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Solar Controller SRK868V6                                                                                       Installation and Operation Instructions 

http://www.keracontrols.com 

 

7

 
The Supply Power or the load power should 
ONLY be switched ON when the housing of 
the controller is CLOSED and secured.  
Make sure that the wiring and the enclosure 
are not damaged. 

 

 
 

   If needed, the thin plastic tabs in the wall of the 

terminal compartment cover may be broken off 
to facilitate routing of the wires 

(See Pic. 6)

 . 

 

 
 
 
 
 
 
 

 

Wiring Terminals  ( see Pic. 7) 

 
 
 
 
 
 
 
 
 

 

Pic. 7 

 

Abbreviation Function 

T1 

Solar Collector temperature sensor T1 

T2 

Tank temperature sensor T2, (Tank bottom) 

T3 

Tank temperature sensor T3 (Tank top) 

T4 

(Optional) User Hot Water pipe temperature sensor 

3-core wire to Display 

3-conductor cable Connection to Control Panel 

Power 

Power Supply Line 

Heating 

Output to control the Booster heating H1 

T

on

/

T

off

 

To Solar circulating pump P1 

Pipe circulation 

To User Hot Water circulating pump P2 

Electromagnetic Valve 

To activate Tank high temperature protection valve (R1) 

 
 

Pic. 6 

Содержание SRK868V6

Страница 1: ...System Controller for Solar Heating Model SRK868V6 Installation and Operation Instructions ...

Страница 2: ...itable for most types of Solar Heating systems Internal real time Clock with backup 3 temperature sensor probes 1 optional 1 Output for Solar panel circulating pump 1 Outputs for User Hot Water pipe circulating pump 1 High Power Output for water tank Booster Heating 1 Output for optional valve for overheat cooling Programmable Temperature Differential on the Solar Collector Programmable Water Tank...

Страница 3: ...f Solar circulating pump P1 6 OK Activate Deactivate selected function 7 o C o F Celsius Fahrenheit selection 8 SET Start of Programming modes or activation of special functions 9 Pipe timing Timer Programming mode for Hot Water pipe circulating pump P2 10 Recovery Reset the display to factory default settings 11 Temp Display Display the temperature readings 12 Clock Set the Clock 13 Heating Auto ...

Страница 4: ... System configuration examples 9 3 5 1 Configuration A 9 3 5 2 Configuration B 10 3 6 Differential Temperature control 10 3 7 Programmable Temperature controlled heating booster 11 3 8 Time controlled user Hot Water circulation 12 3 9 Temperature controlled user Hot Water circulation 12 3 10 Anti Freeze protection 13 3 11 High temperature protection mode 1 13 3 12 High temperature protection mode ...

Страница 5: ...e performed by qualified personnel Installation electrical wiring setup and maintenance of the device should be performed by trained professional personnel familiar with this manual and should follow the instructions contained herein The manufacturer cannot monitor the compliance with these instructions or the circumstances and methods used during installation operation and maintenance of this con...

Страница 6: ... latches in the back panel see Pic 3 2 2 Power Module Installation 2 2 1 Wall adaptor plate Mark the holes position on the wall Pic 4 Install the anchors and fasten the adaptor plate with screws Pic 4 Hang the Power Module on the adaptor plate 2 2 2 Wiring Disconnect ALL Power supply before opening the enclosure All guidelines and local safety regulations must be observed To access the wiring comp...

Страница 7: ...tate routing of the wires See Pic 6 Wiring Terminals see Pic 7 Pic 7 Abbreviation Function T1 Solar Collector temperature sensor T1 T2 Tank temperature sensor T2 Tank bottom T3 Tank temperature sensor T3 Tank top T4 Optional User Hot Water pipe temperature sensor 3 core wire to Display 3 conductor cable Connection to Control Panel Power Power Supply Line Heating Output to control the Booster heati...

Страница 8: ...age wiring like 120 230 or 400 volt wiring A minimum separation of at least 100 mm 4 is required If external electromagnetic fields are present e g from heavy current cables overhead train cables transformer substations radio and transmitters radio stations microwave devices etc then the sensor cables may have to be adequately shielded The Sensor cables may be extended to a maximum length of appx ...

Страница 9: ...witched ON Press the Heating button again to turn OFF this output immediately 3 4 Temperature display Press the Temp Display button repeatedly to review the current temperature readings for the collector T1 tank bottom T2 tank top T3 and the hot water pipe circulation sensor T4 The temperature of the tank bottom sensor T3 is displayed automatically when no operation is performed for at least 6 sec...

Страница 10: ...ump P1 is controlled by the temperature difference As long as the temperature difference between the collector and the tank is higher than the preset value this pump remains ON For example If the switch ON temperature difference is set to 8 o C 14F and the switch OFF temperature difference is 4o C 7F then for instance When the temperature in the bottom part of the tank is 20 o C 68F the collector ...

Страница 11: ...the OFF hours Press button to shift to the OFF minutes Press to set the minutes After 6 seconds the controller will lock in the settings Repeat the above steps three times for the 3 different periods per day The number 1 3 on the display will indicate the time period being preset Default settings 1 st heating period From 4 00 AM ON till 5 00 AM OFF 2 nd heating period the booster is deactivated Th...

Страница 12: ...ing normal operation the hot water circulation pump control output R1 can be turned ON manually by pressing the ON OFF button The Pipe circulation symbol will be displayed and the R1 output will be activated for a 3 minute period then it will stop automatically To stop the pump P2 manually press the ON OFF again 3 9 Temperature controlled user Hot Water circulation Note T4 sensor is not included w...

Страница 13: ...elow 10 o C 50F the heating booster output H1 will be switched ON automatically and it will be switched OFF when the water temperature T2 rises above 15 o C 59F To Enable Disable this function Press the SET button once The freeze protection temperature setting will flash The default setting is OFF display Press the OK button to enable this function Press button to adjust the switch ON temperature ...

Страница 14: ...setting will flash The default setting is OFF display Press the OK button to activate this function Press button to adjust the maximum temperature Adjustment range 80 o C to 99 o C 176F to 211F After 6 seconds the controller will lock in the settings To disable this function press the OK button while in the Maximum temperature preset mode The display will indicate This symbol on the display indica...

Страница 15: ...sensor if necessary T3 99 o C flashing T3 sensor fault Sensor wiring open or shorted Check sensor resistance value replace sensor if necessary E0 Connection fault between display and controller Connecting cable is open or shorted Check and replace if necessary 4 3 Preventing potential errors Review carefully the information below Call for the controller repair only when you are sure that none of t...

Страница 16: ...ons being satisfied The pump symbol on the display is flashing Pump power supply is interrupted Check the pump power cable Pump does not operate The pump symbol on the display is not flashing error message signal is flashing Fault short circuit or open circuit in the temperature sensor or its wiring On the controller read the current values from all connected temperature sensors replace all defect...

Страница 17: ... silicon cable 280 o C 9 1 or 2 NTC10K B3950 sensors 135o C for tank PVC cable 105 o C 9 optional 1 NTC 10K B3950 sensor 135 o C for hot water circul pump PVC cable 105 o C Inputs wiring connection Screw terminal 4 Outputs SPST N O relays 9 1 for Heating booster 16Amp 240Vac max max 2000W resistive load 9 1 for Solar circulating pump 5Amp 240Vac max max 600W load 9 1 for Hot Water circulating pump...

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