Page 4 of 7
MW-MD
Date of Issue: 08/03/2013
Issue Number: 5.3
Tel:
+44 (0) 1732 861200 -
E-mail:
Web:
www.sontay.com
© 2012 Sontay Limited. All rights reserved
Installation (continued):
Installation heat calculator
Sontay recommends mounting the calculator on the wall. Do not mount the device at the pipe or attach it directly on the flow sensor.
The mounting adapter at the backside of the calculator can be used for DIN-rail mounting or “reverse” for wall mounting.
For wall mounting attach the adapter with at least two screws to the wall and clip the calculator on it.
For rail mounting lift the adapter a little bit, place the calculator on the rail and push the adapter back until it locks.
DIN-rail
mounting
Wall
mounting
Connection sensors
The mounting of the temperature sensors should be done symmetrical with direct immersion. If immersion sleeves are used they have
to be checked for conformity to MID and have to be marked accordingly. The installation of immersion sleeves has to be done
according to DIN EN 1434-2.
The sensor cables are marked with colours (red = supply, blue = return). Do not buckle, extend or shorten the wire.
Do only use paired sensors with the same serial number on it.
Supply and return sensors must be inserted into the immersion sleeves completely.
Installation points in the flow sensor can be used for symmetrical installation of the temperature sensors.
Seal temperature sensor after installation to prevent unauthorized demounting (seals included).
Do not wrap or install wires along hot pipes.
Connection flow sensor
The total length of the wire between flow sensor and calculator should not exceed 10m. Mind the polarity at electronic flow sensors.
Operation test
Check the calculator for any error codes in the display after installation (see Page 5 for error codes). Most of the errors can be deleted
by pressing the button.
If the error appears permanently, it will be detected at the next measuring cycle and displayed again. Check whether the volume
information is updated and the displayed temperatures correspond to the present ones while the system is running (measuring cycle 2
minutes max.).
When attaching the top cover on the housing pulses on the inputs can possibly be generated. Check readings of the inputs and correct
if necessary.
Sealing
Seal the device with the included seals to prevent unauthorized opening.
Maintenance
Repairs or overhaul are only allowed by the manufacturer or companies authorized by the manufacturer.
Pocket Selection
When selecting pockets you should always try and install the pocket so that the tip is in the centre of the flow.
A good guide on what pocket length to select is;
45mm Pockets
105mm Pockets
140mm Pockets
Flow sensors
DN15 to DN40mm
DN50 to DN80mm
DN100mm to DN200mm
