Contact For External Safety Device; Switching Test; Connection Via Network/Web Server - Maico RLS T2 WS Notice De Montage Et Mode D'emploi

11 Special functions
The actual room temperature is determined using
the selected temperature sensor.
Pre-heating function: The switching contact
switches an upstream external pre-heating unit
(electric/hydraulic) on/off. The pre-heating keeps
the unit free of frost.
Pre-heating on: Switches on automatically if the
temperature falls below the minimum air inlet tem-
perature (factory setting) + T air inlet offset heat-
ing.
Pre-heating off: Switches off automatically if the
minimum air inlet temperature (factory setting) +
T air inlet offset heating is exceeded.
Shutter function: The switching contact closes
as soon as the fans switch on.
If there is no speed, the contact opens. This also
happens during pauses when operating with hu-
midity protection.
Cooling function: The switching contact closes
as soon as the max. room temperature has been
exceeded.
11.5 Contact for external safety
device
An external safety device (differential pressure
controller, smoke detector, fire alarm control
panel) can be connected to terminal X2 (12 V).
Air-ventilated fireplaces
If the ventilation unit is being operated at the
same time as an air-ventilated fireplace, a differ-
ential pressure controller is needed as the safety
device. The differential pressure controller pre-
vents the ventilation system from being operated
if the air pressure in the fireplace's installation
area falls by the permitted pressure in relation to
the flue draught.
If this happens, the ventilation unit switches off.
The differential pressure controller is connected
as a normally closed contact. When the imper-
missible partial vacuum is reached, the differential
pressure controller opens and thereby directly in-
terrupts the current supply to the fans. An electric
heat register, if present, shuts off too.
The note "External safety shutdown
triggered" appears on the operating unit.
If the differential pressure controller is closed, the
ventilation unit starts up again.
External safety device
54
If the safety device connected to terminal X2 (12
V) is triggered (pressure error, smoke etc.), the
ventilation unit shuts down automatically → para-
meter Acknowledgement of external safety device
[} 39].

11.6 Switching test

A switching test can be used to check the follow-
ing unit or accessory components.
• Supply air / outside air fan
• Exhaust air / outgoing air fan
• Bypass shutter
• Heat register (on main circuit board)
• Switching contact Basic circuit board (main cir-
cuit board)
• Brine circulating pump (with ZP 1)
• Zone shutter, zone 1 and 2 (with ZP 1)
• 3-way air shutter (with ZP 1)
• Supplementary heating relay (with ZP 1)
You receive information as to whether the com-
ponents are currently switched on or off and/or
are open or closed.
11.7 Connection via network/web
server
WARNING Danger of electric shock.
Before removing the service cover, disconnect
the ventilation unit at all poles from the power
supply, secure against being accidentally
switched back on and position a visible warning
sign.
1. Connect ventilation unit and PC* with the
router/network using a patch cable.
* System requirements: PC with Internet access
and Internet Explorer of at least Vers. 11.
2. On the PC/notebook, set the IP address to
automatic (DHCP) and save the setting.
3. Enter http://maicokwl in the Internet browser's
address line. An input window appears.
4. As a user: Enter user name `admin´. There is
no need to enter a password. The web server
opens. As an installer: Enter user name `ser-
vice´ and password 6940. The web server
opens.
You can now access your ventilation unit
from any PC in your network via http://
maicokwl.
5. Undertake commissioning.