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Installation Instructions

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Indoor Unit Installation

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Indoor unit installation

Below declared connecting pipe length to be referred as standard length for model sold without connecting pipe.

Model Pipe length
1.35T 3 Meter
1.85T 3 Meter

1. Installing the Mounting Plate

  • Decide an installing location for the mounting plate according to the indoor unit location and piping direction.
  • Keep the mounting plate horizontally with a horizontal ruler or dropping line.
  • Drill holes on the wall for fixing the plate.
  • Insert the plastic plugs to the hole, fix the mounting plate with tapping screws.
  • Inspect if the mounting plate is well fixed. Then drill a hole for piping.
Technical diagram of mounting plate installation showing wall spacing of 150mm above, left and right rear piping holes, mark on middle, and gradienter alignment

Note: The shape of your mounting plate may be different from the one above, but installation method is similar.

2. Drill a Hole for Piping

  • Decide the position of hole for piping according to the location of mounting plate.
  • Drill a hole on the wall with the help of drill machine. The hole should tilt a little downward toward outside.
  • Install a sleeve through the wall hole to keep the wall tidy and clean.
Technical schematic diagram showing a cross-section of a wall with a drilled hole for piping, illustrating a 70mm wall hole sleeve with a 5mm downward tilt towards the outside

3. Indoor Unit Piping Installation

  • Put the piping (liquid and gas pipe) and cables through the wall hole from outside or put them through from inside after indoor piping and cables connection complete so as to connect to outdoor unit.
  • Check unloading piece off in accordance with the piping direction (as shown below) and use tube bender the copper pipe.
Technical diagram showing piping direction and unloading piece for indoor unit installation

Note: When installing the pipe at the directions 1, 2 or 4, saw the corresponding unloading piece off the indoor unit base.

  • After connecting piping as required, install the drain hose. Then connect the power cords.
    After connecting, wrap the piping, cords and drain hose together with thermal insulation materials.
    IDU should be mounted perfectly on mounting plate, lock should be properly inserted.