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USDT 3002

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Read this manual carefully to get the best perfomance from this unit.

USDT 3002

Unit Mounting
Power Connections
Operation
Troubleshooting

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Содержание USDT 3002

Страница 1: ...USDT 3002 Thanks for buying Read this manual carefully to get the best perfomance from this unit USDT 3002 Unit Mounting Power Connections Operation Troubleshooting manual ...

Страница 2: ...ted Any use outside of the copyright requires the approval of Thermo Technologies This especially applies for copies translations micro ﬁlms and electronic storage media Editor Thermo Technologies Important notice Accuracy of all texts and drawings in this manual are to the best of Thermo Technologies knowledge and consent The information and illustrations contained in this manual should act only ...

Страница 3: ...40050 Environmental temp 0 104 F Size 172 x 110 x 46 mm Mounting wall mounting mounting into patch panels is possible Power supply 115V Total power supply 2 x 1 A Mode of operation Typ 1 b Breaking capacity per relay electromechanical relay 2 x 1 A At the factory USDT 3002 is set to control a standard solar water heating system with an auxiliary relay to divert surplus heat The auxiliary relay can...

Страница 4: ... The power supply to the controller must be via an external power supply switch last step of installation and the line voltage must be 115 Volt 50 60 Hz Flexible lines are to be ﬁxed at the housing by enclosed strain relief supports and screws The controller is equipped with 2 relays for connection to system counterparts e g pumps valves etc can be con nected Relay 1 18 conductor R1 17 neutral con...

Страница 5: ...d 2nd relay R2 The sensor S4 TRF can optionally be used fas a ﬂow meter or a 4th temperature sensor Arr 2 1 2 2 Allocation of terminals for system 2 Arr 2 Symbol Speciﬁcation S1 collector sensor S2 tank sensor below S3 tank sensor at the top S4 TRF optional sensor for ﬂow meter additional tempe rature input R1 solar pump R2 pump for heat exchange Symbol Speciﬁcation S1 Collector sensor S2 Tank sen...

Страница 6: ...crolling forward through the indication menu or to increase the adjustment values The backwards key 2 is accordingly used for the reverse function Select a channel channel using the forward back keys 1 and 2 Brieﬂy press the center key so that SEt ﬂashes Adjust the value using the foward back keys then brieﬂy press the center key so that SEt permanently appearsThe adjusted value is now saved Addit...

Страница 7: ...r sensor Pump 3 way valves The ﬂow direction or the current bre aking capacity are always shown Heating circuit Tank 1 and 2 with heat exchanger After heating with burner symbol Temperature sensor 2 2 3 System screen only system screen Constantly green System functioning correctly Red green blinking blinking initialisation phase of manual operation Red blinking sensor defect 2 3 Blinking codes 2 3...

Страница 8: ...ing channel is only available if the option heat quantity measurement is deactivated OWMZ Please note S3 and S4 are only indicated if sensors are connected channel Arr speciﬁcation page 1 2 COL x x Temperature collector 1 9 TST x Temperature tank 1 9 TSTL x Temperature tank 1 below 9 TSTU x Temperature tank 1 above 9 S3 x Temperature sensor 3 9 TRF Temperature return sensor 9 S4 Temperature sensor...

Страница 9: ...e operating hours counter adds up the solar operating hours of the respective relay h P Completed hours are shown on the display and may be reset back to 0 Select the operating hours channel h P The center button for approx 2 seconds in order to get back into the RESET mode of the counter The display symbol is ﬂashing and the operating hours will be set to 0 Press the center button again to save t...

Страница 10: ...he switch off temperature difference DF DT O Switch on temperature Adjustment range 2 0 40 0 Ra Factory setting 12 0 DT F Switch off temperature diff Adjustment range 1 0 38 Ra Factory setting 8 0 Ra Primarily the controller works in the same way as a standard differential controller If the switch on difference DTO is reached the pump is activated If the adjusted switch off temperature is underrun...

Страница 11: ...ustment range OFF ON Factory setting OFF The minimum collector temperature must be exceeded so that the solar pump R1 R2 is switched on The minimum temperature shall avoid a steady starting up of the solar pump or solid fuel boiler charging pumps for low collector temperatures If the minimum temperature is underrun in the display is shown ﬂashing 4 1 13 Recooling function 4 1 12 Antifreeze functio...

Страница 12: ...ed for storage of surplus energy or after heating AH O AH F the 2nd relay is used for after heating AH O AH F the 2nd relay is used for use of surplus energy On the display is shown if the second relay output is activated 4 1 15Thermostat function Arr 2 after heating use of surplus energy AH O 2nd relay switch on temperature Adjustment range 32 203 F Factory setting 104 F AH F 2nd relay switch off...

Страница 13: ...over spare fuse is enclosed in the accessory bag Operating control lamp ﬂashes red On the display appears the symbol and the symbol Sensor defect An error code is shown on the relevant sensor indication channel instead of a temperature 88 8 888 8 Line break Check the line Short circuit Check the line Pt1000 temperature sensors pinched off can be checked with an ohmmeter In the following the resist...

Страница 14: ... replace Decaliﬁcation no Heat exchanger plugged yes no Cleaning Heat exchanger too small yes New calculation of the dimension no Plausibility control of the option tube collector spe cial function Change Ton and Toff accordingly Switch on temperatu re difference Ton too large no yes Collector sensor unfavor able placed e g contact sensor instead of immersion sleeve sensor o k no Pump is overheate...

Страница 15: ...p in manual operation yes There is no current check fuses replace them and check power supply The adjusted temperature difference for starting the pump is too high choose an matching setting no Is the current of the pump released by the controller yes Is the pump stuck Put the pump into operati on by means of a screwdri ver is it passable now Is the pump defective replace it Are the fuses of the c...

Страница 16: ... thermomax com 6 Accessories Overvoltage protection We highly recommend installing the overvoltage protection in order to avoid damages at the collector e g by lighte ning Sensors Our product range includes high precision temperature sensors ﬂatscrew sensors ambient temperature sensors indoor temperature sensors cylindrical clip on sensors and irradiation sensors also to be used as full sensors wi...

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