Mitsubishi Electric CITY MULTI CMB-WP1016V-GA1, Service Handbook

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[
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Read Before Servicing ]
- 17 -
HWE1410A GB
3. Correction by antifreeze-liquid concentration
In HYBRID CITY MULTI system, antifreeze-liquid should be used to prevent the system from freezing. Refer to the following graphs
for the capacity correction by antifreeze-liquid. Refer to (1) for antifreeze-liquid concentration, (2) and (3) for capacity correction by
antifreeze-liquid concentration.
When adding antifreeze-liquid, be sure to perform the process in accordance with the relevant local laws and regulations.
(1) Antifreeze-liquid concentration
Use propylene glycol solution for antifreeze.
Refer to the following graph to estimate the antifreeze-liquid concentration required for freeze protection.
(2) Capacity correction by antifreeze-liquid concentration (cooling)
(3) Capacity correction by antifreeze-liquid concentration (heating)
0 10 20 30 40 50 60 70
Freezing T
e
mperature
[°C
]
0
-5
-10
-15
-20
-25
-30
Antifreeze-liquid concentration [wt%]
0 10 20 30 40 50
R
a
ti
o of c
o
olin
g c
a
p
a
c
it
y
1
0.99
0.98
0.97
0.96
0.95
0.94
0.93
0.92
0.91
0.9
Antifreeze-liquid concentration [wt%]
PURY-(E)P200~500YLM-A1,PQRY-P200~500YLM-A
0 10 20 30 40 50
R
a
ti
o of
cooling input
1
0.99
0.98
0.97
0.96
0.95
0.94
0.93
0.92
0.91
0.9
Antifreeze-liquid concentration [wt%]
0 10 20 30 40 50
R
a
ti
o
o
f heati
ng
capaci
ty
1
0.99
0.98
0.97
0.96
0.95
0.94
0.93
0.92
0.91
0.9
Antifreeze-liquid concentration [wt%]
PURY-(E)P200~500YLM-A1,PQRY-P200~500YLM-A
0 10 20 30 40 50
R
a
ti
o
o
f heati
n
g
input
1.2
1.18
1.16
1.14
1.12
1.1
1.08
1.06
1.04
1.02
1
Antifreeze-liquid concentration [wt%]
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