Gree NCHS1D Owner's Manual page 18

(2) Install the Mode Exchange Box temporarily
Assemble suspension bolt on the expansion bolt, attach the hanger bracket to the suspension
bolt. Be sure to fix it securely by using a nut and washer from upper and lower sides of the hanger
bracket. The washer fixing plate will prevent the washer from falling.
NOTES!
① Before operation, please prepare all pipelines (connection pipe, drainage hose) and wires
(connection wire for wired controller, connection wire for Mode Exchange Box).
② When drilling holes on ceiling (air return outlet or air outlet), you can need to reinforce the
ceiling to prevent vibration. For details, please consult user or builder.
③ If the strength of the ceiling is not good, please install a beam bracket, and then put the unit on
the beam bracket.
(3) Adjust the unit to the right position
(4) Check the level of the unit
After the Mode Exchange Box is installed, remember to check the horizontal status of the whole
unit. It should be horizontal from front to back and slant 1% from left to right, following the drainage
direction.
Fig.4.1.11
Fig.4.1.12
14
GMV6 HR Mode Exchange Box
Unit：mm