19
5.5 INSTRUCTIONS FOR INSTALLATION
The position of the control panel shall be selected based
on a proper location of the room sensor, embedded
in the panel; however at 1.5 m from the floor and far
from any heat/cold source (different heaters, windows,
etc). The control panel can be fixed to the wall hanging
by provided slots or recessed in the wall by means of
proper box. The wall surface shall be flat to avoid the
panel box deformation once fixed and the consequent
difficulty in coupling the cover.
After the box is fixed, remove the cable terminal From
the slot and do the cables connection; then put the
terminal back into the slot.
The communication protocol allows of 50 m maximum
cable length and Ohm resistance of each cable shall
not exceed 5 Ohm.
In case of proximity to strong electromagnetic field, it
is recommended to use shielded cable.
Fig. 10
CONNECTION OF THE PULL OUT
TERMINAL BOX
Terminal box
housing
Front panel
back
PCB
Connection
cables
Pull-out terminal screw
terminal box
FRONT PANEL ASSEMBLY
Front
Basic
Fig.9
5.4 DESCRIPTION OF ERROR CODES
Fig. 11
DIAGRAM STANDARD CYCLE
Power level
requested from
OpenTherm
(or calculated)
Exhaust
fumes (EF)
Modulator
Treated air fan
(FAN)
100%
0%
MAX speed
MAX speed
MIN speed
MIN speed
MAX current
MIN current
TP-TS current
TP -TS speed
Starter / s
First level valve (EV1)
Second level valve (EV2)
