Gree Ultra Heat GMV Multi VRF Series User Manual

Ultra Heat GMV Multi VRF_Heat Recovery Serial
19
4.3.5.8 Branch selection of downstream indoor unit of mode exchanger (“B1,B2, B3”)
R410A refrigerant system
Total rated capacity of downstream indoor units: X(Btu/h)
Model
Y-type branch
X≤48500
FQ01A/A
4.3.5.9 Pipe size between mode exchanger and downstream indoor unit (“b, c, d, g”)
Total rated capacity of downstream indoor
units: X (Btu/h)
Piping size between indoor branches
Gas pipe mm(inch)
Liquid pipe mm(inch)
X≤9500
Φ9.52(3/8)
Φ6.35(1/4)
9500＜X≤17100
Φ12.7(1/2)
Φ6.35(1/4)
17100＜X≤48500
Φ15.9(5/8)
Φ9.52(3/8)
4.3.5.10 Pipe size between indoor branch and indoor unit (“e, f, i, j, k”)
Rated capacity of indoor units:
X ((Btu/h)
Size of connection pipe between indoor branch and indoor unit
Gas pipe mm(inch)
Liquid pipe mm(inch)
X≤9500
Φ9.52(3/8)
Φ6.35(1/4)
9500＜X≤17100
Φ12.7(1/2)
Φ6.35(1/4)
17100＜X≤48500
Φ15.9(5/8)
Φ9.52(3/8)
4.3.5.11 Pipe size between indoor branches (“I”)
Rated capacity of indoor units:
X ((Btu/h)
Size of connection pipe between indoor branch and indoor unit
Gas pipe mm(inch)
Liquid pipe mm(inch)
X≤9500
Φ9.52(3/8)
Φ6.35(1/4)
9500＜X≤17100
Φ12.7(1/2)
Φ6.35(1/4)
17100＜X≤48500
Φ15.9(5/8)
Φ9.52(3/8)
4.3.6 Connection method when capacity of indoor unit exceeds 48500 Btu/h
When connecting to the indoor unit with capacity of over 48500 Btu/h, it is not allowed to connect
with only one branch; it must use two branches controlled by the same main board for parallel
connection.
Parallel connection
Indoor unit communication connection
for mode exchanger
Remarks
Indoor unit No.1 and No.2
“1D1 1D2”
Parallel connection can be conducted
only as the combination of this table, it
is not allowed to otherwise connect.
Note that after the connection,
manually set the SA2 dial code of
corresponding main board, and dial
the code in the first place to number
end.
Indoor unit No.3 and No.4
“3D1 3D2”
Indoor unit No.5 and No.6
“5D1 5D2”
Indoor unit No.7 and No.8
“7D1 7D2”

Gree Ultra Heat GMV Multi VRF Series Specifications

General

Brand	Gree
Model	Ultra Heat GMV Multi VRF Series
Category	Air Conditioner
Language	English