Mitsubishi Electric PURY-P72 Service Handbook page 182

[ VIII Test Run Mode ]
(2) Example
Outdoor unit 1
h4
F
H H'
Reducer
(Supplied with the BC Controller)
h1
(3) Sample calculation
Outdoor unit1:96 model
Outdoor unit2:72 model
Indoor unit1:30 model
Indoor unit2:96 model
When
Indoor unit3:12 model
Indoor unit4:15 model
Indoor unit5:12 model
Indoor unit6:24 model
The aggregate length of each liquid pipe type.
The final result will be as follows:
Amount of refrigerant to be charged [kg] = 40×0.36+3×0.23+1×0.16+50×0.06+20×0.024+7.5+2+5
Amount of refrigerant to be charged [oz] = 131×3.88+9×2.48+3×1.73+164×0.65+65×0.26+265+71+177
HWE09130
Outdoor unit 2
Branch joint kit
G
A
BC controller(GA)
Branch joint
(CMY-Y102S-G2)
Junction pipe kit
a
b
(CMY-R160-J)
(Optional accessory)
1 2
Indoor Indoor
(P06 - P54) (P72 - P96)
A : 28.58
B : 9.52
C : 9.52
D : 9.52
E : 9.52
F : 22.2
G : 19.05
28.58 A = 40m[131ft]
22.2 F = 30m[98ft]
19.05 G = 1m[3ft]
9.52 C+D+E+a+b+f = 50m[164ft]
6.35 c+d+e = 20m[65ft]
= 33.3kg
= 1173oz
- 173 -
Branch joint
(CMY-Y202-G2)
(CMY-Y102L-G2)
BC controller(HB)
D
(CMY-Y102S-G2)
C
BC controller(HB)
E
B
c d
3 4
Indoor Indoor
Maximum of 3 units per port
Total capacity of P54 or below
[1-1/8"] 40m [131ft] a : 9.52
[3/8"] 10m [32ft] b : 9.52
[3/8"] 20m [65ft] c : 6.35
[3/8"] 5m [16ft] d : 6.35
[3/8"] 5m [16ft] e : 6.35
[7/8"] 3m [9ft] f : 9.52
[3/4"] 1m [3ft]
5
Indoor
e
h1
h3
h2
f
h1
6
Indoor
[3/8"] 10m [32ft]
[3/8"] 5m [16ft]
[1/4"] 5m [16ft]
[1/4"] 10m [32ft]
[1/4"] 5m [16ft]
[3/8"] 5m [16ft]
GB