DTC 100/2 TDG
Contents
1. Install it as immersion sensor in collecting pipe at the top of the collectors in provided sleeve picture A Connect it on terminals 1 and 2 Recommended type of cable J Y St 1x2x0 6 For cables longer than 15m we recommend over voltage protection with CDR resistor picture B T piece 1 2 VDR resistor thermo shrinkable ON A flow tubes q direction lt x pipe1 2 sensor conductor TI extension d L conductor SENSOR INSTALLATION IN WATER TANK A Install sensor with PVC gray isolation Install T2 sensor to provided place in hot water tank or on hot water tank r wall under isolation as contact sensor in lower part of exchanger When sensor is mounted as contact one we recommend coating it with heat conducting Z paste or liquid metal ZO p N 12 En 2 2 In special purpose vertical On hot water tank with clip wire and In special purpose side horizontal tube sensor should be spring strip use paste for better heat tube protect against protected against accidental transmission extraction extraction Warning By mounting sensors must be assured suitable mechanical protection and sensors must be protected against atmosphere influence DTC 100 2 TDG TESTING SENSORS For testing purposes you can simulate temperatures with resist2. Differential thermostat for solar systems and combined heating sources and regulation of burner or electric heating element DTC 100 2 TDG User s manual Installation and maintenance instructions C FIRST ROTOTEHNIKA s p PE VELENJE Radegunda 54 3330 MOZIRJE Koroska cesta 56a 3320 VELENJE tel 03 898 35 00 fax 03 898 35 35 www first si e mail info first si ID 2605 01 DTC100 2TDG ang indd DTC 100 2 TDG DEAR CUSTUMER Congratulations You have bought a DTC 100 2TDG differential thermostat manufactured according to the latest quality and safety standards It is made according to the state of art and efficiently utilizes solar energy or alternative sources for domestic water heating VVe are convinced that the use of our product will satisfy your needs too and help you to save your money Thanks for your confidence FIRST Rototehnika THE SET CONSIST OF Differential thermostat DTC 100 2TDG 1 collector sensor with silicone conductor 2 hot water tank sensor with PVC conductor Clip for sensor fastening with fixing springs Instruction for use Warranty certificate In case any of above specified elements are missing or are defective require your dealer to replace it Read the instructions carefully in order to be able to make use of all advantages of the product WARNING All examples listed in the instructions are merely indicative The manufacturer accepts no responsibili
3. T te E gt EMV 110 602 4230 12
4. difference settings 2K 15K Hysteresis of difference 1K 2K Number of sensors 2 COUR OU 2x relay 230V 50Hz 1 1 A SPST ee pump control burner control eem T MENS 2X sensors BSF1 PVC gray cable lenght 1 5m DHWT sensor KF Silicon red cable lenght 2m collector sensor ak kes ba ta ant peson 5 70 non condensed Storehouse temperature 0 C 70 C Tr le shootin TROUBLE POSSIBLE FAILURE REMEDY Thermostat inoperative Plug not connected Connect plug in socket Water cools down during night Selector switch not in AUTO Set the switch to AUTO position position One of retaining valves Check machine installation of the system inoperative We recommend installation of enables thermosiohon water motor actuated ball valve circulation When pump is active Retaining valve makes noise Replace nonreturn valve with unplesant noise in installation weak spring motor actuated ball valve is heard Irrespective of the Selector switch 2 in position Set selector switch 2 to temperatures pump is OFF T2max 1 set too AUTO position inoperative low under 20 C Increase T2max Irrespective of the temp Selector switch 2 in ON Set the switch to AUTO pump is continuosly switched position position on When 1 key 7 is pressed T1 sensor is interrupted Check T1
5. after each change of knob 1 position you must wait 5 sec to see the change on the display DIFFERENCE SETTING The difference is set with three keys situated under the display Press dT 4 C key and on display and pre set difference appear With Y and keys decrease or increase the pre set value When new required value is e entered press once again the dT key to store this new value It will remain ATi T2max T stored also if thermostat is disconnected from the mains A Bk fe When you set the required difference press key T1 and hold it um On the display appears P r and hold down the key approximately 3s e until the sign P r disappear and on display appears the temperature T1 ATi Then release the key ns If you release the key too soon entered value is not effective c COUNTER OF PUMP WORKING HOURS NTER OF PUMP WORKING HOUR MENU Press all three keys together and hold them about 5sec on display appears value of pump working hours 1 T2max 1 v 4 RESETTING COUNTER OF PUMP WORKING HOURS Press the middle key and hold it about 10sec until reset of the counter On E 4 display apears value 8 play ap 1 T2max 1 v CIE LU LL DTC 100 2 TDG Examples 1 Heating DHWT domestic hot water tank with solar coll
6. ectors Electrical connection 27 T BURNER 27 NI LINI LI LIN T 11112 w P M L Li N e 2 Heating DHWT with solar collectors To prevent thermo circulation of water at night time we recommend use of motor actuated ball valve More on last page Electrical connection 3j i TI T2 ell 42 4 ler L a N o AE M panna AYE e 3 Heating DHWT with solid fuel boiler Electrical connection 37 i BURNER P EMV lt NLNLILIN T 11 12 EX T1 T2 lt 1 4 mmm Jh L N 4 amp DTC 100 2 TDG 4 Heating DHWT with oil or gas boiler Q Boiler control BURNER DTC 100 2TDG N L 11 12 I Operating Safety thermostat thermosta e alle Boile
7. ight for pump operation Onna Control light for burner operation Key for adjustment of thermostat difference donc Key for max required temperature display or difference decreasing 8 Key for collector temperature display or difference increasing E OF SELECTOR SWITCH FOR MANUAL CONTROL OFF auro ON OFF Irrespective of temperature values the pump and burner are off X A AUTO Automatic operation of thermostat normal operation ON Irrespective of temperature values the pump and burner are on OFF and ON positions are used only for operation tests OFF position does not enables galvanic separation from mains TEMPERATURE DISPLAY During normal use display shows T2 witch is the temparature of water C in hot water tank If you press T1 key the display shows the temparature in collectors MENU T1 Temparature remains displayed until the key is presed cub uM If you press T2max key the display shows the maximum temparature set with the knob 1 DTC 100 2 TDG TEMPERATURE SETTING OF HOT WATER TANK You can set maximum water temperature of hot water tank from 10 to 90 with the right key When the temperature is reached the thermostat deactivate the pump regardless the temperature of heating source If hot water is used by the appliance with limited maximum temperature of inflow this setting is very useful NOTE Regulator reaction time is 5 sec max therefore
8. ntial thermostat measures the temperature of two heating sources collectors boiler and in user hot water tank Heating effect is provided when heating source temperature is higher than the temperature of the user water in hot water tank Consequently minimum adjustable difference is 2 factory set to 5 When the temperature of the source collector exceeds the temperature around the user for pre set difference it switches ON the pump and opens motor actuated ball valve The thermostat switches OFF the pump if pre set temperature is reached in hot water tank adjustable from 10 to 90 If boiler or electric heating element is connected the thermostat can switch it ON When is heating required thermostat switches ON heating source When the temperature of the source collector exceeds the temperature around the user for pre set difference the thermostat switches ON the pump and opens motor actuated ball valve If any sensor is faulty interrupted or short circuited thermostat immediately switches off the pump and signalizes the condition on the display Er1 sensor interrupted Er2 sensor short circuited DTC 100 2 TDG INSTALLATION OF THERMOSTAT Install the thermostat on hot water tank chasing or close to it Do not install it under the pipe fittings or valves due to possible water dripping on its housing SENSOR INSTALLATION IN COLLECTOR OR BOILER KF A Install sensor with silicon red isolation
9. ors Temp Temp Rr Temp Rr Temp CC 0 CC CC CC 9 50 i 1040 51 45 1094 70 40 45 40 1150 29 50 30 __ i 1265 65 15 1449 18 30 2075 16 75 _ 2814 26 120 3666 49 10 i 1513 14 35 i 2151 70 80 i 2903 37 125 i 3768 16 Sensor dimensions 45 ki 1 5m sensor BSF1 PVC gray I 2m sensor KF silicon red ELECTRICAL CONNECTION A Before opening unplug power supply Only qualified person can maintain the thermostat Grounding wires should be connected to special screw terminals situated on right side of terminal strips BURNER 11 12 TIS m A The thermostat is designed for fixed instalation When performing electric instalation an element should be inserted which enables at least 3 mm separation of thermostat from the mains switch or socket Prir to each intervention in the thermostat first disconnect it from the mains DTC 100 2 TDG NTROL PANEL OFF AUTO ON NTT T2 max 50 30 NS l 70 1 e e Regulation of maximum required temperature in hot water tank 10 90 OS Operation switch for operation mode selector OFF AUTO ON Display 4 Control l
10. r Electrical connection 5 Heating DHWT with electrical heater DTC Differential thermostat DTC 100 2 TDG T1 T2 Sensors T1 colector sensor T2 DHWT sensor P Pump Non return valve BURNER lt NILINIL 11 12 sm tal i 2 a 3 AN jem L eee See Electrical connection 3 mi di lo BURNER h L ES 11 12 Electric motor actuated ball valve EMV 110 series 602 603 Electrical heater Safety thermostat of electric heater Relay DTC 100 2 TDG HOLES FOR EASIER INSTALLATION OF DIFFERENTIAL THERMOSTAT ON WALL J LA ML D ZU a E DTC 100 2 TDG Technical Supply voltage 230V 50Hz 10 Power consumption 4 VA Type of thermostat P Measurement area 40 C do 160 C Adjustable temperature range 10 C 90 C Adjustable
11. senzor Er1 appears When 1 7 key is pressed T1 sensor is short circuited Check T1 senzor Er2 appears Er1 is shown on display 2 sensor is interrupted Check T2 senzor Er2 is shown on display T2 sensor is short circuited Check T2 senzor Control light of the pump is on Pump bloked or cable of the Chekthe pump and connection but the pump is inoperative pump interrupted to regulator DTC 100 2 TDG Advantages of motor actuated ball valves of EMV110 series with incorporated relay module for solar heatin m In solar heating systems motor actuated ball valves can prevent various inconveniences Effectively prevent hydraulic shocks in systems as they require 30 seconds for complete opening Due to their shape they do not impede the flow Springs are not included therefore noise does not appear When closed 100 sealing is guaranteed They have an output for pump up to 1000 W in open position therefore they do not present a hydraulic load for pump in closed position They enable pump switching on only in completely open position Due to installed RELAY module they enable control with make contact only If during closing or opening process impurities enter in valve which could block it the valve stops and immediately afterwards continues with opening or closing process in opposite direction so that water flow can rinse the impurities up to cleaning net anti blocking system EMV 110 603 4230 E E
12. ty for incorrect hydraulic connection of machine part of installations should comply with all safety regulations defined by law and the rules We reserve the right to modify the instructions and the technical data of the product without prior notice DTC 100 2 TDG GENERAL DTC 100 2TDG is a single differential thermostat featuring temperature display designed for domestic water heating from one heating source solar collectors boilers heat pumps The thermostat controls pump or motor actuated ball valve EMV 110 and burner or electric heating element Parameter settings 1 Regulation of maximum temperature in hot water tank from 10 to 90 This temperature is defined by T2 sensor witch is generally mounted in upper third of heat exchanger 2 Regulation of difference for higher exchanger from 2K to 15K With this parameter you define how much the value of the source temperature collector boiler should exceed the temperature of water around the exchanger in hot water tank that the regulator activates the pump or opens motor actuated valve The difference is set in relation to the volume of heat losses of the system which depend on lengths of pipelines from source to hot water tank and on pipeline insulation Built in digital display enables prompt reading of the temperatures of individual sensors and of all set values as well 3 It has built in counter of pump working hours OPERATION DTC 100 2TDG single differe
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