Ariston NEXT OUTDOOR EVO User Manual page 25

Procedure for the water flow servomotor installed
This is a series of machine which has water flow
servomotor system (water proportional valve), it has a
wider adjusting range of water flow, and it works
according to the principle as below: power on, CPU reads
the water flow and judges if the maximum thermal load of
the machine is able to reach the set temperature, if it's
negative, it will activate the servomotor to reduce water
flow to meet the temperature request of client.
If the motor disassembly is required during maintenance,
the following steps should be complied.
1. Mount the water flow servo device in the inlet
connector, cover the plate, make the locating bulge
upward, ensure the locating bulge inserts through the
corresponding hole in the cover plate.
2. Tighten the cover plate screws, then turn the handle of
the water flow servo device clockwise to tighten the
device till the end.
3. Before assembling the servo moter to the cover plate,
connect the servo moter cable with PCB, power on
and enter the PCB setting menu, select LC to reset
the motor at default angle (315°).
4. When the motor rotation is confirmed to be stopped,
unplug the electric wire. Slightly mount the motor by
aligning 2 locating bulges to the holes of cover plate of
servo-device, tighten screws.
MAINTENANCE
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