Froling T4e - 2.2.2.3 Connecting an isolating valve to the hydraulic module

Power connection and wiring | 2
B1820023_en | Service handbook Lambdatronic H 3200 - T4e 21
High efficiency pump without control signal
When this type of pump is used, the speed is not controllable! The use of a line regulating valve (e.g.: Setter
balancing valve) is recommended!
FRHYU22
N
Pumpe 1Netz
PE L N PE L L
r Connect the power supply for the high efficiency pump to output "Pump 1" or “Pump 2” and use the relay
output for phase (L)
r Using the RC element, connect the phase (L) for switching over and the neutral conductor (N) of the valve to
the output “Pump 1” or “Pump 2”
r Connect the phase (L) for continuous supply of the valve (switches the valve back to the initial position) to
the power supply at terminal “L”
r In the relevant menu, set the pump to “HE pump without control signal”
Connecting an isolating valve to the hydraulic module
FRHYU22
N
Pumpe 1
Netz
PE L N PE L L
r Phase (L) for switching the valve and connecting neutral conductor (N) to output “Pump 1” or “Pump 2” using
the relay output for phase (L)
r Connect the phase (L) for continuous supply (switches the valve back to the initial position) to the power
supply at terminal “L”