Install The Connecting Pipe; Connect The Drain Pipe - Bosch Climate 5000 VRF FSC-B Series Installation & User Manual

5. INSTALL THE CONNECTING PIPE

CAUTION
Do not let air, dust, or other impurities fall in the pipe system during
the time of installation.
The connecting pipe should not be installed until the indoor and
outdoor units have been fixed already.
Keep the connecting pipe dry, and do not let moisture in during
installation.
5.1 The Procedure of Connecting Pipes
1. Measure the necessary length of the connecting pipe, and connect it using
the following process
1) Connect the indoor unit at first, then the outdoor unit.
a. Bend the tubing in the correct manner and do not damage the pipe.
CAUTION
1. Oil the surfaces of the flare pipe and the joint nuts with oil, and
tighten it with 3~4 rounds with hands before fasten the flare nuts.
2. Be sure to use two wrenches simultaneously when you connect or
disconnect the pipes.
2) For Pressure testing and vacuum testing, refer to the outdoor unit
installation manual.
Pipe Bending.
■
• The bending angle should not exceed 90°.
• Longer radius bends are preferred to help the flow of refrigerant.
• Do not bend the pipe more than three times.
Ensure you use at least 9mm wall thickness insulation. For larger
pipes thicker insulation may be required. (More than 9mm thick)
Use oil
2. Pipe Support
1) Drill a hole in the wall (suitable just for the size of the wall conduit,
90mm in general), then fit on the fittings such as the wall conduit and
its cover.
2) Cover the connecting pipe and the cables together tightly with binding
tapes. Do not let air in, which will cause water leakage by condensation.
3) Pass the connecting pipe through the wall conduit from outside.
Be careful of the pipe not to do any damage to the tubing.
3. Connect the pipes.
4. Be sure of no leakage by checking it with leak detector or soap water.
5. Cover the joint of the connecting pipe to the indoor unit with the soundproof/
insulating sheath (fittings), and cover it well with the tapes to prevent
leakage.
Climate 5000 VRF
Fig. 5-1
Make the ends straight
Fig. 5-2
INSTALL THE CONNECTING PIPE | 7

6. CONNECT THE DRAIN PIPE

6.1 Install the drainpipe of the indoor unit
The outlet has PTI screw bread, Please use sealing materials and pipe
sheath (fitting) when connecting PVC pipes.
CAUTION
The drain pipe of the indoor unit must be heat insulated, or it will
•
produce condensate, as well as the connections of the indoor unit.
Hard PVC tape must be used for pipe connection, and make sure
•
there is no leakage.
With the connection part to the indoor unit, please note not to impose
•
pressure on the side of indoor unit pipes.
The drain pipe should have a slope decline of 1/100.
•
The total length of the drain pipe when laid out traversely should not
•
exceed 20m, when the pipe is over long, a bracket must be installed
to prevent damage.
Refer to the Fig. 6-1 for the installation of the pipes.
•
0.8~1.0m
Insulation material
Lean Downward
over 1/100
Put as deep as possible
(about 10cm)
Downward declivity
lower than 1/100
6.2 Drainage test
Check whether the drainpipe is clear.
•
New built house should have this test done before covering the ceiling.
•
Fig. 6-1
Bend
Fold
Fig. 6-2
VP30
Fig. 6-3
6720866023 (2017/11)