71
4.1
RVA 43.222 UNIT
(optional) (fig. 12)
The control panel allows the use of a
RVA 43.222 unit (cod. 8096303) sup-
plied in kit form upon request, com-
plete with mounting instructions (fig.
12).
Make t he electr ic connection as
shown in point 2.7.
4.4 DISASSEMBLY
OF OUTER CASING (fig. 14)
The shell can be completely disassem-
bled for an easy maintenance of the
boiler by following the numeric steps
shown in fig. 14.
4.5
DISASSEMBLY
OF EXPANSION VESSEL
The heating expansion tank is disas-
4
USE AND MAINTENANCE
Fig. 12
REMOVE
3.3
Pump high efficiency diagnose and remedy (fig. 11/a)
Fig. 11/a
LED diagnose and remedy
Led color
Continuous green
Meaning
Normal running
Diagnostic
Pump run as expec-
ted or is faced to a
phenomenon that
shortly affects its
running
Cause
Normal operation
Remedy
Red/green blinking
Abnormal situation
(pump functional
but stopped)
Pump will restart
by itself after the
abnormal situation
disappeared
1. Undervoltage or
Overvoltage:
U<160V or U> 253V
2. Module overvoltage:
T° inside motor too high
1. Check voltage supply:
195V<U<253V
2. Check water & ambient
T°
Red blinking
Stopped (e.g. pump
blocked)
Reset the pump
Check LED signal
Pump cannot restart itself
due to a permanent failure
Change pump
No LED
No power supply
No voltage
on electronics
1) Pump is not connected
to power supply
2) LED is damaged
3) Electronics are damaged
1) Check cable connection
2) Check if pump is runnning
3) Change pump
Summary of Contents for 35
Page 79: ......
