Gree GMVVQ224WM/C-X - Page 24

GMV Heat Recovery DC Inverter VRF
20
Fig.3.3.1
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.
—
Length(m) Remarks
Total length (actual length) of connection pipe ≤1000
L1+L2+L3+L4+
…
+L12+a11+b12+
…
+d21+d22
Length between outdoor unit and
the farthest indoor unit(L)
Actual length ≤200 L
Equivalent
length
≤240
—
Length from the first indoor branch to the farthest
indoor unit
*1
≤120 L7+L8+L10+d22
Maximum height difference
between indoor and outdoor units:
H
*2
Outdoor unit at
upper side
≤100
—
Outdoor unit at
lower side
≤110
—
Maximum height difference between indoor units:h1 ≤30 h1
Length from the mode exchange box to the indoor
unit with capacity over 16kw
≤20 -
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.