HERZ laying system

HERZ Distributor Engineering
Control station ready for
connection, HERZ compact floor
Control station ready for connection of
3 – 12 heating circuits for surface heating
and two radiators. The flow temperature
for the underfloor heating is mechanically
controlled by a temperature limiter.
Including circulator pump for underfloor
heating and control of heating circuits.
Differential control by means of mechanical
overflow valve. Two multi-function valves
guarantee the flushing of the underfloor
heating circuits and the draining and
bleeding. The valves are also equipped
with a temperature dial which indicates flow
and return temperatures. All electrical parts
are mounted in a splash-proof switch box
(IP54).
The control station is mounted in a
distributor cabinet made of galvanized
steel sheet. The front door and front frame
are white powder coated (RAL 9003) and
shut by means of bolts. A cabinet door with
cylinder lock is available upon request.
The connection of the supply pipes for the
control station is located on the right hand
side with an external thread 1" (G). It is
for direct connection to the HERZ plastic
pipe connections 1 6198 xx or the HERZ
compression adapter 1 6273 01.
The pipe connection for non-regulated
heating circuits and surface heating is
accessed from below. The distributions
are supplied with G 3/4 external threads
(eurocone). The connection with the pipe
connections is carried out using HERZ
compression adapters or HERZ plastic pipe
connections. We recommend HERZ plastic
angle pipe sleeves 3 F110 0x to insert the
pipes into the control station.
The integrated switch box is to be
connected with a power supply of 230 V ~,
50 Hz (AC) IP54. All necessary electrical
cables of the control station are already
mounted and tested. The connection is only
to be done by authorised staff.
The multi-function valves serve to flush
the entire station or single heating circuits.
These valves are intended for flushing and
can be mounted underneath the cover
using a 1 ¼" external thread or a 1" female
thread. The flow or return temperature is
displayed at the hand wheels.
An additional electrical safety thermostat
switches the pump off as soon as it reaches
excess temperature.
Maximum operating temperature 110 °C
Minimum operating temperature - 25 °C
with glycol-based frost protection of
maximum 45%
Maximum operating pressure 10 bar
Electrical connection: AC 230 V~, 50 Hz.
Differential pressure, factory setting:
Set point of 1
Differential pressure can be set:
Set range 0.5 - 5
Heating water quality according to ÖNORM
H5195 or VDI guideline 2035.
Number of pipe connections: 3-12,
HERZ order number 3 F533 xx
Control station ready for connection
230 V~, 50 Hz,
As previously described however without
radiator distributor, number of pipe
connections: 3 – 12,
HERZ order number 3 F532 xx
Normal
operation
Rinsing of
heating circuit
Rinsing of
system
In order to control the room temperature
of the corresponding heating circuits, a
distributor is installed in the switch box
which is wired with the actuators and
the HERZ distributor circulating pump.
The setting of the room thermostats with
the corresponding heating circuits at the
distributor is done during the installation
of the systems. The power supply of the
control station should be 1 ~ 230 V, 50 Hz
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