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Vitodens 100-W, B1HE/B1KE Combi Installation/Service
Service
Checking the Neutralizing System
(if installed)
Checking the Flow Limiter
(only for gas condensing combi boiler)
1. Remove the control unit.
Remove the burner.
Drain the boiler on the DHW side.
2.
Remove the spring clip.
On a B1KE-199 boiler, undo the G 3/4” union nut
at the cold water inlet and the union nut on the
upper side of the flow sensor. Pull the pipe out.
3. Remove the DHW flow sensor.
4. Check flow limiter
A
and filter sieve
B
. Replace in
case of excessive scaling or damage. Reinsert.
5. Install the DHW flow sensor with new gaskets in
the reverse order 18 lb.ft (24 Nm) torque for the
union
nuts.
WARNING
Risk of electric shock from escaping heating
water or DHW.
Check all water side connections for tightness.
Flow limiter
Output
Flow rate
Color
B1KE 120
3.7 GPM
14
L/min
pink
B1KE 199
5.3 GPM
20
L/min
green
B1KE 120
B1KE 199
