Kaysun KPDHF-71 DN3.0, Installation Manual

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installation manual
19
Bend
S shap
●
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 maintenance terminator nut of stop 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 -1.0X105Pa (-76cmHg)
●
Loosen and remove the quadrangle cover of stop valves A
and B to open stop valve A and B completely, then fasten
them.
●
Disassemble the charge hose from the repair-mouth of stop
valve A, and fasten the nut.
Manifold valve
The drain pipe of indoor unit must be heat insulated, or it will
condense dew, as well as the connections of the indoor unit.
Hard PVC binder must be used for pipe connection, and make
sure there is no leakage.
With the connection part to the indoor unit, please be noted not
to impose pressure on the side of indoor unit pipes.
When the declivity of the drain pipe downwards is over 1/100,
there should not be any winding.
The total length of the drain pipe when pulled out traversely
shall not exceed 20m, when the pipe is over long, a prop stand
must be installed to prevent winding.
The height difference between drain pipe end to ground or drain
channel should be more than 50mm, and the drain pipe cannot
put in water. If the drain water was discharged to ditch directly,
the drain pipe must be upward bent into a U type water seal to
avoid odor into the interior through the drain pipe.
If the negative pressure of drain pan outlet is high, there must
be a water elbow in drain pipe to avoid poor drain or blow water
for negative pressure. Please install the water elbow as figure
4.4 shown, each unit should install a water elbow. There should
be a plug in water elbow for convenient cleaning.
Refer to the figures on the right for the installation of the pipes.
Fig.9-5
1.5M~2M
All the stop valves should be opened before test operation.
Each air conditioner has two stop valves of different sizes on
the side of the outdoor unit which operate as Lo-stop value
respectively. (Refer to
Fig.9-6 )
Put as deep as possible
(about 10mm)
Fig.10-1
Valve stem
Fig.9-6 Downward declivity
lower than 1/100
VP30
Fig.10-2
10. CONNECT THE DRAIN PIPE
Install indoor unit drain pipe
The outlet has PTI screw bread, For 71T1 to 160T1 indoor unit,
please use sealing materials and pipe sheath (fitting) when
connecting PVC pipes. For 200T1 to 280T1 indoor unit, please
use Water connecting pipe
and Adhesive tape for seal when connecting
drain pipes.
H
H: 2''(50mm) or more.
H
Fig.10-3
Caution: While connecting the drain pipe, please use the drain
pipe connect to the secondary water holder simultaneously, for
avoiding there are little condensate water deposit in the unit when
the machine is running under the high humidity working condition.
CAUTION
Flare nut
Stopper
Cap
Valve body
Multi-meter
Pressure meter
-76 cmHg
Hi-lever
Lo-lever
Charge hose
Charge hose
Vacuum pump
Lo-lever