Midea MCCDH30A-TA3SL, Technical & Service Manual

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Air-cooled modular chiller unit
7
Wired controller
Three-core shielding
twisted pair
Three-core shielding
twisted pair
Water outlet temp.
Water outlet temp. Water outlet temp.
Total water outlet temp.
(Just for master unit)
Total water outlet temp.
(Just for master unit)
Total water outlet temp.
(Just for master unit)
8).Environmental care
Ecological R410A refrigerant.

Chlorine-free and environmental friendly refrigerant, zero ozone depletion potential.

High density refrigerant, therefore, less refrigerant required.

Leak-tight refrigerant circuit, Brazed refrigerant connections for increased leak-tightness.
9) Economical operation
New design adopts electronic expansion valve precise refrigerant control in wider range. Electronic
expansion valve allows operation at lower condensing pressure, adjustment can be made fast linear
response, making the system more stable output, the indoor temperature more uniform, and enhance
human comfortable.
10).Compact structure
Air cooled modular chiller structure are compact, light weight. The system adopts double pipe, shell and tube
heat exchanger, not only greatly enhanced the transfer performance, but also reduce the unit weight, the
lightest single module only has 380kg.
11).Backup function
When unit is failed.

If master unit fails, all the units will stop.

If one slave unit fails, this unit will stop but the others will keep running.

When the master unit fails, any of the slave one can be set as the master unit by manual setting.
When unit is under protection

If master unit‟s protection occurs, this unit will stop but the others will keep running.

If slave unit‟s protection occurs, this unit will stop but the others will keep running.

( Except PE, P9
protection happen
)
PE
：
Low temperature protection of evaporator.
P9
：
Outlet and inlet water temperature difference protection.
Master Slave
Master Slave