Potterton Eurocondense Plus Installation Manual page 24

HYDRAULIC CIRCUITS (EXAMPLES)
Example 6c:
(Hydr. System "66")
B9
T
Mains
NETZ
230V AC
N, N3, K1, N4 (N7), K2
Legend:
see example 6a
Example 7:
(Hydr. System "2")
B9
T
Mains
NETZ
230V AC
N, N3, N6, K2
Legende:
B3 Tank sensor QAZ 36 *)
B6 Flow sensor QAD 36
B9 Outdoor temperature sensor QAC 34
K2 Extension module HTS 2 *)
M1 Primary loop pump *)
M3 Tank charging pump*)
24
1 CTC, 1 VTC with CIM and room control RRG and/or heating module HKM and time EMS,
including DHW tank temperature control, with primary loop.
DHW tank in the secondary loop.
1 additional mixer circuit (VTC) with ZR EC 1/2 (up to 15 circuits possible)
B3
M5
Hydraulische Weiche oder Wärmetauscher,
Header, supplied by customer
Sonderzubehör (bauseits)
M5 primary loop pump
3 CTC with room thermostats (N5.1 to N5.3) and HTS 2,
including DHW tank temperature control,
with primary loop
M3
M6 Pump CTC 1
M7 Pump CTC 2
M8 Pump CTC 3
N Control unit LMU
N3 Heating module HKM with
EMS timmer *)
Gemischtes Heizsystem
HK 1
HC 1
PHK
(CTC)
M1 (Q1)
M3
HC 1
HK 1
B3
N5.1
M6
B6
M1
Hydraulische Weiche oder Wärmetauscher,
Header, supplied by customer
Sonderzubehör (bauseits)
Separate circuit
Getrennter Heizkreis
ZR EC bzw.
EC MSR
N7
HK 2
HC 2
MHK
(VTC)
B5
B1
B1
M2
M M
Y1
Y1
Legend ZR EC or EC MSR:
see example 6a
HC 2
HK 2
N5.2
M7
N5.1 Room thermostat, heating circuit 1
N5.2 Room thermostat, heating circuit 2
N5.3 Room thermostat, heating circuit 3
N6 Temperature relay module CITF
*) optional extra
A6
M2
HC 3
HK 3
N5.3
M8