Zenner multidata WR3 - Dimensions; General Information; Installation Instructions; Safety Instructions for Installation

B
H
T
21
Installation instructions
Dimensions
Height: H = 106 mm
Width: B = 126 mm
Depth: T = 54 mm
Safety instructions for installation
Read these instructions care-
fully right up to the end before
starting to mount the device! The
installation has to be done by
qualied professional personnel.
The current laws and regulations
have to be observed, especially EN
1434 part 1+6, (in Germany also
AGFW directive FW202, FW 218 and
FW 510). At devices with communi-
cation interfaces or mains supply
the general technical rules and the
correspondent regulations have to
be followed.
While demounting ow sensors
and temperature sensors make
sure no heating water escapes
from the pipe. This can cause
burns! Close valves and release
pressure before installation.
General information
Calculators for combined heating /
cooling meters can be recognized
at the imprint „change over“ or
„Heating / Cooling“ on the front of
the chassis.
Take care of:
■
The display must be readable at
all times.
■
To avoid malfunctions due
to other interferences do not
install uorescent lamps, switch
cabinets or electric devices
such as motors or pumps in the
immediate vicinity of the meter
(minimum distance 1 m).
■
All welding must be nished.
■
The ambient temperature must
not exceed 55 °C.
■
The type of temperature sensor
must correspond with the
calculator.
■
The pulse value of the ow sen-
sor must correspond with the
one from the calculator.