Connect T Hedrainpipe - Carrier 40MB*D Installation Instructions Manual

Table 9-1
144_-- 176 kgf.cm
(14.2 -_17.2 N.m)
333---407 kgf.cm
(32.7 -_39.9 N.m)
504 -_616 kgf.cm
(49.5"---60.3 N.m)
630--_770 kgf.cm
(61.8"--_75.4 N.m)
0.327in/8.3
0.472in/12.0
0.606in/15.4
0.732in/18.6
0.343in/8.7
0.488in/12.4
0.622in/15.8
0.748in/19.0
90°i4
Expel the air with a vacuum pump(Refer to Fig.9-3)
(Please refer to its manual for the method of using the
manifold valve)
Loosen and remove the nuts of service valves A and B,
and connect the charge hose of the manifold valve with
the maintenance terminator of service valve A. (Be sure
that service valves A and B are both closed)
• Connect the joint of the charge hose with the vacuum
pump.
• Open the Lo-lever of the manifold valve completely.
Turn on the vacuum pump. At the beginning of pumping,
loosen the nut of service valve B a little to check whether
the air comes in (the sound of the pump changes, and
the indicator of compound meter turns below zero). Then
fasten the nut.
When the pumping has finished, close the Lo-lever of the
manifold valve completely and turn off the vacuum pump.
When you have pumped for over 15 minutes, please
confirm that the indicator of multimeter is on -1.0X10-_Pa
(-76cmHg)
Loosen and remove the nuts of service valves A and B to
open service valve A andB completely, then fasten nuts.
Disassemble the charge hose of service valve A, and
fasten the nut.
ManifoEd va(ve
MultFmeter Pressure meter
-76 cmHg
Lo-lever HHever
Charge hosem=,.- Charge hose
_ Vacuum pump
Fig.9-3
_L CAUTION
Both service valves should be open before test operation.
Each air conditioner has two service valves of different
sizes.(Refer to Fig.8-4) Flare nut
Stopper
Cap
9.2 Check the Leakage
Check all the joints with the leak detector or soap water. (Refer
Fig.9-5 as a reference illustration)
in the chart
A ...... Lo-stop valve
B...... Hi-stop valve
C,D..Joints of the connecting pipe to the indoor unit.
Check-point of indoor unit _C
Check-point of out!!or uni_J
Fig.9-5
9.3 Insulation
Be sure to completely insulate all the exposed parts of the flare
pipes.
Incomplete insulation may cause condensation.
10. CONNECT T HEDRAINPIPE
• Install the drainpipe of the indoor unit
• Use a polyethylene tube as the drainpipe (out-dia.1.14-1.22in
/29-31mm, in-dia.0.984in/25mm).
• When extending the drainpipe,tighten the connector with
water-proof tape to prevent leakage.
• Lean the drainpipe down toward outdoor (outlet-side) at a
degree of over 1/ 50 to keep water from flowing back. And
please Avoid any bulge.
• Do not drag the drainpipe roughly. One support point should
be set every 3.28~4.92ft/1~1.5m to prevent the drainpipe
from yielding. Or tie the drainpipe with the connecting pipe to
fix it.
If the outlet of the drainpipe is higher than the body's pump
joint, the pipe should be arranged as vertically as possible.
And the lift distance must be less than 21.65in!550mm,
otherwise the water can not be lifted completely and may
cause overflow.(Only available for the unit with a pump.)
The end of the drainpipe should be over 1.969in/50mm higher
than the ground , and do not immerse it in water. If you
discharge the water directly into sewage, be sure to make a
U-form aqua seal by bending the pipe up to keep the foul gas
entering the house through the drain pipe.
Valve body
Valve stern
Fig.9-4
]8