KWB Easyfire - Basic Module with Weather-Sensitive Control System, Expansion Module and Buffer as Long-Term Buffer

© KWB – Kraft und Wärme aus Biomasse GmbH IM Easyfire 10/2008 Page 179
18.2 Hydraulic diagrams
18.2 Hydraulic diagrams
Basic module with weather-sensitive control system,
expansion module and buffer as long-term buffer
System description:
The hydr. system consists of the boiler circuit, the buffer switched as long-term buffer (VAR 2), and the distributor.
The return flow boost is executed via a thermal mixing valve (28) on at least 55 °C. The base module for DHWC
& buffer control is equipped with a weather-sensitive control system for 2 heating circuits (option), and is combined
with a bus-capable heating circuit expansion module (25). Two heating circuits are equipped with analogue room
control units (option), the other two heating circuits are equipped with digital room control units (option) for remote
control.
Basic settings menu
Parameter Settings
Return flow boost Thermal valve
Network settings Boiler External 2 Heat to target 2
Power output Heating mode
Heating circuit /
heating circuit 0 Room sensor Boiler / 0
Outdoor sensor Boiler
Function No
Group no. 0
Heating circuit /
heating circuit 1 Room sensor DRCU 1
Outdoor sensor Boiler
Function Yes
Group no. 0
Heating circuit /
heating circuit 2 Room sensor Boiler / 2
Outdoor sensor Boiler
Function Yes
Group no. 0
Heating circuit /
heating circuit 3 Room sensor DRCU 2
Outdoor sensor Boiler
Function Yes
Group no. 0
Heating circuit /
heating circuit 4 Room sensor HCM 1 / 1
Outdoor sensor Boiler
Function Yes
Group no. 0
DHWC / DHWC 0 Function Yes or No
Group no. 0
DHWC / DHWC 1 Function No
Group no. 0
Buffer / buffer 0 Function VAR 2
Buffer / buffer 1 Function No
Digital remote control / Outdoor sensor Boiler
Digital remote control 1 Heating circuit 1 - 2 or 1 - 4
DHWC 0 - 0
Buffer 0 - 0
Digital remote control / Outdoor sensor Boiler
Digital remote control 2 Heating circuit 3 - 4 or 1 - 4
DHWC 0 - 0
Buffer - - -
Hardware Heating circuit modules 1
Digital remote control 2
Plug-in modules Off
Comments: None Subject to change!
Tech. data sheet HYD-USP-MBEH0010_b, sheet 2/2, date: 12-02-07 StHo
MA-Easyfire 10.2008_EN.indd 179MA-Easyfire 10.2008_EN.indd 179 30.03.2009 13:32:18 Uhr30.03.2009 13:32:18 Uhr