Installation manual
M-WRG-S/Z-S, M-WRG-S/Z-24,
M-WRG-S/Z-EIB, M-WRG-S/Z-KNX (-F, -FC)
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Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
V E N T I L AT I O N & H E AT R E C O V E R Y
7.3.2 Connecting the control cable to the ventilation unit board
►
Connect the control cable to the M-WRG-S/Z-24 ventilation unit board (see terminal
assignment in sections 7.3.2.1 and 7.3.2.2 and circuit diagram in section 7.3.2.3 on
7.3.2.1 Input assignment (BCD encoding)
BCD E1 to 03
Wire colour:
__________
E2 to 04
Wire colour:
__________
E3 to 05
Wire colour:
__________
E4 to 06
Wire colour:
__________
Function
0
Operation with 3-way step-
ping switch on ventilation unit
1
Standby mode
2
Ventilation level: 01
3
Ventilation level: 02
4
Ventilation level: 03
5
Ventilation level: 04
6
Ventilation level: 05
7
Ventilation level: 06
8
Ventilation level: 07
9
Ventilation level: 08
A
Ventilation level: 09
B
Ventilation level: 10
C
Supply air
VL: 01
Extract air
VL: 05
D
Supply air
VL: 01
Extract air
VL: 10
E
Supply air
VL: 05
Extract air
VL: 01
F
Supply air
VL: 10
Extract air
VL: 01
Table 5: Input assignment (BCD encoding) for M-WRG-S/Z-24 ventilation unit
7.3.2.2 Output assignment
Output
State
Function
A1 to 07
Wire colour:
__________
0 V
Operation with 3-way stepping switch on ventilation unit
+24 VDC
Ventilation unit is controlled via building control system
A2 to 08:
Wire colour:
__________
0 V
Frost protection inactive
+24 VDC
Frost protection active
Table 6: Output assignment for the M-WRG-S/Z-24 ventilation unit