User`s manUal
Contents
1. TEMPERATURE SETTING OF HOT WATER TANK With knob 2 you can set max temperature T C 45 in water tank between 5 C and 85 C 25 eo When the temperature is reached thermostat deactivates pump and closes motorised ball valve regardless the temperature of heating _ source If hot water is used by the appliance with limited max temperature of inflow this setting is very useful DIFFERENCE SETTING With knob 3 you can set temperature difference of heating source collectors boiler and in user hot water tank between OK and 15K Heating effect is provided when heating source temperature is higher than the temperature of the user water in hot water tank Consequently minimum difference should be 3K 5K The difference is set in relation to the volume of heat losses of the system which depend on lengths of pipes from source to the Cooling living space with blowing the cool outside air into the living space OPERATION DTC 200 2G single differential thermostat measures the temperature of outside air and inside air Cooling effect is provided when cooling source temperature is lower than the temperature of inside air Consequently minimum difference should be 2K When the temperature of outside air is below the temperature of inside air it switches on the ventilator The thermostat switches off the ventilator if pre set minimum temperature is reached adjustable from 5 to 85 C FIRST ROTOT2. USER S MANUAL DTC 200 2G Differential thermostat can be used for Heating sanitary water with possibility to control the burner Cooling living space with blowing the cool out side air into the living space DEAR CUSTOMER You have bought a DTC 200 2G differential thermostat manufac tured according to the latest quality and safety standards It is designed in compliance with strict criteria and requirements of West European markets and enables efficient use of solar energy which enables considerable savings of other sources for domestic water heating It was tested at TUV institute in Munchen Our products are available in the markets for several years and satisfy the needs of demanding customers from hot Greece to north Germany We 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 USER S MANUAL This manual is for user It describes the operation of differential K ENERALLY With differential thermostat there are three possible ways of use 1 HEATING THE DOMESTIC HOT WATER FROM ONE HEATING SOURCE SOLAR COLLECTORS BOILERS HEAT PUMP WITH CONTROLLING THE HEATING SOURCE BURNER Differential thermostat controls the electric motor actuated ball valve EMV 110 and the circulation pump If it necessary turns ON or OFF the heating source burner 2 HE
3. OPERATION DTC 200 2G single differential thermostat measures the tem perature of heating source 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 difference should be 3K 5K Rec ommendable minimal value is 5K When the temperature of the source exceeds the temperature around the user for pre set difference opens the electric motor actuated ball valve and switches the pump The thermostat switches off the pump if pre set temperature is reached in hot water tank adjustable from 5 to 85 C If it s need for heating the hot water tank and the temperature of heating source boiler is to low then thermostat switch on the burner of the boiler and when the conditions of the difference is assured pump is switch on The burner is always on when the heating is needed CONTROL PANEL OFF AUTO __ ON vy ON 1 2 eo Px AT K T C 45 eet ww lee Cg Ey 5 LEGEND 1 Selector switch for choosing the operation 2 Knob for setting temperature in DHWT domestic hot waten tank 3 Knob for setting temperature difference of heating source collectors boiler and in user hot water tank 4 LED indicator for burner operation 5 LED indicator for pump operation Use of selector switch With selector
4. of pipes from source to the water tank and on pipeline insulation 45 HEATING THE DOMESTIC HOT WATER FROM ONE HEATING SOURCE SOLAR COLLECTORS BOILERS HEAT PUMP WITH ADDITIONAL HEATING WITH ELECTRICAL HEATER Differential thermostat controls the electric motor actuated ball valve EMV 110 and the circulation pump In case that the primary heating source solar collectors boilers has not enough energy water in water tank is heated with electrical heater OPERATION DTC 200 2G single differential thermostat measures the temperature of heating source 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 difference should be 3K 5K Recommendable minimal value is 5K When the temperature of the source exceeds the temperature around the user for pre set difference opens the electric motor actuated ball valve and switches the pump The thermostat switches off the pump if pre set temperature is reached in hot water tank adjustable from 5 to 85 C If its need for heating the hot water tank and the temperature of heating source boiler collector is to low then thermostat switch on electrical heater Electrical heater heats water to desire temperature Electrical heater is active when the primary heating source is inactive they never work at same time Pr
5. switch 1 you select one of the following modes of operation J OFF l OFF Irrespective of temperature values the pump is off Auto ON 1 AUTO Automatic operation of thermostat ION 1 2 normal operation L ON 1 Irrespective of temperature values the pump is on This mode is designed for testing purposes servicing and in case of troubles ON 1 2 Irrespective of temperature values the pump and burner are on This mode is designed for testing purposes servicing and in case of troubles Mode OFF doesn t enable galvanic separation from mains When replacing the pump disconnect supply voltage A TEMPERATURE SETTING OF HOT WATER TANK With knob 2 you can set max temperature in T C water tank between 5 C and 85 C When the temperature is reached thermostat deactivates pump and close motorised ball valve regardless the temperature of heating source If hot water is used by the appliance with limited max temperature of inflow this setting is very useful DIFFERENCE SETTING With knob 3 you can set temperature difference of heating source collectors boiler and in user hot water tank between OK and 15K Heating effect is provided when heating source temperature is higher than the temperature of the user water in hot water tank Consequently minimum difference should be 3K 5K The difference is set in relation to the volume of heat losses of the system which depend on lengths
6. time EMV 110 502 7930 OO0OO HOT WATER In night time the temperature of water in DHWT is usually higher than in collector In this case it is possible coaxial cooling of the DHWT through one pipe If the pipe has enough diameters and it is straight and vertical then water circulation begins in just one pipe In the middle water goes upwards and at the edges downwards For preventing coaxial cooling in night time it is necessary to build in motorised ball valve EMV 110 in heating pipe of Se hee r a a a a See ae ee ae ae ae ae ae ae ae ae retaliate tat teers SSM r D DHW tank exchanger YY Ss y l One solution for this is to build in nonreturn valve COLD WATER But with its use is increased the load of pump the flow reduced and the ventilation of the system hindered All these problems are solved by the motorised ball valve series EMV 110 FIRST ROTOTEHMNIKA s p Radegunda 54 SI 3330 Mozirje Slovenija 4 tel 386 3 898 35 00 fax 386 3 898 35 35 e mail info first si http www first si
7. ATING THE DOMESTIC HOT WATER FROM ONE HEATING SOURCE SOLAR COLLECTORS BOILERS HEAT PUMP WITH ADDITIONAL HEATING WITH ELECTRICAL HEATER Differential thermostat controls the electric motor actuated ball valve EMV 110 and the circulation pump In case that the primary heating source solar collectors boilers has not enough energy water in water tank is heated with electrical heater 3 COOLING LIVING SPACE WITH BLOWING THE COOL OUTSIDE AIR INTO THE LIVING SPACE Differential thermostat controls the ventilator thermostat and it s correct use Before setting the parameters be sure in which way of use is used Carefully read the instructions st qrsi3s SS to make good use of the product I A A A We reserve the right to modify the instructions and the technical aita 1 data of the product without prior notice ID 0706 22 DTC200 2g upo ang FIR T ROTOTEHNIKA s p Radegunda 54 SI 3330 Mozirje Slovenija 1 tel 386 3 898 35 00 fax 386 3 898 35 35 e mail info first si http www first si DTC 200 2G 1st WAY OF USE HEATING THE DOMESTIC HOT WATER FROM ONE HEATING SOURCE SOLAR COLLECTORS BOILERS HEAT PUMP WITH CONTROLLING THE HEATING SOURCE BURNER
8. Cooling effectis provided when cooling source temperature is lower than the temperature of inside air Consequently minimum difference should be 2K tel 386 3 898 35 00 fax 386 3 898 35 35 e mail info first si http www first si DTC 200 2G TROUBLE POSSIBLE FAILURE REMEDY The pump is not operating irrespective Power supply is not connected Check power supply of temperature Selector switch is in position OFF Set the selector switch in position AUTO DHWT sensor T2 is disconnected Check sensor Collector sensor T1 is short circuited Check sensor The pump operating permanently Selector switch is in position ON1 Set the selector switch in position AUTO irrespective of temperature Collector sensor T1 is disconnected Check sensor DHWT sensor T2 is short circuited Check sensor The pump and burner operating Selector switch is in position ON1 2 Set the selector switch in position AUTO permanently irrespective of Collector sensor T1 is disconnected Check sensor temperature DHWT sensor T2 is short circuited Check sensor Temperature regulation of DHW tank Motorised ball valve is permanently open Check the installation is not working or nonreturn valve is open thermosiohon water circulation is enabled In spite of enough collector s energy Setting of DHWT temperature is too low Check settings the water temperature in DHWT is not The difference setting is set to high high en
9. EHMNIKA s p Radegunda 54 SI 3330 Mozirje Slovenija DTC 200 2G CONTROL PANEL E DTC 200 2G LEGEND 1 Selector switch for choosing the operation 2 Knob for setting minimal ambient temperature 3 Knob for setting temperature difference of cooling source outside air and ambient 4 LED indicator not in function 5 LED indicator for ventilator operation Use of selector switch With selector switch 1 you select one of the following modes of operation J OFF m OFF Irrespective of temperature Auto values the ventilator is off ON 1y i AUTO Automatic operation of lon 1 2 thermostat normal operation G ON 1 Irrespective of temperature values the ventilator is on This mode is designed for testing purposes servicing and in case of troubles ON 1 2 Irrespective of temperature values the ventilator is on This mode is designed for testing purposes servicing and in case of troubles Mode OFF doesn t enable galvanic separation from mains When replacing the pump disconnect supply voltage MINIMAL TEMPERATURE SETTING OF AMBIENT With knob 2 you can set min temperature in ambient 5 C and 85 C When the ambient temperature is reached thermostat deactivates ventilator regardless the temperature of cooling source outside air T C 45 DIFFERENCE SETTING With knob 3 you can set temperature difference of cooling source outside air and in ambient between OK and 15K
10. iority has main heating source collector boiler CONTROL PANEL OFF AUTO ON Lg ON 1 2 t Ma je AT K T C 45 CSi F O S E DTC 200 2G 2 FIR T ROTOTEHNIKA s p Radegunda 54 SI 3330 Mozirje Slovenija tel 386 3 898 35 00 fax 386 3 898 35 35 e mail info first si http www first si LEGEND 1 Selector switch for choosing the operation 2 Knob for setting temperature in DHWT domestic hot water tank 3 Knob for setting temperature difference of heating source collectors boiler and in user hot water tank 4 LED indicator for need for heating water in DHW tank It doesn t show working of el heater 5 LED indicator for pump operation Use of selector switch With selector switch 1 you select one of the following modes of operation Torr 199P AUTO __ ON 1 lon 1 2 OFF Irrespective of temperature values the pump and burner are off AUTOAutomatic operation of thermostat normal operation ON 1 Irrespective of temperature values the pump is on This mode is designed for testing purposes servicing and in case of troubles ON 1 2 Irrespective of temperature values the pump and el heater are on This mode is designed for testing purposes servicing and in case of troubles Mode OFF doesn t enable galvanic separation from mains When replacing the pump disconnect supply voltage
11. ough water is too cold The temperature is reached but the Jumpers are not set correctly Check jumper s settings heating cooling is still running In AUTO position nothing happens Jumpers are pulled out Set jumpers in suitable position Advantages of motor actuated ball valves of EMV110 series with incorporated relay module for solar heating system In solar heating systems motor actuated ball valves can prevent EMV 110 602 4230 various inconveniences SSP o 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 100 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 o Dueto installed RELAY module they enable control with make contact only o 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 o Possibility of manual control This function relieves airing the system or filling the system with water o It prevents coaxial cooling of DHWT by one pipe in night
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