18
www.blaubergventilatoren.de
KOMFORT EC LW
Table 10. Controller parameters (continued)
Function
Indication
5
Alarms
E1:
outdoor air temperature sensor breakout or short circuit. The fans stop.
E2:
exhaust air temperature sensor breakout or short circuit. The fans stop.
E3:
return heat medium temperature sensor breakout or short circuit. The fans stop.
E4:
breakout or short circuit of the temperature sensor for the water heater freezing protection. The fans stop.
E5
: breakout or short circuit of the supply air temperature sensor. The fans stop.
F1:
heat exchanger freezing. The exhaust air temperature downstream of the heat exchanger measured by the
TE2
temperature sensor is below the 0 0C
set point within the 10 min time period when the fans are turned on. The bypass damper is completely opened. The fans continue operating.
O1:
emergency system shutdown on signal from the fire alarm panel. The fans stop.
O2:
filter clogging. The fans stop.
P1:
supply fan failure. The fans stop.
P2:
exhaust fan failure. The fans stop.
U1:
heater freezing danger. The alarm is generated if the air temperature downstream of the water heater falls down below +3 °C.
U2:
low return heat medium temperature. The alarm is generated if the return heat medium temperature falls down below the set critical point. In case of
any of the above freezing dangers the fans stop, the heat medium regulating valve is completely opened and the circulating pump is starts. The fans may
not be started in case of any of these freezing dangers. The system restart is possible only after removal of the water freezing danger, i.e. after removal of
the
U2
alarm, i.e. after rising of the return heat medium temperature
TE3
or after removal of the
U1
alarm, after rising of the air temperature downstream
of the heater above set point to prevent the water heater freezing.
U3:
appears if return heat medium temperature at the end of the water heater warming-up cycle in Winter mode before the fans start does not exceed
+40 °C (factory setting). The fan start is disabled in case of this alarm.
U4:
pump failure. No signal from the fluid pressure switch in the water heater after the signal to activate the circulating pump. This alarm causes the
hydronic coil heater pump shutdown. The fan operation status does not change. In case of the alarm the fans keep operating if they were turned on before
the pump failure.
6
Settings
Password:
password is part of Configuration Menu. 2222 by default.
•
The password consists of 4 digits and is displayed as ****.
•
Then use the
and
buttons to enter the first password digit and
press Enter. Enter the second number with the buttons
and
,
then press Enter etc.
•
Press Esc to get back to the previous digit.
•
Upon entering the 4th digit of the correct password the display shows
the
Settings menu
automatically.
Help line
Help line
Online temp-res
Outside
temperature (TE1)
Temperature
aft.exhc.(TE2)
Temperature
of return
heat exch. (TE3)
Heater
temperature (TE4)
Intake
temperature (TE5)
5.0
0
C
5.0
0
C
50.0
0
C
50.0
0
C
5.0
0
C
Help line
SYSTEM STATUS
Heater
Heat exch.
Pump
Cooler
Winter/Summer
0
100
Off
Off
Summer
Temp. setpoints
T.ret.w.heat.:
T.ret.w.min.:
T.seas.ch.
T.ret.w.spoint:
T.w.heat. min.:
T.h.exch.ch.:
T.h.exch.min.:
T.cool.min.:
40
0
C
5
0
C
0
0
C
20
0
C
3
0
C
0
0
C
-5
0
C
20
0
C
Settings
-> Settings
Heater
Cooler
Pump
Fan
Heat exchanger
-> Heater settings
Settings
Heater
Cooler
Pump
Fan
Heat exchanger
-> Cooler settings
Settings
Heater
Cooler
Pump
Fan
Heat exchanger
-> Pump settings
Settings
Heater
Cooler
Pump
Fan
Heat exchanger
-> Fan
Settings
Heater
Cooler
Pump
Fan
Heat exchanger
-> Heat exch.sett.
Cooler settings
Heater settings
Contol law
Protection
-> Control law
Control law
Protection
Supply air:
G 2.00
T 60
Dead zone: 0.5
Ret.w.t. control:
G 2.00
T 60
Dead zone: 0.5
Heating time:
180 s
Heat exch.sett.
F1 Fault delay: 600
Supply air control law:
G 1.00
T 100
Dead zone: 0.5
Exhaust air control law :
G 1.00
T 100
Dead zone: 0.5
Cooler delay on: 600 s
Pump settings
Min.work.time:
20 s
Summer mode:
Enable
Fan
P1, P2 Fault delay: 30 s
VUT-...-WH
Password
Settings menu.
This menu contains basic controller settings.
Editing the Settings menu must be performed by professionals only, otherwise
it may cause controller failure or breakdown.
Help line
Help line
Online temp-res
Outside
temperature (TE1)
Temperature
aft.exhc.(TE2)
Temperature
of return
heat exch. (TE3)
Heater
temperature (TE4)
Intake
temperature (TE5)
5.0
0
C
5.0
0
C
50.0
0
C
50.0
0
C
5.0
0
C
Help line
SYSTEM STATUS
Heater
Heat exch.
Pump
Cooler
Winter/Summer
0
100
Off
Off
Summer
Temp. setpoints
T.ret.w.heat.:
T.ret.w.min.:
T.seas.ch.
T.ret.w.spoint:
T.w.heat. min.:
T.h.exch.ch.:
T.h.exch.min.:
T.cool.min.:
40
0
C
5
0
C
0
0
C
20
0
C
3
0
C
0
0
C
-5
0
C
20
0
C
Settings
-> Settings
Heater
Cooler
Pump
Fan
Heat exchanger
-> Heater settings
Settings
Heater
Cooler
Pump
Fan
Heat exchanger
-> Cooler settings
Settings
Heater
Cooler
Pump
Fan
Heat exchanger
-> Pump settings
Settings
Heater
Cooler
Pump
Fan
Heat exchanger
-> Fan
Settings
Heater
Cooler
Pump
Fan
Heat exchanger
-> Heat exch.sett.
Cooler settings
Heater settings
Contol law
Protection
-> Control law
Control law
Protection
Supply air:
G 2.00
T 60
Dead zone: 0.5
Ret.w.t. control:
G 2.00
T 60
Dead zone: 0.5
Heating time:
180 s
Heat exch.sett.
F1 Fault delay: 600
Supply air control law:
G 1.00
T 100
Dead zone: 0.5
Exhaust air control law :
G 1.00
T 100
Dead zone: 0.5
Cooler delay on: 600 s
Pump settings
Min.work.time:
20 s
Summer mode:
Enable
Fan
P1, P2 Fault delay: 30 s
VUT-...-WH
Password
KOMFORT_EC_LW_v1(5)_EN.indd 18
07.09.2015 13:06:26
