3
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Solar controller for standard solar systems with electric backup heating
The DeltaSol
®
AL E HE controller is especially designed for standard solar sys-
tems with a high-efciency pump and an electric backup heating.
It is equipped with a PWM output and two high-current relays to which an electric
immersion heater of up to 3 kW (230 V~) can be connected. The heater can be
directly connected to the controller without the need of auxiliary relays.
For data communication, the controller has a VBus
®
.
Contents
1 Overview ...............................................................................................4
2 Installation ............................................................................................5
2.1 Mounting .........................................................................................................................5
2.2 Electrical connection ....................................................................................................6
2.3 Grundfos Direct Sensor
TM
...........................................................................................7
2.4 PWM interface ...............................................................................................................7
2.5 Data communication / Bus ...........................................................................................7
2.6 Terminal allocation with cable link ............................................................................8
2.7 Terminal allocation without cable link ......................................................................9
3 Operation and function .....................................................................10
3.1 Buttons ......................................................................................................................... 10
3.2 System-Monitoring-Display ...................................................................................... 10
3.3 Slide switch .................................................................................................................. 12
3.4 Flashing codes ............................................................................................................. 12
3.5 Shortcuts for backup heating off, rapid heat-up and holiday mode ................ 12
4 Commissioning ...................................................................................13
5 Control parameters and display channels .......................................15
5.1 Channel overview ...................................................................................................... 15
6 Channel overview ...............................................................................17
6.1 Display channels .......................................................................................................... 17
6.2 Adjustment channels ................................................................................................. 20
7 RCTT Remote control (accessory) ..................................................33
8 Troubleshooting ..................................................................................34
9 Accessories .........................................................................................37
9.1 Sensors ......................................................................................................................... 38
9.2 VBus
®
accessories ...................................................................................................... 38
10 Index ....................................................................................................39
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