Technical data

Installation, user and maintenance manual – AY Condensing line, AY series
47
Locate, on the appliance’s controller (SCH), jumper "J2" on the S70 (bottom right, 1.
below the "NO Contact" contacts) and make sure that it is set as shown in detail
"A" (jumper closed) of the gure.
On completion, restore the appliance to its fully assembled condition.2.
Figure 5.5 – Direct control of independent circulator
Example of "circulator-appliance" electrical connection with single-phase circulator (230 V AC), power less than 700 W.
LEGEND
SCH controller (AY10+S70)
NO contact system water circula-
tor control terminals
(voltage free NO con-
tact, maximum power
absorption 700 W)
J2 system water circulator control
jumper
A detail of "closed" jumper
MC 230 V AC power terminal block
PW system water circulator (230 V AC;
<700 W)
If the circulator’s power is equal to or greater than 700 W, the installation techni-
cian must make the following modications (see gure):
(point 3) <<... make the connections as shown in the example, and install a NO •
contact circulator control relay>>. Then:
(point 4) <<Locate and open jumper J2 as shown in detail A (jumper open) in •
the next gure 5.6 Direct control of shared circulator → 49>>.
Fit the relay inside the external electrical panel provided by the installation
technician.
The insertion of relays or other electrical components inside the General Electrical Pa-
nel of the appliance is not permitted. Do not activate the appliance if the hydraulic
plant has not been lled.
> IF THE PRIMARY WATER CIRCULATOR CONTROL IS NOT TO BE HANDLED BY THE
APPLIANCE BUT RATHER BY AN EXTERNAL DEVICE:
the electrical system installation technician must make the electrical connection •
in such a way that, after the appliance is switched o, the circulator remains in
operation for at least another 3 minutes.
The electrical parts required for the connection (relay, fuses, motor thermal switches,
power switches, etc.) must be installed inside the external panel provided by the
technician.
The insertion of relays or other electrical components inside the General Electrical Pa-
nel of the appliance is not permitted. Do not activate the appliance if the hydraulic
plant has not been lled.