Daikin LX10F10A, Service Manual

Page: 103 / 126

4-14
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Compressor installation
1. Temporarily placing the compressor
Temporarily tighten the four bolts at the compressor
legs and the one bolt at the compressor top.
2. Connecting three pipes
(Discharge, suction and injection pipes)
2-1. Place the provided packing on the discharge and
suction pipe connecting ports of the compressor.
2-2. After temporarily tightening lock nuts and flare
nuts for three pipes, finally tightening them one by
one to connect the pipes.
Use two wrenches for the final tightening of flare
nuts so as not to damage the pipes (figs. 3 & 4).
2-3. Tightening torque for lock nut and flare nut is
based on following.
Discharge pipe: 122N
・ m (1200kgf.m)
Suction pipe: 122N ・ m (1200kgf.m)
Injection pipe: 54.9N ・ m (538kgf.m)
4. Fixing the compressor
After connecting the pipes, finally tighten the
four bolts to secure the compressor legs and the
one bolt to secure the compressor top to fix the
compressor.
5. Installing DCHS2 sensor
Insert an assembled item consisting of the
DCHS2 sensor and the spring plate until the
hook clicks (Fig. 7).
Fig.7
DCHS1
Click (sound)
Hooks
(Spring plate)
6. Connecting the compressor
cables
Correctly connect the
compressor cables as per the
Terminal Wiring Procedure
attached to the compressor.
Caution
Wrong wiring will reverse
the compressor and result
in compressor damage.
Black
White
Red
Fig. 8
Wiring terminal
U
V
W