Apator Metra E-ITN 40 Short Manual

E-ITN 40 is modern electronic device intended for ratio-
based allocation of heat cost in buildings with central heating
system. The heat cost allocator E-ITN 40 uses the two-
sensor measuring principle. One sensor measures the
temperature of the radiator and the second sensor measures
the temperature of the room. Using this principle, allocator
ensures exact measurement of consumption value only
when the radiator really emits heat.
Heat cost allocator E-ITN 40 is equipped with electronic seal.
This seal is able to recognize unauthorized manipulation and
record its exact date. Data about unauthorized manipulation
is transmitted in radio signal.
When thermally influenced, allocator is switched to single-
sensor mode. Allocator is switched back to standard two-
sensor mode when thermal influence is finished.
E-ITN 40 is intended to be installed in one-tube
horizontal/vertical and two-tube heating systems with the
lowest mean design heating medium temperature ≥35 °C
and highest mean design heating medium temperature
≤105 °C.
E-ITN 40 is not intended for heat cost allocation for floor
heating systems, ceiling radiant heating, flap-controlled
radiators, radiators with fan, systems with steam heating
medium, air heaters and single tube radiators if exceeds the
scope of one user. It must not be also used for heating
elements that shape and design does not allow reliable
transfer of het to heat cost allocator.
Each radiator in billing (account) unit with common invoicing
heat meter must be equipped with a heat cost allocator of
the same type. Technical conditions of heating system must
be fulfilled when using heat cost allocators E-ITN 40.
Application
Measuring principle
Billing period
Dimensions
Operating frequency
Transmitting power
Conditions of registration
Material
IP rating
Conformity
≥ 35°C
t
min
≤ 105°C
t
max
Two-sensor meas. principle
Yearly or monthly (defined by
the customer
100x41x31 mm
868 MHz
< 15 mW
Sensor temperature on the
radiator ≥ 23 °C
Temperature difference
between the mean heating
medium temperature and the
reference air temperature ≤5K
(according to standard
EN 834:2013), different
conditions for registration in
summer period
ABS + PC /AI – F22
IP 42
ČSN EN 834
1. Install base plate to the radiator according to the
instructions in Installation and service manual
2. Place allocator at the upper end of the aluminium
back plate, push it down so that the locks in the
housing fit the aluminium back plate and push the
bottom part of allocator towards back plate.
Allocator must be fixed with the latch on both sides
of back plate.
Do not install allocator if notice Error or Open is displayed on
LCD.
If the sign uPr is displayed on LCD, the allocator must be
activated:
1. When LCD is on and notice uPr is displayed, hold
the button till notice --A-- appears that indicates
submenu activation.
2. Switch to item Act with short button presses if
necessary
3. When notice Act appears, press and hold the
button till notice --A-- is displayed. When you
release the button, Start item is displayed, press
button again to show the first menu items.
You can also activate allocator using a phone with Radio
Admin app using NFC or RFU 40.