Regulus STDC E Instruction Manual Download Page 22

 

22

REGULUS - STDC E Controller - www.regulus.eu

F 5.11 - Tset 

(Thermostat1)

„Thermostat“

 has 2 functions:

Backup (heating) - if the parameter value of 

„Tset on“

 is lower than that of 

„Tset off“

If the temperature at sensor S1 falls below 

„Tset on“

 and the 

„Thermostat“

 function is on, the backup 

heating relay switches on and stays on until the temperature reaches 

„Tset off“

.

Example:

 The storage tank shall be heated from a backup source to keep its temperature above 50 °C. A heat 

source pump shall be wired to relay R.
Set Tset On = 50 °C, Tset Off = 58 °C. When the temperature in the tank falls below 50 °C, relay R will switch 
on and remain switched until the tank heats up to 58 °C. 

Heat exchange (tank recooling) - if the parameter value of 

„Tset on“

 is higher than that of 

„Tset off“

If the temperature at sensor S1 falls below 

„Tset on“

 and the 

„Thermostat“

 function is on, the recooling relay 

switches on and stays on until the temperature reaches 

„Tset off“

.

Example:

 When the tank temperature exceeds 60 °C, the surplus heat shall be conveyed into the heating 

system. A heat source pump shall be wired to relay R.
Set Tset On = 60 °C, Tset Off = 52 °C. When the temperature in the tank exceeds 60 °C, relay R will switch on 
and remain switched until the tank cools down to 52 °C. 

Setting range:
Tset on: 10-90 °C / Default setting: 50 °C
Tset off: 0-99 °C / Default setting: 60 °C

If a S2 sensor is installed, then S1 sensor shall be used for switching on (Tset On) and S2 for 
switching off (Tset Off).

F 5.20 - Tmax S1 

If this value is exceeded at sensor S1, then the controller switches the associated pump and/or valve on. If the 
temperature at sensor S1 drops below this value by 5 °C, then the pump and/or the valve are switched off again.

Setting range: 0-99 °C (for hydraulic variants 

„Thermostat“ 

and 

„Universal 

Δ

T“

 this value may be set to Off)

Default setting: 60 °C (for hydraulic variant 

„Solar system with pool“

 the default setting is off)

Temperature values which are set too high will allow higher solar heat accumulation but it shall be 
checked that all system components are resistant to high temperature and scalding protection is 
provided. Regulus solar systems are safe for heating water up to 95 °C. 

F 5.21 - Thermostat periods

Set the desired periods of time when the thermostat should be active. 2 periods can be set per day, settings 
can also be copied to other days. Outside the set times the thermostat is switched off.

Setting range: from 00:00 to 23:59 /default setting: 06:00 to 22:00

F 5.22 - Tmax S3 

Switch-off temperature at S3 sensor
If this value is exceeded at sensor S3, the controller switches the relay off. If the temperature falls below this 
value again, the controller switches the relay on again. For switching on and off further conditions shall be met 
as well. 

Setting range: from 0 °C to 99 °C / default setting: 60 °C 
(if the selected variant does not use S3, the default setting is Off).

Temperature values which are set too high will allow higher solar heat accumulation but it shall be 
checked that all system components are resistant to high temperature and scalding protection is 
provided. Regulus solar systems are safe for heating water up to 95 °C.

Party function (for Thermostat function only)

With the party function the storage tank is heated up once to the set temperature (TsetS1), disregarding the 
set thermostat times.
 
The party mode is enabled by pressing the 

„esc“

 key for 3 seconds in the main menu. While this mode is 

active, the system heats up to the set value Tset Off unattached to preset thermostat times. The mode is 
ended once the required temperature is reached.

Caution

Danger

Danger

Summary of Contents for STDC E

Page 1: ...EN v 1 5 STDC E Controller Instruction Manual...

Page 2: ...boiler with storage tank 10 D 4 Heat transfer between storage tanks 10 D 5 Return line preheating 11 D 6 Thermostat 11 D 7 Universal T 12 D 8 Stop valve 12 D 9 Solar thermal system with heat exchange...

Page 3: ...of the entire solar system It is forbidden to tamper with the Controller with the exception of a written consent from the Manufacturer It is forbidden to install any additional components into the Co...

Page 4: ...erature sensors for immersion sleeves 2 screws 3 5 35 mm and 2 plugs 6 mm for wall installation 4 strain relief clips with 8 screws 1 terminal block for PE replacement fuse 2A slow blow Instruction Ma...

Page 5: ...urn line preheating 6 B 6 Thermostat 7 B 7 Universal T 8 B 8 Stop valve 9 B 9 Solar thermal system with heat exchanger and swimming pool 8 Stop valve 9 Sol rn syst m s tepeln m v m n kem a baz nem Hea...

Page 6: ...t of the housing up to the selected position and mark the 2 mounting holes Make sure that the wall surface is as even as possible so that the housing does not become distorted when it is screwed on 5...

Page 7: ...installed for switching off the controller Caution C 2 Electrical wiring Wiring instructions 1 Make sure the circuit breaker is in off position and power supply is off 2 Select a suitable hydraulic sc...

Page 8: ...controller operates with Pt1000 temperature sensors Max S1 sensor lead length is 30 m with its cross section at least 0 75 mm2 Max S2 and S3 sensor lead length is 10 m with its cross section at least...

Page 9: ...tor N R pump L N pump N R NC contact PE protective conductor green yellow D 2 Solar thermal system with swimming pool Sensor connection max 12V Terminal connection for S1 2 sensor 1 collector S2 2 sen...

Page 10: ...protective conductor green yellow D 4 Heat transfer between storage tanks Sensor connection max 12V Terminal connection for S1 2 sensor 1 storage tank S2 2 sensor 2 storage tank S3 2 sensor 3 free The...

Page 11: ...y valve on the return line relay R off valve closed flow direction AB B no backup heating relay R on valve open flow direction AB A flow through the storage tank D 6 Thermostat Sensor connection max 1...

Page 12: ...is higher than the temperature at sensor 2 relay R switches turning pump on D 8 Stop valve Sensor connection max 12V Terminal connection for S1 2 sensor 1 heating line S2 2 sensor 2 storage tank S3 2...

Page 13: ...ensor 1 solar collector S2 2 sensor 2 pool S3 2 sensor 3 pool water circuit The polarity of the sensors is freely selectable V1 0 10V or PWM Mains voltage 230V 50Hz Terminal connection for L mains pha...

Page 14: ...r the changes which have been made should be saved The function of each of the other three keys is shown in the display line directly above the keys the right hand key 4 generally has a confirmation a...

Page 15: ...ould be used to test the switch outputs with the consumers connected and to check the sensor values for plausibility Then switch on automatic mode Read the explanations for the individual parameters o...

Page 16: ...e values with explanations 2 Function control of the system with operating hours etc 3 Select graphics mode or overview mode 4 Automatic mode manual mode or switch unit off 5 Set parameters needed for...

Page 17: ...sc exits the Info mode If Error appears on the display instead of the measurement value then there may be a defective or improper temperature sensor If the cables are too long or the sensors are not p...

Page 18: ...are available day year F 2 2 Average temperature difference T Display of the average temperature difference between the reference sensors of the solar system with the consumer switched on F 2 3 Heat o...

Page 19: ...es and operating states of the connected consumers F 3 2 Overview In overview mode the measured temperatures and operating states of the connected consumers are shown in text form F 3 3 Alternating In...

Page 20: ...cted F 4 2 Manual The relay and thus the connected consumer are switched on and off by pressing a key with no regard to the current temperatures and the parameters which have been set The measured tem...

Page 21: ...e again then the pump and or the valve are switched off again Setting range 0 99 C for hydraulic variants Thermostat and Universal T this value may be set to Off Default setting 60 C for hydraulic var...

Page 22: ...in Setting range 0 99 C for hydraulic variants Thermostat and Universal T this value may be set to Off Default setting 60 C for hydraulic variant Solar system with pool the default setting is off Temp...

Page 23: ...drops further to the set value Frost stage 2 the controller switches the pump on continuously If the collector temperature then exceeds the value Frost stage 2 by 2 C the pump switches off again Frost...

Page 24: ...overheating It is also useful during holiday absence when no heat is used F 6 7 Anti Legionella With the AL function activated the STDC makes it possible to heat the storage tank up to a higher temper...

Page 25: ...V pumps on output R1 Use this setting for standard pump only PWM 0 10V outputs are switched off 0 10V Speed control for special pumps via low energy pump output V1 by means of a 0 10V Relay output R1...

Page 26: ...ng 10 0V Heating 0 0 to 5 0V Default setting 0 0V F 7 2 6 0 10V Max This determines the output signal for the highest speed of the pump that is used e g during purging or manu al operation Setting ran...

Page 27: ...p is switched off Mode V2 Speed control set to T starts from the min speed After the purging time at min speed the controller switches to the set min speed If the temperature differ ence T between the...

Page 28: ...min F 7 3 4 Max speed The maximum speed of the pump is specified here Setting range 70 to 100 Default setting 100 The indicated percentages are guide values that may vary to a greater or lesser extent...

Page 29: ...ns for the individual parameters in these instructions and check whether further settings are necessary for your application F 7 7 Factory settings All of the settings that have been made can be reset...

Page 30: ...the sensor is often not at the hottest location When the start help is activated the following sequence is carried out If the temperature at the collector sensor increases by the value specified unde...

Page 31: ...or selecting Exit menu lock The menus listed below remain completely accessible despite the menu lock being activated and can be used to make adjustments if necessary F 1 Measurements F 2 Statistics F...

Page 32: ...issioning The choice of languages may differ however depending on the device design Language selection is not available in every device design The latest version contains the following languages Germa...

Page 33: ...than 6 times in 5 minutes Restart Means that the controller was restarted for example due to a power failure Check the date and time G 2 Replacing the fuse Repairs and maintenance may only be perform...

Page 34: ...OPEAN DIRECTIVE 2002 96 ES European Directive 2002 96 EC requires that the equipment bearing this symbol on the product and or its packaging must not be disposed of with unsorted municipal waste The s...

Page 35: ......

Page 36: ...01 2017 REGULUS spol s r o Do Kout 1897 3 http www regulus eu 143 00 Praha 4 E mail sales regulus cz...

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