Allocate A Relay Channel For Day Mode Of The Boiler - Velbus VMB1TC Manual

Allocate a relay channel for day mode of the boiler

Some boilers can be set to day or night mode. In night mode, the boiler temperature is set approximately 10 degrees
lower. In our example, the boiler must be switched to day mode as soon as one of the sensor modules is in day or
comfort mode. This is accomplished through relay channel 1 of the first relay module.
1. Set all sensor modules in anti-freeze mode by
pressing the push button on the front panel
repeatedly until all LEDs are off.
2. Set the MODE and TIME1 rotary switches for
channel 1 of the first relay module to '0' (instant
control).
3. Remember the address of this relay module to
reinstate it later on.
4. Set the address of the first relay module to 'C1'. The
'MODE 1' LED flashes to indicate push button
learning mode (PBM).
Out1 Out2
Mode/ Mode/ Mode/ Mode/
ADDR. ADDR. Time2 Time2 Time2 Time2
0 0 0
Time1 Time1 Time1
0 0 0
Learn CH1 CH2 CH3
Fx : OFF
x=CH1...4
Ex : ON
: : 9x :
Dx TGL Bx TG1 ST1
Cx : PBM Ax : TG2 8x : ST2
ON Rx Tx Mode1
Out3 Out4
4 Channel relay module
Mode/
Time2 Time1 Mode/Time2
0 0 0:Moment Start-stop
1:5s Staircase
2:10s Non-Retrigger
3:15s Turn Off Delay
4:30s Turn On Delay
5:1' Trig Release
Time1
6:2' Blink
0 0
7:5' 5'
8:10' 10'
9:15' 15'
A:30' 30'
CH4
B:1h 1h
C:2h 2h
VMB4RY D:5h 5h
velleman E:1day 1day
F:Toggle Toggle
Mode2 Mode3 Mode4
VMB1TC Temperature controller manual – rev 5.0
5. Press and hold the third push button (DAY) of the first
temperature sensor until the relay is energised and
the red LED on the sensor module flashes.
6. Press and hold the third push button (DAY) of the
second temperature sensor until the relay is
energised and the red LED on the sensor module
flashes.
7. Press and hold the third push button (DAY) of the
third temperature sensor until the relay is energised
and the red LED on the sensor module flashes.
8. Set the address of the first relay module back to its
original value.
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