Checking regulations of disassemble or installation service quality for room air-conditioner
Some standard content:
ICS 03.080.08
Registration number: 270732010
Domestic trade industry standard of the People's Republic of China SB/T10542—2009
Checking regulations of disassemble or installationservice quality for room air-conditionen2009-12-25Promulgated
Ministry of Commerce of the People's Republic of China
Implementation on 2010-07-01www.bzxz.net
Normative reference documents
Terms and definitions
Inspection items and parameter measurement
Inspection methods and test instruments
Installation quality inspection
Disassembly and assembly quality inspection
Appendix A (informative appendix)
Installation quality user evaluation form
SB/T105422009
Appendix A of this standard is an informative appendix.
This standard is proposed by the China General Chamber of Commerce. This standard is under the jurisdiction of the Ministry of Commerce of the People's Republic of China. Foreword
SB/T10542—2009
This standard is drafted by China Household Electrical Appliances Maintenance Association, Suning Appliance After-sales Service Management Center, Guangdong Chigo Air Conditioning Co., Ltd., Beijing University of Technology, Beijing Electrical Engineering School, Hisense Kelon Electric Co., Ltd., Sichuan Changhong Electric Co., Ltd. Air Conditioning Company, and Midea Air Conditioning Home Domestic Division Marketing Company. The main drafters of this standard are: Guo Chibing, Liu Song, Jia Yonghui, Yin Xia, Zhou Bing, Li Kuixing, Ji Qun, Li Hongqi, Song Youshan, Wang Yunwei, Wang Liang, Jin Jiang.
1 Scope
Service Quality Inspection Specification for Disassembly and Installation of Room Air Conditioners SB/T10542—2009
This standard specifies the technical quality inspection content, qualified parameter range and evaluation method for the disassembly and installation of room air conditioners for household and similar purposes at the place of use.
This standard applies to speed-controlled room air conditioners that use air-cooled condensers and fully enclosed compressor motors to air condition confined spaces or have the same purpose, and one (outdoor unit) to multiple (indoor units) type air conditioners. Other types of household room air conditioners can be implemented as a reference.
2 Normative references
The clauses in the following documents become clauses of this standard through reference in this standard. For all dated references, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated references, the latest versions shall apply to this standard. GB/T156 Standard Voltage (GB/T156--2007, IEC60038:2002, IECStandardVoltages, MOD) GB/T700 Carbon structural steel
GB1002 Types, basic parameters and dimensions of single-phase plugs and sockets for household and similar purposes
GB2099
GB/T3608
Classification of high-altitude operations
GB/T3787 Safety technical regulations for the management, use, inspection and maintenance of hand-held power tools GB5306 Management rules for safety and technical assessment of special operations personnel GB/T7725-2004 Room air conditioners (ISO5 151:1994, NEQ) GB8877 Safety requirements for installation, use and maintenance of household and similar electrical appliances GB/T12325 Power quality Supply voltage deviation GB13955 Installation and operation of residual current operated protective devices GB17790-2008 Specification for installation of household and similar air conditioners GB50169
Construction and acceptance specifications for grounding devices of electrical installation engineering Technical specifications for safety of refrigeration and air conditioning operations
AQ7004
HG23014 Safety regulations for high-altitude operations in factory areas
SB/T10480 Technical specifications for disassembly, assembly and maintenance services of room air conditioners 3 Terms and definitions
The following terms and definitions apply to this standard. 3.1
Room air conditioner
roomairconditioner
A device that directly supplies treated air to a confined space, room or area. It mainly includes refrigeration systems for cooling and dehumidification, as well as air circulation and purification devices, and may also include heating and ventilation devices (which can be assembled in a box shell or designed as a component system for use together), hereinafter referred to as air conditioners. 1GB/T77252004, definition 3.1
SB/T10542-2009
Air conditioner disassembly roomairconditionerdisassembly According to the air conditioner disassembly specifications and relevant work safety requirements, professionals safely and correctly disassemble the air conditioner from the use position into subsystems or components that can be easily transported and reinstalled, take corresponding protective measures and pack all technical and management activities. 3.3
Air conditioner installation roomairconditionerinstallation Professionals, based on the specific environmental conditions and use requirements of the user, according to the relevant work safety specifications and product installation and use technical specifications, firmly and stably place or fix the air conditioner to the use position and correctly combine, connect and debug the air conditioner to achieve the complete (including technical and management) activities of its intended use function. 3.4
Installation surface
The bearing surface that supports and fixes the air conditioner, mostly refers to the wall, ground and top surface of the building. [GB/T17790—2008, definition 3.3]
Installation rack
A component that can fix the air conditioner reliably on the installation surface. [GB/T17790—2008, definition 3.4]
Installation quality
A set of specified characteristics that the air conditioner should meet after installation. 3.7
Service life of installationThe period that a qualified air conditioner should reach through correct installation and normal use by the user, generally in "years". [GB/T17790—2008, definition 3.8]
Qualified person
A person who has certain basic knowledge, technical experience and a qualification certificate for air conditioner disassembly, assembly and maintenance or a special operation qualification certificate, and is authorized to complete the disassembly, assembly and maintenance of air conditioners in a safe manner. 4 Inspection items and parameter measurement
4.1 Product acceptance
4.1.1 Unpacking acceptance of products to be installed
Whether the room air conditioner complies with GB/T7725-2004 and the relevant quality and outer packaging requirements of the manufacturing enterprise; whether the installed parts, accessories, consumables, etc. comply with the matching, quality and packaging requirements of the manufacturing enterprise and the disassembly, assembly and maintenance service enterprise. 4.1.2 Status acceptance of products to be disassembled
Check and record the production and manufacturing parameters and marking status of the product brand, model, nameplate, serial number, etc., and test and record the system operation status and observation status.
4.2 Space detection
4.2.1 Room usage determination
Determine the usage nature and base range of the cooling and heating load values according to the main purpose of the installation room. 4.2.2 Room area and indoor space net height calculation Room area calculation (m2); room indoor net height calculation (m); door and window area size (m), insulation quality and position adjustment coefficient. 2
4.2.3 Room cooling and heating load value calculation
The adaptation of the total cooling and heating load value range of the air conditioner applicable to the room. 4.3 Noise and vibration detection
Observe the noise and vibration of the indoor and outdoor units when they are running in the turned-on state. 4.4 Condensate discharge detection
4.4.1 Indoor unit
SB/T10542--2009
Observe the condensate discharge status when the air conditioner is in normal operation for a long time: the installation position and status of the outlet pipe; the slope of the drain pipe; the condition of the drain pipe connection.
4.4.2 Outdoor unit
The drainage status of the outlet pipe in the summer cooling state; the impact or obstruction of the normal life, work and normal operation of public facilities of the neighbors; the installation of the drainage riser (ceiling unit, built-in duct unit). Condensate discharge status in the winter heating state. 4.5 Refrigerant use detection
Refrigerant model, dosage value and leakage. 4.6 Installation position detection
4.6.1Indoor unit installation status
Based on the specific installation form of the indoor unit, observe the distance from the side wall, roof, ground and rear wall; horizontal condition; air conditioner coverage area; air conditioner installation position and layout; intake and exhaust airflow conditions. 4.6.2 Installation status of outdoor unit
Based on the specific installation form of the outdoor unit, check the installation status; the isolation measures when it is directly placed on the ground; the size of the space around the installation frame; the horizontal and fixed conditions; the installation position of the outdoor unit, the relative position and direction of the pipeline and adjacent equipment; avoidance of adverse environmental factors (leakage of flammable gas, strong corrosive gas, artificial strong electricity, direct effect of magnetic field, etc.); avoidance of places prone to noise and vibration; avoidance of adverse natural conditions (such as heavy smoke, strong wind and sand, direct sunlight, poor outdoor ventilation and heat dissipation or high-temperature heat source); child safety protection; environmental protection; compliance with urban appearance regulations 4.6.3 Pipeline installation status
4.6.3.1 Piping status
The visible part of the pipeline; the routing of the pipeline; the condition of the pipeline passing through the free space in the building; the anti-leakage and electrical insulation measures for the pipeline passing through the ground, wall, floor or roof; the casing or wrapping of the pipeline passing through the brick and concrete structure and the insulation and support measures; the appearance of the pipe wall.
Connection status of piping and wiring of air conditioner; Condition of extended line; Installation height difference between indoor and outdoor units, length of connecting pipe, refrigerant replenishment status; Setting status of water return bend and oil return bend. Connection status of connecting terminal; Connection status of connecting ring; Tightness and insulation strength of joints at connection. Condition of wall hole through which pipeline passes; Sealing and waterproofing status of wall hole; Appearance status of wall hole sealing. 4.6.3.2 Electrical wiring conditions
a) Power lines and electrical control lines and their connection conditions; wiring and terminal conditions; air conditioner power line settings; electrical capacity conditions; wire diameter (cross-sectional area) of connecting wires; b)
Connection conditions of indoor and outdoor unit electrical connection lines; extension line selection conditions; c)
Power lines, electrical protectors, air switches and other protective devices settings: e)
Power socket settings; electrical capacity and switch conditions; socket connection range conditions: Grounding conditions: connection conditions between grounding wire and terminal or grounding terminal; treatment conditions when there is no grounding wire in the building; resistance value detection between grounding terminal or grounding contact and metal shell of air conditioner; grounding wire special conditions; air conditioner shell leakage value detection.
4.6.4 Electronic controller conditions
Controller settings and use conditions.
SB/T10542—2009
4.6.5 Condition of installation parts
4.6.5.1 Condition of mounting frame
a) Load-bearing condition: the load-bearing capacity of the mounting surface of the indoor unit mounting frame; the weight bearing condition of the outdoor unit mounting frame; the condition of the mounting frame when the unit weight exceeds 120kg;
b) Material condition: whether the steel type and material meet the requirements of GB/T700; structural condition; c) Anti-rust measures: the anti-rust condition of the steel mounting frame and exposed fasteners; anti-loosening measures: the connection condition between the indoor unit and outdoor unit mounting surface and the mounting frame, and between the mounting frame and the building mounting surface; d)
fixed condition of the outdoor unit and the mounting frame.
4.6.5.2 Fastener condition
Fastener selection condition; the connection condition between the mounting frame and the mounting surface of the ordinary outdoor unit; the fastener installation condition of the high-power outdoor unit. 4.6.5.3 Condition of connectors
Condition of piping; wiring; connection port. 4.7 Condition of installation surface selection
4.7.1 Condition of installation surface material
Condition of installation surface material when installed on a wall or roof. 4.7.2 Condition of installation surface load-bearing
Condition of the air conditioner installation surface reserved in the building; condition of the indoor and outdoor unit installation surfaces. 4.7.3 Condition of installation surface reinforcement
Condition of reinforcement, support and vibration reduction measures when the installation surface is made of wood, metal or non-metallic structures. 4.7.4 Condition of ventilation, shock absorption and anti-corrosion
Numerical detection of ventilation, vibration and noise during normal operation; visual inspection of corrosion. 4.8 Condition of refrigerant use
Condition of refrigerant model; condition of refrigerant usage. 4.9 Air conditioner installation and use effect inspection
Check whether the parameters specified by the manufacturer such as the air conditioner operating pressure, current, inlet and outlet temperature difference meet the requirements; refrigeration, heating, air supply, dehumidification, control and other conditions. Whether the entire system meets the requirements of GB17790-2008. 4.10 Air conditioner disassembly and packaging effect inspection
4.10.1 Air conditioner, installation parts, installation accessories matching. 4.10.2 Air conditioner, installation parts, installation accessories quality. 4.10.3 Air conditioner, connector packaging, sealing. 4.11 Air conditioner disassembly or installation process inspection 4.11.1 Tools, equipment, instruments, protective supplies, spare parts equipped; whether the use of hand-held power tools meets the relevant requirements of GB/T3787.
2 Power supply monitoring:
Whether the power supply meets the requirements of GB/T156, GB/T12325, GB13955, GB50169; whether the power plug and socket meet the requirements of GB1002 and GB2099; the power connection socket, power extension cord, power fuse, air switch (all-pole circuit breaker), leakage protector.
4.11.3 Whether the installation location selection meets the relevant provisions of SB/T10480. 4.11.4 Whether the installation plan meets the relevant provisions of SB/T10480. 5 Whether the installation steps meet the relevant provisions of SB/T10480. 4.11.5
4.11.6 Whether the implementation of safe operations meets the requirements of GB/T3608, GB8877, AQ7004, HG23014, and whether the life safety of all parties concerned and the loss of property, equipment, and instruments are guaranteed during implementation. 4.11.7 Technical qualifications of the maintenance service department; technical qualifications of the operating personnel; whether the special operating personnel meet the requirements of GB5306 for personnel technical management.
4.11.8 Disassembly or installation time.
5 Inspection methods and test instruments
5.1 Instrument inspection
5.1.1 Common test instruments
SB/T10542—2009
High-pressure and low-pressure pressure gauges with gauge valves; vacuum gauges (U-type pressure gauges); semiconductor multi-point thermometers; anemometers; multimeters; ammeters; insulation resistance testers (megohmmeters/meggers); halogen detectors; spirit levels; rulers, etc. 5.1.2 Main test items and methods
5.1.2.1 Leakage test
After the air conditioner is installed and tested before commissioning, the installer must use the household electrical safety display test box to test the sensitivity of the user's leakage device;
Use instruments such as megohmmeter to check the metal shell of the air conditioner and other parts that may leak electricity; the insulation resistance to ground should be no less than 2MQ; 5.1.2.2 Refrigerant leakage test
After the air conditioner is installed and fixed, a refrigerant leakage check should be carried out before the test run. Leakage detection is mainly aimed at the interface of the indoor and outdoor unit connecting pipes and the valve port of the stop valve. Leakage detection is usually carried out using a leak detector and soapy water. 5.2 Intuitive feeling and judgment
Applicable to qualitative detection items and occasions where professional measuring equipment is not used for detection, and also applicable to the subjective experience or feelings of non-professionals (users). For example, evaluation or judgment of appearance and appearance. For the content and method of user subjective evaluation, please refer to Appendix A. 6Installation quality inspection
6.1 Check the power of the air conditioner to be installed and the room area. The cooling (heating) load of the air conditioner should be suitable for the area of the room and the use environment. Table 1 gives a quick calculation reference for the cooling (heating) load required per unit room area under different environmental conditions. Table 1 Quick calculation table of cooling (heating) load of air conditioner and different use places Different use places
Room
Computer room
Hotel room
Office
Required cooling load per unit area/W
130~170
150~190
150~190
220~340
190~290
150~190
Required heating load per unit area/W
Note: When the outdoor ambient temperature is ≤0℃, it is recommended to use it with an auxiliary heating device. Example of room area suitable for use/m2
Cooling capacity 3500W
Cooling capacity 12000W
In actual calculation, the specific structure, floor height, number of floors, orientation, thermal insulation capacity of the house, the area, position, thermal insulation capacity of doors and windows, the installation position of the indoor unit, the placement of indoor furniture and equipment, and other specific factors should also be considered, and selection and adjustment should be made based on the above reference range. When the outdoor temperature is >25℃ or the working conditions require, the cooling capacity should be calculated by reference. 6.2 Installation surface
The indoor and outdoor units of the air conditioner should be installed based on the working environment of the air conditioner provided by the user, taking into account various factors to determine the installation position of the air conditioner. Do not let the operating noise and hot air blown out by the outdoor unit interfere with the normal life of the neighbors. 5
SB/T10542-2009
6.2.1 The installation surface of the air conditioner
Should be solid and have sufficient bearing capacity. When installed on the wall or roof of a building, it must be a solid brick, concrete or other installation surface with equivalent strength, and its structural material should comply with the relevant requirements of the building code. 6.2.2 Reserved installation surface of the building
When the building has a reserved installation surface for the air conditioner, a reinforced concrete structure with sufficient strength must be used, and its load-bearing capacity for the indoor unit installation surface should be greater than 120kg/m2, and the outdoor unit installation surface should be greater than 300kg/m2, and the ventilation, noise and city appearance requirements after the air conditioner is installed must be fully considered.
6.2.3 Special structure of the installation surface
When the installation surface is made of wood, metal or non-metallic structure, and its strength is obviously insufficient (the load-bearing capacity of the outdoor unit installation surface is less than 300kg/m2, and the load-bearing capacity of the indoor unit installation surface is less than 120kg/m), appropriate reinforcement, support and vibration reduction measures should be taken to prevent affecting the normal operation of the air conditioner or causing unsafe conditions.
6.3 Electrical wiring
6.3.1 Electrical connection of air conditioner
The power line and electrical control line and their connection shall comply with the requirements of relevant national standards. The wiring and terminal of the interconnection line and control cable shall have clear corresponding identification (can be identified by color, characters or structure, etc.). The power cable and control line shall not cross or entangle with each other.
6.3.2 Connection status of air conditioner
The electrical connection line of the indoor unit and outdoor unit of the air conditioner shall not be stretched, twisted or entangled, and the wiring length shall not be changed at will. If it is necessary to extend, the wire that meets the requirements shall be used and within the maximum connection length specified for the product. The wires at the joints must be staggered and connected, and parallel connection is prohibited to avoid heating and short circuit at the joints. 6.3.3 Power supply circuit of air conditioner
The electrical connection of the air conditioner shall use a dedicated branch circuit, the capacity of which shall be greater than 2 times the maximum rated current value of the air conditioner. Check that the wire diameter (cross-sectional area) of the incoming wires shall meet the maximum power consumption of the user. 6.3.4 Air conditioner protection device
The air conditioner should be equipped with a dedicated power supply, and the power supply line should be connected according to the regulations of the air conditioner manufacturer. 6.3.5 Electrical device status of the air conditioner
The power socket should be a three-wire socket with a safety ground wire, and the socket should match the power plug of the air conditioner to be installed. Its capacity should not be less than 2 times the rated current of the air conditioner to be installed, and it should be close to the power plug of the air conditioner. Air conditioners below 3200W can choose 10A sockets, air conditioners below 4500W should choose 16A sockets, and air conditioners above 4500W should choose air switches. The installation of the air conditioner should have good grounding. The grounding wire and the wiring terminal or grounding terminal must be tightly connected, and should be locked or welded together to ensure effective grounding. When there is no grounding wire in the building, the installer has the right to refuse installation (temporarily postpone installation), or negotiate with the user to take correct and effective grounding measures before installation. There should be low resistance (not more than 4Ω) between the grounding terminal or grounding contact and the metal shell of the air conditioner. The yellow-green two-color wire can only be used for grounding and cannot be used for other purposes. 6.4 Installation position of the air conditioner
The installation operation guidance materials specified by the product shall prevail, and refer to the following location requirements. The installation position of the split type is shown in Figure 1. 6.4.1 Installation position of the wall-mounted indoor unit
Wherein (taking the floor height of 2.4m as an example): the distance A from the wall is more than 105mm; the distance B from the roof is more than 50mm; the distance C from the wall or object is more than 155mm; the distance D from the obstacle is more than 600mm; the distance E from the air outlet to the front obstacle is more than 1m; the distance F from the air inlet to the nearby obstacle is more than 0.3m. Note: A If the indoor clear height is not 2.4m, the bottom surface of the split wall-mounted indoor unit should be between 2.0m and 2.6m from the ground, while ensuring smooth indoor air circulation and convenient maintenance and operation. Use a ruler to measure. B The indoor unit should be installed horizontally. Use a level gauge and avoid subjective visual inspection. 6
Gas side pipe and liquid side pipe
Connecting wire between internal and external units
Insulation material
Drain pipe
Nylon wrapping tape
Drain pipe
Figure 1 Schematic diagram of installation position of split-type room air conditioner system 6.4.2 Installation position of floor-standing (cabinet) indoor unit The installation position of floor-standing (cabinet) indoor unit is shown in Figure 2, where: the distance A from the wall or obstruction (no air inlet surface) is 100mm or more. The distance B from the upper obstruction is more than 100mm; SB/T10542-2009
Inner wall hole guard
Use putty to seal,
Prevent rainwater from entering
Pipe clamps
Interval is 1.5m
Drain pipe
[Lifting
The distance C from the obstruction next to it (single air inlet surface) is more than 500mm (when the distance D from the rear wall or obstruction is greater than 150mm). For double-sided air inlets, the distances A and C from the walls or obstructions on both sides are more than 300mm. The distance E between the air outlet and the front obstacle is more than 1m; the distance F between the air inlet and the nearby obstacle is more than 0.3m; the angle α at the corner is about 45 degrees
Note: The indoor unit should be installed horizontally. If the user's ground is uneven, use a gasket to adjust the level; according to user requirements, anti-inverting measures can be added behind the cabinet. 7
SB/T10542-—2009
Figure 2 Schematic diagram of the installation position of the indoor cabinet of the split room air conditioner 6.4.3 Installation position of the embedded indoor unit
The installation position of the most human indoor unit is shown in Figure 3, where: the distance A from the wall is more than 1.5m; the distance B from the obstacle is more than 1.5m;
The distance C from the ceiling height is more than 0.3m; the distance D from the ground is 2.2m~2.6m.
Exhaust port
1000mm or more
Electric 300
Exhaust port
Air inlet
Figure 3 Schematic diagram of the installation position of the embedded indoor unit 6.4.4 Installation position of the air conditioner outdoor unit
The installation position of the air conditioner outdoor unit is shown in Figure 1. Among them: the distance G from the rear wall or obstacle is more than 150mm; the distance A from the wall or obstacle is more than 150mm; the distance C from the wall or obstacle is more than 600mm; it is recommended that the distance H from the front wall or obstacle is more than 3m, and the distance from green plants, adjacent doors and windows is more than 4m. Note: If there are obstacles on all four sides of the outdoor unit and the distance values are less than the specified values, installation cannot be carried out. 6.4.5 Other installation parameters of the outdoor unit
In addition to selecting the installation location and leaving a suitable distance from the air conditioner as mentioned above, the installation of the outdoor unit should also be done as follows: a) Install it in a stable place, such as a solid wall or concrete object. b) Put a protective rubber pad when there is vibration. d)
When the outdoor unit is directly placed on the ground, it should be covered with a self-made isolation metal mesh cover. The installation iron frame should leave space for hands and feet to facilitate safe operation and subsequent maintenance. d)
When the outdoor unit is installed on the ground or placed on a platform, there should be a gap of more than 50mm between the chassis of the outdoor unit and the bearing surface. The body and the bearing surface should be kept horizontal and must be fastened with bolts to prevent it from being displaced due to vibration. f) If the outdoor unit is installed under the windowsill, it should be avoided as much as possible above the windowsill. 8
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