157
MINI 4-way cassette
type indoor unit
Lifting Drainpipe
The drainpipe can be lifted 360mm.
When the down gradient of the drainpipe can't be
ensured, after upright lifting, the drainpipe is in the
down slope.
hose
hose clamp
attached heat
insulating material
heat insulating
material
horniness pvc pipe
Confirming Drainage
The drainage should be confirmed during the test run to make sure that there
is leakage at the connection.
The confirmation of drainage should be also performed during the installation
in the winter season.
Fill water from the outlet or the specified position and confirm the drainage.
Fill 600cc water with a hose from the outlet or the specified location on the
machine. Add the water slowly. Don't add water to the motor of the drainage
pump.
100mm
below
lifting
360mm below
lifting 600mm below
under the ceiling
■
After mounting the electrical system, do cooling operation and meanwhile
add water and check.
■
If the electrical installation hasn't been completed, pull out the terminal(2P)
of the floater switch on the electrical cabinet. After confirming the drainage,
connect the terminal of the floater switch and run the drainage pump for 5
minutes until it stops automatically.
■
Confirm the sound of the motor:
Confirm the sound of the motor of the drainage pump and meanwhile
check the drainage.
joint of drainpipe
Tubing Permissible Length & Height Difference
Please refer to the attached manual of outdoor units.
Refrigerant Filling Amount
Add the refrigerant according to the installation instruction of outdoor unit. The addition of R410A refrigerant must
be performed with a measure gage to ensure the specified amount while compressor failure can be caused by
filling too much or little refrigerant.
Tubing Materials & Specifications
Please refer to the attached manual of outdoor units.
Model
AB072~092MCERA(M)
AB122~182MCERA(M)
Tubing Size (mm)
Gas pipe
Ø9.52
Ø12.7
Liquid pipe
Ø6.35
Ø6.35
Tubing Material
Phosphor deoxy bronze seamless pipe (TP2) for air conditioner
