Appendix
91
Terminals extra-low voltage zone
X1A
Bus wiring – Bus RS485
X1B
Bus wiring – Bus RS485
X2
Outdor sensor – AF
X12
Reserve – S3
X3
Boiler sensor – KF
X13
Reserve – S2
X4
Flow sensor HK1 – VL1
X14
Return sensor – ZIRK
X5
Flow sensor HK2 – VL2
X15
Collector sensor – KOLL
X6
DHW sensor – WW
X16
Solar energy Flow –
VWMZ
X7
AC upper sensor – PO
X17
Solar energy Return –
RWMZ
X8
AC middle sensor – PM
X18
Reserve – S1
X9
AC lower sensor 1 – SPU1
X19
Flow rate 24V – Z_IN
X10
AC lower sensor 2 – SPU2
X20
Reserve – 0-10V
X11
Analogue voltage output –
OUT1
X21
Analogue voltage output –
OUT2
X34
Jumper
Terminals low voltage zone
X32
Accumulator pump – PLP
X31
Solar pump 1– Sol P1
X30
Domestic hot water – WW
X25 – 23/N
Mixer HK2 closing – M2
X33
Power supply 115V –
240V~
X25 – 13/N
Mixer HK2 opening – M2
X29
Return pump – Heat main
pump – ZP
X24
Burner demand 2 – BRanf
2
X28
Solar pump 2 – Sol P2
X23 – 23/N
Mixer HK1 closing – M1
X23 – 13/N
Mixer HK1 opening – M1
X22
Burner demand – BRanf 1
X26
Heating circuit pump – HK1
X27
Heating circuit pump – HK2
E1389EN 2.0
Operating manual Pelletronic Touch