Wolf MUS 85 Technical Manual And Installation Instructions page 10

Fill water
Burner connection
Minimum boiler output
Type
Output range kW
Min. boiler output
kW
burner stage 1
10
Fill water / burner connection
Water guidelines for heating systems in accordance with VDI 2035 at operating
temperatures up to 100 °C:
Total of rated
Group
boiler output Q
0
100 < Q ≤ 350
1
350 < Q ≤1000
2
*) for exceptions see VDI 2035
(+) may be required, see VDI 2035
Water guidelines for heating systems in accordance with VdTÜV guidelines at
operating temperatures above 100 °C:
Filling and
top-up water
Residual hardness
mval/kg
<0.03
Observe the TRD 411 (oil combustion) and TRD 412 (gas combustion) guidelines.
The gas installation and operation of heating systems must comply with the DVGW
Code of Practice "Gas" and the technical connection conditions of your gas supply
company and/all local regulations.
Burner size
connection
Match the door insulation to the blast tube diameter of the burner.
The blast tube must protrude into the combustion chamber at least 25 mm beyond the
door installation.
Use fixing screws for the burner flange, which cannot the inserted into the boiler
door more than 15 mm.
Connect the ventilation fitting at the sight glass with the burner fitting.
After the control unit installation, plug the burner cable into the burner.
Ensure that the combustion output matches the rated boiler output.
Observe the details provided by the burner supplier.
To prevent the system falling below the dewpoint, the following minimum boiler output
for two-stage burners are required for the first stage:
85 100 140
70-100 85-120 110-160
51 60 84
Filling and top-up
water
Total alkaline
kW
earths in mol/m³
Q ≤ 100
-*)
1 to 3
1 to 2
p value
mval/kg
0.5-1.5
MKS-85-140 Acc. to EN 226 adjustable to burner size
MKS-190 - Burner plate in acc. with blast tube dia.
MKS-500 cut-out and tap thread.
MKS
190 250 340
160-230 200-300 280-380
114 150 204
Heating water
pH value Diamide
Excess in mg/kg
- -
8 to 9.5 -
8 to 9.5 2 to 5(+)
Circulating water
Diamide
pH value
Excess in mg/kg
8.5-10.0 0.5-25
420 500 85
360-460 420-550 70-85
252 300 51
Na SO
2 3
-
-
5 to 20(+)
Na SO
2 3
10-40
MUS
100
85-100
60