Lennox MCC Series, Installation, Operating And Maintenance

Page: 55 / 86

Installation - Operation - Maintenance manual (IOM) • AIR COOLED CHILLERS & SPLIT UNITS - 1106-E
• 53 •
WA HIGH EFFCIENCY
WA 075 090 100 110 130 150 200 230 270 300 370
Minimum outlet water temperature °C 5
Maximum inlet water temperature °C 20
Minimum difference water inlet/outlet °C 3
Maximum difference water inlet/outlet °C 8
Minimum outside air temperature °C 6
Minimum outside air temperature
with low ambient kit
°C -10
Maximum outside air temperature :
• Normal operation with CLIMATIC™ 50
12°C/7°C water
+ one compressor unloaded
°C 53 51 51 54 53 53 51 51 52 53 49
• Start-up with CLIMATIC™ 50
+ Electronic expansion valve
and ONE compressor unloaded °C 52 49 49 53 52 52 49 49 50 52 46
WA SUPER LOW NOISE
WA 075 090 100 110 130 150 200 230 270 300 370
Minimum outlet water temperature °C 5
Maximum inlet water temperature °C 20
Minimum difference water inlet/outlet °C 3
Maximum difference water inlet/outlet °C 8
Minimum outside air temperature °C 6
Minimum outside air temperature
with low ambient kit
°C -10
Maximum outside air temperature :
• Normal operation with CLIMATIC™ 50
12°C/7°C water
+ one compressor unloaded
°C 52 49 49 53 52 52 50 49,5 51,5 52,3 47,1
• Start-up with CLIMATIC™ 50
+ Thermostatic expansion valve
and ONE compressor unloaded
°C 50 46 46 51 50 49 47 46 48 49 43
• Start-up with CLIMATIC™ 50
+ Electronic expansion valve
and one compressor unloaded
°C 51 47 48 52 51 50 48 47 49 50 44