Ideal Heating EVOMAX 2, Руководство пользователя

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APPENDIX 1b Boiler n Slave Configuration Options
Figure 15 SeQueNCe CONTrOL 1-16 BOiLerS, BOiLer N
Figure 16 SeQueNCe CONTrOL 1-16 BOiLerS, BOiLer N WiTH CT PuMP CirCuiT
Figure 17 SeQueNCe CONTrOL 1-16 BOiLerS, BOiLer N WiTH CT PuMP AND iNDireCT HWS CirCuiT
Figure 18 SeQueNCe CONTrOL 1-16 BOiLerS, BOiLer N WiTH 2 X CT PuMP CirCuiT
A. KM821 ‐ I5, System Manager and TTL ‐ VariCAN adapter only
Boiler 1, Master configuration options Boiler n, Slave configuration options Extension Module configuration options
Sequence control 1 ‐ 16 boilers Sequence control 1 ‐ 16 boilers, Boiler n Extension module with 1 x Mixing circuit
S ‐ FT RT ‐ SC RT ‐ MC
S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn Bn S ‐ OT ‐ MC V ‐ MC
P ‐ MC
S ‐ FT ‐ MC
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *OT1 or RT ‐ MC
Sequence control Sequence control, Boiler n Heating circuit, Mixing
Sequence control 1 ‐ 16 boilers with Mixing header and System pump Sequence control 1 ‐ 16 boilers, Boiler n with CT Pump circuit Extension module with 2 x Mixing circuits
S ‐ FT P ‐ SC RT ‐ SC S ‐ RT ‐ PC RT ‐ PC RT ‐ MC1 RT ‐ MC2
S ‐ RT ‐ SC S ‐ RT ‐ MC1 S ‐ RT ‐ MC2
S ‐ OT B1 Bn S ‐ OT ‐ PC Bn P ‐ PC S ‐ OT ‐ MC1 V ‐ MC1 S ‐ OT ‐ MC2 V ‐ MC2
P ‐ MC1 P ‐ MC2
S ‐ FT ‐ MC1 S ‐ FT ‐ MC2
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *Opentherm or SL1
Sequence control Sequence control, Boiler n CT Pump Circuit SL1 is Heating Circuit control Heating circuit, Mixing circuit 1 Heating circuit, Mixing circuit 2
Sequence control 1 ‐ 16 boilers with Indirect Hot Water Storage Tank Sequence control 1 ‐ 16 boilers, Boiler n with CT Pump circuit and Indirect HWS circuit Extension module with 1 x Mixing circuit and 1 x CT Pumped circuit
S ‐ FT RT ‐ SC, T ‐ HWS S ‐ RT ‐ PC RT ‐ PC, T ‐ HWS RT ‐ MC S ‐ RT ‐ PC RT ‐ PC
S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn P ‐ HWSC S ‐ OT ‐ PC Bn P ‐ PC P ‐ HWSC S ‐ OT ‐ MC V ‐ MC S ‐ OT ‐ PC P ‐ PC
S ‐ FT ‐ PC
TS ‐ HWS TS ‐ HWS P ‐ MC
S ‐ HWS S ‐ HWS S ‐ FT ‐ MC
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *Opentherm or SL1
Sequence control Hot Water Storage SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit) Sequence control, Boiler n CT Pump Circuit Hot Water Storage SL1 is Heating Circuit control Heating circuit, Mixing CT Pump Circuit
SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit)
Sequence control 1 ‐ 16 boilers with a CT Pump circuit Sequence control 1 ‐ 16 boilers, Boiler n with 2 x CT Pump circuit Extension module with 1 x Mixing circuit and 1 x Air Handler circuit
S ‐ FT S ‐ RT ‐ PC RT ‐ SC S ‐ FT S ‐ RT ‐ PC1 S ‐ RT ‐ PC2 RT ‐ PCn RT ‐ MC S ‐ RT ‐ HC RT ‐ HC
S ‐ RT ‐ SC S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn P ‐ PC S ‐ OT ‐ PC Bn P ‐ PC1 P ‐ PC2 S ‐ OT ‐ MC V ‐ MC S ‐ OT ‐ HC P ‐ HC
S ‐ FT ‐ HC
P ‐ MC
AH ‐ HC
S ‐ FT ‐ MC
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *Opentherm1 or SL1, Opentherm2 or SL2
Sequence control CT Pump Circuit Sequence control, Boiler n CT Pump Circuit 1 CT Pump Circuit 2 SL1 is Heating Circuit control Heating circuit, Mixing Heater Circuit
SL2 is Heating Circuit control
Sequence control 1 ‐ 16 boilers with Common pump and optional valves Extension module with 1 x Mixing circuit and 1 x HWS circuit
S ‐ FT RT ‐ SC RT ‐ MC, T ‐ HWS
S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn S ‐ OT ‐ MC V ‐ MC PP ‐ HWS
SP ‐ HWS
P ‐ MC TS ‐ HWS
S ‐ FT ‐ MC S ‐ ST ‐ HWS
V ‐ B V ‐ B
P ‐ SC
*SL1 is Plant control
Sequence control Heating circuit, Mixing Hot Water Storage
Sequence control 1 ‐ 16 boilers, with local DHW demand Extension module with 2 x Air Handler circuit
V ‐ DHW S ‐ FT RT ‐ SC S ‐ RT ‐ HC1 RT ‐ HC1 S ‐ RT ‐ HC2 RT ‐ HC2
S ‐ RT ‐ SC S ‐ OT ‐ HC1 P ‐ HC1 S ‐ OT ‐ HC2 P ‐ HC2
S ‐ OT B1 Bn
S ‐ FT ‐ HC1 S ‐ FT ‐ HC2
TS ‐ HWS AH ‐ HC1 AH ‐ HC2
S ‐ HWS
P ‐ B P ‐ B
Heater Circuit Heater Circuit
*SL1 is Plant control
Sequence control
Extension module with 1 x CT pumped circuit and 1 x HWS circuit
Single Boiler with a CT Pump circuit and DHW tank
S ‐ RT ‐ PC RT ‐ MC, T ‐ HWS
S ‐ RT ‐ PC RT ‐ PC, T ‐ HWS
S ‐ OT ‐ PC P ‐ PC PP ‐ HWS
SP ‐ HWS
S ‐ OT P ‐ PC P ‐ HWSC
S ‐ FT ‐ PC
TS ‐ HWS
TS ‐ HWS
S ‐ ST ‐ HWS
S ‐ HWS
CT Pump Circuit Hot Water Storage
*Opentherm or SL1
Boiler CT Pump Circuit Hot Water Storage SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit)
Extension module with 1 x CT pumped circuit and 1 x HWS circuit
Single Boiler with 2 x CT Pump circuits
S ‐ RT ‐ PC1 RT ‐ PC1 S ‐ RT ‐ PC2 RT ‐ PC2
S ‐ OT ‐ HWS PP ‐ HWS1 PP ‐ HWS2
SP ‐ HWS1 SP ‐ HWS2
S ‐ OT P ‐ PC1 P ‐ PC2
TS ‐ HWS1 TS ‐ HWS2
S ‐ ST ‐ HWS1 S ‐ ST ‐ HWS2
Hot Water Storage Hot Water Storage
*Opentherm1 or SL1, Opentherm2 or SL2
Boiler CT Pump Circuit CT Pump Circuit
Extension module with Mixing control to Plate Heat Exchanger for Direct HWS
Single Boiler with CT and HWS Zone circuits
S ‐ DHW
SP ‐ HWS DHW out
S ‐ RT ‐ PC1 RT ‐ PC1, TS ‐ HWS
V ‐ MC
S ‐ OT ‐ HWS
S ‐ OT
S ‐ FT ‐ HWS
V ‐ CT V ‐ HWS S ‐ FT ‐ MC
TS ‐ HWS
TS ‐ HWS
S ‐ M ‐ HWS
S ‐ HWS
S ‐ B ‐ HWS
P ‐ SYS
*Opentherm or SL1 P ‐ MC
Boiler CT Pump Circuit Hot Water Storage SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit)
P ‐ HWS
CWS in
Single Boiler with 2 x CT Zone circuits
Direct HWS
S ‐ RT ‐ CT1 RT ‐ PC1 S ‐ RT ‐ CT2 RT ‐ PC2
Extension module with Mixing control to Plate Heat Exchanger for Direct HWS with DHW pump
S ‐ OT V ‐ CT1 V ‐ CT2
S ‐ DHW
SP ‐ HWS DHW out
V ‐ MC
S ‐ OT ‐ HWS
S ‐ FT ‐ HWS
P ‐ SYS S ‐ FT ‐ MC
TS ‐ HWS
DHW ret
P ‐ DHW
*Opentherm1 or SL1, Opentherm2 or SL2
Boiler CT Pump Circuit CT Pump Circuit S ‐ M ‐ HWS
S ‐ B ‐ HWS
P ‐ MC Alternative
DHW ret
P ‐ HWS P ‐ DHW
CWS in
Direct HWS
Extension module with Mixing control to Plate Heat Exchanger for Direct DHW with pump
V ‐ MC
S ‐ OT ‐ HWS
S ‐ FT ‐ HWS
S ‐ FT ‐ MC DHW out
DHW ret
P ‐ DHW
P ‐ MC CWS in
Direct DHW
Extension module with Primary Buffer Mixing control to Plate Heat Exchanger for Direct DHW with pump
V ‐ MC
S ‐ OT ‐ HWS
S ‐ FT ‐ HWS
S ‐ FT ‐ MC DHW out
DHW ret
S ‐ PB
P ‐ DHW
P ‐ MC CWS in
Direct DHW with Primary Buffer
VariCAN
Adapter B1..Bn..EMn
VariCAN
Adapter
B1..Bn..EMn
DI1
Ext. Timer/
Enable or
Holiday
DI3
Ext. Timer/
Enable or
Holiday
VariCAN
Adapter B1..Bn..EMn
Bn Connections
DI3
Ext. Timer/
Enable or
Holiday
VariCAN
Adapter B1..Bn..EMn
DI1 Ext. Timer
or Enable
S ‐ PB S1
Override
or Pump Flt
DI2
S ‐ ST ‐ HWS2 S4
TS ‐ HWS1 DI1
S ‐ OT ‐ HWS S3
S ‐ ST ‐ HWS1 S1
DI3 TS ‐ HWS2
DI1
Ext. Timer/
Enable or
Holiday
DI2
Override
or Pump Flt
S4 S ‐ HWS
DI3 TS ‐ HWS
DI4
Override
or Pump Flt
VF4 PP ‐ HWS
S1 S ‐ RT ‐ PC VF5 SP ‐ HWS
S2 S ‐ FT ‐ PC
OT1
RT ‐ PC,
T ‐ HWS
S3 S ‐ OT ‐ PC
DI4
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
Bn Connections
Inputs Outputs
VF1 P ‐ PC
OT2 RT ‐ HC2
S4 S ‐ RT ‐ HC2
S5 S ‐ FT ‐ HC2
S6 S ‐ OT ‐ HC2
DI3
Ext. Timer/
Enable or
Holiday
S ‐ FT ‐ HC1 VF4 P ‐ HC2
S3 S ‐ OT ‐ HC1 VF5 AH ‐ HC2
DI1
Ext. Timer/
Enable or
Holiday
DI2
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
DI3 TS ‐ HWS
Bn Connections
Inputs Outputs
OT1 RT ‐ HC1 VF1 P ‐ HC1
S1 S ‐ RT ‐ HC1 VF2 AH ‐ HC1
DI4
Override
or Pump Flt
DI2
Override
or Pump Flt
S4 S ‐ HWS
Inputs Outputs
VF1 P ‐ MC
S1 S ‐ RT ‐ MC
VF2 V ‐ MC open
S2 S ‐ FT ‐ MC
VF3 V ‐ MC close
S3 S ‐ OT ‐ MC
VF4 PP ‐ HWS
Ext. Timer/
Enable or
Holiday
VF5
S4 S ‐ RT ‐ HC
S5 S ‐ FT ‐ HC
S6 S ‐ OT ‐ HC
DI3
Ext. Timer/
Enable or
Holiday
S1 S ‐ RT ‐ MC VF2 V ‐ MC open
S2 S ‐ FT ‐ MC VF3 V ‐ MC close
S3 S ‐ OT ‐ MC VF4 P ‐ HC
DI1
Ext. Timer/
Enable or
Holiday
VF5 AH ‐ HC
DI4
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
Bn Connections
Inputs Outputs
OT1 RT ‐ MC VF1 P ‐ MC
OT2 RT ‐ PC
S4 S ‐ RT ‐ PC
S5 S ‐ FT ‐ PC
S6 S ‐ OT ‐ PC
DI3
Ext. Timer/
Enable or
Holiday
S3 S ‐ OT ‐ MC VF4 P ‐ PC
DI1
Ext. Timer/
Enable or
Holiday
DI2
Override
or Pump Flt
Opentherm2
RT ‐ PC2
Opentherm2
RT ‐ PC2
SL1
VariCAN
Adapter
B1..Bn
SL2 or Enable
or Override
Bn Connections
DI1
Ext. Timer/
Enable or
Holiday
P1 (0 ‐ 10V)
V ‐ CT1
Boiler Connections
Inputs Outputs
Opentherm1 RT ‐ PC1 Boiler run
Room S ‐ RT ‐ PC1
Room S ‐ RT ‐ CT2
or P2
SL1 RT ‐ CT1
P1 (0 ‐ 10V)
V ‐ CT1
SL2
RT ‐ CT2
or P2
P3 V ‐ CT2
Tank S ‐ RT ‐ CT2 or P2
SL1 RT ‐ CT1
P3 V ‐ HWS
SL2
TS ‐ HWS or P2
Boiler Connections
Inputs Outputs
Opentherm RT ‐ PC1 Boiler run
Room S ‐ RT ‐ PC1 Boiler fault
Outside S ‐ OT P1 (0 ‐ 10V)
P ‐ SYS
Boiler fault
Outside S ‐ OT
P1 (0 ‐ 10V)
P ‐ SYS
Room S ‐ RT ‐ PC2
Boiler Connections
Inputs Outputs
Opentherm1
RT ‐ PC1 Boiler run
Room S ‐ RT ‐ PC1
Boiler fault
Outside S ‐ OT
P1 (0 ‐ 10V)
P ‐ PC1
or P2
SL1 RT ‐ PC1
P3 P ‐ PC2
SL2
RT ‐ PC2
P ‐ HWSC
SL2
Outside S ‐ OT P1 (0 ‐ 10V)
P ‐ PC
Tank S ‐ HWS or P2
SL1 RT ‐ PC
TS ‐ HWS
P3
Bn Connections
Inputs Outputs
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
S2 S ‐ FT ‐ MC VF3 V ‐ MC close
S6 S ‐ FT ‐ DHW
S7 SP ‐ HWS
VF5 P ‐ DHW
P ‐ MC VF1
DI2
Override
or Pump Flt
DI2
Override
or Pump Flt
Inputs Outputs
S2 S ‐ FT ‐ MC VF1 P ‐ MC
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
S6 S ‐ FT ‐ DHW VF3 V ‐ MC close
S7 SP ‐ HWS VF5
VariCAN
Adapter B1..Bn..EMn
P ‐ DHW
S6 S ‐ FT ‐ DHW
S7 SP ‐ HWS
DI1 TS ‐ HWS
DI2
Override
or Pump Flt
S3 S ‐ FT ‐ HWS VF3 V ‐ MC close
S5 S ‐ B ‐ HWS VF4 P ‐ HWS
S6 S ‐ FT ‐ DHW VF5 P ‐ DHW
Inputs Outputs
S1 S ‐ M ‐ HWS VF1 P ‐ MC
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
Bn Connections
Inputs Outputs
S1 S ‐ M ‐ HWS VF1 P ‐ MC
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
DI1 TS ‐ HWS
VF3 V ‐ MC close
VF4 P ‐ HWS
DI2
Override
or Pump Flt
S7 SP ‐ HWS
S3 S ‐ FT ‐ HWS
S5 S ‐ B ‐ HWS
Bn Connections
B1..Bn..EMn
VariCAN
Adapter
Override
or Pump Flt
DI4
VF4 PP ‐ HWS2
VF5 SP ‐ HWS2
Bn Connections
Inputs Outputs
VF1 PP ‐ HWS1
VF2 SP ‐ HWS1
VariCAN
Adapter
B1..Bn..EMn
Header S ‐ FT
Outside S ‐ OT
P3 V ‐ DHW
S2
SL2
SL1
DI1
Boiler Connections
Inputs Outputs
Opentherm RT ‐ PC Boiler run
Room S ‐ RT ‐ SC Boiler fault
SP ‐ HWS
DI4
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
Bn Connections
OT1
RT ‐ MC,
T ‐ HWS
DI2
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
DI2
Override
or Pump Flt
OT2 RT ‐ HC
OT1 RT ‐ MC1
S1 S ‐ RT ‐ MC1
VariCAN
Adapter B1..Bn..EMn
Override
or Pump Flt
DI4
S6 S ‐ OT ‐ MC2
Bn Connections
Inputs Outputs
OT1 RT ‐ MC VF1 P ‐ MC
S1 S ‐ RT ‐ MC VF2 V ‐ MC open
S2 S ‐ FT ‐ MC VF3 V ‐ MC close
VF6 V ‐ MC2 close
OT2 RT ‐ MC2
Override
or Pump Flt
DI2
DI1
Ext. Timer/
Enable or
Holiday
S ‐ RT ‐ MC2 S4
DI3
Ext. Timer/
Enable or
Holiday
S5 S ‐ FT ‐ MC2
S2 S ‐ FT ‐ MC1 VF3 V ‐ MC1 close
S3 S ‐ OT ‐ MC1 VF4 P ‐ MC2
VF5 V ‐ MC2 open
Bn Connections
Inputs Outputs
VF1 P ‐ MC1
VF2 V ‐ MC1 open
V ‐ MC close
S3 S ‐ OT ‐ MC1
Bn Connections
Inputs Outputs
VF1 P ‐ MC
VF2 V ‐ MC open
OT1 RT ‐ MC
VF3
S1 S ‐ RT ‐ MC
S2 S ‐ FT ‐ MC
Tank S ‐ HWS
P1 (0 ‐ 10V)
P ‐ B
or P2
B1..Bn
B1 Connections
Inputs Outputs
Ext.Timer
or
Enable
or Override
TS ‐ HWS
VariCAN
Adapter
Opentherm RT ‐ SC Boiler run
Room S ‐ RT ‐ SC Boiler fault
or P2
or Enable
or Enable
Boiler fault
Header S ‐ FT
P1 (0 ‐ 10V)
Bn Connections
Inputs Outputs
Boiler run
Boiler fault
P1 (0 ‐ 10V)
P ‐ B
or P2
Header
B1 Connections
Inputs Outputs
Opentherm
VariCAN
Adapter
B1..Bn
RT ‐ SC Boiler run
Room S ‐ RT ‐ SC Boiler fault
S ‐ FT P1 (0 ‐ 10V)
SL1
Ext.Timer P1 (0 ‐ 10V)
Outside S ‐ OT or P3
SL1
Ext.Timer P2 B ‐ V
or Enable
or Override
VariCAN
Adapter
B1..Bn
P ‐ SC
Header S ‐ FT P1 (0 ‐ 10V)
or P2
or Override
VariCAN
Adapter
Outside S ‐ OT
P ‐ B
P ‐ B
P1 (0 ‐ 10V)
P ‐ B
P ‐ B
or Override
Outside S ‐ OT
Ext.Timer
or
Enable
or P2
B1 Connections
Inputs
Opentherm RT ‐ SC
Room S ‐ RT ‐ SC
Header S ‐ FT
Outputs
Boiler run
Boiler fault
P1 (0 ‐ 10V)
SL1
Room S ‐ RT ‐ SC Boiler fault
B1 Connections
Inputs Outputs
Opentherm RT ‐ SC Boiler run
P ‐ SC
B1..Bn
or Enable
B1 Connections
Inputs Outputs
Opentherm RT ‐ SC Boiler run
Room S ‐ RT ‐ SC
or Override
P ‐ HWSC
VariCAN
Adapter
B1..Bn
Outside S ‐ OT
or P2
SL1
Ext.Timer
Tank S ‐ HWS
Outside S ‐ OT
Opentherm RT ‐ SC Boiler run
Room S ‐ RT ‐ SC
VariCAN
Adapter
B1..Bn
P ‐ PC
or P2
or Override
Tank S ‐ RT ‐ PC P1 (0 ‐ 10V)
SL1
Ext.Timer or P2
Header S ‐ FT
P3
B1 Connections
Inputs Outputs
SL2 TS ‐ HWS
Boiler fault
VariCAN
Adapter
B1..Bn
Bn Connections
Inputs Outputs
VariCAN
Adapter
B1..Bn
Boiler run
Boiler fault
P ‐ B
or P2
P1 (0 ‐ 10V)
or P2
Ext.Timer
or
Enable
Opentherm RT ‐ PC
Room S ‐ RT ‐ PC
P ‐ PC
or Override
P1 (0 ‐ 10V)
Inputs Outputs
Opentherm RT ‐ PC Boiler run
Room S ‐ RT ‐ PC Boiler fault
VariCAN
Adapter
B1..Bn
P1 (0 ‐ 10V)
P ‐ B
or P2
or Enable P1 (0 ‐ 10V)
P ‐ PC
or Override or P2
SL2 TS ‐ HWS P3 P ‐ HWSC
Tank S ‐ HWS
Ext.Timer
SL1
Bn Connections
Inputs Outputs
Opentherm RT ‐ PC Boiler run
P ‐ PC1
or Override or P2
Ext.Timer P3 P ‐ PC2
Room S ‐ RT ‐ PC1 Boiler fault
Room S ‐ RT ‐ PC2 P1 (0 ‐ 10V)
P ‐ B
SL1
Ext.Timer or P2
or Enable P1 (0 ‐ 10V)
A. KM821 ‐ I5, System Manager and TTL ‐ VariCAN adapter only
Boiler 1, Master configuration options Boiler n, Slave configuration options Extension Module configuration options
Sequence control 1 ‐ 16 boilers Sequence control 1 ‐ 16 boilers, Boiler n Extension module with 1 x Mixing circuit
S ‐ FT RT ‐ SC RT ‐ MC
S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn Bn S ‐ OT ‐ MC V ‐ MC
P ‐ MC
S ‐ FT ‐ MC
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *OT1 or RT ‐ MC
Sequence control Sequence control, Boiler n Heating circuit, Mixing
Sequence control 1 ‐ 16 boilers with Mixing header and System pump Sequence control 1 ‐ 16 boilers, Boiler n with CT Pump circuit Extension module with 2 x Mixing circuits
S ‐ FT P ‐ SC RT ‐ SC S ‐ RT ‐ PC RT ‐ PC RT ‐ MC1 RT ‐ MC2
S ‐ RT ‐ SC S ‐ RT ‐ MC1 S ‐ RT ‐ MC2
S ‐ OT B1 Bn S ‐ OT ‐ PC Bn P ‐ PC S ‐ OT ‐ MC1 V ‐ MC1 S ‐ OT ‐ MC2 V ‐ MC2
P ‐ MC1 P ‐ MC2
S ‐ FT ‐ MC1 S ‐ FT ‐ MC2
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *Opentherm or SL1
Sequence control Sequence control, Boiler n CT Pump Circuit SL1 is Heating Circuit control Heating circuit, Mixing circuit 1 Heating circuit, Mixing circuit 2
Sequence control 1 ‐ 16 boilers with Indirect Hot Water Storage Tank Sequence control 1 ‐ 16 boilers, Boiler n with CT Pump circuit and Indirect HWS circuit Extension module with 1 x Mixing circuit and 1 x CT Pumped circuit
S ‐ FT RT ‐ SC, T ‐ HWS S ‐ RT ‐ PC RT ‐ PC, T ‐ HWS RT ‐ MC S ‐ RT ‐ PC RT ‐ PC
S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn P ‐ HWSC S ‐ OT ‐ PC Bn P ‐ PC P ‐ HWSC S ‐ OT ‐ MC V ‐ MC S ‐ OT ‐ PC P ‐ PC
S ‐ FT ‐ PC
TS ‐ HWS TS ‐ HWS P ‐ MC
S ‐ HWS S ‐ HWS S ‐ FT ‐ MC
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *Opentherm or SL1
Sequence control Hot Water Storage SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit) Sequence control, Boiler n CT Pump Circuit Hot Water Storage SL1 is Heating Circuit control Heating circuit, Mixing CT Pump Circuit
SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit)
Sequence control 1 ‐ 16 boilers with a CT Pump circuit Sequence control 1 ‐ 16 boilers, Boiler n with 2 x CT Pump circuit Extension module with 1 x Mixing circuit and 1 x Air Handler circuit
S ‐ FT S ‐ RT ‐ PC RT ‐ SC S ‐ FT S ‐ RT ‐ PC1 S ‐ RT ‐ PC2 RT ‐ PCn RT ‐ MC S ‐ RT ‐ HC RT ‐ HC
S ‐ RT ‐ SC S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn P ‐ PC S ‐ OT ‐ PC Bn P ‐ PC1 P ‐ PC2 S ‐ OT ‐ MC V ‐ MC S ‐ OT ‐ HC P ‐ HC
S ‐ FT ‐ HC
P ‐ MC
AH ‐ HC
S ‐ FT ‐ MC
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *Opentherm1 or SL1, Opentherm2 or SL2
Sequence control CT Pump Circuit Sequence control, Boiler n CT Pump Circuit 1 CT Pump Circuit 2 SL1 is Heating Circuit control Heating circuit, Mixing Heater Circuit
SL2 is Heating Circuit control
Sequence control 1 ‐ 16 boilers with Common pump and optional valves Extension module with 1 x Mixing circuit and 1 x HWS circuit
S ‐ FT RT ‐ SC RT ‐ MC, T ‐ HWS
S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn S ‐ OT ‐ MC V ‐ MC PP ‐ HWS
SP ‐ HWS
P ‐ MC TS ‐ HWS
S ‐ FT ‐ MC S ‐ ST ‐ HWS
V ‐ B V ‐ B
P ‐ SC
*SL1 is Plant control
Sequence control Heating circuit, Mixing Hot Water Storage
Sequence control 1 ‐ 16 boilers, with local DHW demand Extension module with 2 x Air Handler circuit
V ‐ DHW S ‐ FT RT ‐ SC S ‐ RT ‐ HC1 RT ‐ HC1 S ‐ RT ‐ HC2 RT ‐ HC2
S ‐ RT ‐ SC S ‐ OT ‐ HC1 P ‐ HC1 S ‐ OT ‐ HC2 P ‐ HC2
S ‐ OT B1 Bn
S ‐ FT ‐ HC1 S ‐ FT ‐ HC2
TS ‐ HWS AH ‐ HC1 AH ‐ HC2
S ‐ HWS
P ‐ B P ‐ B
Heater Circuit Heater Circuit
*SL1 is Plant control
Sequence control
Extension module with 1 x CT pumped circuit and 1 x HWS circuit
Single Boiler with a CT Pump circuit and DHW tank
S ‐ RT ‐ PC RT ‐ MC, T ‐ HWS
S ‐ RT ‐ PC RT ‐ PC, T ‐ HWS
S ‐ OT ‐ PC P ‐ PC PP ‐ HWS
SP ‐ HWS
S ‐ OT P ‐ PC P ‐ HWSC
S ‐ FT ‐ PC
TS ‐ HWS
TS ‐ HWS
S ‐ ST ‐ HWS
S ‐ HWS
CT Pump Circuit Hot Water Storage
*Opentherm or SL1
Boiler CT Pump Circuit Hot Water Storage SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit)
Extension module with 1 x CT pumped circuit and 1 x HWS circuit
Single Boiler with 2 x CT Pump circuits
S ‐ RT ‐ PC1 RT ‐ PC1 S ‐ RT ‐ PC2 RT ‐ PC2
S ‐ OT ‐ HWS PP ‐ HWS1 PP ‐ HWS2
SP ‐ HWS1 SP ‐ HWS2
S ‐ OT P ‐ PC1 P ‐ PC2
TS ‐ HWS1 TS ‐ HWS2
S ‐ ST ‐ HWS1 S ‐ ST ‐ HWS2
Hot Water Storage Hot Water Storage
*Opentherm1 or SL1, Opentherm2 or SL2
Boiler CT Pump Circuit CT Pump Circuit
Extension module with Mixing control to Plate Heat Exchanger for Direct HWS
Single Boiler with CT and HWS Zone circuits
S ‐ DHW
SP ‐ HWS DHW out
S ‐ RT ‐ PC1 RT ‐ PC1, TS ‐ HWS
V ‐ MC
S ‐ OT ‐ HWS
S ‐ OT
S ‐ FT ‐ HWS
V ‐ CT V ‐ HWS S ‐ FT ‐ MC
TS ‐ HWS
TS ‐ HWS
S ‐ M ‐ HWS
S ‐ HWS
S ‐ B ‐ HWS
P ‐ SYS
*Opentherm or SL1 P ‐ MC
Boiler CT Pump Circuit Hot Water Storage SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit)
P ‐ HWS
CWS in
Single Boiler with 2 x CT Zone circuits
Direct HWS
S ‐ RT ‐ CT1 RT ‐ PC1 S ‐ RT ‐ CT2 RT ‐ PC2
Extension module with Mixing control to Plate Heat Exchanger for Direct HWS with DHW pump
S ‐ OT V ‐ CT1 V ‐ CT2
S ‐ DHW
SP ‐ HWS DHW out
V ‐ MC
S ‐ OT ‐ HWS
S ‐ FT ‐ HWS
P ‐ SYS S ‐ FT ‐ MC
TS ‐ HWS
DHW ret
P ‐ DHW
*Opentherm1 or SL1, Opentherm2 or SL2
Boiler CT Pump Circuit CT Pump Circuit S ‐ M ‐ HWS
S ‐ B ‐ HWS
P ‐ MC Alternative
DHW ret
P ‐ HWS P ‐ DHW
CWS in
Direct HWS
Extension module with Mixing control to Plate Heat Exchanger for Direct DHW with pump
V ‐ MC
S ‐ OT ‐ HWS
S ‐ FT ‐ HWS
S ‐ FT ‐ MC DHW out
DHW ret
P ‐ DHW
P ‐ MC CWS in
Direct DHW
Extension module with Primary Buffer Mixing control to Plate Heat Exchanger for Direct DHW with pump
V ‐ MC
S ‐ OT ‐ HWS
S ‐ FT ‐ HWS
S ‐ FT ‐ MC DHW out
DHW ret
S ‐ PB
P ‐ DHW
P ‐ MC CWS in
Direct DHW with Primary Buffer
VariCAN
Adapter B1..Bn..EMn
VariCAN
Adapter
B1..Bn..EMn
DI1
Ext. Timer/
Enable or
Holiday
DI3
Ext. Timer/
Enable or
Holiday
VariCAN
Adapter B1..Bn..EMn
Bn Connections
DI3
Ext. Timer/
Enable or
Holiday
VariCAN
Adapter B1..Bn..EMn
DI1 Ext. Timer
or Enable
S ‐ PB S1
Override
or Pump Flt
DI2
S ‐ ST ‐ HWS2 S4
TS ‐ HWS1 DI1
S ‐ OT ‐ HWS S3
S ‐ ST ‐ HWS1 S1
DI3 TS ‐ HWS2
DI1
Ext. Timer/
Enable or
Holiday
DI2
Override
or Pump Flt
S4 S ‐ HWS
DI3 TS ‐ HWS
DI4
Override
or Pump Flt
VF4 PP ‐ HWS
S1 S ‐ RT ‐ PC VF5 SP ‐ HWS
S2 S ‐ FT ‐ PC
OT1
RT ‐ PC,
T ‐ HWS
S3 S ‐ OT ‐ PC
DI4
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
Bn Connections
Inputs Outputs
VF1 P ‐ PC
OT2 RT ‐ HC2
S4 S ‐ RT ‐ HC2
S5 S ‐ FT ‐ HC2
S6 S ‐ OT ‐ HC2
DI3
Ext. Timer/
Enable or
Holiday
S ‐ FT ‐ HC1 VF4 P ‐ HC2
S3 S ‐ OT ‐ HC1 VF5 AH ‐ HC2
DI1
Ext. Timer/
Enable or
Holiday
DI2
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
DI3 TS ‐ HWS
Bn Connections
Inputs Outputs
OT1 RT ‐ HC1 VF1 P ‐ HC1
S1 S ‐ RT ‐ HC1 VF2 AH ‐ HC1
DI4
Override
or Pump Flt
DI2
Override
or Pump Flt
S4 S ‐ HWS
Inputs Outputs
VF1 P ‐ MC
S1 S ‐ RT ‐ MC
VF2 V ‐ MC open
S2 S ‐ FT ‐ MC
VF3 V ‐ MC close
S3 S ‐ OT ‐ MC
VF4 PP ‐ HWS
Ext. Timer/
Enable or
Holiday
VF5
S4 S ‐ RT ‐ HC
S5 S ‐ FT ‐ HC
S6 S ‐ OT ‐ HC
DI3
Ext. Timer/
Enable or
Holiday
S1 S ‐ RT ‐ MC VF2 V ‐ MC open
S2 S ‐ FT ‐ MC VF3 V ‐ MC close
S3 S ‐ OT ‐ MC VF4 P ‐ HC
DI1
Ext. Timer/
Enable or
Holiday
VF5 AH ‐ HC
DI4
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
Bn Connections
Inputs Outputs
OT1 RT ‐ MC VF1 P ‐ MC
OT2 RT ‐ PC
S4 S ‐ RT ‐ PC
S5 S ‐ FT ‐ PC
S6 S ‐ OT ‐ PC
DI3
Ext. Timer/
Enable or
Holiday
S3 S ‐ OT ‐ MC VF4 P ‐ PC
DI1
Ext. Timer/
Enable or
Holiday
DI2
Override
or Pump Flt
Opentherm2
RT ‐ PC2
Opentherm2 RT ‐ PC2
SL1
VariCAN
Adapter
B1..Bn
SL2 or Enable
or Override
Bn Connections
DI1
Ext. Timer/
Enable or
Holiday
P1 (0 ‐ 10V)
V ‐ CT1
Boiler Connections
Inputs Outputs
Opentherm1
RT ‐ PC1 Boiler run
Room S ‐ RT ‐ PC1
Room S ‐ RT ‐ CT2
or P2
SL1 RT ‐ CT1
P1 (0 ‐ 10V)
V ‐ CT1
SL2
RT ‐ CT2
or P2
P3 V ‐ CT2
Tank S ‐ RT ‐ CT2 or P2
SL1 RT ‐ CT1
P3 V ‐ HWS
SL2 TS ‐ HWS or P2
Boiler Connections
Inputs Outputs
Opentherm RT ‐ PC1 Boiler run
Room S ‐ RT ‐ PC1 Boiler fault
Outside S ‐ OT P1 (0 ‐ 10V)
P ‐ SYS
Boiler fault
Outside S ‐ OT
P1 (0 ‐ 10V)
P ‐ SYS
Room S ‐ RT ‐ PC2
Boiler Connections
Inputs Outputs
Opentherm1
RT ‐ PC1 Boiler run
Room S ‐ RT ‐ PC1
Boiler fault
Outside S ‐ OT
P1 (0 ‐ 10V)
P ‐ PC1
or P2
SL1 RT ‐ PC1
P3 P ‐ PC2
SL2 RT ‐ PC2
P ‐ HWSC
SL2
Outside S ‐ OT P1 (0 ‐ 10V)
P ‐ PC
Tank S ‐ HWS or P2
SL1 RT ‐ PC
TS ‐ HWS
P3
Bn Connections
Inputs Outputs
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
S2 S ‐ FT ‐ MC VF3 V ‐ MC close
S6 S ‐ FT ‐ DHW
S7 SP ‐ HWS
VF5 P ‐ DHW
P ‐ MC VF1
DI2
Override
or Pump Flt
DI2
Override
or Pump Flt
Inputs Outputs
S2 S ‐ FT ‐ MC VF1 P ‐ MC
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
S6 S ‐ FT ‐ DHW VF3 V ‐ MC close
S7 SP ‐ HWS VF5
VariCAN
Adapter B1..Bn..EMn
P ‐ DHW
S6 S ‐ FT ‐ DHW
S7 SP ‐ HWS
DI1 TS ‐ HWS
DI2
Override
or Pump Flt
S3 S ‐ FT ‐ HWS VF3 V ‐ MC close
S5 S ‐ B ‐ HWS VF4 P ‐ HWS
S6 S ‐ FT ‐ DHW VF5 P ‐ DHW
Inputs Outputs
S1 S ‐ M ‐ HWS VF1 P ‐ MC
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
Bn Connections
Inputs Outputs
S1 S ‐ M ‐ HWS VF1 P ‐ MC
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
DI1 TS ‐ HWS
VF3 V ‐ MC close
VF4 P ‐ HWS
DI2
Override
or Pump Flt
S7 SP ‐ HWS
S3 S ‐ FT ‐ HWS
S5 S ‐ B ‐ HWS
Bn Connections
B1..Bn..EMn
VariCAN
Adapter
Override
or Pump Flt
DI4
VF4 PP ‐ HWS2
VF5 SP ‐ HWS2
Bn Connections
Inputs Outputs
VF1 PP ‐ HWS1
VF2 SP ‐ HWS1
VariCAN
Adapter
B1..Bn..EMn
Header S ‐ FT
Outside S ‐ OT
P3 V ‐ DHW
S2
SL2
SL1
DI1
Boiler Connections
Inputs Outputs
Opentherm RT ‐ PC Boiler run
Room S ‐ RT ‐ SC Boiler fault
SP ‐ HWS
DI4
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
Bn Connections
OT1
RT ‐ MC,
T ‐ HWS
DI2
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
DI2
Override
or Pump Flt
OT2 RT ‐ HC
OT1 RT ‐ MC1
S1 S ‐ RT ‐ MC1
VariCAN
Adapter B1..Bn..EMn
Override
or Pump Flt
DI4
S6 S ‐ OT ‐ MC2
Bn Connections
Inputs Outputs
OT1 RT ‐ MC VF1 P ‐ MC
S1 S ‐ RT ‐ MC VF2 V ‐ MC open
S2 S ‐ FT ‐ MC VF3 V ‐ MC close
VF6 V ‐ MC2 close
OT2 RT ‐ MC2
Override
or Pump Flt
DI2
DI1
Ext. Timer/
Enable or
Holiday
S ‐ RT ‐ MC2 S4
DI3
Ext. Timer/
Enable or
Holiday
S5 S ‐ FT ‐ MC2
S2 S ‐ FT ‐ MC1 VF3 V ‐ MC1 close
S3 S ‐ OT ‐ MC1 VF4 P ‐ MC2
VF5 V ‐ MC2 open
Bn Connections
Inputs Outputs
VF1 P ‐ MC1
VF2 V ‐ MC1 open
V ‐ MC close
S3 S ‐ OT ‐ MC1
Bn Connections
Inputs Outputs
VF1 P ‐ MC
VF2 V ‐ MC open
OT1 RT ‐ MC
VF3
S1 S ‐ RT ‐ MC
S2 S ‐ FT ‐ MC
Tank S ‐ HWS
P1 (0 ‐ 10V)
P ‐ B
or P2
B1..Bn
B1 Connections
Inputs Outputs
Ext.Timer
or
Enable
or Override
TS ‐ HWS
VariCAN
Adapter
Opentherm RT ‐ SC Boiler run
Room S ‐ RT ‐ SC Boiler fault
or P2
or Enable
or Enable
Boiler fault
Header S ‐ FT
P1 (0 ‐ 10V)
Bn Connections
Inputs Outputs
Boiler run
Boiler fault
P1 (0 ‐ 10V)
P ‐ B
or P2
Header
B1 Connections
Inputs Outputs
Opentherm
VariCAN
Adapter
B1..Bn
RT ‐ SC Boiler run
Room S ‐ RT ‐ SC Boiler fault
S ‐ FT P1 (0 ‐ 10V)
SL1
Ext.Timer P1 (0 ‐ 10V)
Outside S ‐ OT or P3
SL1
Ext.Timer P2 B ‐ V
or Enable
or Override
VariCAN
Adapter
B1..Bn
P ‐ SC
Header S ‐ FT P1 (0 ‐ 10V)
or P2
or Override
VariCAN
Adapter
Outside S ‐ OT
P ‐ B
P ‐ B
P1 (0 ‐ 10V)
P ‐ B
P ‐ B
or Override
Outside S ‐ OT
Ext.Timer
or
Enable
or P2
B1 Connections
Inputs
Opentherm RT ‐ SC
Room S ‐ RT ‐ SC
Header S ‐ FT
Outputs
Boiler run
Boiler fault
P1 (0 ‐ 10V)
SL1
Room S ‐ RT ‐ SC Boiler fault
B1 Connections
Inputs Outputs
Opentherm RT ‐ SC Boiler run
P ‐ SC
B1..Bn
or Enable
B1 Connections
Inputs Outputs
Opentherm RT ‐ SC Boiler run
Room S ‐ RT ‐ SC
or Override
P ‐ HWSC
VariCAN
Adapter
B1..Bn
Outside S ‐ OT
or P2
SL1
Ext.Timer
Tank S ‐ HWS
Outside S ‐ OT
Opentherm RT ‐ SC Boiler run
Room S ‐ RT ‐ SC
VariCAN
Adapter
B1..Bn
P ‐ PC
or P2
or Override
Tank S ‐ RT ‐ PC P1 (0 ‐ 10V)
SL1
Ext.Timer or P2
Header S ‐ FT
P3
B1 Connections
Inputs Outputs
SL2 TS ‐ HWS
Boiler fault
VariCAN
Adapter
B1..Bn
Bn Connections
Inputs Outputs
VariCAN
Adapter
B1..Bn
Boiler run
Boiler fault
P ‐ B
or P2
P1 (0 ‐ 10V)
or P2
Ext.Timer
or
Enable
Opentherm RT ‐ PC
Room S ‐ RT ‐ PC
P ‐ PC
or Override
P1 (0 ‐ 10V)
Inputs Outputs
Opentherm RT ‐ PC Boiler run
Room S ‐ RT ‐ PC Boiler fault
VariCAN
Adapter
B1..Bn
P1 (0 ‐ 10V)
P ‐ B
or P2
or Enable P1 (0 ‐ 10V)
P ‐ PC
or Override or P2
SL2 TS ‐ HWS P3 P ‐ HWSC
Tank S ‐ HWS
Ext.Timer
SL1
Bn Connections
Inputs Outputs
Opentherm RT ‐ PC Boiler run
P ‐ PC1
or Override or P2
Ext.Timer P3 P ‐ PC2
Room S ‐ RT ‐ PC1 Boiler fault
Room S ‐ RT ‐ PC2 P1 (0 ‐ 10V)
P ‐ B
SL1
Ext.Timer or P2
or Enable P1 (0 ‐ 10V)
A. KM821 ‐ I5, System Manager and TTL ‐ VariCAN adapter only
Boiler 1, Master configuration options Boiler n, Slave configuration options Extension Module configuration options
Sequence control 1 ‐ 16 boilers Sequence control 1 ‐ 16 boilers, Boiler n Extension module with 1 x Mixing circuit
S ‐ FT RT ‐ SC RT ‐ MC
S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn Bn S ‐ OT ‐ MC V ‐ MC
P ‐ MC
S ‐ FT ‐ MC
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *OT1 or RT ‐ MC
Sequence control Sequence control, Boiler n Heating circuit, Mixing
Sequence control 1 ‐ 16 boilers with Mixing header and System pump Sequence control 1 ‐ 16 boilers, Boiler n with CT Pump circuit Extension module with 2 x Mixing circuits
S ‐ FT P ‐ SC RT ‐ SC S ‐ RT ‐ PC RT ‐ PC RT ‐ MC1 RT ‐ MC2
S ‐ RT ‐ SC S ‐ RT ‐ MC1 S ‐ RT ‐ MC2
S ‐ OT B1 Bn S ‐ OT ‐ PC Bn P ‐ PC S ‐ OT ‐ MC1 V ‐ MC1 S ‐ OT ‐ MC2 V ‐ MC2
P ‐ MC1 P ‐ MC2
S ‐ FT ‐ MC1 S ‐ FT ‐ MC2
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *Opentherm or SL1
Sequence control Sequence control, Boiler n CT Pump Circuit SL1 is Heating Circuit control Heating circuit, Mixing circuit 1 Heating circuit, Mixing circuit 2
Sequence control 1 ‐ 16 boilers with Indirect Hot Water Storage Tank Sequence control 1 ‐ 16 boilers, Boiler n with CT Pump circuit and Indirect HWS circuit Extension module with 1 x Mixing circuit and 1 x CT Pumped circuit
S ‐ FT RT ‐ SC, T ‐ HWS S ‐ RT ‐ PC RT ‐ PC, T ‐ HWS RT ‐ MC S ‐ RT ‐ PC RT ‐ PC
S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn P ‐ HWSC S ‐ OT ‐ PC Bn P ‐ PC P ‐ HWSC S ‐ OT ‐ MC V ‐ MC S ‐ OT ‐ PC P ‐ PC
S ‐ FT ‐ PC
TS ‐ HWS TS ‐ HWS P ‐ MC
S ‐ HWS S ‐ HWS S ‐ FT ‐ MC
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *Opentherm or SL1
Sequence control Hot Water Storage SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit) Sequence control, Boiler n CT Pump Circuit Hot Water Storage SL1 is Heating Circuit control Heating circuit, Mixing CT Pump Circuit
SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit)
Sequence control 1 ‐ 16 boilers with a CT Pump circuit Sequence control 1 ‐ 16 boilers, Boiler n with 2 x CT Pump circuit Extension module with 1 x Mixing circuit and 1 x Air Handler circuit
S ‐ FT S ‐ RT ‐ PC RT ‐ SC S ‐ FT S ‐ RT ‐ PC1 S ‐ RT ‐ PC2 RT ‐ PCn RT ‐ MC S ‐ RT ‐ HC RT ‐ HC
S ‐ RT ‐ SC S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn P ‐ PC S ‐ OT ‐ PC Bn P ‐ PC1 P ‐ PC2 S ‐ OT ‐ MC V ‐ MC S ‐ OT ‐ HC P ‐ HC
S ‐ FT ‐ HC
P ‐ MC
AH ‐ HC
S ‐ FT ‐ MC
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *Opentherm1 or SL1, Opentherm2 or SL2
Sequence control CT Pump Circuit Sequence control, Boiler n CT Pump Circuit 1 CT Pump Circuit 2 SL1 is Heating Circuit control Heating circuit, Mixing Heater Circuit
SL2 is Heating Circuit control
Sequence control 1 ‐ 16 boilers with Common pump and optional valves Extension module with 1 x Mixing circuit and 1 x HWS circuit
S ‐ FT RT ‐ SC RT ‐ MC, T ‐ HWS
S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn S ‐ OT ‐ MC V ‐ MC PP ‐ HWS
SP ‐ HWS
P ‐ MC TS ‐ HWS
S ‐ FT ‐ MC S ‐ ST ‐ HWS
V ‐ B V ‐ B
P ‐ SC
*SL1 is Plant control
Sequence control Heating circuit, Mixing Hot Water Storage
Sequence control 1 ‐ 16 boilers, with local DHW demand Extension module with 2 x Air Handler circuit
V ‐ DHW S ‐ FT RT ‐ SC S ‐ RT ‐ HC1 RT ‐ HC1 S ‐ RT ‐ HC2 RT ‐ HC2
S ‐ RT ‐ SC S ‐ OT ‐ HC1 P ‐ HC1 S ‐ OT ‐ HC2 P ‐ HC2
S ‐ OT B1 Bn
S ‐ FT ‐ HC1 S ‐ FT ‐ HC2
TS ‐ HWS AH ‐ HC1 AH ‐ HC2
S ‐ HWS
P ‐ B P ‐ B
Heater Circuit Heater Circuit
*SL1 is Plant control
Sequence control
Extension module with 1 x CT pumped circuit and 1 x HWS circuit
Single Boiler with a CT Pump circuit and DHW tank
S ‐ RT ‐ PC RT ‐ MC, T ‐ HWS
S ‐ RT ‐ PC RT ‐ PC, T ‐ HWS
S ‐ OT ‐ PC P ‐ PC PP ‐ HWS
SP ‐ HWS
S ‐ OT P ‐ PC P ‐ HWSC
S ‐ FT ‐ PC
TS ‐ HWS
TS ‐ HWS
S ‐ ST ‐ HWS
S ‐ HWS
CT Pump Circuit Hot Water Storage
*Opentherm or SL1
Boiler CT Pump Circuit Hot Water Storage SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit)
Extension module with 1 x CT pumped circuit and 1 x HWS circuit
Single Boiler with 2 x CT Pump circuits
S ‐ RT ‐ PC1 RT ‐ PC1 S ‐ RT ‐ PC2 RT ‐ PC2
S ‐ OT ‐ HWS PP ‐ HWS1 PP ‐ HWS2
SP ‐ HWS1 SP ‐ HWS2
S ‐ OT P ‐ PC1 P ‐ PC2
TS ‐ HWS1 TS ‐ HWS2
S ‐ ST ‐ HWS1 S ‐ ST ‐ HWS2
Hot Water Storage Hot Water Storage
*Opentherm1 or SL1, Opentherm2 or SL2
Boiler CT Pump Circuit CT Pump Circuit
Extension module with Mixing control to Plate Heat Exchanger for Direct HWS
Single Boiler with CT and HWS Zone circuits
S ‐ DHW
SP ‐ HWS DHW out
S ‐ RT ‐ PC1 RT ‐ PC1, TS ‐ HWS
V ‐ MC
S ‐ OT ‐ HWS
S ‐ OT
S ‐ FT ‐ HWS
V ‐ CT V ‐ HWS S ‐ FT ‐ MC
TS ‐ HWS
TS ‐ HWS
S ‐ M ‐ HWS
S ‐ HWS
S ‐ B ‐ HWS
P ‐ SYS
*Opentherm or SL1 P ‐ MC
Boiler CT Pump Circuit Hot Water Storage SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit)
P ‐ HWS
CWS in
Single Boiler with 2 x CT Zone circuits
Direct HWS
S ‐ RT ‐ CT1 RT ‐ PC1 S ‐ RT ‐ CT2 RT ‐ PC2
Extension module with Mixing control to Plate Heat Exchanger for Direct HWS with DHW pump
S ‐ OT V ‐ CT1 V ‐ CT2
S ‐ DHW
SP ‐ HWS DHW out
V ‐ MC
S ‐ OT ‐ HWS
S ‐ FT ‐ HWS
P ‐ SYS S ‐ FT ‐ MC
TS ‐ HWS
DHW ret
P ‐ DHW
*Opentherm1 or SL1, Opentherm2 or SL2
Boiler CT Pump Circuit CT Pump Circuit S ‐ M ‐ HWS
S ‐ B ‐ HWS
P ‐ MC Alternative
DHW ret
P ‐ HWS P ‐ DHW
CWS in
Direct HWS
Extension module with Mixing control to Plate Heat Exchanger for Direct DHW with pump
V ‐ MC
S ‐ OT ‐ HWS
S ‐ FT ‐ HWS
S ‐ FT ‐ MC DHW out
DHW ret
P ‐ DHW
P ‐ MC CWS in
Direct DHW
Extension module with Primary Buffer Mixing control to Plate Heat Exchanger for Direct DHW with pump
V ‐ MC
S ‐ OT ‐ HWS
S ‐ FT ‐ HWS
S ‐ FT ‐ MC DHW out
DHW ret
S ‐ PB
P ‐ DHW
P ‐ MC CWS in
Direct DHW with Primary Buffer
VariCAN
Adapter B1..Bn..EMn
VariCAN
Adapter
B1..Bn..EMn
DI1
Ext. Timer/
Enable or
Holiday
DI3
Ext. Timer/
Enable or
Holiday
VariCAN
Adapter B1..Bn..EMn
Bn Connections
DI3
Ext. Timer/
Enable or
Holiday
VariCAN
Adapter B1..Bn..EMn
DI1 Ext. Timer
or Enable
S ‐ PB S1
Override
or Pump Flt
DI2
S ‐ ST ‐ HWS2 S4
TS ‐ HWS1 DI1
S ‐ OT ‐ HWS S3
S ‐ ST ‐ HWS1 S1
DI3 TS ‐ HWS2
DI1
Ext. Timer/
Enable or
Holiday
DI2
Override
or Pump Flt
S4 S ‐ HWS
DI3 TS ‐ HWS
DI4
Override
or Pump Flt
VF4 PP ‐ HWS
S1 S ‐ RT ‐ PC VF5 SP ‐ HWS
S2 S ‐ FT ‐ PC
OT1
RT ‐ PC,
T ‐ HWS
S3 S ‐ OT ‐ PC
DI4
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
Bn Connections
Inputs Outputs
VF1 P ‐ PC
OT2 RT ‐ HC2
S4 S ‐ RT ‐ HC2
S5 S ‐ FT ‐ HC2
S6 S ‐ OT ‐ HC2
DI3
Ext. Timer/
Enable or
Holiday
S ‐ FT ‐ HC1 VF4 P ‐ HC2
S3 S ‐ OT ‐ HC1 VF5 AH ‐ HC2
DI1
Ext. Timer/
Enable or
Holiday
DI2
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
DI3 TS ‐ HWS
Bn Connections
Inputs Outputs
OT1 RT ‐ HC1 VF1 P ‐ HC1
S1 S ‐ RT ‐ HC1 VF2 AH ‐ HC1
DI4
Override
or Pump Flt
DI2
Override
or Pump Flt
S4 S ‐ HWS
Inputs Outputs
VF1 P ‐ MC
S1 S ‐ RT ‐ MC
VF2 V ‐ MC open
S2 S ‐ FT ‐ MC
VF3 V ‐ MC close
S3 S ‐ OT ‐ MC
VF4 PP ‐ HWS
Ext. Timer/
Enable or
Holiday
VF5
S4 S ‐ RT ‐ HC
S5 S ‐ FT ‐ HC
S6 S ‐ OT ‐ HC
DI3
Ext. Timer/
Enable or
Holiday
S1 S ‐ RT ‐ MC VF2 V ‐ MC open
S2 S ‐ FT ‐ MC VF3 V ‐ MC close
S3 S ‐ OT ‐ MC VF4 P ‐ HC
DI1
Ext. Timer/
Enable or
Holiday
VF5 AH ‐ HC
DI4
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
Bn Connections
Inputs Outputs
OT1 RT ‐ MC VF1 P ‐ MC
OT2 RT ‐ PC
S4 S ‐ RT ‐ PC
S5 S ‐ FT ‐ PC
S6 S ‐ OT ‐ PC
DI3
Ext. Timer/
Enable or
Holiday
S3 S ‐ OT ‐ MC VF4 P ‐ PC
DI1
Ext. Timer/
Enable or
Holiday
DI2
Override
or Pump Flt
Opentherm2 RT ‐ PC2
Opentherm2 RT ‐ PC2
SL1
VariCAN
Adapter
B1..Bn
SL2 or Enable
or Override
Bn Connections
DI1
Ext. Timer/
Enable or
Holiday
P1 (0 ‐ 10V)
V ‐ CT1
Boiler Connections
Inputs Outputs
Opentherm1
RT ‐ PC1 Boiler run
Room S ‐ RT ‐ PC1
Room S ‐ RT ‐ CT2
or P2
SL1 RT ‐ CT1
P1 (0 ‐ 10V)
V ‐ CT1
SL2
RT ‐ CT2
or P2
P3 V ‐ CT2
Tank S ‐ RT ‐ CT2 or P2
SL1 RT ‐ CT1
P3 V ‐ HWS
SL2 TS ‐ HWS or P2
Boiler Connections
Inputs Outputs
Opentherm RT ‐ PC1 Boiler run
Room S ‐ RT ‐ PC1 Boiler fault
Outside S ‐ OT P1 (0 ‐ 10V)
P ‐ SYS
Boiler fault
Outside S ‐ OT
P1 (0 ‐ 10V)
P ‐ SYS
Room S ‐ RT ‐ PC2
Boiler Connections
Inputs Outputs
Opentherm1 RT ‐ PC1 Boiler run
Room S ‐ RT ‐ PC1
Boiler fault
Outside S ‐ OT
P1 (0 ‐ 10V)
P ‐ PC1
or P2
SL1 RT ‐ PC1
P3 P ‐ PC2
SL2 RT ‐ PC2
P ‐ HWSC
SL2
Outside S ‐ OT P1 (0 ‐ 10V)
P ‐ PC
Tank S ‐ HWS or P2
SL1 RT ‐ PC
TS ‐ HWS
P3
Bn Connections
Inputs Outputs
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
S2 S ‐ FT ‐ MC VF3 V ‐ MC close
S6 S ‐ FT ‐ DHW
S7 SP ‐ HWS
VF5 P ‐ DHW
P ‐ MC VF1
DI2
Override
or Pump Flt
DI2
Override
or Pump Flt
Inputs Outputs
S2 S ‐ FT ‐ MC VF1 P ‐ MC
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
S6 S ‐ FT ‐ DHW VF3 V ‐ MC close
S7 SP ‐ HWS VF5
VariCAN
Adapter B1..Bn..EMn
P ‐ DHW
S6 S ‐ FT ‐ DHW
S7 SP ‐ HWS
DI1 TS ‐ HWS
DI2
Override
or Pump Flt
S3 S ‐ FT ‐ HWS VF3 V ‐ MC close
S5 S ‐ B ‐ HWS VF4 P ‐ HWS
S6 S ‐ FT ‐ DHW VF5 P ‐ DHW
Inputs Outputs
S1 S ‐ M ‐ HWS VF1 P ‐ MC
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
Bn Connections
Inputs Outputs
S1 S ‐ M ‐ HWS VF1 P ‐ MC
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
DI1 TS ‐ HWS
VF3 V ‐ MC close
VF4 P ‐ HWS
DI2
Override
or Pump Flt
S7 SP ‐ HWS
S3 S ‐ FT ‐ HWS
S5 S ‐ B ‐ HWS
Bn Connections
B1..Bn..EMn
VariCAN
Adapter
Override
or Pump Flt
DI4
VF4 PP ‐ HWS2
VF5 SP ‐ HWS2
Bn Connections
Inputs Outputs
VF1 PP ‐ HWS1
VF2 SP ‐ HWS1
VariCAN
Adapter
B1..Bn..EMn
Header S ‐ FT
Outside S ‐ OT
P3 V ‐ DHW
S2
SL2
SL1
DI1
Boiler Connections
Inputs Outputs
Opentherm RT ‐ PC Boiler run
Room S ‐ RT ‐ SC Boiler fault
SP ‐ HWS
DI4
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
Bn Connections
OT1
RT ‐ MC,
T ‐ HWS
DI2
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
DI2
Override
or Pump Flt
OT2 RT ‐ HC
OT1 RT ‐ MC1
S1 S ‐ RT ‐ MC1
VariCAN
Adapter B1..Bn..EMn
Override
or Pump Flt
DI4
S6 S ‐ OT ‐ MC2
Bn Connections
Inputs Outputs
OT1 RT ‐ MC VF1 P ‐ MC
S1 S ‐ RT ‐ MC VF2 V ‐ MC open
S2 S ‐ FT ‐ MC VF3 V ‐ MC close
VF6 V ‐ MC2 close
OT2 RT ‐ MC2
Override
or Pump Flt
DI2
DI1
Ext. Timer/
Enable or
Holiday
S ‐ RT ‐ MC2 S4
DI3
Ext. Timer/
Enable or
Holiday
S5 S ‐ FT ‐ MC2
S2 S ‐ FT ‐ MC1 VF3 V ‐ MC1 close
S3 S ‐ OT ‐ MC1 VF4 P ‐ MC2
VF5 V ‐ MC2 open
Bn Connections
Inputs Outputs
VF1 P ‐ MC1
VF2 V ‐ MC1 open
V ‐ MC close
S3 S ‐ OT ‐ MC1
Bn Connections
Inputs Outputs
VF1 P ‐ MC
VF2 V ‐ MC open
OT1 RT ‐ MC
VF3
S1 S ‐ RT ‐ MC
S2 S ‐ FT ‐ MC
Tank S ‐ HWS
P1 (0 ‐ 10V)
P ‐ B
or P2
B1..Bn
B1 Connections
Inputs Outputs
Ext.Timer
or
Enable
or Override
TS ‐ HWS
VariCAN
Adapter
Opentherm RT ‐ SC Boiler run
Room S ‐ RT ‐ SC Boiler fault
or P2
or Enable
or Enable
Boiler fault
Header S ‐ FT
P1 (0 ‐ 10V)
Bn Connections
Inputs Outputs
Boiler run
Boiler fault
P1 (0 ‐ 10V)
P ‐ B
or P2
Header
B1 Connections
Inputs Outputs
Opentherm
VariCAN
Adapter
B1..Bn
RT ‐ SC Boiler run
Room S ‐ RT ‐ SC Boiler fault
S ‐ FT P1 (0 ‐ 10V)
SL1
Ext.Timer P1 (0 ‐ 10V)
Outside S ‐ OT or P3
SL1
Ext.Timer P2 B ‐ V
or Enable
or Override
VariCAN
Adapter
B1..Bn
P ‐ SC
Header S ‐ FT P1 (0 ‐ 10V)
or P2
or Override
VariCAN
Adapter
Outside S ‐ OT
P ‐ B
P ‐ B
P1 (0 ‐ 10V)
P ‐ B
P ‐ B
or Override
Outside S ‐ OT
Ext.Timer
or
Enable
or P2
B1 Connections
Inputs
Opentherm RT ‐ SC
Room S ‐ RT ‐ SC
Header S ‐ FT
Outputs
Boiler run
Boiler fault
P1 (0 ‐ 10V)
SL1
Room S ‐ RT ‐ SC Boiler fault
B1 Connections
Inputs Outputs
Opentherm RT ‐ SC Boiler run
P ‐ SC
B1..Bn
or Enable
B1 Connections
Inputs Outputs
Opentherm RT ‐ SC Boiler run
Room S ‐ RT ‐ SC
or Override
P ‐ HWSC
VariCAN
Adapter
B1..Bn
Outside S ‐ OT
or P2
SL1
Ext.Timer
Tank S ‐ HWS
Outside S ‐ OT
Opentherm RT ‐ SC Boiler run
Room S ‐ RT ‐ SC
VariCAN
Adapter
B1..Bn
P ‐ PC
or P2
or Override
Tank S ‐ RT ‐ PC P1 (0 ‐ 10V)
SL1
Ext.Timer or P2
Header S ‐ FT
P3
B1 Connections
Inputs Outputs
SL2 TS ‐ HWS
Boiler fault
VariCAN
Adapter
B1..Bn
Bn Connections
Inputs Outputs
VariCAN
Adapter
B1..Bn
Boiler run
Boiler fault
P ‐ B
or P2
P1 (0 ‐ 10V)
or P2
Ext.Timer
or
Enable
Opentherm RT ‐ PC
Room S ‐ RT ‐ PC
P ‐ PC
or Override
P1 (0 ‐ 10V)
Inputs Outputs
Opentherm RT ‐ PC Boiler run
Room S ‐ RT ‐ PC Boiler fault
VariCAN
Adapter
B1..Bn
P1 (0 ‐ 10V)
P ‐ B
or P2
or Enable P1 (0 ‐ 10V)
P ‐ PC
or Override or P2
SL2 TS ‐ HWS P3 P ‐ HWSC
Tank S ‐ HWS
Ext.Timer
SL1
Bn Connections
Inputs Outputs
Opentherm RT ‐ PC Boiler run
P ‐ PC1
or Override or P2
Ext.Timer P3 P ‐ PC2
Room S ‐ RT ‐ PC1 Boiler fault
Room S ‐ RT ‐ PC2 P1 (0 ‐ 10V)
P ‐ B
SL1
Ext.Timer or P2
or Enable P1 (0 ‐ 10V)
A. KM821 ‐ I5, System Manager and TTL ‐ VariCAN adapter only
Boiler 1, Master configuration options Boiler n, Slave configuration options Extension Module configuration options
Sequence control 1 ‐ 16 boilers Sequence control 1 ‐ 16 boilers, Boiler n Extension module with 1 x Mixing circuit
S ‐ FT RT ‐ SC RT ‐ MC
S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn Bn S ‐ OT ‐ MC V ‐ MC
P ‐ MC
S ‐ FT ‐ MC
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *OT1 or RT ‐ MC
Sequence control Sequence control, Boiler n Heating circuit, Mixing
Sequence control 1 ‐ 16 boilers with Mixing header and System pump Sequence control 1 ‐ 16 boilers, Boiler n with CT Pump circuit Extension module with 2 x Mixing circuits
S ‐ FT P ‐ SC RT ‐ SC S ‐ RT ‐ PC RT ‐ PC RT ‐ MC1 RT ‐ MC2
S ‐ RT ‐ SC S ‐ RT ‐ MC1 S ‐ RT ‐ MC2
S ‐ OT B1 Bn S ‐ OT ‐ PC Bn P ‐ PC S ‐ OT ‐ MC1 V ‐ MC1 S ‐ OT ‐ MC2 V ‐ MC2
P ‐ MC1 P ‐ MC2
S ‐ FT ‐ MC1 S ‐ FT ‐ MC2
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *Opentherm or SL1
Sequence control Sequence control, Boiler n CT Pump Circuit SL1 is Heating Circuit control Heating circuit, Mixing circuit 1 Heating circuit, Mixing circuit 2
Sequence control 1 ‐ 16 boilers with Indirect Hot Water Storage Tank Sequence control 1 ‐ 16 boilers, Boiler n with CT Pump circuit and Indirect HWS circuit Extension module with 1 x Mixing circuit and 1 x CT Pumped circuit
S ‐ FT RT ‐ SC, T ‐ HWS S ‐ RT ‐ PC RT ‐ PC, T ‐ HWS RT ‐ MC S ‐ RT ‐ PC RT ‐ PC
S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn P ‐ HWSC S ‐ OT ‐ PC Bn P ‐ PC P ‐ HWSC S ‐ OT ‐ MC V ‐ MC S ‐ OT ‐ PC P ‐ PC
S ‐ FT ‐ PC
TS ‐ HWS TS ‐ HWS P ‐ MC
S ‐ HWS S ‐ HWS S ‐ FT ‐ MC
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *Opentherm or SL1
Sequence control Hot Water Storage SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit) Sequence control, Boiler n CT Pump Circuit Hot Water Storage SL1 is Heating Circuit control Heating circuit, Mixing CT Pump Circuit
SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit)
Sequence control 1 ‐ 16 boilers with a CT Pump circuit Sequence control 1 ‐ 16 boilers, Boiler n with 2 x CT Pump circuit Extension module with 1 x Mixing circuit and 1 x Air Handler circuit
S ‐ FT S ‐ RT ‐ PC RT ‐ SC S ‐ FT S ‐ RT ‐ PC1 S ‐ RT ‐ PC2 RT ‐ PCn RT ‐ MC S ‐ RT ‐ HC RT ‐ HC
S ‐ RT ‐ SC S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn P ‐ PC S ‐ OT ‐ PC Bn P ‐ PC1 P ‐ PC2 S ‐ OT ‐ MC V ‐ MC S ‐ OT ‐ HC P ‐ HC
S ‐ FT ‐ HC
P ‐ MC
AH ‐ HC
S ‐ FT ‐ MC
P ‐ B P ‐ B P ‐ B
*SL1 is Plant control *Opentherm1 or SL1, Opentherm2 or SL2
Sequence control CT Pump Circuit Sequence control, Boiler n CT Pump Circuit 1 CT Pump Circuit 2 SL1 is Heating Circuit control Heating circuit, Mixing Heater Circuit
SL2 is Heating Circuit control
Sequence control 1 ‐ 16 boilers with Common pump and optional valves Extension module with 1 x Mixing circuit and 1 x HWS circuit
S ‐ FT RT ‐ SC RT ‐ MC, T ‐ HWS
S ‐ RT ‐ SC S ‐ RT ‐ MC
S ‐ OT B1 Bn S ‐ OT ‐ MC V ‐ MC PP ‐ HWS
SP ‐ HWS
P ‐ MC TS ‐ HWS
S ‐ FT ‐ MC S ‐ ST ‐ HWS
V ‐ B V ‐ B
P ‐ SC
*SL1 is Plant control
Sequence control Heating circuit, Mixing Hot Water Storage
Sequence control 1 ‐ 16 boilers, with local DHW demand Extension module with 2 x Air Handler circuit
V ‐ DHW S ‐ FT RT ‐ SC S ‐ RT ‐ HC1 RT ‐ HC1 S ‐ RT ‐ HC2 RT ‐ HC2
S ‐ RT ‐ SC S ‐ OT ‐ HC1 P ‐ HC1 S ‐ OT ‐ HC2 P ‐ HC2
S ‐ OT B1 Bn
S ‐ FT ‐ HC1 S ‐ FT ‐ HC2
TS ‐ HWS AH ‐ HC1 AH ‐ HC2
S ‐ HWS
P ‐ B P ‐ B
Heater Circuit Heater Circuit
*SL1 is Plant control
Sequence control
Extension module with 1 x CT pumped circuit and 1 x HWS circuit
Single Boiler with a CT Pump circuit and DHW tank
S ‐ RT ‐ PC RT ‐ MC, T ‐ HWS
S ‐ RT ‐ PC RT ‐ PC, T ‐ HWS
S ‐ OT ‐ PC P ‐ PC PP ‐ HWS
SP ‐ HWS
S ‐ OT P ‐ PC P ‐ HWSC
S ‐ FT ‐ PC
TS ‐ HWS
TS ‐ HWS
S ‐ ST ‐ HWS
S ‐ HWS
CT Pump Circuit Hot Water Storage
*Opentherm or SL1
Boiler CT Pump Circuit Hot Water Storage SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit)
Extension module with 1 x CT pumped circuit and 1 x HWS circuit
Single Boiler with 2 x CT Pump circuits
S ‐ RT ‐ PC1 RT ‐ PC1 S ‐ RT ‐ PC2 RT ‐ PC2
S ‐ OT ‐ HWS PP ‐ HWS1 PP ‐ HWS2
SP ‐ HWS1 SP ‐ HWS2
S ‐ OT P ‐ PC1 P ‐ PC2
TS ‐ HWS1 TS ‐ HWS2
S ‐ ST ‐ HWS1 S ‐ ST ‐ HWS2
Hot Water Storage Hot Water Storage
*Opentherm1 or SL1, Opentherm2 or SL2
Boiler CT Pump Circuit CT Pump Circuit
Extension module with Mixing control to Plate Heat Exchanger for Direct HWS
Single Boiler with CT and HWS Zone circuits
S ‐ DHW
SP ‐ HWS DHW out
S ‐ RT ‐ PC1 RT ‐ PC1, TS ‐ HWS
V ‐ MC
S ‐ OT ‐ HWS
S ‐ OT
S ‐ FT ‐ HWS
V ‐ CT V ‐ HWS S ‐ FT ‐ MC
TS ‐ HWS
TS ‐ HWS
S ‐ M ‐ HWS
S ‐ HWS
S ‐ B ‐ HWS
P ‐ SYS
*Opentherm or SL1 P ‐ MC
Boiler CT Pump Circuit Hot Water Storage SL2 or (SL2 and T ‐ HWS:Opentherm DHW bit)
P ‐ HWS
CWS in
Single Boiler with 2 x CT Zone circuits
Direct HWS
S ‐ RT ‐ CT1 RT ‐ PC1 S ‐ RT ‐ CT2 RT ‐ PC2
Extension module with Mixing control to Plate Heat Exchanger for Direct HWS with DHW pump
S ‐ OT V ‐ CT1 V ‐ CT2
S ‐ DHW
SP ‐ HWS DHW out
V ‐ MC
S ‐ OT ‐ HWS
S ‐ FT ‐ HWS
P ‐ SYS S ‐ FT ‐ MC
TS ‐ HWS
DHW ret
P ‐ DHW
*Opentherm1 or SL1, Opentherm2 or SL2
Boiler CT Pump Circuit CT Pump Circuit S ‐ M ‐ HWS
S ‐ B ‐ HWS
P ‐ MC Alternative
DHW ret
P ‐ HWS P ‐ DHW
CWS in
Direct HWS
Extension module with Mixing control to Plate Heat Exchanger for Direct DHW with pump
V ‐ MC
S ‐ OT ‐ HWS
S ‐ FT ‐ HWS
S ‐ FT ‐ MC DHW out
DHW ret
P ‐ DHW
P ‐ MC CWS in
Direct DHW
Extension module with Primary Buffer Mixing control to Plate Heat Exchanger for Direct DHW with pump
V ‐ MC
S ‐ OT ‐ HWS
S ‐ FT ‐ HWS
S ‐ FT ‐ MC DHW out
DHW ret
S ‐ PB
P ‐ DHW
P ‐ MC CWS in
Direct DHW with Primary Buffer
VariCAN
Adapter B1..Bn..EMn
VariCAN
Adapter
B1..Bn..EMn
DI1
Ext. Timer/
Enable or
Holiday
DI3
Ext. Timer/
Enable or
Holiday
VariCAN
Adapter B1..Bn..EMn
Bn Connections
DI3
Ext. Timer/
Enable or
Holiday
VariCAN
Adapter B1..Bn..EMn
DI1 Ext. Timer
or Enable
S ‐ PB S1
Override
or Pump Flt
DI2
S ‐ ST ‐ HWS2 S4
TS ‐ HWS1 DI1
S ‐ OT ‐ HWS S3
S ‐ ST ‐ HWS1 S1
DI3 TS ‐ HWS2
DI1
Ext. Timer/
Enable or
Holiday
DI2
Override
or Pump Flt
S4 S ‐ HWS
DI3 TS ‐ HWS
DI4
Override
or Pump Flt
VF4 PP ‐ HWS
S1 S ‐ RT ‐ PC VF5 SP ‐ HWS
S2 S ‐ FT ‐ PC
OT1
RT ‐ PC,
T ‐ HWS
S3 S ‐ OT ‐ PC
DI4
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
Bn Connections
Inputs Outputs
VF1 P ‐ PC
OT2 RT ‐ HC2
S4 S ‐ RT ‐ HC2
S5 S ‐ FT ‐ HC2
S6 S ‐ OT ‐ HC2
DI3
Ext. Timer/
Enable or
Holiday
S ‐ FT ‐ HC1 VF4 P ‐ HC2
S3 S ‐ OT ‐ HC1 VF5 AH ‐ HC2
DI1
Ext. Timer/
Enable or
Holiday
DI2
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
DI3 TS ‐ HWS
Bn Connections
Inputs Outputs
OT1 RT ‐ HC1 VF1 P ‐ HC1
S1 S ‐ RT ‐ HC1 VF2 AH ‐ HC1
DI4
Override
or Pump Flt
DI2
Override
or Pump Flt
S4 S ‐ HWS
Inputs Outputs
VF1 P ‐ MC
S1 S ‐ RT ‐ MC
VF2 V ‐ MC open
S2 S ‐ FT ‐ MC
VF3 V ‐ MC close
S3 S ‐ OT ‐ MC
VF4 PP ‐ HWS
Ext. Timer/
Enable or
Holiday
VF5
S4 S ‐ RT ‐ HC
S5 S ‐ FT ‐ HC
S6 S ‐ OT ‐ HC
DI3
Ext. Timer/
Enable or
Holiday
S1 S ‐ RT ‐ MC VF2 V ‐ MC open
S2 S ‐ FT ‐ MC VF3 V ‐ MC close
S3 S ‐ OT ‐ MC VF4 P ‐ HC
DI1
Ext. Timer/
Enable or
Holiday
VF5 AH ‐ HC
DI4
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
Bn Connections
Inputs Outputs
OT1 RT ‐ MC VF1 P ‐ MC
OT2 RT ‐ PC
S4 S ‐ RT ‐ PC
S5 S ‐ FT ‐ PC
S6 S ‐ OT ‐ PC
DI3
Ext. Timer/
Enable or
Holiday
S3 S ‐ OT ‐ MC VF4 P ‐ PC
DI1
Ext. Timer/
Enable or
Holiday
DI2
Override
or Pump Flt
Opentherm2
RT ‐ PC2
Opentherm2
RT ‐ PC2
SL1
VariCAN
Adapter
B1..Bn
SL2 or Enable
or Override
Bn Connections
DI1
Ext. Timer/
Enable or
Holiday
P1 (0 ‐ 10V)
V ‐ CT1
Boiler Connections
Inputs Outputs
Opentherm1 RT ‐ PC1 Boiler run
Room S ‐ RT ‐ PC1
Room S ‐ RT ‐ CT2
or P2
SL1
RT ‐ CT1
P1 (0 ‐ 10V)
V ‐ CT1
SL2 RT ‐ CT2
or P2
P3 V ‐ CT2
Tank S ‐ RT ‐ CT2 or P2
SL1
RT ‐ CT1
P3 V ‐ HWS
SL2
TS ‐ HWS or P2
Boiler Connections
Inputs Outputs
Opentherm RT ‐ PC1 Boiler run
Room S ‐ RT ‐ PC1 Boiler fault
Outside S ‐ OT P1 (0 ‐ 10V)
P ‐ SYS
Boiler fault
Outside S ‐ OT
P1 (0 ‐ 10V)
P ‐ SYS
Room S ‐ RT ‐ PC2
Boiler Connections
Inputs Outputs
Opentherm1 RT ‐ PC1 Boiler run
Room S ‐ RT ‐ PC1
Boiler fault
Outside S ‐ OT
P1 (0 ‐ 10V)
P ‐ PC1
or P2
SL1 RT ‐ PC1
P3 P ‐ PC2
SL2
RT ‐ PC2
P ‐ HWSC
SL2
Outside S ‐ OT P1 (0 ‐ 10V)
P ‐ PC
Tank S ‐ HWS or P2
SL1 RT ‐ PC
TS ‐ HWS
P3
Bn Connections
Inputs Outputs
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
S2 S ‐ FT ‐ MC VF3 V ‐ MC close
S6 S ‐ FT ‐ DHW
S7 SP ‐ HWS
VF5 P ‐ DHW
P ‐ MC VF1
DI2
Override
or Pump Flt
DI2
Override
or Pump Flt
Inputs Outputs
S2 S ‐ FT ‐ MC VF1 P ‐ MC
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
S6 S ‐ FT ‐ DHW VF3 V ‐ MC close
S7 SP ‐ HWS VF5
VariCAN
Adapter B1..Bn..EMn
P ‐ DHW
S6 S ‐ FT ‐ DHW
S7 SP ‐ HWS
DI1 TS ‐ HWS
DI2
Override
or Pump Flt
S3 S ‐ FT ‐ HWS VF3 V ‐ MC close
S5 S ‐ B ‐ HWS VF4 P ‐ HWS
S6 S ‐ FT ‐ DHW VF5 P ‐ DHW
Inputs Outputs
S1 S ‐ M ‐ HWS VF1 P ‐ MC
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
Bn Connections
Inputs Outputs
S1 S ‐ M ‐ HWS VF1 P ‐ MC
S2 S ‐ FT ‐ MC VF2 V ‐ MC open
DI1 TS ‐ HWS
VF3 V ‐ MC close
VF4 P ‐ HWS
DI2
Override
or Pump Flt
S7 SP ‐ HWS
S3 S ‐ FT ‐ HWS
S5 S ‐ B ‐ HWS
Bn Connections
B1..Bn..EMn
VariCAN
Adapter
Override
or Pump Flt
DI4
VF4 PP ‐ HWS2
VF5 SP ‐ HWS2
Bn Connections
Inputs Outputs
VF1 PP ‐ HWS1
VF2 SP ‐ HWS1
VariCAN
Adapter
B1..Bn..EMn
Header S ‐ FT
Outside S ‐ OT
P3 V ‐ DHW
S2
SL2
SL1
DI1
Boiler Connections
Inputs Outputs
Opentherm RT ‐ PC Boiler run
Room S ‐ RT ‐ SC Boiler fault
SP ‐ HWS
DI4
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
Bn Connections
OT1
RT ‐ MC,
T ‐ HWS
DI2
Override
or Pump Flt
VariCAN
Adapter B1..Bn..EMn
DI2
Override
or Pump Flt
OT2 RT ‐ HC
OT1 RT ‐ MC1
S1 S ‐ RT ‐ MC1
VariCAN
Adapter B1..Bn..EMn
Override
or Pump Flt
DI4
S6 S ‐ OT ‐ MC2
Bn Connections
Inputs Outputs
OT1 RT ‐ MC VF1 P ‐ MC
S1 S ‐ RT ‐ MC VF2 V ‐ MC open
S2 S ‐ FT ‐ MC VF3 V ‐ MC close
VF6 V ‐ MC2 close
OT2 RT ‐ MC2
Override
or Pump Flt
DI2
DI1
Ext. Timer/
Enable or
Holiday
S ‐ RT ‐ MC2 S4
DI3
Ext. Timer/
Enable or
Holiday
S5 S ‐ FT ‐ MC2
S2 S ‐ FT ‐ MC1 VF3 V ‐ MC1 close
S3 S ‐ OT ‐ MC1 VF4 P ‐ MC2
VF5 V ‐ MC2 open
Bn Connections
Inputs Outputs
VF1 P ‐ MC1
VF2 V ‐ MC1 open
V ‐ MC close
S3 S ‐ OT ‐ MC1
Bn Connections
Inputs Outputs
VF1 P ‐ MC
VF2 V ‐ MC open
OT1 RT ‐ MC
VF3
S1 S ‐ RT ‐ MC
S2 S ‐ FT ‐ MC
Tank S ‐ HWS
P1 (0 ‐ 10V)
P ‐ B
or P2
B1..Bn
B1 Connections
Inputs Outputs
Ext.Timer
or
Enable
or Override
TS ‐ HWS
VariCAN
Adapter
Opentherm RT ‐ SC Boiler run
Room S ‐ RT ‐ SC Boiler fault
or P2
or Enable
or Enable
Boiler fault
Header S ‐ FT
P1 (0 ‐ 10V)
Bn Connections
Inputs Outputs
Boiler run
Boiler fault
P1 (0 ‐ 10V)
P ‐ B
or P2
Header
B1 Connections
Inputs Outputs
Opentherm
VariCAN
Adapter
B1..Bn
RT ‐ SC Boiler run
Room S ‐ RT ‐ SC Boiler fault
S ‐ FT P1 (0 ‐ 10V)
SL1
Ext.Timer P1 (0 ‐ 10V)
Outside S ‐ OT or P3
SL1
Ext.Timer P2 B ‐ V
or Enable
or Override
VariCAN
Adapter
B1..Bn
P ‐ SC
Header S ‐ FT P1 (0 ‐ 10V)
or P2
or Override
VariCAN
Adapter
Outside S ‐ OT
P ‐ B
P ‐ B
P1 (0 ‐ 10V)
P ‐ B
P ‐ B
or Override
Outside S ‐ OT
Ext.Timer
or
Enable
or P2
B1 Connections
Inputs
Opentherm RT ‐ SC
Room S ‐ RT ‐ SC
Header S ‐ FT
Outputs
Boiler run
Boiler fault
P1 (0 ‐ 10V)
SL1
Room S ‐ RT ‐ SC Boiler fault
B1 Connections
Inputs Outputs
Opentherm RT ‐ SC Boiler run
P ‐ SC
B1..Bn
or Enable
B1 Connections
Inputs Outputs
Opentherm RT ‐ SC Boiler run
Room S ‐ RT ‐ SC
or Override
P ‐ HWSC
VariCAN
Adapter
B1..Bn
Outside S ‐ OT
or P2
SL1
Ext.Timer
Tank S ‐ HWS
Outside S ‐ OT
Opentherm RT ‐ SC Boiler run
Room S ‐ RT ‐ SC
VariCAN
Adapter
B1..Bn
P ‐ PC
or P2
or Override
Tank S ‐ RT ‐ PC P1 (0 ‐ 10V)
SL1
Ext.Timer or P2
Header S ‐ FT
P3
B1 Connections
Inputs Outputs
SL2 TS ‐ HWS
Boiler fault
VariCAN
Adapter
B1..Bn
Bn Connections
Inputs Outputs
VariCAN
Adapter
B1..Bn
Boiler run
Boiler fault
P ‐ B
or P2
P1 (0 ‐ 10V)
or P2
Ext.Timer
or
Enable
Opentherm RT ‐ PC
Room S ‐ RT ‐ PC
P ‐ PC
or Override
P1 (0 ‐ 10V)
Inputs Outputs
Opentherm RT ‐ PC Boiler run
Room S ‐ RT ‐ PC Boiler fault
VariCAN
Adapter
B1..Bn
P1 (0 ‐ 10V)
P ‐ B
or P2
or Enable P1 (0 ‐ 10V)
P ‐ PC
or Override or P2
SL2 TS ‐ HWS P3 P ‐ HWSC
Tank S ‐ HWS
Ext.Timer
SL1
Bn Connections
Inputs Outputs
Opentherm RT ‐ PC Boiler run
P ‐ PC1
or Override or P2
Ext.Timer P3 P ‐ PC2
Room S ‐ RT ‐ PC1 Boiler fault
Room S ‐ RT ‐ PC2 P1 (0 ‐ 10V)
P ‐ B
SL1
Ext.Timer or P2
or Enable P1 (0 ‐ 10V)