OPERATION
Menu structure
22 | LWZ304-404 SOL www.stiebel-eltron.com
Menu item/parameter Options Direct Unit Dis-
play
only
Min. Max. Standard
LWZ 304 SOL
[ L W Z 4 0 4 S O L ]
Energy sav-
ing recom-
mendation
System
value
FLOW PROPORTION HC1 19 0 100 30
MAX. SET VALUE HC1 °C 10 65 50
MIN. SET VALUE HC1 °C 0 40 10
HEATING CURVE HC1 X
HEATING CURVE HC2
GRADIENT HC2
16
0
5
0.4
0.2 for under-
floor heating
system
LOW END HC2 17 °C 0 20 3 5
ROOM INFLUENCE HC2 18 0 100 0
MAX. SET VALUE HC2 °C 10 65 45
MIN. SET VALUE HC2 °C 0 40 10
HEATING CURVE HC2 X
STANDARD SETTING
INTEGRAL COMPONENT Kmin 1 999 100
MAX BOOSTER STG HTG 31 0 3 3
MAX FLOW TEMP HTG. °C 10 75 55
SUMMER MODE 49 °C 10 25 17 13
HYST. SUMMER MODE 50 K 1 7 4 3
OUTSIDE T ADJUSTMENT 77 h 0 24 1
DUAL-MODE POINT 78 °C -10 10 -2
BOOSTER TIMEOUT 79 min 0 60 20 40
OUTSIDE T CORRECTION 86 °C -20 30 0
SUPPR TEMP MEAS 58 s 0 120 60 120
HYSTERESES
HYSTERESIS 1 P21 K 0 10 4
HYSTERESIS 2 P22 K 0 10 3
HYSTERESIS 3 P23 K 0 5 3
HYSTERESIS 4 P24 K 0 5 2
HYSTERESIS 5 P25 K 0 5 2
ASSYMMETRY OF HYST. P29 1 5 2
DHW
DHW TEMPERATURES
DHW SET DAY 04 °C 10 65 45
DHW SET NIGHT 05 °C 10 65 45
DHW SET STANDBY 06 °C 10 65 10
DHW SET MANUAL 11 °C 10 65 45
DHW TEMPERATURE °C X - - -
STANDARD SETTING
HYSTERESIS 32 K 2 10 2
BOOSTER TIMEOUT 33 min 0 360 90
BOOSTER T ACTIVATE 34 °C -20 10 -10
PASTEURISATION 35 d 1 30 30
MAX DHW HTG DUR. 36 h 6 12 12
PASTEURISATION TEMP. °C 10 65 10
PASTEURISATION TIME 00:00 23:45 02:00
DHW BOOSTER STAGE 0 3 3
DHW BUFFER MODE OFF| ON 84 OFF ON OFF
MAX FLOW TEMP DHW °C 10 75 75
DHW ECO OFF| ON 89 OFF ON ON
VENTILATION
VENTILATION STAGES
DAY STAGE 07 0 3 2 ( Delivered
condition: 0 )
NIGHT STAGE 08 0 3 1 ( Delivered
condition: 0 )
STANDBY STAGE 09 0 3 0 ( Delivered
condition: 0 )
PARTY STAGE 0 3 3 ( Delivered
condition: 0 )
MANUAL STAGE 12 0 3 2 ( Delivered
condition: 0 )
TIME
UNSCHED. VENT TIME STAGE 0 46 min 0 1000 60
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