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INSTALLERUSER
MAINTENANCE TECHNICIAN
1.5 HYDRONIC MODULE.
Audax TOP ErP units are equipped with an in-
built hydronic module that enables quick instal-
lation with the aid of a few external components.
All protections and valves required are inserted
in the unit's hydraulic circuit. Refer to Figure
1-9 for proper connection of the hydraulic pipes.
Figure 1-10 describes the in-built components
with dierent congurations.
N.B.: it is the installer's responsibility to size
the expansion vessel correctly according to the
type of system.
N.B.: the safety valve discharge can be channelled
out of the machine by using the pre-cut holes
(refer to Fig. 1-4).
In this case, you must provide a draining funnel
on demand.
1.6 HYDRAULIC CONNECTIONS.
e plate heat exchanger hydraulic connections
must be carried out by using all the components
that are required and made from materials that
are able to ensure a watertight seal of the threaded
couplings. Figure 1-11 shows a classical example
of a hydraulic circuit.
e hydraulic circuit must be carried out by
following the recommendations below:
1) It is recommended to provide shut-o valves
that insulate the most important components
of the system and the said heat exchanger. e
said valves, which can be ball, globe or throttle
(not galvanised), must be sized in a way as to
have the least possible head losses when they
are completely open.
2) e system must be equipped with a draining
system situated at the lowest point.
3) e highest point of the system must have
air vents.
4) Pressure point connections and manometers
must be installed upstream and downstream of
any additional pumps.
5) All pipes must be insulated and supported in
an appropriate manner (no galvanised pipes).
It is important to take the following precautions:
1) e presence of solid particles in the water
can obstruct the heat exchanger. erefore,
you must protect the heat exchanger inlet with
a lter having a removable mesh (supplied).
2) Aer assembling the system, and aer each
repairs, it is essential to thoroughly clean the
entire system, paying special attention to the
state of the lter.
3) To adjust the pump's ow rate, you must as-
semble a check valve on the ow pipe during
the installation phase.
4) Should water be cooled at temperatures below
5°C, or if the device is installed in areas subject
to temperatures below 0°C, it is important to
mix the water with an adequate amount of
glycol.
Key:
1 - Unit water inlet
2 - Unit water outlet
3 - Unit water draining
Key:
1 - Automatic air vent valve
2 - Flow switch
3 - Safety valve (outlet 1/2’)
4 - Temperature probe
5 - Circulation pump
6 - Cap to release a seized pump
7 - Expansion vessel
Hydraulic connections
Audax TOP 6-8 ErP
Integrated hydraulic circuit
Audax TOP 6-8 ErP
Integrated hydraulic circuit
Audax TOP 12-16 ErP
Unit 6 8 12 16
Compressor type Rotary DC Inverter Technology
Water Pump Speed Modulating
Expansion Vessel
Capacity l 2 3
Pre-charged pressure kPa 100
Water circuit content l 1 1.2 2.5 2.5
Hydraulic connections 1”M
Water circuit maximum operating pressure kPa 300
Hydraulic connections
Audax TOP 12-16 ErP
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