Gruppo Ferroli Gruppo solare IDRO 70 Manual Del Usuario página 10

Gruppo solare IDro 70
eXCluDING THe NoN-reTurN ValVe
To exclude the non-return valve in case of system emptying, turn the
knob 45°.
loCKING THe FIllING/DraINING KNoBs
Undo the screws and turn the knobs 180°.
Retighten the screws.
EN
10
"eCoTroNIC TeCH" CoNTroller INsTallaTIoN
For installation, electrical connection, operation and diagnostics, refer to
the eCoTroNIC TeCH controller manual.
NoTe: Make sure the two pump cables P1 and 256 are connected as
shown in the diagram below.
legend:
P1 Solar circulating pump
256 Modulating circulating pump signal
R Relay
F Fuse
P1
Installation of the relay will be by the customer and must meet
the minimum requirements: contact rated current >= 8A, rated voltage
250VAC, Contact material AgSnO2 or Ag/Ni 90/10.
Protection with fuse: 10/16 A, delayed or automatic fuses with charac-
teristic C.
The contacts of cable 256 must not be connected and will be suitably
protected.
Via the speed selector it is possible to set the operating strategy accord-
ing to system characteristics.
cod. 3541L140 - Rev. 01 - 11/2016
23
22
21
20
19
M Bi B N
18
17
16
256
ext. in
2
5
8
L N
F
NA NC
R
C
M B G/V
1
4
8