Correction By Brine Concentration - Mitsubishi Electric PURY-WP-YJM-A Data Book

6. CAPACITY TABLES

6-5. Correction by brine concentration

In HYBRID CITY MULTI system, brine should be used to prevent the system from freezing. Refer to the following graphs for the
capacity correction by brine.Refer to 6-5-1 for brine concentration, 6-5-2 and 6-5-3 for capacity correction by brine concentration.
6-5-1. Brine concentration
Use propylene glycol solution for antifreeze.
Refer to the following graph to estimate the brine concentration required for freeze protection.
0
-5
-10
-15
-20
-25
-30
0 10 20
Brine concentration [wt%]
6-5-2. Capacity correction by brine concentration (cooling)
PURY-WP200, 250YJM-A
1
0.99
0.98
0.97
0.96
0.95
0.94
0.93
0.92
0.91
0.9
0 10 20
Brine concentration [wt%]
6-5-3. Capacity correction by brine concentration (heating)
PURY-WP200, 250YJM-A
1
0.99
0.98
0.97
0.96
0.95
0.94
0.93
0.92
0.91
0.9
0 10 20
Brine concentration [wt%]
30 40 50 60 70
30 40 50
30 40 50
OUTDOOR UNITS
1
0.99
0.98
0.97
0.96
0.95
0.94
0.93
0.92
0.91
0.9
0 10 20
Brine concentration [wt%]
1.2
1.18
1.16
1.14
1.12
1.1
1.08
1.06
1.04
1.02
1
0 10 20
Brine concentration [wt%]
30 40 50
30 40 50
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