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468 931 004 016-1
Installation and
operating instructions Ice detector
EM 524 89
EM 524 90
for open spaces and gutter heating
K
WARNING:
This independent electronic device can be installed for the fully automatic electric
heating of open spaces, garage drives, stairs, ramps, flat roofs and gutters.
The device must only be installed by a qualified electrician in accordance with the
connection diagram. Pay strict attention to the latest electrical safety standards and
the local electricity supply company’s safety instructions. The device is intended
for installation in control cabinets or distributors. To achieve protection class II the
appropriate installation measures must be taken. The device complies with EN 60730
and works in accordance with operating mode 1C.
Proper operation is only possible if the system is installed before there is frost or snow
and not when the open spaces or gutters to be heated are already covered with snow
or ice. It is recommended that the system is left on during the entire heating period!
Note!
The system will only work properly if the thermal output of the space to be heated has been
calculated properly or adapted to local conditions. Please contact your system installer
Contents
Instructions/General Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Menu mode .......................................................... 4
Menu items ..........................................................8
Alarm messages ..................................................... 10
Design 11 .............................................................
Operating 11 ..........................................................
Sensor for open spaces ................................................ 12
Combined temperature and moisture sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Sensor assembly ..................................................... 14
Installation examples ..................................................18
Ice and snow sensor ..................................................20
Temperature sensor ..................................................21
Setting desired values ................................................. 23
Operating modes ..................................................... 24
Maintenance 26 ........................................................
Storage program ..................................................... 26
Connection diagrams .................................................27
Appendix:
Technical data ....................................................... 33
Dimensions 35 .........................................................
Brief operating instructions ............................................. 36
2
Instructions
The ice detector is installed for the fully automatic electric heating of open spaces,
garage drives, stairs, ramps, flat rooves and gutters. Unlike manually controlled (touch-
dependent) or thermostatically controlled (only temperature dependent) systems, the
heating will only be switched on if there is a danger of slippery conditions, i.e. snow, ice or
sleet and will, naturally, be switched o after thawing. This ensures energy savings of up to
80% compared with thermostatically controlled systems.
General description
2-zone EM 524 90 and 1-zone EM 524 89
The 2-zone device is a dual device. It combines the function of two EM 524 89 regulators in
one housing. Apart from this dual nature, the single zone EM 524 89 has the same features
and capability.
There is a combined LCD display, input buttons and combined electronics.
There are two of all the other features. A dual set of sensors for temperature and moisture.
Two separate relays for the heating circuits.
There is one sensor for air temperature, for detection of a sudden drop in temperature,
and this is used jointly. There is only one alarm relay.
The two separately functioning parts of the device are called zones, Zone A and Zone B.
The zone A sensors are connected to the group of terminals 19 to 27.
The zone B sensors are connected to the group of terminals 28 to 36.
The zone A heating circuit is connected to terminals 14 and 15.
The zone B heating circuit is connected to terminals 17 and 18.
EM 52489: the sensors are connected to the group of terminals 10 to 19.
the heating circuit is connected to terminals 8 and 9.
The functionalities of both zones work completely independently of each other.
All of the above-mentioned sensors can be used for each of the zones independently of
each other in any combination you wish.
Both zones can be set independently in various ways using the menu. Constant display of
the operating status also takes place separately according to the zones, whereas the LED
indicator lights on the front panel show the zone which is currently being displayed.
When operating the device, in order to be able to distinguish between both parts of the
device, there is a menu item called “Zone”, which can be used to switch between the
menus for both zones. The two LED diodes on the front panel indicate which of the menus
you are currently viewing.
Language settings and settings for display of °C / °F always apply for both parts of the
device, whereas all other settings relate only to the relevant zone.
3

Produktspecifikationer

Varumärke: EBERLE
Kategori: Inte kategoriserad
Modell: EM 524 90

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