lanry RC Series Manual

RC Series Ultrasonic Heat Meter
General Description
RC Series ultrasonic heating (cooling, heating-cooling)
meters are used for energy measurement of heating or
chilled water in residential and small commercial heating
and air conditioning systems. They are available in
DN15...40 and have an electronic energy calculator with
separate register for heating and cooling energy. They
are fitted with an M-Bus interface for integration into M-
Bus networks.
Important Notice
Please read this manual carefully before undertaking
the installation!
RC Series ultrasonic heat meters must be installed by
qualified personnel in accordance with the instructions
given in this manual.
RC takes no responsibility for difficulties arising from
failure to observe these instructions.
Seals on the heat-meter must not be damaged.
Breaking or damaging meter seals is seen as
violation of the equipment.
It is not allowed to shorten and/or replace the
data or temperature sensor cables attached to the
product.
These instructions should be handed over to the user
upon completion of the installation. They should be kept
for future reference.
Installation
Before Installation
•
It is recommended to install a valve before and after
heat meter for maintenance and filter cleaning.
•
It is recommended to install a filter on inlet of heat
meter.
Figure 2. Recommended installation
Installation Precautions:
alve installation before and after heat meter and filter,
easy for heat meter maintenance and filter cleaning.
Please notice valve opening sequence: open
slowly valve before heat meter in inlet water side
firstly, then open valve after heat meter outlet water
side. Finally open valve in back water pipeline, to
protect heat meter due to sand, stone etc. impurity
which inside of pipeline of lower of heat meter flowing
back to meter body.
1