Control Modes And Functions - SystemAir GEO 300 Bedienungsanleitung

GB
• the overall length of the geothermal heat collector
• the inner diameter of the geothermal heat collector
• the composition of the liquid mixture
• the temperature of the liquid mixture
Caution
Calculation and adjustment has to be done by a local installer.
Adjust the pump according to the geothermal heat exchanger size to ensure ideal mode of operation.
• The flow rate of the pump must be 6-7 l per minute for GEO 300.
• The flow rate of the pump must be 9-10 l per minute for GEO 500.
6.4.1

Control modes and functions

General indicator
LED is lit up in green in normal operation
LED lights up/flashes in case of a fault
LED
Lights up red
Flashes red
Flashes red and green
Active control mode indicators:
Variable differential pressure Δp-v
278349 | v01
Problem
Blockage
Motor winding
Undervoltage or
overvoltage
Excessive module
temperature
Short-circuit
Faulty generator operation
Dry run
Overload
Constant differential pressure Δp-c
Cause
Rotor is blocked
Winding is defective
Mains power supply is too
low or high
Module interior is too
warm
Motor current is too high
Water is flowing through
the pump hydraulics but
there is no mains voltage
at the pump
Air in the pump
Sluggish motor, pump is
operated outside of its
specifications. The speed is
lower than during normal
operation
Commissioning |
Solution
Start the manual restart or
contact customer service.
Measure the mains voltage
and examine operating
conditions. Request
customer service.
Measure the mains
voltage, make sure the
amount of mixture and the
system pressure are
correct.
Make sure ambient
conditions are within
allowed range.
Constant speed
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