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Installation manual
M-WRG-II M
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
9.3.1
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 the external control input is used
9.3.2
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.
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.
Fig. 18: 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
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).
9.3.3
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. 19):
— 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. 19: 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
