Restrictions On Pipe Length - Mitsubishi Electric PQHY-P200YLM-A Service Handbook

[ II Restrictions ]

[8] Restrictions on Pipe Length

(1) End branching <PQHY>
P200 - P600 models
Heat source unit
A
First branch
(Twinning kit)
Twinning kit
Length Total pipe length
Total pipe length (L) from the heat source unit to
the farthest indoor unit
Total pipe length from the first branch to the far-
thest indoor unit ( )
Height Between indoor and
difference heat source units
Between indoor units
HWE15060
D
L
B
C
a b
1 Indoor 2 Indoor 3
Operation
Heat source unit above
indoor unit
Heat source unit below
indoor unit
Indoor
c
Indoor
Pipe sections
A+B+C+D
+a+b+c+d+e+f
A+B+C+c or
A+D+f
B+C+c or
D+f
H
H'
h
- 61 -
Branch header
cap
d e
f
Indoor Indoor
4 6
5
Unit: m [ft]
Allowable length of
pipes
P200-P300
300 [984] or less
P350-P600
500 [1640] or less
165 [541] or less
(Equivalent length 190
[623] or less)
40 [131] or less
50 [164] or less
40 [131] or less
15 [49] or less
GB