MHS Boilers Ultramax 115, Operating & Maintenance Manual, Page: 4 / 46

MHS Boilers Ltd ©
011204 4
Ultramax Technical Data.
Type 73 90 115 146 192 241 287
Nominal heat output
Nominal heat input (nett. CV)
Minimum heat input kW
kW
kW 70
74
16 86
91
20 114
121
23
139
147
29
185
194
39
230
243
49
274
289
58
Gas consumption
natural gas H (
10.9 kWh/m
3
)
propane (
12.8 kWh/kg
)
m
3
/h
kg/h
6.79
5.78 8.35
7.11 11.10
9.45
13.49
11.48 17.80
15.16 22.29
18.98 26.51
22.58
Gas inlet pressure natural gas (min.)
natural gas (max.) propane (min./max.)
mbar
mbar
mbar 17
50
30/50
17
50
30/50
17
50
30/50
17
50
30/50
17
50
30/50
17
50
30/50
17
50
30/50
Water capacity Max. working pressure
dm
3
bar
13
6
15
6
17
6
19
6
36
6
39
6
42
6
Flue connection
Air supply D
D1
mm
mm 100
100 100
100 130
125 150
125 180
150 200
180 200
180
Gas connection G R
3
⁄
4
" R
3
⁄
4
" R
3
⁄
4
" R
3
⁄
4
" R 1" R 1
1
⁄
2
" R 1
1
⁄
2
"
Water connections W R 1
1
⁄
2
" R 1
1
⁄
2
" R 1
1
⁄
2
" R 1
1
⁄
2
" R2" R2" R2"
Power supply
Frequency
Fuse V
Hz
A
240
50
10
240
50
10
240
50
10
240
50
10
240
50
10
240
50
10
240
50
10
Max. electrical power
consumption
pump (option) maximum
unit total
W
W
W 128
245
373 128
245
373 391
245
636 391
245
636 397
380
777 397
380
777 397
380
777
Boiler weight, empty, ± 5 % kg 120 140 160 180 250 270 290
Ultramax Dimensions