Froling T4e - Page 19

Power connection and wiring | 2
B1820023_en | Service handbook Lambdatronic H 3200 - T4e 19
High efficiency pump with control signal and release contact
When using a high efficiency pump that requires a release contact in addition to the control signal (e.g.
Grundfos Magna 3), the pump outlet of the hydraulic module is used to switch the release.
FRHYU22
N
AO-P1
Pumpe 1Netz
PE L N PE L L
L N
L
N
PE
22 12
24 14
21 11
A2 A1
230 VAC power supply
r Connect the pump relay to output “Pump 1” or “Pump 2” and use the relay output for phase (L)
r Install and connect two-pole cable (2 x 0.75 mm
2
) from connection “AO-P1” or “AO-P2” to the pump and
connect terminal “+” with terminal “IN” of the pump
r Install and connect two-pole cable (2 x 0.75 mm
2
) from NOC on the relay to the pump using terminal “S/S” as
the release contact
r Connect power supply at pump connector
r In relevant menu, set pump to “Field pump PDM + valve” or “Field pump 0-10V + valve”