Testing Of Drain Piping; Electrical Installation - Gree GMV-ND07PLS/A-T(U) Service Manual

◆Secure a downward gradient of 1/100 or more for the drain pipe. To accomplish this, mount
supporting brackets at an interval of 1 -1.5 m (39-3/8~59in.).

5.4 Testing of Drain Piping

◆ After piping work is finished, check if drainage flows smoothly.
◆Shown in the figure, Add approximately 1liter of water slowly into the drain pan and check
drainage flow during COOL running.

6 Electrical Installation

◆The wiring must be in accordance with the local rules.
◆Rated supply voltage and special circuit for air conditioner must be used.
◆Do not pull the power cord forcefully.
◆All the electric installations must be carried out by specialist technicians in accordance with the
local laws, rules and these instructions.
◆The diameter of flexible wire should be wide enough. Replace the damaged power cord and
connecting wire with special flexible wire.
◆The earthing shall be reliable and connected to the special earthing device on the construction.
The installation must be done by specialist technicians. The leak protection switch and air switch with
enough capacity must be installed. The air switch shall have both the magnetic tripping and thermal
tripping functions to ensure protection against the short circuit and overload.
● Earthed Requirements
◆The air conditioner belongs to I type electric appliances. The reliable earthed action is a must.
Multi Variable Air Conditioners Indoor Unit for North America
103
Unit：mm (in.)
Unit：mm (in.)