mundoclima MUENR-H6 Series Installation & Owner's Manual page 8

If the installation requires a useful head higher than that
obtained by installing a pump assembly and storage tank,
it is recommended that an additional pump is installed on
the unit. Provided the additional pump installed inside of
unit(only model 12/14/16KW can be installed inside of
unit), the pump must connected close to plate heat
exchanger. Provided the pump installed outside of unit,
the pump shall be connected at water pipe's outlet.The
pump can be easily installed on the unitby removing the
pump connection pipe (see page 3). Connect to terminal
PL,PN on the electrical panel.
The chillers must be providedwith a filling/top-up
system connected to the return line and a drain cock
in the lowest part of the installation.Installations
containinganti-freeze or covered by specific legisla-
tion must be fitted with hydraulic disconnectors.
The manufactureris not liable for obstruction,
breakage or noise resulting from the failure to install
filters or vibration dampers.Particular types of water
used for fillingor topping up must be treated with
appropriate treatment systems.For reference values,
see the table.
EMPTYING THE INSTALLATION
-Before emptying,place the mains switch in the "off "
position
-Make sure the installation fill/top-up water cock is closed
-Open the drain cock outside the unit and all the installation
and terminal air vent valves.
SIZE AND POSITION OF CONNECTIONS
auto-water
replenishing orifice
water outlet
water inlet
A
Model
(mm)
10 to 16kW 300
7
security
discharge
E
F
B C D E
(mm) (mm) (mm) (mm)
195 155 105 68
FILLING THE INSTALLATION
-Before filling,check that the installation drain cock is
closed.
-Open all installation and terminal air vents.
-Open the gate valves.
-Begin filling,slowly opening the water filling cock outside
the unit.
-When water begins to leak out of the terminal air vent
valves ,close them and continue filling until the pressure
gauge indicates a pressure of 1.5 bars.
The installation must be filled to a pressure of
between 1 and 2 bars.
It is recommended that this operation be repeated
after the unit has been operating for a number of
hours.The pressure of the installation should be
checked regularly and if it drops below 1 bar,the
water content should be topped-up.
Checkthe hydraulic tightness of joints.
an all-pole disconnection device which has at least
3mm separation distance in all pole and a residual
current device (RCD) with the rating of above 10mA
shall be incorporated in the fixed wiring according to
the national rule the appliance shall be installed in
accordance with national wiring regulations.
If the fluid in the circuit contains anti-freeze,it should
not be allowed to drain freely as it is pollutant.It
should be collected for possible reuse. When draining
after heat pump operation,take care as the water
may be hot (up to 50°).
1 Water inlet (1 1/4")
2 Water outlet (1 1/4")
3 Auto-watet replenishing orifice
4 Water outlet of safety Valve
5 Wire hole
Water
F
inlet/outlet
(mm) replenishing (Ø)
(Ø)
105 R5/4
(1 1/4")
Auto-water Security
discharge (Ø)
G1/2 G1/2