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22
Installation Procedure
Air Tightness Test
After finishing connection
of
refrigerant pipe, it shall perform air tightness test.
• The air tightness test adopts nitrogen tank to give pressure according to the pipe connection mode as the following figure
shown.
• The gas and liquid valve are all in close state.
In
order to prevent the nitrogen entering the circulation system
of
outdoor
unit, tighten the valve rod before giving pressure (both gas and liquid valve rods).
Low pressure piezometer
\ High pre~sure piezometer
stop valve totally closed
I
d
I
O
td
(Gas side)
ovL
VHQ
n oor - - u oor
.---
_ _
______
7
-.,..,............,....,
Meter separator
J,
--,
,--
- - -
-,
Completely tightened
I
'
I Flare part
1
I '
' I
I
!
1
,
Completely tightened :
1'
1
Dischar ing
valie
'
I I Flare part 1
L
____
_
f Manhole /:.' !Dropping valve
/ •
~::
I
, --
:~.:
I
Nitrogen tank
Indoor units
L Oufcfoor units '
stop valve totally closed
(Liquid side)
1) Pressurize for over 3 minutes at 0.3MPa (3.0 kg/cm
2
g).
2) Pressurize for over 3 minutes at 1.5MPa (15 kg/cm
2
g). A large
leakage will be found.
3) Pressurize for about 24 hours at 3.0MPa (30 kg/cm
2
g}. A small
leakage will be found.
• Check if the pressure drops
If the pressure does not drop, then pass.
If the pressure drops, then please check the leaking point.
Line
pressure gauge
··-......_
.
Tubing
bring
brazed
-✓-
Sweatj6int
\
Large
slip-on
connector _
Service
hose
---
--
When pressurizing for 24 hours, a variation
of
1 • C
in
the ambient temperature will cause a variation of
0.01
MPa(0.1 kg/cm
2
g}
in
pressure. It shall be corrected during test.
• Checking the leaking point
In
1) to 3) steps, if the pressure drops, check the leakage
in
each joint by listening, touching and using soap water etc.
to identify the leaking point. After confirming the leaking point, welding it again or tighten the nut tightly again.
Содержание
- Contents 2
- Keep this manual where the user can easily find it 3
- Read the precautions in this manual carefully before operating the unit this appliance is filled with r32 3
- Warning 3
- 1 the factory refrigerant charge of the product 2 the additional refrigerant amount charged 4
- Cautio 4
- Contains fluorinated greenhouse gases covered by the kyoto protocol 4
- Important information rega rding the refrigerant used 4
- The field 1 4
- The filled out label must be adhered in the proximity of the product charging port e g onto the inside of the stop value cover a contains fluorinated greenhouse gases covered by the kyoto protocol b factory refrigerant charge of the product see unit name plate c additional refrigerant amount charged in the field d total refrigerant charge e outdoor unit f refrigerant cylinder and manifold for charging 4
- The total refrigerant charge 4
- This product contains fluorinated greenhouse gases covered by the kyoto protocol do not vent into the atmosphere refrigerant type r32 4
- The maximum refrigerant charge amount m 5
- And connecting pipes with inert gas 9
- Cleaning 9
- Disassembly 9
- Inspection on operational state 9
- Inspection on system leakage prior to disassembly 9
- Installation as required 9
- Refrigerant 9
- Refrigerant recovery by the system 9
- Safety discharge 9
- Standards 9
- The indoor 9
- Maintenance items 11
- Air inlet 14
- Air outlet 14
- Arrangement of piping directions 14
- Compressor inside of unit 14
- Connecting piping and electrical wiring 14
- Drain hose 14
- Fi gure are the 14
- Fixing of outdoor unit 14
- More than 10cm 14
- More than 20cm 14
- More than 30cm 14
- More than 60cm 14
- Non adhesive tape 14
- Optional parts for piping 14
- Parts numbers the indoor unit should be installed at the recommended height 1 m 14
- Piping hole cover 14
- Please be subjected to the actual product purchased 14
- Rear left left rear right 14
- Saddle l s with screws connecting electric cable for indoor and outdoor drain hose heating insulating material 14
- The marks from to in th 14
- The models adopt hfc free refrigerant r32 for installation of the indoor units refer to the installation manual which was provided with the units the diagram shows a wall mounted indoor unit 14
- When installing the unit to wall roof or rooftop fix a supporter surely with nails or wires in preparation of earthquake and strong wind 2 air conditioner mounted not above and one meter away from electric equipment such as television 14
- Fire explosion 15
- Fire or explosion 15
- Fire or explosion will be caused 15
- Safety precautions 15
- Before installing the unit 16
- For conventional hfc refrigerants will not work 16
- Safety precautions 16
- Iiiii j 17
- Warning caution n 17
- Do not use large capacity fuses steel wire or copper wire damaging the unit fire smoke or explosion will be caused otherwise 18
- Install a explosion proof breaker for current leakage at the power source to avoid the risk of the electric shock 18
- Safety precautions 18
- Without a breaker for current leakage will cause risks of electric shock fire or explosion 18
- And materials that must not used with 19
- Be used exclusively with not to be used if used with r22 19
- Caution install new pipes immediately after removing old ones to keep moisture out 19
- If there is a gas leak or if the remaining refrigerant is exposed to 19
- Items to be checked 19
- Necessary tools and materials 19
- Open flame a noxious gas hydrofluoric acid may form keep workplace well ventilated 19
- Prepare the following tools and materials necessary for installing and servicing the unit necessary tools for use with adaptability 19
- Read before installation 19
- Refrigerant used by the unit to be serviced refrigerant type 2 check the symptom exhibited by the unit to be serviced look 19
- Refrigerants such as r22 will cause the refrigerating machine oil to deteriorate 19
- Some types 19
- The refrigerant circuit chloride 19
- This document 4 19
- This service handbook for symptoms relating to the refrigerant cycle 3 be sure to carefully read the safety precautions at the beginning 19
- Tools and materials that are used with r22 or r407c that can also be used with 19
- Tools and materials that may be used with with some restrictions 19
- Tools for must be handled with special care and keep moisture and dust from entering the cycle 19
- Tools that are for use with r22 and r407c 19
- Verify the type 19
- C 19 5 20
- Hig_her 20
- R22 r407c 20
- Read before installation 20
- Read before installation 21
- A 170 mm c 130mm 22
- A 222mm c 165mm 22
- C j 61 22
- Installation dimension unit mm 22
- Connection of pipes 23
- Installation procedure 23
- Liquid pipe 23
- Piping size 23
- After finishing connection 24
- Air tightness test 24
- Check if the pressure drops if the pressure does not drop then pass if the pressure drops then please check the leaking point 24
- Checking the leaking point 24
- Each joint by listening touching and using soap water etc to identify the leaking point after confirming the leaking point welding it again or tighten the nut tightly again 24
- G a large leakage will be found 24
- G a small leakage will be found 24
- Installation procedure 24
- Mpa 0 kg c 24
- Order to prevent the nitrogen entering the circulation system 24
- Outdoor unit tighten the valve rod before giving pressure both gas and liquid valve rods 24
- Pressure it shall be corrected during test 24
- Pressurize for about 24 hours at 3 mpa 30 kg c 24
- Pressurize for over 3 minutes at 0 mpa 3 kg c 24
- Pressurize for over 3 minutes at 1 mpa 15 kg c 24
- Refrigerant pipe it shall perform air tightness test the air tightness test adopts nitrogen tank to give pressure according to the pipe connection mode as the following figure shown the gas and liquid valve are all in close state 24
- The ambient temperature will cause a variation of 24
- To 3 steps if the pressure drops check the leakage 24
- When pressurizing for 24 hours a variation 24
- ______ 24
- Installation procedure 25
- Wyv ivr 25
- Installation procedure 26
- Check if there is leakage in the unit 27
- Detect 27
- Lack of refrigerant 27
- Outdoor unit 27
- Suction temperature sensor failure when the the wiring of compressor is wrong or the connection is poor 27
- Troubleshooting 27
- Australia 1300 729 948 haier com au new zealand 0800 424 372 haier co nz 28
- Conditioning 28
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