Mitsubishi MSZ-YK09VA-H1, Руководство по эксплуатации

Страница: 51 / 54

Installation instructions
3. Installation of outdoor unit
Connection between indoor and outdoor unit
Don’t make wrong connection. The air conditioner can’t operate
normally in case of wrong connection.
Tighten the screws to avoid looseness.
Pull the wires slightly to verify whether they are tightened.
Fix the service board of outdoor unit well. Otherwise, fire and electric shock
may result from entry of dust and moisture.
4.Complete indoor/outdoor unit connection and perform
test run
First, align with the center, tighten the pipe nut with hand until you
can’t proceed.
Refer to the following torque table, use two wrenches to tighten the
indoor unit side connection pipe connector. Take care not to tighten
it excessively to avoid damaging the flared part.
Heat insulation and wrapping band
Pipes and valves connected at side of indoor unit should be heat
insulated.
All pipes starting from the outdoor unit’s pipe entrance shall be wrapped
with band
E
.
As the same connection with that of indoor unit, connect the pipe to
the outdoor unit stop valve (two or three-way) pipe connector.
4-2 Vacuumizing and leak detection test
The mounting surface of the air conditioner should be solid enough
to bear the weight. The bearing capacity shall not be lower than
actually born weight (at least 200kg/m2).
The mounting surface is decorated with wooden, metallic or non-
metallic structure. Corresponding measures like reinforcement,
support and anti-vibration shall be taken in case of insufficient
strength.
Installation rack shall be such a fixture that the air conditioner can
be fixed securely on the mounting surface.
Confirm the diameter and depth of the mounting hole for the fixture
based on hardness of the mounting surface material, select applicable
expansion bolt to ensure unit’s stability, firmness and reliability.
Try to avoid rainy days, windy and snowy days as well as thundery
days during installation. If necessary, relevant measures shall be
taken to protect people from injury.
·
Connect the wires from the indoor unit to the terminal block
correctly.
Take care not to enable the wires to contact pipe.
·
·
·
·
·
·
·
·
·
Indoor unit piping
Connect liquid and gas pipes to the unit.
·
·
Outdoor unit connection
Tighten the connector with the same torque as that of indoor unit by
torque wrench or common wrench.
·
①
①
②
②
·
·
Fix the end of band
E
with tape.
If the pipe goes through ceiling, toilet or other locations with high
temperature and high humidity, please wrap the pipe with commercially
available heat insulated band to avoid condensation.
50
Note
Note
Note
When manifold gauge is recommended to be used
Remove the stop valve;s service cap at the gas.pipe of outdoor unit
(Vacuumizing can't be done without removing the cap)
Connect the refrigerant pipe(liquidnd gas) between the indoor and out door unit
Connect the manifold valve with gauge and manifold gauge to the stop
valve's service port at the gas pipe of outdoor unit
Run the manifold gauge(vacuumize the pipe over 15 minutes)
Check the vacuum with the manifold valve with gauge, close the valve and stop the pump.
Remove the manifold valve with gauge from the stop valve service port quickly.
Open all the stop valves at liquid and gas pipes, or performance reduction or failure may result.
It's unnecessary to add refrigerant if pipe
length is within the scope.
It's necessary to add proper refrigerant
if pipe length exceeds the scops
Screw the service cap securely.
Screw the caps of two stop valves securely.
Make a leakage detection test.
Vacuumizing
Stop valvev
Liquid pipe
hexagon
wrench
Gas pipe
Cap
Stop valve
Service port
Manifold valve
with gauge
Connection
pipe
Manifold gauge
4-1 Piping connection
When installing the unit, securely connect the refrigerant pipes
before starting the compressor.
!
WARNING
·
Unscrew terminal screws
Terminal block
Line
Be sure to use this wire clip to fix indoor/outdoor unit’s
connection wire
A
in good order.
Fixed screw
A
Pipe diameter
Torque tightened
mm
6.35
9.52
12.7
Inch
1/4
3/8
1/2
N
·
m
13.7-17.7
34.3-41.2
49.0-56.4
kgf
·
cm
140-180
350-420
500-575