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Vitodens 100-W, B1HE/B1KE Combi Installation/Service
Fault Messages
(continued)
Function Description
Fault Messages
(continued)
DHW Heating
Vitodens 100, type B1KE
If a DHW flow rate greater than 0.5 GPM is detected,
the boiler switches on and regulates the DHW temperature
to the target value.
Fault Messages
(continued)
Fault Messages
(continued)
Increased DHW Hygiene
The DHW can be heated to a specified (higher) target
DHW temperature (approx. 149°F (65°C) for a period of
one hour.
Function:
– If the external call for heat zone is active (contact
plug
lH
closed), the heating system is supplied with
heat:
– In weather-compensated operation – according
to the current heating curve.
– In constant operation – according to the adjusted
target supply temperature.
– If the external call for heat is inactive (contact open),
the heat supply is stopped.
No frost protection of the zone.
Vitodens 100, type B1HE
The burner, circulation pump and 3-way diverter valve
are started or changed over if the tank temperature is
2.5 K (5°F) below the target tank temperature.
The factory-set target boiler water temperature is 20 K
(36°F) higher than the target tank temperature.
If the actual tank temperature exceeds the target tank
temperature by 2.5 K (5°F), the burner shuts down and
circulation pump run-on begins.
Fault Messages
(continued)
Fault Messages
(continued)
Call for Heat
WARNING
Risk of injury due to increased DHW temperature.
Inform the system user of the risk from the raised outlet
temperature at the draw-off points. If necessary, provide
on-site scald protection measures.
WARNING
Risk of injury due to increased DHW temperature.
Inform the system user of the risk from the raised outlet
temperature at the draw-off points. If necessary, provide
on-site scald protection measures.
Tank with temperature switch (Aquastat)
The max. permissible target value of the boiler
(depending on the boiler) is taken as the target.
Function:
No demand from Aquastat – no frost protection.
Demand from Aquastat – demand for target value (no
time program for DHW and no scald protection; no
increased DHW hygiene).
Note:
The functions maximum duration of DHW heating
(factory setting = 60 minutes) and minimum
waiting time until the next DHW heating (factory
setting = 60 minutes) still apply.
See system configuration, parameter “DHW”
Gas condensing system boiler:
If the target DHW temperature is set to over 140°F
(60°C)
Gas condensing combi boiler:
If there are several draw-off events in quick
succession or several boiler calibration processes
Содержание B1HE Series
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