LG PRHR040 Brochure page 20

61799 LG Multi V Catalogue
Components fully protected from the elements
1. Electrical and mechanical parts are totally sealed in their enclosures.
2. Separated equipment space between compressors/control boxes, and heat
exchangers.
3. Because the electrical and mechanical parts are sealed in their own enclosures, this
makes them much more resistant to environment factors which can cause
corrosion (such as dust and rain) - thus improving the lifetime of the outdoor unit.
Alternate compressor cycling / back-up function
1. Duty-cycling function
conditionally to elongate product life span.
to meet diverse load in operation
1. inverter + constant speed 2 - inverter only
2. inverter + constant speed 3 - inverter only
3. inverter + constant speed 1 - inverter only
2. Back-up function
operation when one compressor fails to raise product
reliability.
to back up when constant speed compressor 2
is out of order
1. inverter + constant speed 2 (out of order)
2. inverter + constant speed 1 (back up operation)
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Air conditioning system
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Efficiency
obtain efficient operation and reduce noise.
alternates several compressors
can accommodate back up compressor
uses the cutting edge artificial intelligence (known as 'fuzzy control') to
Safety cover
Normal running conditions
inverter
MULTI compressor system with longer life cycle
for each compressor due to alternate operation
Compressor failure situation
inverter
Alternative compressor starts to run
Heat exchanger
const. const. const.
speed 1 speed 2 speed 3
const. const. const.
speed 1 speed 2 speed 3