Installation and operating instruction
Oil condensing boiler WTC-OB 18-B
7 Commissioning
83311002 1/2018-03 La
66-132
7.4 Check rating
7.4.1 Delivery status
The table shows the delivery status. The burner must be set during commissioning.
Stage 1
Stage 2
Burner capacity
(1
approx. 11.5 kW
approx. 17.5 kW
Mixing head
ME 1.17 B
Pump pressure
(2
7.5 bar
18.0 bar
Oil nozzle
0.30 80°SR Danfoss
Fan speed
(3
4400 1/min (rpm)
6700 1/min (rpm)
Mixing pressure
(4
6.9 mbar
16.5 mbar
(1
Different values are possible due to tolerances.
(2
-0.1 / +0.2 bar
(3
±50 1/min
(4
±0.5 mbar
7.4.2 Changing capacity
If required, the capacity can be altered by changing the pump pressure.
Pump pressure setting
The stages must not be operated outside the pump pressure ranges specified.
Stage 1
Stage 2
7.5 … 10.0 bar
12.0 … 18.0 bar
Burner capacity
0.30 gph
Pump pressure [bar]
kW
(1
Stage 1
7.5
11.6
8.0
12.1
9.0
12.8
10.0
13.5
Stage 2
12.0
14.7
13.0
15.3
14.0
15.9
15.0
16.4
16.0
16.9
17.0
17.3
18.0
17.8
(1
Different values are possible due to tolerances.
The capacity values were determined at a test bed, them do not correspond with
the Weishaupt slide rule.