Technical Data - Viessmann Vitodens 100-W B1HA 26Vitodens 100-W B1HA 35Vitodens 100-W B1KA 35 Installation And Service Instructions Manual

Vitodens 100-W, B1HA series & B1KA Combi Installation/Service

Technical Data

Call for heat priority logic table
The Vitodens 100-W, B1HA /B1KA boilers has several operating control options. The following table provides the
priority levels of each of the different operating controllers.
Priority Control operating
mode
1 Freeze protection
2 OpenTherm (OT)
3 Combi (B1KA only)
4 DHW (B1HA only)
5 Outdoor temperature
2
sensor (OTS)*
6 Set point temperature
operation
1
* Boiler control will adjust the boiler water temperature set-point to the highest of all input signals.
2
* Priority #5 and #6 (outdoor temperature sensor contact) not functional when OT inputs are recognized by the boiler
control.
1
Required signal *
Boiler temperature < 41ºF (5ºC)
Open Therm (OT) signal / room
thermostat
DHW flow sensor / temp. sensor
DHW temperature sensor reading drops
below set point. Close DHW contact in
control (aquastat).
- boiler set-point temp. = 172ºF (78ºC)
(non-adjustable)
- Temperature " r" setting
w
- 96 plug terminals dual L and I jumpered.
Close lH contact in control.
96 plug terminals dual L and I jumpered.
Additional Information
Pump output Pump off delay
On 4 minutes (240 seconds)
On 20 seconds
On none
On 20 seconds
On 4 minutes (240 seconds)
On 4 minutes (240 seconds)
65