Refrigerant Piping System - Mitsubishi Electric CITY MULTI PQRY-P250 Installationshandbuch

7.2. Refrigerant piping system

• Connection Example (Connection of 5 indoor units)
A Heat source unit
B H=50 meters or less (Higher heat source unit than indoor unit)
C H'=40 meters or less (Lower heat source unit than indoor unit)
D h1=15 meters or less (10 meters or less for type 125 unit)
E h2=15 meters or less
F 70(60) meters or less
G BC controller
H Indoor unit
10
A
F
A
B C
I
a
b
H H
D
J
E
G
K
*1
B
L
d e
c
H H
M
H
N
I Joint pipe CMY-R160-G (For V-E type of BC controller)
J (Models over 81)
K 30 meters or less
L Branch pipe CMY-Y102S-F
M Max. 3 sets for 1 connection
Total capacity less than 80
(But cooling/heating mode is same)
N *1 For selection of piping B. see (3).