Meltem M-WRG-GW Montageanleitung
VENTILATION & HEAT RECOVERY
INSTALLATION INSTRUCTIONS AND
USER GUIDE
Part no. 744013EN, Week 03/2020 EN
Gateway M-WRG-GW
21 3
4 5 6
Fig. 1: Gateway M-WRG-GW
Item in Fig. 1 Description
1Wireless connection LED
2Network LED
3Power LED
4Reset button
5Power supply connection
6Ethernet connection
1 Introduction
1.1 Notes on these instructions
These instructions contain important information that
should be followed when installing the M-WRG-GW
gateway.
►Read all the instructions carefully to avoid possible risks and
mistakes.
►These instructions are part of the product. Keep the instructions
in a safe place for future reference.
NOTICE
►When operating the ventilation unit, also follow the operating
instructions that were supplied with your unit.
1.2 Description
The M-WRG-GW gateway is used for cloud-based operation of
ventilation units from the M-WRG-II and M-WRG series constructed
from 2020 onwards (excluding bus unit types) via an iOS or Android
app. The gateway forms the interface between the ventilation unit(s)
and the Meltem app. It can be used to control, program and read
the units decentrally, centrally on site or online from anywhere in the
world. It is used to create time programs for different controllers to
suit the unit conguration. The user can also program various unit
functions and sensors. The app is used to create a personal user
account for conguring and managing the gateway. Communication
between the gateway and ventilation units is also established and
controlled via the app. Data protection has top priority; the data is
fully encrypted and can only be released by the user. Up to 20 units
may be logged into a gateway; the number is only limited by the
wireless range.
The following components are needed to control the ventilation units
using the app:
— Ventilation units from the M-WRG-II and M-WRG series
constructed from 2020 onwards (excluding bus unit types)
— Smartphone or tablet, iOS or Android operating system
— Meltem app
— M-WRG-GW gateway with Meltem cable and mains adapter
— Router with Internet access (provided by the customer)
The gateway can also be used in parallel with the M-WRG-FBH
wireless remote control, M-WRG-FT 4-way wireless pushbutton
switch, M-WRG-II FSF wireless humidity sensor and M-WRG-II FSC
wireless CO2sensor and in conjunction with the U2installation
version and all M-WRG-II and M-WRG covers.
1.3 Target group
These instructions are intended for users of the M-WRG-GW
gateway. No special prior knowledge is needed.
1.4 EU declaration of conformity
The gateway described below
Type: M-WRG-GW
Part number: 5453-00
manufactured by
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4
D-82239 Alling
conforms to the regulations and standards listed in the EU Declara-
tion of Conformity.
1.5 Technical data
Product characteristics
Dimensions (W x H x D) 105 mm x 80 mm x 25 mm
Weight approx. 90 g
Colour white, similar to RAL 9010
Material of the plastic parts ABS
Ambient conditions
Ambient temperature during
operation
0 °C to 50 °C
Ambient temperature for storage
and shipping
-25 °C to 60 °C
Relative humidity 5 % to 90 %,
non-condensing
Power supply
Plug-in mains adapter including
cable with micro USB-B connector
230 V AC to 5 V DC,
max. 500 mA
Communication
Communication frequency 868.3 MHz, Rx class 2,
minimum output power 0 dBm
Ethernet 10/100 Mbit
Connections
Ethernet RJ45 jack
5 V DC power supply Micro USB-B jack, max.
current consumption 200 mA
1.6 Environmentally-friendly disposal
The components of the M-WRG-GW gateway must not be
disposed of in the residual waste bin.
►In Germany, metal and plastic components should be disposed
of at the local recycling centre. The national regulations in other
EU states should also be followed.
►In Germany, electrical components should be disposed of in
accordance with the Electrical and Electronic Equipment Act
(ElektroG). In other EU states, the national implementation of the
Waste Electrical and Electronic Equipment Directive 2012/19/EU
(WEEE) should be followed.
► The regulations and statutory requirements in your own country
concerning disposal should also be followed.
1.7 Explanation of the symbols used
►This symbol indicates an action to be taken.
— This symbol indicates a list.
2 Safety
The M-WRG-GW gateway is approved only for use in dry interior
areas and must be protected against humidity and moisture to
prevent short-circuits.
2.1 Notes on operation
This unit may be used by children from 8 years old and by persons
of restricted physical, sensory or mental abilities or persons lacking
experience and knowledge if they are supervised or have been
instructed in how to use the unit safely and understand the associ-
ated hazards. Do not allow children to play with the unit. Cleaning
and user maintenance must not be carried out by children unless
they are supervised.
2.2 Intended use
The M-WRG-GW gateway must only be used to operate M-WRG-II
and M-WRG ventilation units. Any different or more extensive usage
will be regarded as contrary to the intended use. The intended use
also includes compliance with all the notes in these instructions.
For any use contrary to the intended use, Meltem Wärmerück-
gewinnung GmbH & Co. KG shall accept no liability for any damage
that may occur and offers no warranty that the components will work
perfectly and correctly.
3 Items supplied
— Gateway M-WRG-GW
— Plug-in mains adapter including cable
with micro USB-B connector
— Ethernet cable
4 Installation and set-up
NOTICE
Never install the gateway in a metal enclosure, otherwise wireless
communication between the gateway and ventilation unit will not
be possible.
4.1 Fixing the gateway to a wall (optional)
1
1
1
Fig. 2: Cut-outs on the back of the gateway
On the back of the gateway, there are three cut-outs (item 1 in
Fig. 2) for screw heads. This will allow you to attach the unit hori-
zontally or vertically to the wall.
4.2 Connecting the gateway
►Take the Ethernet cable provided and use it to connect the
Ethernet connection (item 6 in Fig. 1) on the gateway to your
network (e.g. using a LAN connection on your router).
►Plug the micro USB-B connector on the mains adapter into the
power supply connection (item 5 in Fig. 1) on the gateway.
►Plug the mains adapter into a 230 V socket. The Power LED
(item 3 in Fig. 1) lights up. After a few seconds, the green and
orange LEDs on the Ethernet connection (item 6 in Fig. 1) also
light up.
4.3 Installing the Meltem app and connecting the
gateway/ventilation units
►Install the free Meltem app for iOS or
Android on your unit.
►Start the Meltem app.
► Create a new user account if you have
not already done so.
►Make a note of the access details (login/password) for your user
account.
►Follow the instructions on the Meltem app to connect and
manage the gateway and ventilation units.
5 Error messages
5.1 LEDs on the front panel (item 1, 2 and 3 in Fig. 1)
LED Status Cause Remedy
Off No power supply Plug the mains adapter into a
230 V socket.
Flashes Gateway not
starting
Restore the factory settings
on the gateway (see
section 6)
Off No network
connection (cloud)
— Run initial set-up using
the app
— Check LEDs on the
Ethernet connection
— Check the Internet access
Off No wireless
connection or no
unit registered
Run initial set-up using the
app
5.2 LEDs at the RJ45 jack (item 6 in Fig. 1)
LED
colour
Status Cause Remedy
Green Off No Ethernet
connection
Check the Ethernet
cable
Orange Off No DHCP server
available: no IP
address available Activate the DHCP
server on the network
or use a xed IP
address in the app
Orange Flashes No DHCP server
available: default
IP address
(192.168.0.207) is
used.
6 Restore the factory settings
►Press the Reset button (item 4 in Fig. 1) using a pointed object
(e.g. ballpoint pen) for at least 10 seconds.
All the LEDs go out and then ash. The Power LED (item 3 in Fig. 1)
then lights up and the gateway restarts. This process takes around
30 seconds.
NOTICE
When you restore the factory settings, all wireless connections
and login information are removed from the gateway.
7 Cleaning
Wipe the outer surfaces from time to time with a soft, damp cloth.
Use mild soapy water. Never use acidic, corrosive or abrasive
cleaning agents.
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