Mitsubishi Electric PURY-RP200 Service Handbook page 150

[ VIII Test Run Mode ]
(2) Example
Outdoor unit
H H'
h1
(3) Sample calculation
HWE10020
A
BC controller
Reducer (P15 - P50 models)
(Supplied with the BC Controller)
a
Junction pipe
(CMY-R160-J1)
Indoor
(P15 - P80 models)
Indoor
A : ø15.88 40m 1 : P80
B : ø9.52 10m 2 : P125
3 : P15
4 : P20
Total length for each pipe size ø15.88
ø12.70
ø9.52
ø6.35
Therefore, additional refrigerant charge
*Use a main BC controller when connecting the outdoor units of
P400 model or above.
Branch joint
B
b
c
Indoor Indoor
Maximum of 3 units per port
(P100 - P250 models)
Total capacity of P80 or below
a : ø9.52 5m
b : ø12.7 3m
c : ø6.35 2m
d : ø6.35 3m
A = 40m
b = 3m
B + a = 10 + 5 = 15 m
c + d = 2 + 3 = 5 m
= 0.11 x 40 + 0.12 x 3 + 0.06 x 15 + 0.024 x 5 + 2 + 3
= 10.78 kg
= 10.8 kg
- 141 -
Indoor
d
h2
GB