Viessmann KOB PYROMAT DYN 45 Instructions For Assembly And Installation page 33

Controller for Air Heater
The boiler storage system supplies the air heaters with maximum flow temperature. The fans are
switched by switches or controllers provided by the customer. The flow rate for the heating water is
controlled by the return flow temperature and so adjusted to the heat output of the air heater
(quantity control). This produces optimum storage stratification for a long time and at a high
temperature at the accumulator flow pipe. The heating times (day and week program) can be
adjusted via the integrated timer.
Scope of delivery:
- Pushbutton for air handling unit group
Controller output for pump (1) and mixing valve (2)
-
- Return flow sensor QAD 21, uninstalled
Baffle bypass
-
Controller for Domestic Water Heater B1
If the utility water temperature drops then this is re-heated by the boiler or the heat storage via the
integrated heat exchanger. An appropriate temperature differential (selectable between differential
temperature or fixed preset temperature) is a prerequisite.
The heating times (day and week program) can be adjusted via the integrated timer.
Scope of delivery:
Pushbutton for domestic water heater
-
- Controller output for pump (1) and shut-off valve (2)
- Domestic water sensor QAZ 21.5220 with dipping shell, ½" x 200 mm, uninstalled
Controller for Domestic Water Heater B2
If the utility water temperature drops then this is re-heated by the boiler or the heat storage via the
integrated heat exchanger. An appropriate temperature differential (selectable between differential
temperature or fixed preset temperature) is a prerequisite.
The hot water flow rate is controlled by the return temperature (flow control). This produces optimum
storage stratification for a long time and at a high temperature at the accumulator flow pipe.
The heating times (day and week program) can be adjusted via the integrated timer.
Scope of delivery:
- Pushbutton for domestic water heater
Controller output for pump (1) and control valve (2)
-
Return flow sensor QAD 21, uninstalled
-
- Domestic water sensor QAZ 21.5220 with dipping shell ½" x 200 mm, uninstalled
Controller for Domestic Water Circulation System [Art. No. ECO-BZ / 7387849]
An integrated timer can be used to set the circulation periods (daily and weekly schedules).
The duration for the circulation pump to be switched on can be adjusted using a cyclical switching
system.
Scope of delivery:
Pushbutton for circulation system
-
Controller output for pump (1)
-
Köb Holzheizsysteme GmbH, Flotzbachstr. 33, A-6922 Wolfurt, Tel. +43/5574/6770-0, Fax 65707, E-Mail: office@kob.cc
Spec Sheet
ECOTRONIC - Heating Control Unit
Heat Consumers
[Art.-No. ECO-L / 7387825]
[Art. No. ECO-B1 / 7387853]
[Art. No. ECO-B2 / 7379400]
Subject to technical changes
4040-2
2009-03-01_GB