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© 08140 isolar2.mon

us.ind

d

|

1

3

2

backwards

forward

SET

(selection / adjustment mode)

The system monitoring display consists of 3 blocks: 

channel 

display,

 

tool  bar 

and 

system  screen

  (active  arrange-

ment).

The 

channel display 

consists of two lines. The upper line 

is  an  alpha-numeric  16-segment  display  (text  display)  for 
displaying  channel  names  and  menu  items.  In  the  lower 
7-segment display, the channel values and the adjustment 
parameters are displayed.
Temperatures  and  temperature  differences  are  indicated 
in°C or K

 

respectively.

2.2.1  Channel display

channel display

2.2.2  Tool bar

The additional symbols in the 

tool bar 

indicate the actual  

system status.

tool bar

2.  Operation and function

2.1  Buttons for adjustment

The controller is operated via the 3 push buttons below the 
display. The forward-button (1) is used for scrolling forward 
through the display menu or to increase the adjustment va-
lues. The backward-button (2) is similarly used for scrolling 
backwards and reducing values.

In order to access the adjustment mode, scroll down in the 
diplay menu and press the forward button (1) for approx. 
2 seconds after you have reached the last diplay item. If an 

adjustment value 

is shown on the display,  the „

SEt“ 

icon 

is displayed. Now, you can access the adjustment mode by 
using button 3.

•  Press buttons 1 and 2 in order to select a channel
•  Briefly press button 3, „SEt“ will flash
•  Adjust the value by pressing buttons 1 and 2
•  Briefly press buttons 3, so that „SEt“ permanently 

appears, the adjusted value will be saved.

2.2   System monitoring display

Complete Monitoring-Display

Symbol

standard

flashing

relay 1 active

tank maximum limitation
active / maximum tank
temperature exceeded

collector cooling function or 

recooling function active

antifreeze- function activated

collector minimum limitation 
or antifreeze function active

 

collector emergency shutdown 
or tank emergency shutdown 
active

 + 

sensor defect

 + 

manual operation active

SET-mode, change of adjust-
ment value is possible

Summary of Contents for iSolar 2

Page 1: ...Thank your for buying this product Read this manual carefully to get the best perfomance from this unit Mounting Connection Operation Troubleshooting Examples 49005030 49005030 ...

Page 2: ...com pliance with the technical data specified in these instructions see p 3 Improper use excludes all liability claims Instructions Attention should be paid to valid local regulations the statutory provisions for preven tion of industrial accidents the statutory provisions for environ mental protection the Health and Safety at Work Act 1974 Part P of the Building Regulations 2005 BS7671 Requiremen...

Page 3: ...al tempera ture controller with optional system functions Function control according to BAW guidelines operating hours counter for solar pump tube collector function pump speed control as well as heat quantity measurement Inputs for 4 temperature sensors Pt1000 Outputs 1 Semiconductor relay Bus VBus Power supply 115V Mode of operation Type 1 y Switching capacity semiconductor relay 1 1 A 115 V The...

Page 4: ... 08140 isolar2 monus indd 4 Examples iSolar 2 For detailed connection diagrams see chapter 1 Standard solar systems ...

Page 5: ...and tighten 1 Installation WARNING Always switch off power supply and disconnect the controller from the mains before opening the housing 1 2 Electrical connection The power supply to the controller must be carried out via an external power switch last step and the supply voltage must be 115 V 50 60 Hz Flexible cables must be attached to the housing with the enclosed strain relief and the correspo...

Page 6: ...es with aVBus for data communication and energy supply of external modules The connection is effected with optional polarity at the clamps marked with VBus Via this data Bus you can install one or more VBus modules e g heat quant measurement module WMZ M1 large display GA3 Data logger DL1 Smart Display SD3 Additionaly the controller can be connected to the PC with the help of a RS COM adapter With...

Page 7: ...ustment va lues The backward button 2 is similarly used for scrolling backwards and reducing values In order to access the adjustment mode scroll down in the diplay menu and press the forward button 1 for approx 2 seconds after you have reached the last diplay item If an adjustment value is shown on the display the SEt icon is displayed Now you can access the adjustment mode by using button 3 Pres...

Page 8: ...r collectors with collector sensor pump tank 1 and 2 with heat exchanger After heating with burner symbol temperature sensor 2 2 3 System screen system screen green everything OK red green flashing initialisation phase manual operation red flashing sensor fault sensor symbol is flashing quickly 2 3 Flashing codes 2 3 2 LED flashing codes 2 3 1 System screen codes Pump symbols are flashing during i...

Page 9: ...ing the initialisation phase the operating control lamp flashes red and green After initialisation the controller is in the automatic mode with typical settings The pre programmed system scheme is Arr 1 2 select adjustment channel Arr change to the mode see 2 1 select the arrangement via the Arr index number save the adjustment by pressing the button Now the controller is ready for operation with ...

Page 10: ...eturn sensor 11 S4 Temperature sensor 4 11 n x Pump speed relay 1 11 h P x Operating hours relay 1 11 kWh Heat quantity kWh 12 MWh Heat quantity MWh 12 Arr 1 Arrangement 9 DT O x Switch on temperature difference 13 DT F x Switch off temperature difference 13 DT S x Set temperature difference 13 RIS x Rise 13 S MX x Maximum temperature tank 1 13 EM x Emergency temperature collector 1 14 channel des...

Page 11: ... of the current temperature at the sensor TR temperature return TRF other mea sured tempe ratures Display range 40 482 F 4 1 5 Current pump speed Display of the current pump speed of the corresponding pump n current pump speed 1 pump system n current pump speed Display range 30 100 4 1 6 Operating hours counter h P h P1 h P2 Operating hours counter Display channel The operating hours counter accum...

Page 12: ...e 0 3 Factory setting 1 MED Antifreeze concen tration Vol When MEDT 0 or 3 is used the parameter MED is hidden Adjustment range 20 70 Factory setting 45 The flow rate as well as the reference sensors S1 flow and S4 return are used for calculating the heat quantity sup plied It is shown in kWh in the channel kWh and in MWh in the channel MWh The overall heat quantity results from the sum of both va...

Page 13: ... tank temperature exceeds 295 F S MX Maximum tank temp Adjustment range 40 480 F Factory setting 140 F DT S Set temperature difference Adjustment range 3 0 60 0 Ra Factory setting 20 0 Ra RIS Rise Adjustment range 2 40 Ra Factory setting 4 Ra This function is a standard differential control If the switch on differential is reached DTO the pump is operated The pump runs at 100 speed for 10 seconds ...

Page 14: ...es the loading circuit between the collector and the tank when the temperature falls below the adjusted antifreeze temperature This will protect the fluid against freezing or coagulating If the adjusted antifreeze temperature is exceeded by 2 F the loading circuit will be deactivated Please note Since this function uses the limited heat quantity of the tank the antifreeze function should be used i...

Page 15: ...ntroller will automatically switch to solar loading If the collector temperature deacreases by 4 Ra during standstill the switch on value for the tube collector function will be recalculated OTC Tube collector function Adjustment range OFF ON Factory setting OFF 4 1 14 Recooling function If the adjusted maximum tank temperature S MX is reached the controller keeps the solar pump running in order t...

Page 16: ... 1 16 Pump speed control A relative minimum pump speed is allocated to the output R1 via the adjustment channel nMN Attention When loads which are not speed controlled e g valves are used the value must be changed to 100 in order to deactivate pump speed control nMN Pump speed control Adjustment range 30 100 Factory setting 40 4 1 18 Language In this channel different languages are available dE Ge...

Page 17: ...and the are shown Sensor fault An error code instead of a temperature is shown on the sensor display channel 88 8 888 8 Cable is broken Check the cable Short circuit Check the cable Disconnected Pt1000 temperature sen sors can be checked with an ohmmeter In the following table the resistance values corresponding to different temperatures are listed F Ω F Ω 14 961 131 1213 23 980 140 1232 32 1000 1...

Page 18: ...xchanger blocked yes no Clean it Heat exchanger too small yes Repalce with correctly sized one no Plausibility control of the tube collector function Change Ton and Toff correspondingly Switch on temperature difference Ton too large no yes Non ideal position of coll ector sensor e g flatscrew sensor instead of sensor in immersion sleeves o k no Pump is overheated but no heat transfer from the coll...

Page 19: ...tart up in manual operation yes No current check fuses replace them and check power supply The adjusted temperature difference for starting the pump is to high choose a value which makes more sense no Is the pump current re leased by the controller yes Is the pump stuck Turn the pump shaft using a screwdriver now pas sable Pump is defective re place it Are the controller fuses o k Controller might...

Page 20: ...pecifications can be changed without prior notice The illustrations may differ from the original product Reprinting copying This mounting and operation manual including all parts is copyrighted Another use outside the copy right requires the approval of CALEFFI NORTH AME RICA Inc This especially applies for copies translations micro films and the storage into electronic systems Editor CALEFFI NORT...

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