I/O connections
6 720 645 172 (2010/07) en
4
2 I/O connections
Temperature inputs PT1000 HP
Ai1 E11.T1 Flow E21
Ai2 E10.T2 Outdoor E21
Ai3 E4x.T3 Hot water E2x
Ai4 T6 Hot gas E2x
Ui1 T8 Heat transfer fluid
out (flow from heat
pump)
E2x
Ui2 T9 Heat transfer fluid
in (return to heat
pump)
E2x
Ui3 T10 Collector circuit in E2x
Ui4 T11 Collector circuit out E2x
Tab. 2 Temperature inputs PT1000
Potential-free, digital inputs 24Vac HP
Di1 IND/SSM
E11.G1
Signal circulation
pump heating
system
E21
Di2 B11 EVU / External
control
E2x
Di3 E71.E1.B31
E51.B11
E2.F21
Thermostat
Differential
pressure monitor
Additional heat
alarm
E21
Di4 E1 IND Operating reply
compressor
E2x
Di5 G2.F13 Motor cut-out heat
transfer fluid pump
E2x
Di6 G3.F13 Motor cut-out
collector circuit
pump
E2x
Di7 RLP Low pressure
switch
E2x
Di8 RHP High pressure
switch
E2x
Di7+
8
K11 Safety switch E2x
Tab. 3 Potential-free, digital inputs 24Vac
Analogue outputs 0-10Vdc HP
Ao1 E71.E1.Q71
E51.Q51
Additional heat
mixing valve,
heating system
E21
Ao2
Ao3
Ao4 G2 Heat carrier pump E2x
Ao5 G3 Collector circuit
pump
E2x
Tab. 4 Analogue outputs 0-10Vdc
Digital outputs 230Vac HP
Do1 E1 Compressor E2x
Do2 E71.E1
E2.E1
Start additional heat
Internal electric
additional heat stage
1
E2x
Do3 E2.E2 Internal electric
additional heat stage
2
E2x
Do4
E4x.Q1x
Q21
3-way valve hot water
External
Internal
E2x
Tab. 5 Digital outputs 230Vac
Digital outputs potential-free (inverted) HP
Do5 E11.G1 Circulation pump,
heating system
E21
Do6 E71.E1.G71
E31.G33
Circulation pump
mixed additional
heat
External collector
circuit pump
E21
E2x
Do7 P2 General alarm (A/
AB)
E2x
Tab. 6 Digital outputs potential-free (inverted)
Accessories Quantity HP
Mixing valve/Pool/Room
sensor (Multi-regulator)
0-9 E21
Tab. 7 Accessories