Midea MGA-D10/N1 User Manual

MCAC-UTSM-2014-01 R410A Mini Split Chiller 50Hz
57
Total iron
less than 0.3 ppm
Alkalinity M
less than 50 ppm
Total hardness
less than 50 ppm
Sulphur ions
none
Ammonia ions
none
Silicon ions
less than 30ppm
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.
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
Model
MGA-D10/N1
MGA-D12/N1
MGA-D14/SN1
MGA-D16/SN1
Water inlet/outlet (Ø)
R5/4”
R5/4”
R5/4”
R5/4”
Auto-water replenishing(Ø)
R1/2”
R1/2”
R1/2”
R1/2”
Security discharge(Ø)
G1/2”
G1/2”
G1/2”
G1/2”
Mesh filter (Ø )
R5/4”
R5/4”
R5/4”
R5/4”
Air vent (Ø )
G3/8”
G3/8”
G3/8”
G3/8”
a) The installation must be filled to a pressure of between 1 and 2 bars.
b) 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.
c) Check the hydraulic tightness of joints.
d) 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℃).

Midea MGA-D10/N1 Specifications

General

Brand	Midea
Model	MGA-D10/N1
Category	Air Conditioner
Language	English