Unical ALKON 50 kW - Page 43

43
Instructions for the installer
F Ric.
C
VF
VF
SPF
1
2
n
4
VF
VF
VF
AF
M
R
G
M R
G
< 1 m
KF
Boiler
sensor
Filter
Heating Circuit 1
Heating Circuit 2
Mixing Header
Safety devices kit
Expansion
vessel
(optional)
Outside
Sensor
Expansion
vessel
(optional)
Connection of severa ALKON 50 o 70
123
4
Y1
123
4
Y1
ALKON 50/1
ALKON 50/2
ALKON 50/3
The E8 regulator (OPTIONAL) will recognise automatically
the number of boilers connected and their output .
For the connection of several ALKON 90 (Max
8 boilers) it is necessary to change some
parameters of prearrangement (see table
Regulator E8 on page 6:
TIPE CR1 from ‘’2’’ to ‘’6’’
CR1 BUS prearranged ‘’03’’
Attention!
Respect the polarity: BUS - / BUS -
BUS + / BUS +
Set the E8 in cascade System (see Input of the basic
setting , parameter list cascade)
Set the parameter SC in the ALKON 50:
1
st
master ((sc = 00), 2
nd
slave (sc = 01),
3
rd
slave (sc = 02), 4
th
slave (sc = 03)
Connections on to the MASTER controller
The connections of the secondary circuit have to be done on
to the MASTER controller.
n
(5) Re-circulation pump storage tank
(4) Collector pump
(1) Flow sensor heating circuit 1
V
F
10
I
(10) Ground outdoor sensor
(9-10) outdoor sensor
(4-5) Flow sensor heating circuit 2
(6-7) Storage tank sensor
(4) Pump heating circuit 1
(5) Pump heating circuit 2
(6) Cylinder charging pump
SPF
AF
V
F
(7) Mixer motor heating circuit 2 OPEN
(8) Mixer motor heating circuit 2 CLOSE
(1) Mixer motor heating circuit 1 OPEN
(2) Mixer motor heating circuit 1CLOSE
INSTALLATION OF A BOILER WITH CONNECTION TO TWO MIXED ZONES + D.H.W. PRODUCTION
The electrical connection of several ALKON 50 in cascade
must be done in parallel between the terminals 3 of Y1
(ALKON 50 or 70 / 1) e 3 of Y1 (ALKON 50 or 70 / 2) ....etc;
from 4 of Y1 (ALKON 50 or 70 / 1) al 4 di Y1 (ALKON 50 or 70
/ 2) ....etc, of the PCBs .