58
7.
Capacity calculation due to capacity modification coefficient
(1) Calculation method of cooling capacity---Refrigerating capacity to be known=Refrigerating capacity
x(AxBxCxDxE) W
A Capacity compensation coefficient of
indoor air wet-bulb temperature condition.
B Capacity compensation coefficient of outdoor
air dry-bulb temperature condition.
C Capacity modification coefficient
under airflow variation rate of indoor
unit group(only for duct unit)
D Capacity compensation suitable for total
capability of indoor unit group (cooling)
1.2
1.1
1.0
0.9
-5
●
0.7
0.6
0.5
0
5
10
15
20
25
30
35
40
45
0.8
50
C
ap
ac
ity
m
od
ifi
ca
tio
n
co
ef
fic
ie
nt
Out
●
door air
dry
-bulb temperature
120
●
100
80
60
40
20
0
●
20
●
40 60 80 100 120 135
Total capacity of indoor units(%)
St
an
da
rd
c
ap
ac
ity
C
ap
ac
ity
m
od
ifi
ca
tio
n
co
ef
fic
ie
nt
1.2
1.1
1.0
0.9
0.8
15
20
24
Indoor air wet-bulb temperature
C
ap
ac
ity
m
od
ifi
ca
tio
n
co
ef
fic
ie
nt
1.1
1.0
0.9
80
90 100 110 120
Airflow variation rate
(
)
C
ap
ac
ity
m
od
ifi
ca
tio
n
co
ef
fic
ie
nt
E: Capacity compensation value at different piping length and drop
Summary of Contents for MRV 5-RC AB052MAERA
Page 1: ...MRV 5 RC Service Manual SYJS 03 2019REV A Edition 2019 03 ...
Page 3: ......
Page 55: ...52 AV08 10 12 14IMVURA 4 Center of gravity x X 347 9587 y 471 5454 z 725 6683 y z ...
Page 56: ...53 AV16 18 20 22IMVURA x X 650 5962 y 380 7255 z 706 5342 y z ...
Page 106: ...103 2 Dimension 4 19 200 60 25 25 25 249 108 232 84 69 388 73 82 65 103 177 4 44 4 35 277 ...
Page 116: ...113 2 Preparation before installation ...
Page 162: ...159 One by one valve box PCB code 0151800186A 2 Valve box PCB photo and dip switch setting ...
Page 165: ...162 One by four valve box PCB code 0151800466 ...