Installation manual
M-WRG-II M-U
2
- 27 -
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 A T I O N & H E A T R E C O V E R Y
8.5.1 Cable types
Part no.
Type of ventilation
unit
Type of mains cable Type of control cable
700000 (*)
700001 (*)
700002 (*)
701000 (*)
701001 (*)
701002 (*)
M-WRG-II P
M-WRG-II P-F
M-WRG-II P-FC
M-WRG-II E
M-WRG-II E-F
M-WRG-II E-FC
NYM-J 3x1.5 mm
2
or
NYM-J 4x1.5 mm
2
(**)
No control cable
700010
700011
700012
701010
701011
701012
M-WRG-II P-T
M-WRG-II P-T-F
M-WRG-II P-T-FC
M-WRG-II E-T
M-WRG-II E-T-F
M-WRG-II E-T-FC
NYM-J 3x1.5 mm
2
or
NYM-J 4x1.5 mm
2
(**)
— InControl pushbutton
sensor:
J-Y (St) Y 10x2x0.6 mm /
J-Y (St) Y 10x2x0.8 mm
— Three-step rotary switch:
J-Y (St) Y 4x2x0.6 mm /
J-Y (St) Y 4x2x0.8 mm
— BCD encoding:
J-Y (St) Y 4x2x0.6 mm /
J-Y (St) Y 4x2x0.8 mm
700020
700021
700022
701020
701021
701022
M-WRG-II P-M
M-WRG-II P-M-F
M-WRG-II P-M-FC
M-WRG-II E-M
M-WRG-II E-M-F
M-WRG-II E-M-FC
NYM-J 3x1.5 mm
2
or
NYM-J 4x1.5 mm
2
(**)
Building management
system, Modbus, Loxone,
KNX:
J-Y (St) Y 2x2x0.6 mm /
J-Y (St) Y 2x2x0.8 mm
700030
700031
700032
701030
701031
701032
M-WRG-II P-S 485
M-WRG-II P-S 485-F
M-WRG-II P-S 485-FC
M-WRG-II E-S 485
M-WRG-II E-S 485-F
M-WRG-II E-S 485-FC
NYM-J 3x1.5 mm
2
or
NYM-J 4x1.5 mm
2
(**)
Touch Control network:
J-Y (St) Y 2x2x0.6 mm /
J-Y (St) Y 2x2x0.8 mm
Table 2: Types of mains cable and control cable for each ventilation unit type
(*) If you install these types of ventilation unit in the M-WRG-II M-U² installation kit, we recommend that you
use the following options to operate the ventilation units:
— Using the app via the gateway M-WRG-GW, part no. 5453-00
— Wireless remote control M-WRG-FBH, part no. 5478-10
— 4-way wireless pushbutton switch M-WRG-FT, part no. 5478-20
— External wireless humidity sensor M-WRG-II FSF, part no. 733010
— External wireless CO
2
sensor M-WRG-II FSC, part no. 733011
(**) If the external control input is used
8.5.2 External control input
With the external control input supplied as standard, the M-WRG-II unit has an additional
input terminal for 230 V AC (working voltage range: 85 V AC to 265 V AC / 50-60 Hz) to
which a switch, time switch, motion detector or similar may be connected.
Fig. 20: Connection diagram for
external control input
L
230 V~
N
S L N M-WRG-II
Mains cable type:
NYM-J 4 x 1.5 mm
2
The external control input is equipped with a time-delay relay that can be used to set a
switch-on delay and a run-on time:
— Switch-on delay: the M-WRG-II unit does not start until
the set time has elapsed.
— Run-on time: the M-WRG-II unit does not switch to the
previously active ventilation program until the set time
has elapsed.
In addition, the following options are available for the
external control input supplied as standard:
—
M-WRG-II O/EST-1 (without switch-on delay,
part no. 721005)
—
M-WRG-II O/EST-2 (without run-on time,
part no. 721006)
Windowless rooms can be ventilated in accordance with
DIN 18017-3 in combination with the M-WRG-II O/NOF
option (part no. 721004).
8.5.3 Option M-WRG-II O/EGG-AUS
Part no. Option M-WRG-II O/EGG-AUS
Type of control cable
721003 “Unit OFF” input, e.g. via an external smoke
detector or window contact
J-Y (St) Y 2x2x0.6 mm /
J-Y (St) Y 2x2x0.8 mm
Potential-free fault indicator output
J-Y (St) Y 2x2x0.6 mm /
J-Y (St) Y 2x2x0.8 mm
Table 3: Option M-WRG-II O/EGG-AUS
The connection board for the
M-WRG-II O/EGG-AUS option has
5 terminals (see Fig. 21):
— 3-pole connection for fault indicator
output
— 2-pole connection for “Unit OFF”
input
We recommend that you use separate
cables for the input and output.
NOTICE
The M-WRG-II O/EGG-AUS option
must be installed at the factory.
Fig. 21: Connection diagrams for
M-WRG-II O/EGG-AUS option
+24
V
C
O
M
N
O
N
C
M-WRG-II
fault indicator
M-WRG-II
“Unit OFF”
by client
by client
5
to
28
V
max.
1.5 A
GND
orange
blue
green
grey
grey