E.C.A. CA 24 BB - Page 30

• Tum ON a hot tap to molce DHW mode active (fig. 260).
L30
L4~ L61V
L7ii
I DHW models oct!lle. ON OR= ON
Fall
.Ink
flg.:t6a
• A4ust any domesllc hot water femperatue be1ween 35 and 60"C with the OHW potentiometer.
n.. boller wll modulate to~ diMired temperature.
·Turn OFF the hot tap to flOP DHW mode. The appiiCI'ICe goes bclck: to the pr&lltous mode
(ftg. 26b • !lg. 26c).
flg.26b
L3(i)
L4~ L6<i1
L7l®J
I a. models oct!lle. ON
OI'F
ON ON
flg.26c
rn Frost Protection
The appiiCI'ICe Q08$ on and off automatlcatv depelldlng on ocluCII water temperatwe values
megsured by~ •nsors for pcotecHng water circuli$ against tteezlng. This ~Hon protects
boltl 01 and DHW system a. Frost protection has 2 level:
a) Ftwt [JI'Otedion level .,
• 'Nhen the applance In stand-by mode and the CH sensor rneaues a low water te~re
In 1he ayatern (le&a than 8 "C ), the pump AN. When 1t1e CH water tempercm..e goes above
10 "C (measured on the CH ~.the pump wll $top.
b) f1'o4ft pi'OI.edion level 2
·When 1t1e applance In stand-by mode and the CH sensor rnec:'IU'8a a low water tempeta!ure
In 1he system (ISS$ than 6 "C ), the boiler starts as It 1here was a CH demand. When the 01
water temperature goea aboVe 16 "C (meaaured on the CH sensol), the CH demcma W111 end
(bumer will ~off). Curing frost protectiOn~ burner will run with mlnmum capacity.
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