28
warmhaus.com
TECHNICAL DATA
UNIT
Lawa 18 /
LawaPlus 18
Lawa 24 / LawaPlus 24
Lawa 28 / LawaPlus 28
Lawa 32 /
LawaPlus 32
Gas Circuit (Supply Pressure)
(mbar)
Natural Gas
(20)
Natural
Gas (20)
Natural
Gas (13)
LPG
(37)
Natural
Gas (20)
Natural
Gas (13)
LPG
(37)
Natural Gas (20)
Gas Consumption at Maximum /
Minimum Heat Load
m³/h
2,12 / 1,11
2,535 /
0,89
2,487 /
0,93
0,967 /
0,33
3,254 /
1,09
3,134 /
1,157
1,215 /
0,455
3,41 / 1,40
Central Heating Circuit
Maximum / Minimum Nominal CH Heat Output
kW
18,33 / 9,45
23,2 / 7,1
22,8 / 7,5
21,7 / 7
28 / 10
26,9 / 10,7
28 / 10
32,5 / 12,8
Maximum Heating Effiency
%
92,0
93,9
93,9
93,77
94,06
94,06
93,68
93,36
Temperature adjustment range
°C
35 - 80
35 - 80
35 - 80
35 - 80
35 - 80
35 - 80
35 - 80
35 - 80
Maximum / Minimum operating pressure
bar
3 / 0,3
3 / 0,3
3 / 0,3
3 / 0,3
Expansion tank useful volume
litre
8
8
8
8
10
10
10
10
Pump Pressure (at 1000 l/h)
mH2O
4,8
4,8
4,8
4,8
5,2
5,2
5,2
5,2
Domestic Hot Water Circuit
Maximum / Minimum Domestic Hot Water Heat
Output
kW
22,5 / 8,7
23,2 / 7,1
22,8 / 7,5
21,74 / 7
28 / 10
26,9 / 10,7
28 / 10
32,5 / 12,8
Max. Domestic Hot Water flow rate (
Δ
t: 30 °C)
l/min.
10,5
10,9
10,7
10,9
13,9
13,3
13,9
14,2
Maximum / Minimum water pressure
bar
10 / 0,3
10 / 0,3
10 / 0,3
10 / 0,3
Temperature adjustment range
oC
35 - 60
35 - 60
35 - 60
35 - 60
Electricity Circuit
Electricity Supply
V AC –
50 Hz
230 V +%10; -%15
Electricity Consumption
Watt
123
121
136
136
Protection Index
IP
X5D
Exhaust Gas Circuit
Nominal / Minimal Exhaust Gas Temperature (DHW
& CH)
ºC
122 / 105
124 / 96
122 / 102
112 / 89
108 / 85
104 / 90
110 / 88
114 / 110
Overheat Combustion Products Temperature (DHW
& CH)
ºC
140
140
140
135
135
135
135
135
NOx
Class
3
3
2
2
General
Maximum/Minimum Ambient Temperature
ºC
+10 / +48
+10 / +48
+10 / +48
+10 /
+48
+10 / +48
+10 / +48
+10 /
+48
+10 / +48
Hydraulic Group Material
Material
Brass
Brass
Brass
Brass
Dimensions (H x W X D)
mm
725 x 420 x
288
725 x 420 x 288
725 x 420 x 380
725 x 420 x 380
Net Device Weight / Packed Device Weight
kg
29,3 / 32,5
29,3 / 32,5
34,5 / 37,2
34,5
Type
C12, C32, C42, C52, C82, B22, B32,
Category
I2H (G20 = 20 mbar)- I2H (G20 = 13 mbar)- I3P (G31 = 37 mbar)
Maximum Flue Range (Horizontal / Vertical)*
m
5 / 6
5 / 6
5 / 6
5 / 6
Notes: * In a maximum flue range, for every 90° bend; it should be reduced by 1 m and 0.5 m for each 45° bend. ** Natural Gas : Hu= 9,59 kWh/m3)
