Haier AB072MRERA - Page 357

349
Medium ESP Duct Type
Indoor Unit (AD*MNERA)
Before completing the electrical connection, a gibbose connector shall be installed on the drainpipe as to provide
it with a water inlet port. Then, if any leakage exists in the piping, check it to make the water ow of the drainpipe
smooth.
■ The length difference between pipes should be limited to be less than 2:1;
■ Make the piping as short as possible;
■ Keep the min. elbow quantity;
■ Wind the heat insulating material around the ange between the master unit
and the exhaust pipe for heat insulation and sealing. Install the piping before
tting up the ceiling.
6. Cautions in Installation of Air Return Pipe & Exhaust Pipe
■ It is recommended to use the blast pipes, which can be anti-condensation
and absorb sound. (purchased at local shops)
■ Complete the installation of the blast pipes before tting up the suspended
ceiling.
■ Heat insulation should be made for the blast pipes.
■ The special exhaust port should be arranged at the place where the air is
distributed evenly.
■ An inspection hole should be left on the surface of the ceiling for future
maintenance.
5. Installation of Air Return & Air Exhaust Duct
For the choice and installation of air return port, air return pipe, air exhaust port and exhaust pipe, please consult
service personnel of Haier company. Calculate the design chart and exterior static pressure, and select the exhaust
pipe with appropriate length and shapes.
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