ESR31
Surcharge for acquisition of parts
For some products, we have to add a surcharge of 14 Euros net per ordered piece. Please read about background information and details in the following Link.
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Simple solar controller with graphical display
The ESR21 or ESR31 unit is a multi-purpose differential controller. The graphical display of ESR31 simplifies program selection and shows the position of the sensors in the hydraulic diagram. Additional information can be read in via the DL bus. Thus, in parallel to the controller operation (solar system) it is also possible to calculate the yield (thermal energy). The range of use extends from the single circuit solar system through to sanitary water treatment by way of pump speed control.
Scope of delivery:
- 1 collector sensor (KFPT1000)
- 1 DHW tank sensor (BFPT1000)
- 1 immersion sleeve 140 mm (TH140)
- power cable
- installation equipment
Scope of delivery:
- 1 collector sensor (KFPT1000)
- 2 DHW tank sensors (BFPT1000)
- 2 immersion sleeves 140 mm (TH140)
- power cable
- installation equipment
Scope of delivery:
- 1 collector sensor (KFPT1000)
- 1 DHW tank sensor (BFPT1000)
- 1 immersion sleeve 140 mm (TH140)
- power cable
- installation equipment
Scope of delivery:
- 1 collector sensor (KFPT1000)
- 2 DHW tank sensors (BFPT1000)
- 2 immersion sleeves 140 mm (TH140)
- power cable
- installation equipment
- 17 different programs can be set
- Clear display with hydraulic diagrams
- Status display for system malfunctions
- Solar start function, frost protection function
- Pump blocking if a collector overtemperature exists
- System function control
- Heat meters
- DL bus for data evaluation via C.M.I. and for connection of
- external sensors
- Speed control of high efficiency pumps via control output
- PWM / 0-10 V
- Speed control of standard pumps: ESR31-D
3 Inputs
2 Outputs
- 1x relay or triac output
- 1x PWM / 0-10 V
Interfaces
- DL bus
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