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Design & installation Guide For McQuay MDS Multi System
【Note】OT: outdoor unit is above indoor unit; IT: Indoor unit is above outdoor unit
Height Max. accessory Max. accessory
Height
pipe length pipe length
OT IT
12~30HP 350 150 50 40
10HP 250 125 50 40
8HP 250 125 50 40
6HP 150 70 30 30
5HP 150 70 30 30
4HP 150 70 20 20
3HP 100 50 20 20
1.3.4 Energy saving
■ The inverter system ’s capacity modulation range is from 30% to 100%, while MDS system ’s
capacity modulation range is from 10% to 100%;
■ Quick response to the capacity modulation;
■ Min. power consumption is only 10% of the full load power consumption;
■ Compared to t he inverter system, there is no power consumption of transducer;
■ Compared to the nominal capacity scroll system, it can save 20% energy consumption.
1.3.5 Flexible combination of indoor units
■ The max. capacity of the indoor units is as 130% as the outdoor units capacity;
■ The outdoor unit can connect different numbers of indoor units according to the outdoor unit
capacity;
■ One outdoor unit can be connected up to 48 indoor units;
■ Various types of indoor units are available;
■ There are various indoor units for option: concealed exposed, ceiling concealed, high static
pressure fan coil and ceiling exposed/floor standing.
1.3.6 Long accessory pipe connection design
■ Max. accessory pipe length is 15m (12HP-30HP), max. height is 50m (8HP — 0HP).
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