HiDew RSO - 9.3 Canalization; 9.4 Hydraulic Connection

rev 10 – USER MANUAL
RS Dehumidifiers for radiant systems
30 - 52
9.3 CANALIZATION
9.3.1 VERTICAL UNITS
The vertical unit is conceived to be placed within a formwork (optional); it is not arranged to be ducted.
For different applications, when the unit is not placed within formwork, a supply flange (optional) can be mounted.
Installation of a duct on the unit without the flange can lead to a wrong functioning and this is
cause of warranty expiration.
9.3.2 HORIZONTAL UNITS
The unit RSE is provided with a flange to duct the air supply.
On the unit RSO the supply flange can be mounted [optional].
All the horizontal units are not arranged for the duct on return.
Installation of a duct on the unit without the flange can lead to a wrong functioning and this is
cause of warranty expiration.
9.4 HYDRAULIC CONNECTION
9.4.1 WATER CIRCUIT CONNECTION
For the realization of the hydraulic circuit, it is compulsory to follow the below
indications and also the national / local regulations.
Do not twine on the connections of the unit.
With a key, block the connection and with
another one fix the adaptor.
Adapt the pipes through flexible joints, in order to avoid the transmission of
vibrations and compensate the thermal dilatations.
The installation of the following components on the pipes is strongly
recommended:
 Temperature and pressure indicators for the maintenance and the control of the group. The pressure control indicates the
correct functioning of the expansion vase and highlight water losses in the plant
 Valves to close the hydraulic circuit in case of maintenance interventions
 Mechanical filter (inlet pipe) with 1 mm mesh, to protect the exchanger from the impurities present in the pipes. This
prescription is necessary overall during the first starting
 Air vent valve, to be placed on the highest point of the hydraulic circuit, in order to allow the air purge. On the internal
pipes there are manual air vent valves: this operation should be done with no tension
 Discharge valve and, where necessary, drain tank to allow emptying of the plant for maintenance or seasonal pauses.
Dimensions and position of the hydraulic connections are indicated in the dimensional drawings.
It is fundamental that the water inlet is realized in correspondence with the connection indicated by
the label “Water Inlet”. If not, the counter-current circulation will not be respected and this will lead
to risks of non-functioning, blocking or breaking up of the unit.
The hydraulic circuit should grant the constant nominal water flow (+/- 15%) in every functioning
condition.