Atlantic Alfea Extensa A.I. - Page 37

gure 30 - Circulation pump control button
Circulation pump fouled or stuck:
If the motor becomes stuck, a start-up cycle is launched.
If the motor remains stuck, it will be permanently
stopped.
Pression variable
Dégazage
Pression constate
Variable pressure
Gas venting
Constant pressure
" Cut o󰀨 the power supply to the circulation pump
for 30 secs in order to free it and allow a new
start-up cycle to begin.
gure 31 - Available hydraulic pressures and ow rates (Alféa Extensa A.I. 13 & 16)
0
1
2
3
4
5
6
7
8
mCE
1 mbar=10 mmCE=100 Pa
m/h
3
1
1,5 20,50
0 0,5 1 1,5 2
m
3
/h
1
3
55
77
88
0
1
2
3
4
5
6
7
8
mCE
1 mbar=10 mmCE=100 Pa
m/h
3
1
1,5 20,50
0 0,5 1 1,5 2
m
3
/h
1
3
55
77
88
Ne pas utiliser cette zone
Variable pressure
The circulation pump varies the water
pressure depending on the ow rate.
Recommended for an installation tted with
radiators (particularly any system with
thermostatic valves or zone solenoids).
Constant pressure
The circulation pump maintains a constant
water pressure whatever the ow rate.
Recommended for an installation with
constant pressure drops such as an
underoor heating system.
Do not use these zones
Installation manual "1872 - EN" - 37 -
Alféa Extensa A.I. Heat Pump