© KWB – Kraft und Wärme aus Biomasse GmbH
IM Easyfire 10/2008
Page
177
18.2 Hydraulic diagrams
18.2 Hydraulic diagrams
Basic module with weather-sensitive control system
and boiler master-and-slave system
MBEH0009_a sheet 2/2
System description:
The system consists of boiler circuit and distributor and is de-coupled by a switch. The return flow boost is
executed via a thermal valve on at least 50 °C. The basic module for boiler / DHWC & buffer control is equipped with
a weather-sensitive control system for 2 heating circuits (option). One heating circuit is equipped with an analogue
room control unit (option), the second heating circuit is equipped with a digital room control unit (option) for remote
control. If the lower boiler temperature value of the control hystereses on the master boiler is underranged by the
“temperature differential” (5 C, adjustable), then after a “switch-on delay” (30 min., adjustable) a slave boiler will
be requested via the power output. The request comes even if the master boiler has been switched off via the
software. If the boiler temperature of the master boiler increases above the described value after the “switch-off”
delay (30 min., adjustable) the request will be cancelled.
Menu basic settings
Parameters Settings
Return flow boost
Thermal valve
Outputs
Switching on
30 min
Switch-off 30
min
Temp. differential
5 °C
Network settings
Boiler
External 2
Heat to target 2
Power output
Boiler master-and-slave
circuit
Boiler
dependence
No
Heating
circuit/
heating circuit 0
Room sensor
Boiler/0
Outdoor
sensor
Boiler
Function
No
Group
no.
0
Heating
circuit/
heating circuit 1
Room sensor
Boiler/1
Outdoor
sensor
Boiler
Function
Yes
Group
no.
0
Heating
circuit/
heating circuit 2
Room sensor
DRCU1
Outdoor
sensor
Boiler
Function
Yes
Group
no.
0
DHWC/DHWC0
Function
Yes or before
Group
no.
0
Buffer/Buffer0
Function
No
Digital remote control/
Outdoor sensor
Boiler
Digital remote control 1
Heating circuit
1 – 2
DHWC
0 – 0
Buffer
- - -
Hardware
Heating circuit modules
0
Digital remote control
1
Plug-in
modules
Off
Comment: None
Subject to change!
Tech. data sheet HYD-USP-MBEH0009_a, sheet2/2, date: 14-07-06 StHo
MA-Easyfire 10.2008_EN.indd 177
MA-Easyfire 10.2008_EN.indd 177
30.03.2009 13:32:17 Uhr
30.03.2009 13:32:17 Uhr
Содержание Easyfire
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