INSTALLATION
6
11 WATER CONNECTIONS
T
E
R
RB
SV
VE
60mm
72mm
R
Solar circuit return (3/4" M). Outlet of heat trans-
fer fluid towards solar collector.
RB
Storage system return (3/4" M). Inlet of heat
transfer fluid from solar storage system.
SV
Safety valve drain
VE
Expansion tank fitting
E
Solar expansion tank (not supplied)
T
Safety valve outlet pipe (not supplied)
- Connect the return fitting (R) in the upper part of the
solar station to the solar plant
- Connect the return fitting (RB) in the lower part of the
solar station to the accumulation system
- Connect the safety valve drain to a pipe (T) to avoid
burns from expelled fluid and to permit the heat trans-
fer fluid to be recovered
- Connect expansion tank (E), suitable for solar plant
applications, to 1/2” fitting (VE).
b
Fasten expansion tank as explained in the instruction
sheet supplied with the accessory.
b
For hydraulic connections, use silicone seals having
a hardness of at least 80SH. If no seals can be used,
seal fittings with high-temperature sealant (>180°C)
suitable for solar applications.
12 PUMP CONTROLLER
The circulator is produced with maximum hydraulic head
configuration of 7,5 meter.
USER INTERFACE
The user interface consists of a push-button (1), a red/
green LED (2) and four yellow LEDs (3).
1
2
3
LED 1 LED 2 LED 3 LED 4 LED 5
When necessary, the user interface provides access to:
- Functioning (performance display) mode. Pump per-
formance is displayed during functioning as a % of
current draw with respect to rated load. Alarm condi-
tions can be seen from the colour of LED.
- Setting Mode: Press button (1) to enter setting mode
and select the type of pump curve.
FUNCTIONING MODE
Performance display
When the pump is running, LED no.1 is green. The four
yellow LEDs indicate the pump's instantaneous electrical
power consumption as shown in the table.
Nr displayed
Meaning
% power
LED 1 flashing green
Stand-by
0
LED 1 green and LED 2
yellow, both lit
Low load
0-25
LED 1 green and LEDs 2, 3
yellow, all lit
Low-medium
load
25-50
LED 1 green, LEDs 2, 3, 4
yellow, all lit
Medium-high
load
50-75
LED 1 green, LEDs 2, 3, 4,
5 yellow, all lit
High load
75-100
