MRV7S

Free choice communication wiring sequence, which greatly reduces the installation limitations. 1192 Communication protocol: Compared with the ordinary communication protocol, the communication rate has been greatly improved, there will be no delay reaction.

When an indoor unit is powered off, the system can continue to run without reporting the fault and donot affect the operation of other indoor units (less than 10 indoor units are allowed to lose power).

Models above 8HP come standard with EVI DC inverter compressors, increase the refrigerant circulation and performance by 15%. Independently developed drive control motherboard, 180-degree sine wave drive technology, improving overall machine effciency by up to 30%.

When the guest leaves the hotel room and remove the card to power off the MRV indoor unit, the EEV in the indoor unit may not be fully closed, thus the indoor unit evaporator freezes because of excess cooling capacity. The built-in multitenant site using separate circuit breaker for each indoor unit to close the EEV.

Automatic variable refrigerant adjustment according to ambient conditions.
The cooling capacity or cooling load of the air conditioner is adjusted according to different outdoor temperatures. Advanced VRA technology adds correction to the evaporation temperature of the current mode to improve energy efficiency under the current modes.

Direct refrigerant cooled PCB:
Refrigerant directly into the fin interior, the fin cooling compressor drive module, reduce a layer of heat resistance. Under the same operating condition, the temperature of the compressor drive module is lower than 8°C, to ensure that the whole unit can continue to work under the high temperature.

The ODU can directly connect with centralized control system without the Modbus.

Simple addressing IDU
Use automatic addressing mode to set IDU and ODU addresses. If the AC system is powered off, the original address will be retained, solve the pain point of resettng the address after the power failure.
Use the indoor unt PCB board dip set addressing.
Use wired controller set the indoor unit addressing.

MRV7S supports a maximum of 4units in combination, with a single unit capacity up to 24HP and a maximum combined capacity of 96 HP. It reduces the footprint by 50% compared to top-discharge units of the same capacity, freeing up more usable space.

Max. total pipe length 560m,
Max. actual pipe length 175m,
Max. equivalent pipe length 150m,
Max. drop height between OUDs and IDUs:
40m (ODUs at the bottom) or 50m (ODUs at the top),
30m drop height between IDUs.

Automatic refrigerant charging technology
Automatic refrigerant detection technology
Automatic refrigerant recovery technology.

Professional selection software facilitates the design of project.