13
PREFACE
This document contains useful and important technical
information for the installation of Remeha Rematic Con-
troller sets nr. 142 and nr. 155. For additional informa-
tion: please contact the Technical Department of your
supplier.
The data published in these technical instructions are
based on the latest information (at date of publication)
and may be subject to revisions.
We reserve the right to continuous development in both
design and manufacture, therefore, any changes to the
technology employed may not be retrospective nor may
we be obliged to adjust earlier supplies accordingly.
9
GENERAL SET DESCRIPTION
Rematic Controller sets include Rematic 2945 C3 con-
trollers. These sets have been designed for on-off and
2-stage boiler command. This boiler can be a single unit
or several units in a cascade set-up. If the number of
boilers to be controlled exceeds the controller’s capacity,
slave controllers can be added. Set nr. 142 includes
the the Master controller, set nr. 155 contains the Slave
controller.
Exemple: If two 2-stage boilers and one on-off boiler
have to be controlled in cascade, one Master controller
and two Slave controllers will be needed ( one off set nr.
142 and two off set nr. 155).
Please find below (Table 01) all the functions of Master
and Slave controllers. Also, the maximum number of
boilers to be connected can be found. A combination
of a Master controller ans some Slave controllers can
control a maximum of five 2-stage boilers. A maximum
number of 4 Slave controllers can be connected to one
Master controller.
Function
Number
per
controller
Total max.
On-off boiler control
1
5
2-stage boiler control
1
5
Mixing circuits with pump and mixing valve
2
10
Calorifier with pump or mixing valve
1
5
Boiler pump
1
5
Table 01
Functions and possibilities of C3-controllers
10 SET CONTENTS
Sets nr. 142 and nr. 155 comprise the following compo-
nents:
Description
set nr. 142
set nr. 155
master
slave
Technical information controller
1
1
This assembly instruction
1
1
Controller 2945 C3-m (contains 2 off ZVF 210 flow sensor for mixing groups)
1
-
Controller 2945 C3-s (without sensors)
-
1
Temperature sensor ZVF 210 (flow sensor for mixing groups)
-
2
Temperature sensor ZAF 200 (outside sensor)
1
1
Temperature sensor ZTF 220 (immersion sensor for boiler)
1
-
Connection adapter
1
1
Table 02
Set contents
Attention: return temperature sensors are not supplied
