Trane 4TXM2318BF300AA, Руководство по обслуживанию, Страница: 62 / 156

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Confirming Drainage
Tubing Permissible Length & Height Difference
Tubing Materials & Specifications
Refrigerant Filling Amount
Connecting Procedures of Refrigerant Tubing
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.
• After mounting the electrical system, do cooling operation and
meanwhile add water and check.Fill 600cc water with a hose
from the injection nozzle. Add the water slowly. Don't add water
to the motor of the drainage pump.
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.
Proceed the flare tube connecting operation to connect all the refrigerant tubes.
• Dual wrenches must be used in the connection of indoor unit tubing.
• Mounting torque refers to the right table
• Confirm the sound of the motor:
Confirm the sound of the motor of the drainage pump and meanwhile check the drainage.
Please refer to the attached manual of outdoor units.
Please refer to the attached manual of outdoor units.
Hose
Hose clamp
PVC pipe
Rigid PVC adhesive
Water outlet
100mm
below
lifting
450mm below
lifting 600mm below
under the ceiling
drain connection
injection nozzle
Model 4MXE2309BF0W0AA 4MXE2312BF0W0AA
Tubing Size (mm)
Gas pipe Ø9.52 Ø9.52
Liquid pipe Ø6.35 Ø6.35
Tubing Material Phosphor deoxybronze seamless pipe (TP2) for air conditioner
Outer Diameter of Tubing (mm) Mounting Torque (N-m) Increase mounting Torque (N-m)
Ø6.35 11.8(1.2kgf-m) 13.7(1.4kgf-m)
Ø9.52 24.5(2.5kgf-m) 29.4(3.0kgf-m)
Ø12.7 49.0(5.0kgf-m) 53.9(5.5kgf-m)
Ø15.88 78.4(8.0kgf-m) 98.0(10.0kgf-m)
wrench
Connecting
circular
terminals:
correct
pressing
wrong
pressing
terminal tier
pressing clip