26
HYDRAULIC CIRCUITS (EXAMPLES)
M3
T
B3
T
B9
A6
M
M2
A6
T
B1
Y1
T
B10
1)
1)
M1
zu weiteren
Heizkreisen mit
ZR EC 1/2
bzw. EC MSR
B70
Hydraulische Weiche,
Sonderzubeh
ö
r
(bauseits)
Hinweis
: Bei Anlagen ohne hydraulischer Weiche
entf
ä
llt der R
ü
cklauff
ü
hler B 70
NETZ
230V AC
NETZ
230V AC
M5
T
N7
NETZ
230V AC
M
2)
N, N8, K1, N7
N, K1, N7
M
2)
SGB 2 (Nr. 1)
SGB 2 (Nr. 2)
Legend:
A6
Room control QAA 70 or QAA 50
B1
Flow sensor QAD 21
B3
Tank sensor QAZ 21
B9
Outdoor temp. sensor QAC 31
B10 Flow sensor QAD 21
B70 Return sensor QAD 21
K1
Bus module CIB
Example
11
:
Boiler cascade with 2 EUROCONDENSE PLUS and BCA 2: 1 CTC and 1 VTC
(Hydr. System
“
80
”
)
(up to 15 circuits possible) including DHW tank temperature control (via BCA 2)
M
Boiler pump (exit M1 of
individual boiler
M1 Pump, CTC of the BCA or
primary loop pump
1)
M2 Pump VTC
M3 Tank charging pump
N
Control unit LMU
N7
EC M / EC ZR 1/2 EC MSR
for mixer circuits
N8
EC BCA
Y1
3 way valve *)
1) M1 or M5, before or behind the tank,
see param. 99 of BCA 2 for details
Mains
Mains
to other circuits
with ZR EC 1/2
or
EC MSR
Note:
In applications without primary loop,
return sensor B70 is not used.
Mains
Header
Boiler 1
Boiler 2
Содержание EC Plus 120
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