Gree GMVVQ224WM/C-X Owner's Manual page 24

L11: Length from the first branch to the nearest IDU;
L12: Length from the first branch to the farthest IDU;
Equivalent length of branch of IDU is 0.5m.
Total length (actual length) of connection pipe
Length between outdoor unit and
the farthest indoor unit(L)
Length from the first indoor branch to the farthest
indoor unit
*1
Maximum height difference
between indoor and outdoor units:
H *2
Maximum height difference between indoor units:h1
Length from the mode exchange box to the indoor
unit with capacity over 16kw
NOTES:
(1) Note 1: Normally, the pipe length from the first indoor branch to the farthest indoor unit is
40m. Under the following conditions, the length can reach 120m:
1) Actual length of pipe in total:
L1+L2×2+L3×2+L4×2+...+L9×2+a11+b21+...+d21+d22≤1000m;
2) Length between each IDU and its nearest branch:
a11,a12,b21,b22,b31,c11,d11,d21,d22≤40m
3) Difference between the pipe length from the first indoor branch to the farthest indoor unit
and the pipe length from the first indoor branch to the nearest indoor unit: L12-L11≤40m.
—
Actual length
Equivalent
length
Outdoor unit at
upper side
Outdoor unit at
lower side
GMV Heat Recovery DC Inverter VRF
Fig.3.3.1
Length(m)
L1+L2+L3+L4+...+L12+a11+b12+...
≤1000
≤200
≤240
≤120
≤100
≤110
≤30
≤20
20
Remarks
+d21+d22
L
—
L7+L8+L10+d22
—
—
h1
-