for TAC Xenta 102 B Bit 4 0 Thermo actuators normally closed NC only valid for TAC Xent...

Page 31: ...nHeat The parameters give the cooling and heating sequence gain De fault value 25 Table 4 2 Configuration parameters Index Name Description 0 nciLocation Location label 25 nciSetpoints Occupancy tempe...

Page 32: ...ction 5 3 8 Default value 0 l s nciCO2PerVolt The parameter is used for setting a conversion factor for the signal from the carbon dioxide sensor to a concentration in ppm Default value 200 ppm V nciS...

Page 33: ...erature and uses different methods to calculate setpoints The air flow is controlled by an external air flow controller Apart from the basic functions in chapter 5 2 the controller has a number of oth...

Page 34: ...ed are found in nciSetpoints can be modified The alarms for the zone temperature deviation high carbon dioxide levels and flow deviation can cut out but the alarms for window contact and low zone temp...

Page 35: ...f mode When someone presses the bypass key on the wall module the bypass timer is started and the controller turns to bypass mode The bypass timer runs for two hours and after those two hours the cont...

Page 36: ...trolling with heating and cooling setpoints HVAC_HEAT Heating only The controller can only heat The cooling setpoint is neglected HVAC_COOL Cooling only The controller can only cool The heating setpoi...

Page 37: ...e adjusted by nciSpaceTempOfst having received a value this is added to the thermistor value The value the controller uses is also put out on nvoSpaceTemp If neither value is valid nvoSpaceTemp gets t...

Page 38: ...on the current op eration nvoUnitStatus the desired operation mode nviApplic Mode and nviSetpoint nviSetpntOffset nciAppOptions nciSet points and a possible local setpoint adjustment via the wall modu...

Page 39: ...6 The relation between variables for the setpoint calculation 1 2 2 nviSetpntOffset Wall module setpoint knob nviSetpoint nciAppOptions bit 9 Calculation according to method A or B if nviSetpoint has...

Page 40: ...a heating water coil for TAC Xenta 102 VF sequence controls the temperature When the cooling sequence should be run the controller calculates an air flow setpoint to VAV Compact Then the air flow cont...

Page 41: ...emand min max Fan enabled Fan disabled Air flow Cooling Cooling demand min max min heat TAC Xenta 102 EF TAC Xenta 102 VF Air flow Cooling Cooling demand min max Fan enabled Fan disabled Heating Air f...

Page 42: ...lues from the air flow controller by means of input Z1 0 10 V or nviBoxFlow The controller uses the air flow measurement to monitor devia tions Current air flow can be read by means of the network var...

Page 43: ...t 6 nvoFlowControlPt Effective flow control output 7 nvoBoxFlow Box flow output 11 nvoFlowSetpoint Flow setpoint output 22 nviBoxFlow Box flow input 28 nciVAVGain Gain for VAV 29 nciVAVItime Integral...

Page 44: ...r flow is proportional to the CO2 level and is calculated as a linear function between nciSpaceCO2Low nciMinFlow and nciSpaceCO2High nciMaxFlow The air flow is set to the highest value of those coming...

Page 45: ...roller digital input X3 or use nviEnergyHoldOff The energy hold off is enabled when either of these signals indicate an open window The energy hold off is made by the controller being set to off mode...

Page 46: ...e for heating valve TAC Xenta 102 VF only During cold periods there is often a back draught at the windows in the room To avoid this TAC Xenta 102 offers a possibility to have a little heat on even if...

Page 47: ...no longer than nciSpaceCO2High for more detects the state than 60 minutes comfort mode 4 Deviation in flow in VAV box The deviation is larger than 10 The controller no longer of nciMaxFlow for more t...

Page 48: ...e current flow in the master VAV box The value which is sent via the variable nvoHeatSlave is the state for heating the percentage and state for a possible fan A TAC Xenta 102 working as a slave contr...

Page 49: ...1 General TAC Xenta 102 is normally a very reliable controller Should any problems occur you can use the trouble shooting tips in this chapter preferably when the controller is run on a net work but a...

Page 50: ...t Positive value cooling negative value heating 9 nvoSpaceCO2 Zone CO2 sensor output 10 nvoEnergyHoldOff Energy hold off output window contact status 11 nvoFlowSetpoint Effective setpoint for VAV Comp...

Page 51: ...ldOff is enabled Outputs heating nvoUnitStatus and nvoTerminalLoad which is affected by normal control or nciHeatPrimMin Operation mode Forcing of controller 6 3 Problems and solutions What affects co...

Page 52: ...is lit for 15 seconds and then goes out This is not a fault but an indication that the controller answers a wink command from the network Current operation Current operation nvoEffectOccup Current val...

Page 53: ...VF max 35 VA Ambient temperature Operation 0 C 50 C Storage 20 C 50 C Humidity max 90 R H non condensating Housing Material ABS PC plastic Protection IP 30 Colour grey red Dimensions with semi protect...

Page 54: ...mo actuator for radiators K1 and KC1 Max voltage 250 V AC Max load 2 A Application program Cycle time 15 s LED light emitting diode colour Power supply green Service red Compatibility Standard compli...

Page 55: ...ta 7 2 1 With semi protection 7 2 2 Without semi protection 126 110 0 2 112 1 98 118 2 126 8 50 Figure 7 1 Dimensions mm for TAC Xenta 102 with semi protection 126 110 0 2 112 1 98 118 2 122 50 Figure...

Page 56: ...7 4 4 0 004 7516 1 GB TAC AB 1999 08 18 TAC Xenta 102 Handbook Technical data This page is intentionally left blank...

Page 57: ...A LNS based network management tool uses nciLocation when a data base should be recreated The monitoring of an already installed network is made by the LNS tool reading nciLocation and then using the...

Page 58: ...vo s to which they are bound a poll 8 3 Monitoring network variables Heartbeat In TAC Xenta 102 there is a function called Heartbeat which can be configured to monitor input and output variables on th...

Page 59: ...le variables and Configuration properties contains the configuration parameters Note The network variables indeces are not the same as the figure in nv in the figure 8 5 1 The node object s inputs nvi...

Page 60: ...rc 0 CFG_LOCAL 0 CFG_LOCAL Network configu SCPT_nwrk_config 1 CFG_EXTERNAL ration source 25 CFG_NUL 0 0 x80 25 8 6 The controller object The variables in the controller object figure 8 2 are separated...

Page 61: ...nciLocation SNVT_str_asc nciSetpoints SNVT_temp_setpt nciMinFlow SNVT_flow nciMaxFlow SNVT_flow nciNomFlow SNVT_flow nciMinFlowHeat SNVT_flow nciMinFlowStand SNVT_flow nciVAVGain SNVT_multiplier nciSn...

Page 62: ...17 nviSetpntOffset Yes SNVT_temp_p 10 C to 10 C 0 C Setpoint offset input 1 7 18 nviSpaceCO2 Yes SNVT_ppm 0 to 5000 ppm 65535 2 ppm Zone CO2 input 65535 2 1 13 19 nviEnergyHold Yes SNVT_switch 0 Off 1...

Page 63: ...000 output 1 4 4 nvoEffectSetpt Yes SNVT_temp_p 10 C to 35 C 327 67 C 2 Effective setpoint 327 67 C 2 output 1 16 5 nvoSpaceTemp Yes SNVT_temp_p 10 C to 50 C 327 67 C 2 Zone temperature 327 67 C 2 out...

Page 64: ...6 1 1 3 x80 66 29 nciVAVItime No SNVT_time_sec 0 s to 3600 s 900 s Integral time for VAV UCPT 3 60 minutes 15 minutes 1 1 3 x80 3 0 3600 30 nciGainHeat No SNVT_multiplier 0 to 32 7675 25 Gain for heat...

Page 65: ...er 1 1 3 80 10 0 1000 41 nciSpaceCO2 No SNVT_ppm 0 to 1000 1000 ppm Space CO2 level for High UCPT 11 open damper 1 1 3 80 11 0 1000 44 nciHeatPrimMin No SNVT_lev_percent 0 to 100 0 Minimum output UCPT...

Page 66: ...8 10 10 0 004 7516 1 GB TAC AB 1999 08 18 TAC Xenta 102 Handbook Communication This page is intentionally left blank...

Page 67: ...ing and cooling in comfort and economy mode from nviSetpoint plus or minus half the neutral zone in the comfort and economy modes which are calcu lated from the nciSetpoints The controller takes the d...

Page 68: ...int for both comfort and economy modes is 22 C By means of nviSetpoint this is moved to 23 C 3a With Method A you get the following result 3b With Method B you get the following result 2 You can allow...

Page 69: ...VAV box input nviBoxFlow 0 23 Heating control input for slave nviHeatSlave 0 Off 0 24 Application options nciAppOptions 00000000 25 Occupancy temp setpoints nciSetpoints Cooling setpoint comfort occu...

Page 70: ...unction Variable Default Set Note value value 44 Min output heating controller nciHeatPrimMin 0 45 Network configuration source nciInstallType 0 LOCAL 46 Send heartbeat nciSndHrtBt 0 0 seconds 47 Rece...

Page 71: ...chanical installation 3 1 menu tree 8 1 Minimum value for heating valve 5 14 N nciAppOptions 4 2 nciRcvHrtBt 4 4 nciSndHrtBt 4 4 Network installation 3 10 Network variable binding 3 10 neuron 1 3 node...

Page 72: ...Reg 2 2 0 004 7516 1 GB TAC AB 1999 08 18 TAC Xenta 102 Handbook Index This page is intentionally left blank...

Page 73: ...w of any errors unclear descriptions or suggested improvements Send the form to Or e mail to TAC AB helpdesk tac se Helpdesk J gershillgatan 18 SE 213 75 MALM SWEDEN I have found the following errors...

Page 74: ...TAC AB 1999 08 18 TAC Xenta 102 Handbook Reply form...

Page 75: ...TAC AB 1999 08 18 TAC Xenta 102 Handbook Reply form...

Page 76: ...TAC AB 1999 08 18 TAC Xenta 102 Handbook Reply form TAC AB J gershillgatan 18 SE 213 75 MALM SWEDEN 46 40 38 68 50 switchboard...

Search results

Summary of Contents for Xenta 102

Reviews:

Related manuals for Xenta 102

Brands by name

Popular brands

TAC Xenta 102, Handbook

Search results

Summary of Contents for Xenta 102

Reviews:

Related manuals for Xenta 102

Brands by name

Popular brands