Potterton Eurocondense Plus Installation Manual page 25

HYDRAULIC CIRCUITS (EXAMPLES)
Example 9a: 1 VTC with CIM and room control RRG and/or heating module HKM and time EMS,
(Hydr. System "66") including DHW tank temperature control,
1 additional mixer circuit (VTC) with ZR EC 1/2 (up to 15 circuits possible)
Alternatively: Both VTCs with zone controller ZR EC 2
B9
T
B3
Legend:
B1 Flow sensor QAD 36 *)
B3 Tank sensor QAZ 36 *)
B5 Room control RRG *)
B9 Outdoor temperature sensor QAC 34
M2 Pump, variable temp. heating circuit *)
M3 Tank charging pump *)
Example 9b: 1 VTC with CIM and room control RRG and/or heating module HKM and time EMS,
(Hydr. System "66") including DHW tank temperature control, with primary loop,
1 additional mixer circuit (VTC) with ZR EC 1/2 (up to 15 circuits possible)
Alternatively: Both VTCs with zone controller ZR EC 2
B9
T
Legend:
see example 9a
N, N3, N4, N7, K1
M3
N Control unit LMU
N3 Heating module HKM
N4 Mixer module CIM *)
Y1 3 way valve *)
*) optional extra
1 ) alternatively: CIM or ZR EC 2 with CIB
B3
Mains
NETZ
230V AC
N, N3, N4 (N7), K1
M3
M5 Primary loop pump *)
*) optional extra
Mains
NETZ
230V AC
B1
M
Y1
Legend ZR EC:
B1
B5
1 ) K1
M2
N7
Y1
*) optional extra
B1
M
Y1
M5
Hydraulische Weiche oder Wärmetauscher,
Header, supplied by customer
Sonderzubehör (bauseits)
Legend ZR EC / EC MSR or EC M:
see example 9a
HK 2
ZR EC bzw.
HC 2 ZR EC or
EC MSR
EC MSR
(VTC) N7
MHK
A6
B5
B1
M2 M2
M
Y1
Flow sensor QAD 21 *)
Room control QAA 70 *)
Bus module CIB *)
Pump, variable temp. heating circuit
Zone control ZR EC / ZR MSR
or EC M 1 )
3 way valve *)
HK 2
HC 2
ZR EC bzw.
ZR EC or
EC MSR
EC MSR
(VTC)
N7
MHK
A6
B5
B1
M2
M2
M
Y1
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