Correction At Frosting And Defrosting; Operation Limit - Mitsubishi Electric Y Series Manual

2-4 Correction at frosting and defrosting

When a decrease in heating capacity due to frosted and defrosting operations is considered, the value multi-
plied by the correction factor in the table below represents the heating capacity.
Correction factor table
Outdoor inlet air temp
(˚CWB)
Correction factor

2-5 Operation limit

• Cooling
30
25
20
15
10
-5 0 5
Outdoor temperature (˚CDB)
• Heating
30
25
20
15
10
-15 -10 -5
Outdoor temperature (˚CDB)
6 4 2
1.0 0.98 0.89
10 15 20 25 30
0 5 10 15 20
1 1 Outdoor units / Y series / PUMY-71·125VM
0 -2 -4 -6
0.88 0.89 0.9 0.95
35 40 45 50
9
-8 -10
0.95 0.95