E-ITN 40
Electronic heat cost allocator
USER GUIDE
Description and usage
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 transmit 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.
Application
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 he-
ating systems, ceiling radiant heating, flap controlled radia-
tors, 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 heat to
heat cost allocators.
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.
Installation of E-ITN 40
1. Install base plate to the radiator according to the instruc-
tions in Installation and service manual.
2. Place allocator at the upper end of the aluminium back pla-
te, push it down so that the locks in the housing fit in the
aluminium back plate and push the bottom part of alloca-
tor 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.
Dane techniczne
Application
(heating medium)
tmax < 105°C
tmin > 35°C
Measuring principle
Billing period
two-sensor meas. principle yearly or
monthly (customer defined)
Dimensions 100 x 41 x 31 mm
Operating frequency 868 MHz
Transmitting power < 15 mW
Conditions registration
- temperature of the sensor of for the
radiator temp. ≥ 23°C
- difference of mean temp.of heating
medium and surroundings temp. ≥ 4°C
Material ABS + PC / Al – F22
IP code IP42
Conformity ČSN EN 834
Activation of E-ITN 40
If the sign uPr is displayed on LCD, the allocator must be ac-
tivated:
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 Ad-
min app using NFC or RFU 40.
Reading of measured data
Basic allocator status and measured values can be displayed
on LCD. LCD can display five alphanumeric characters. These
values are highlighted by underline and overline, e.g. oPEn.
Meaning of some values may be different if the additional
symbol „SM“ at the right bottom corner is displayed. These
values are mentioned with „SM“symbol in text ,e.g. 385 SM.
Dimensional drawings
