Some standard content:
JB/T8544—1997
This standard is proposed and managed by the Technical Committee for Heating and Ventilation Equipment of the Technical Committee for Standardization of Refrigeration Equipment of the Ministry of Machinery Industry. The drafting units of this standard are: Beijing Air Conditioner Factory and Hefei General Machinery Research Institute of the Ministry of Machinery Industry. The main drafters of this standard are: Ma Ruiduan, Lv Ming, Zhang Mingsheng, Xia Dongpei, Yang Bailin, Wang Liguo, Zhou Hongwei, Yu Ximei and Sheng Jie. 1006
1 Scope
Machinery Industry Standards of the People's Republic of China
Integrated mechatronic air conditioning units
JB/T 8544-1997
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of integrated mechatronic air conditioning units.
This standard applies to integrated mechatronic air conditioning units (hereinafter referred to as units), and other mechatronic air conditioning units may also be adopted for reference.
2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB4013.1-85 General requirements for control circuit electrical appliances and switch components GB7251--87 Low-voltage complete switchgear
GB9813--88 General technical conditions for micro-numerical electronic computers GB/T14294-93 Combined air-conditioning units
3 Terms
This standard adopts the following definitions.
3.1 Integrated mechatronic air-conditioning unit
An integrated air-conditioning unit that organically combines the control device that comprehensively uses computer technology, information technology and control technology with the functional sections of the unit.
3.2 The control device of the unit
It is composed of the hardware and software of the direct digital controller, the power distribution device, sensors, transmitters and actuators, etc. It can independently complete the automatic collection, processing and transmission of the unit status parameters and process parameters. It is a control device with the characteristics of high-precision control of parameters such as temperature and humidity, energy-saving operation, and no need for on-site duty.
3.3 Test condition of the control device
A test condition of the control device and its related components. In this condition, the relevant main circuit and its related auxiliary circuit have been connected and powered on, and are ready or in the process of operating the electrical equipment. 4 Type and basic parameters
Model representation
Product category code
1 Specification code: Rated air volume (10°m~/h) Integrated mechatronic air conditioning unit code Approved by the Ministry of Machinery Industry of the People's Republic of China on April 15, 1997 and implemented on January 1, 1998
4.2 Basic parameters
JB/T8544-1997
a) The rated voltage of the power supply is three-phase 380/220V, five-wire system, and the rated frequency is 50Hz. b) The basic specification parameters of the unit shall comply with the provisions of 4.2 of GB/T14294-93. 5 Technical requirements
5.1 Basic requirements
5.1.1 The unit shall be manufactured according to the drawings and technical documents approved by the prescribed procedures. 5.1.2 The basic specifications and parameters of the unit shall comply with the provisions of 4.2. 5.1.3 When the power supply voltage does not exceed 90% to 110% of the rated value, the unit should be able to start and work normally at all speeds. 5.1.4 In addition to meeting the relevant provisions of 5.1.3 in GB/T14294-93, the unit structure should also meet the following requirements: a) There should be a shock-isolating pad between the control cabinet and the box. b) The control cabinet door should rotate flexibly and open and close reliably within a range of not less than 90°, and a door lock should be installed. c) Shielded wires should be used for signal lines.
5.1.5 The control device should be made of materials that can withstand certain mechanical, electrical and thermal stresses. The material should be properly surface treated or use suitable anti-corrosion materials. The structure of the control cabinet and its electrical installation and circuit layout must be safe and reliable, easy to operate and easy to maintain. 5.1.6 The requirements for control circuit electrical appliances and switch elements should comply with the provisions of GB4013.1. 5.1.7 The external wire terminals should comply with the provisions of 6.1.3.1 in GB7251--89. 5.1.8 The circuit in the control device shall comply with the provisions of 6.5.5 of GB7251--89. 5.1.9 The surface of the components made of ferrous metal shall be treated with rust removal and anti-corrosion. 5.1.10 The parts, components and materials used in the unit shall comply with the provisions of relevant national standards. 5.2 Performance requirements of the unit
5.2.1 The temperature and humidity control accuracy of the unit at the control point of the measured room shall comply with the provisions of Table 1. Table 1
More advanced
±1℃
±5%RH
±2%RH
5.2.2 The air conditioning thermal performance of the unit shall comply with the provisions of Chapter 5 of GB/T14294-93. 5.2.3 It has the functions of energy-saving working condition zoning throughout the year and its automatic judgment and conversion to achieve full-automatic operation throughout the year. 5.2.4 It has automatic antifreeze protection and alarm functions. 5.2.5 When the filter exceeds the set final resistance due to excessive dust, an automatic alarm shall be sounded. 5.2.6 Installation requirements: The opening angle of the valve or other actuator shall be consistent with the control signal. The closing, opening and adjustment of various valves or other actuators shall be flexible and convenient.
5.3 Functional requirements of the unit
5.3.1 Through the functions of automatic zoning, judgment and conversion of energy-saving working conditions throughout the year, high-precision control, energy-saving optimization control and program control of parameters such as temperature and humidity throughout the year are achieved. It has a computer standard interface and communication protocol, and can easily form a distributed control system. 5.3.2 The direct digital controller shall comply with the relevant provisions of GB9813. It should have the functions of measurement, display, alarm, integration and control, strong anti-electromagnetic interference ability, and can be installed in the same control cabinet with weak current control instruments and strong current distribution appliances; it should have strong anti-mechanical vibration ability, and can be directly installed in the air-conditioning unit, and meet the following functions: a) It has the functions of automatic operation and energy-saving optimization throughout the year; 1008
JB/T8544-1997
b) It can measure, process, display and alarm the state parameters and process parameters of the air-conditioning unit in real time; c) It can modify and display the relevant set values and control parameter values online; d) It can automatically adjust the temperature, humidity, pressure and pressure difference according to the control requirements of parameters such as temperature, humidity, pressure and pressure difference. c) It has reliable isolation measures, can effectively prevent accidents such as lightning strikes, and has the ability to quickly recover from faults; f) It has data power-off protection and self-starting functions; g) It has a self-correction function, which can automatically eliminate measurement errors caused by amplifier drift and other reasons during long-term operation; h) It has perfect communication functions and can form a distributed control system through interfaces that meet international standards; i) It has a variety of anti-interference and voltage stabilization measures, and can work normally for a long time in harsh environments with power supply voltage fluctuations, high-order harmonics and severe electromagnetic interference;
i) The unit can be switched manually and automatically, and the operation is simple. 5.4 Appearance requirements
5.4.1 The outer surface of the unit should be free of obvious scratches, rust spots and indentations, the surface should be smooth, the spray layer should be uniform, the color should be consistent, and there should be no flow marks, bubbles and peeling. 5.4.2 The unit should be cleaned and there should be no debris in the box. 6 Test methods
6.1 General requirements
The unit shall be tested as a whole in accordance with the provisions of 6.1 of GB/T14294-93. 6.2 Test conditions
6.2.1 The test shall be conducted when the air-conditioning system is reasonably designed, operates normally, and does not affect the performance of the unit. 6.2.2 The cooling capacity and heating capacity tests shall comply with the relevant provisions of 6.2 of GB/T14294--93, and the on-site test shall comply with the relevant provisions of E1 in Appendix E of GB/T14294-93. 6.2.3 The instruments used in the test shall comply with the provisions of Table 2. 6.3 Test methods
6.3.1 Start-up operation test
6.3.1.1 When the deviation of the applied voltage does not exceed ±10% of the rated voltage, the unit shall be started three times at the high and low speed gears of the fan, and each time it shall run stably for 5 minutes, and then the power supply shall be cut off until it stops completely. Each start-up shall be conducted after the motor stops completely. 6.3.1.2 Check whether the parts are loose, noisy, hot or other abnormal phenomena. 6.3.1.3 The unit should be started up at the maximum and minimum air volume. 6.3.2 Air conditioning thermal performance tests
should comply with the relevant provisions of 6.3 of GB/T14294-93. 6.3.3 Control device performance test
6.3.3.1 Temperature and humidity control accuracy test
a) The test is carried out by on-site actual measurement. b) During the on-site test, the air inlet state range of the test unit is dry bulb temperature -10℃～40C, relative humidity 20%～99%RH. c) In the controlled room, avoid direct radiation from heat sources, and in an area with relatively stable airflow organization, use a thermometer and hygrometer to test and record. d) The test and recording time is 72 consecutive hours, and the temperature and humidity fluctuation range should not exceed the provisions of 5.2.1. e) The test of the control effect of different working conditions should be completed from the two aspects of automatic zoning, judgment, conversion and control accuracy of different working conditions, and through a combination of system actual measurement and simulation. 6.3.3.2 Automatic judgment and automatic conversion test of working conditions The computer detection and control system can accurately implement the automatic zoning judgment and automatic conversion of the best energy-saving working condition according to the working condition parameters required by the system design.
Measurement parameters
Temperature and humidity
Measuring instruments
Glass mercury thermometer, resistance thermometer, thermocouple thermometer
Micromanometer (inclined, compensated or automatic sensing type)
U-shaped mercury manometer or one of equal accuracy
Pressure gauge
Steam pressure gauge
Atmospheric pressure gauge
Flowmeter, gravimetric or volumetric liquid dosing meter
Standard nozzle
Pitot tube
Anemometer
Voltmeter
Ammeter
Power or voltage-ammeter
Tachometer
Sound level meter
Contact measuring instrument
Temperature and humidity recorder
1) When measuring dynamic pressure, the minimum pressure difference should be 25Pa. 2) Refers to the percentage of the measured value.
JB/T8544—1997
Measurement items
Dry
Wet-bulb temperature of air inlet and outlet during hot and cold performance test and inlet and outlet temperature of heat exchange equipment
Other temperatures
Air static pressure and dynamic pressure
Water resistance, steam pressure drop
Steam supply pressure
Atmospheric pressure
Water flow of heat exchanger, steam condensate
Sectional wind speed uniformity||t t||Electrical parameters of fan input
Fan speed
Unit noise
Fan section vibration speed
Condensate volume, etc.
Temperature and humidity accuracy
6.3.3.3 Test unit of electric valves (including water valves, steam valves and air valves)
Instrument accuracy
GB/T14294
GB2624
GB8070 Appendix B
GB 9068
Apply the specified voltage to the actuator, and then continuously adjust the signal voltage. The opening angle of the valve should be consistent with the signal voltage. 6.3.3.4 Alarm system test
a) When simulating winter working conditions, stop supplying water to the heat coil. When the antifreeze switch is activated, the system should give an alarm in time, and automatically stop the fan operation, close the fresh air valve and exhaust valve, and open the heat coil water supply regulating valve. b) During the inspection, according to the filter characteristics, set the differential pressure switch to the corresponding protection action value. When the filter resistance value is artificially increased, the system should automatically alarm and continuously control.
c) During the whole machine operation test, first put the switch in the control cabinet to the manual position for manual operation test. When the manual operation is normal, put the switch to the automatic position and conduct the automatic operation test. The automatic operation test is carried out according to the functional requirements of the unit. d) The visual inspection method for installation should comply with the provisions of 5.2.6. 1010
7 Inspection rules
7.1 Inspection is divided into factory inspection and type inspection. 7.2 See Table 3 for inspection items.
7.3 Factory inspection
JB/T8544—1997
Name of inspection items
Inspection of main components
Safety requirements
Start-up and operation
Pressure resistance of pipes
Air volume and total pressure
Power input
Air leakage rate
Cooling capacity and heating capacity
Water flow through water retaining plate| |tt||Filtration efficiency and resistance
Condensation test
Water removal capacity
Surface wind speed uniformity
Control temperature and humidity accuracy
Automatic judgment and automatic conversion
Electric valve test
Alarm system test
Importance
7.3.1 The factory inspection of the unit shall be carried out according to items 1, 2, 3, 4 and 5 in Table 3. For the inspection of items 6 and 7 in Table 3, at least one unit shall be randomly inspected for every 20 units. If the annual output is less than 20 units, one unit shall be randomly selected. 7.3.2 Each unit must be inspected and qualified by the inspection department and attached with a quality inspection certificate before it can be shipped. 7.4 Type test
7.4.1 Type test shall be carried out for the unit in any of the following cases: a) when a new product is finalized;
b) when changes in the structure, manufacturing process and materials of the finalized product affect the performance of the product; c) when production is resumed after more than one year of suspension; d) when batch production is carried out once every three years; e) when the national quality supervision agency puts forward type test requirements. 7.4.2 The unit type test shall include all items in Table 3. 7.5 Judgment rules
JB/T 85441997
For a sample taken, if two main items or two general items in the inspection items are unqualified, another sample shall be inspected. If it is unqualified again, the batch of units shall be judged as unqualified products. 8 Marking, packaging, transportation and storage
8.1 Marking
8.1.1Each unit shall have a product label and be fixed in a conspicuous position on the front. The label shall include the following contents: a) Unit name and model;
b) Basic parameters of the unit (rated air volume, total pressure, steam supply, rated voltage, current, power and speed, etc.); c) Unit dimensions (length × width × height); d) Unit weight;
e) Factory number;
f) Factory date;
g) Manufacturer name.
8.1.2 The unit shall indicate the working status, i.e. the rotation direction, open, close and other signs, and shall be accompanied by an electrical circuit diagram. 8.2 Packaging
8.2.1The unit shall be stable in the packaging box, and the packaging box shall be firmly and tightly bound. 8.2.2 The packing box should contain the packing list, product certificate and product installation and use manual and other relevant technical information. 8.2.3 The packing box should have packing marks that are not easy to fade, including the following: a) Product name and model;
b) Product net weight and gross weight;
c) Box size (length × width × height); d) Total x boxes, the ×th box;
e) Packing date;
f) Arrival station (port) and consignee;
g) Departure station (port) and consignor.
8.2.4 The packing box should have storage and transportation marks such as moisture-proof, rainproof, no rolling and careful handling. 8.3 Transportation and storage
8.3.1 The unit should not be hit, squeezed, thrown or exposed to rain and snow during transportation. 8.3.2 The unit should be stored in a moisture-proof, rain-proof and fire-proof place, and there should be no corrosive gas around it.2. The computer detection and control system for automatic judgment and automatic conversion of working conditions can accurately implement automatic partition judgment and automatic conversion of the best energy-saving working conditions according to the working condition parameters required by the system design.
Measurement parameters
Temperature and humidity
Measuring instruments
Glass mercury thermometer, resistance thermometer, thermocouple thermometer
Micromanometer (inclined, compensated or automatic sensing type)
U-shaped mercury manometer or one of equal accuracy
Pressure gauge
Steam pressure gauge
Atmospheric pressure gauge
Flowmeter, gravimetric or volumetric liquid dosing meter
Standard nozzle
Pitot tube
Anemometer
Voltmeter
Ammeter
Power or voltage-ammeter
Tachometer
Sound level meter
Contact measuring instrument
Temperature and humidity recorder
1) When measuring dynamic pressure, the minimum pressure difference should be 25Pa. 2) Refers to the percentage of the measured value.
JB/T8544—1997
Measurement items
Dry
Wet-bulb temperature of air inlet and outlet during hot and cold performance test and inlet and outlet temperature of heat exchange equipment
Other temperatures
Air static pressure and dynamic pressure
Water resistance, steam pressure drop
Steam supply pressure
Atmospheric pressure
Water flow of heat exchanger, steam condensate
Sectional wind speed uniformity||t t||Electrical parameters of fan input
Fan speed
Unit noise
Fan section vibration speed
Condensate volume, etc.
Temperature and humidity accuracy
6.3.3.3 Test unit of electric valves (including water valves, steam valves and air valves)
Instrument accuracy
GB/T14294
GB2624
GB8070 Appendix B
GB 9068
Apply the specified voltage to the actuator, and then continuously adjust the signal voltage. The opening angle of the valve should be consistent with the signal voltage. 6.3.3.4 Alarm system test
a) When simulating winter working conditions, stop supplying water to the heat coil. When the antifreeze switch is activated, the system should give an alarm in time, and automatically stop the fan operation, close the fresh air valve and exhaust valve, and open the heat coil water supply regulating valve. b) During the inspection, according to the filter characteristics, set the differential pressure switch to the corresponding protection action value. When the filter resistance value is artificially increased, the system should automatically alarm and continuously control.
c) During the whole machine operation test, first put the switch in the control cabinet to the manual position for manual operation test. When the manual operation is normal, put the switch to the automatic position and conduct the automatic operation test. The automatic operation test is carried out according to the functional requirements of the unit. d) The visual inspection method for installation should comply with the provisions of 5.2.6. 1010
7 Inspection rules
7.1 Inspection is divided into factory inspection and type inspection. 7.2 See Table 3 for inspection items.
7.3 Factory inspection
JB/T8544—1997
Name of inspection items
Inspection of main components
Safety requirements
Start-up and operation
Pressure resistance of pipes
Air volume and total pressure
Power input
Air leakage rate
Cooling capacity and heating capacity
Water flow through water retaining plate| |tt||Filtration efficiency and resistance
Condensation test
Water removal capacity
Surface wind speed uniformity
Control temperature and humidity accuracy
Automatic judgment and automatic conversion
Electric valve test
Alarm system testbZxz.net
Importance
7.3.1 The factory inspection of the unit shall be carried out according to items 1, 2, 3, 4 and 5 in Table 3. For the inspection of items 6 and 7 in Table 3, at least one unit shall be randomly inspected for every 20 units. If the annual output is less than 20 units, one unit shall be randomly selected. 7.3.2 Each unit must be inspected and qualified by the inspection department and attached with a quality inspection certificate before it can be shipped. 7.4 Type test
7.4.1 Type test shall be carried out for the unit in any of the following cases: a) when a new product is finalized;
b) when changes in the structure, manufacturing process and materials of the finalized product affect the performance of the product; c) when production is resumed after more than one year of suspension; d) when batch production is carried out once every three years; e) when the national quality supervision agency puts forward type test requirements. 7.4.2 The unit type test shall include all items in Table 3. 7.5 Judgment rules
JB/T 85441997
For a sample taken, if two main items or two general items in the inspection items are unqualified, another sample shall be inspected. If it is unqualified again, the batch of units shall be judged as unqualified products. 8 Marking, packaging, transportation and storage
8.1 Marking
8.1.1Each unit should have a product label and be fixed in a conspicuous position on the front. The label should include the following contents: a) Unit name and model;
b) Basic parameters of the unit (rated air volume, total pressure, steam supply, rated voltage, current, power and speed, etc.); c) Unit dimensions (length × width × height); d) Unit weight;
e) Factory number;
f) Factory date;
g) Manufacturer name.
8.1.2 The unit should indicate the working status, i.e. the rotation direction, open, close and other signs, and be accompanied by an electrical circuit diagram. 8.2 Packaging
8.2.1The unit should be stable in the packaging box, and the packaging box should be firmly and tightly bound. 8.2.2 The packing box should contain the packing list, product certificate and product installation and use manual and other relevant technical information. 8.2.3 The packing box should have packing marks that are not easy to fade, including the following: a) Product name and model;
b) Product net weight and gross weight;
c) Box size (length × width × height); d) Total x boxes, the ×th box;
e) Packing date;
f) Arrival station (port) and consignee;
g) Departure station (port) and consignor.
8.2.4 The packing box should have storage and transportation marks such as moisture-proof, rainproof, no rolling and careful handling. 8.3 Transportation and storage
8.3.1 The unit should not be hit, squeezed, thrown or exposed to rain and snow during transportation. 8.3.2 The unit should be stored in a moisture-proof, rain-proof and fire-proof place, and there should be no corrosive gas around it.2. The computer detection and control system for automatic judgment and automatic conversion of working conditions can accurately implement automatic partition judgment and automatic conversion of the best energy-saving working conditions according to the working condition parameters required by the system design.
Measurement parameters
Temperature and humidity
Measuring instruments
Glass mercury thermometer, resistance thermometer, thermocouple thermometer
Micromanometer (inclined, compensated or automatic sensing type)
U-shaped mercury manometer or one of equal accuracy
Pressure gauge
Steam pressure gauge
Atmospheric pressure gauge
Flowmeter, gravimetric or volumetric liquid dosing meter
Standard nozzle
Pitot tube
Anemometer
Voltmeter
Ammeter
Power or voltage-ammeter
Tachometer
Sound level meter
Contact measuring instrument
Temperature and humidity recorder
1) When measuring dynamic pressure, the minimum pressure difference should be 25Pa. 2) Refers to the percentage of the measured value.
JB/T8544—1997
Measurement items
Dry
Wet-bulb temperature of air inlet and outlet during hot and cold performance test and inlet and outlet temperature of heat exchange equipment
Other temperatures
Air static pressure and dynamic pressure
Water resistance, steam pressure drop
Steam supply pressure
Atmospheric pressure
Water flow of heat exchanger, steam condensate
Sectional wind speed uniformity||t t||Electrical parameters of fan input
Fan speed
Unit noise
Fan section vibration speed
Condensate volume, etc.
Temperature and humidity accuracy
6.3.3.3 Test unit of electric valves (including water valves, steam valves and air valves)
Instrument accuracy
GB/T14294
GB2624
GB8070 Appendix B
GB 9068
Apply the specified voltage to the actuator, and then continuously adjust the signal voltage. The opening angle of the valve should be consistent with the signal voltage. 6.3.3.4 Alarm system test
a) When simulating winter working conditions, stop supplying water to the heat coil. When the antifreeze switch is activated, the system should give an alarm in time, and automatically stop the fan operation, close the fresh air valve and exhaust valve, and open the heat coil water supply regulating valve. b) During the inspection, according to the filter characteristics, set the differential pressure switch to the corresponding protection action value. When the filter resistance value is artificially increased, the system should automatically alarm and continuously control.
c) During the whole machine operation test, first put the switch in the control cabinet to the manual position for manual operation test. When the manual operation is normal, put the switch to the automatic position and conduct the automatic operation test. The automatic operation test is carried out according to the functional requirements of the unit. d) The visual inspection method for installation should comply with the provisions of 5.2.6. 1010
7 Inspection rules
7.1 Inspection is divided into factory inspection and type inspection. 7.2 See Table 3 for inspection items.
7.3 Factory inspection
JB/T8544—1997
Name of inspection items
Inspection of main components
Safety requirements
Start-up and operation
Pressure resistance of pipes
Air volume and total pressure
Power input
Air leakage rate
Cooling capacity and heating capacity
Water flow through water retaining plate| |tt||Filtration efficiency and resistance
Condensation test
Water removal capacity
Surface wind speed uniformity
Control temperature and humidity accuracy
Automatic judgment and automatic conversion
Electric valve test
Alarm system test
Importance
7.3.1 The factory inspection of the unit shall be carried out according to items 1, 2, 3, 4 and 5 in Table 3. For the inspection of items 6 and 7 in Table 3, at least one unit shall be randomly inspected for every 20 units. If the annual output is less than 20 units, one unit shall be randomly selected. 7.3.2 Each unit must be inspected and qualified by the inspection department and attached with a quality inspection certificate before it can be shipped. 7.4 Type test
7.4.1 Type test shall be carried out for the unit in any of the following cases: a) when a new product is finalized;
b) when changes in the structure, manufacturing process and materials of the finalized product affect the performance of the product; c) when production is resumed after more than one year of suspension; d) when batch production is carried out once every three years; e) when the national quality supervision agency puts forward type test requirements. 7.4.2 The unit type test shall include all items in Table 3. 7.5 Judgment rules
JB/T 85441997
For a sample taken, if two main items or two general items in the inspection items are unqualified, another sample shall be inspected. If it is unqualified again, the batch of units shall be judged as unqualified products. 8 Marking, packaging, transportation and storage
8.1 Marking
8.1.1Each unit should have a product label and be fixed in a conspicuous position on the front. The label should include the following contents: a) Unit name and model;
b) Basic parameters of the unit (rated air volume, total pressure, steam supply, rated voltage, current, power and speed, etc.); c) Unit dimensions (length × width × height); d) Unit weight;
e) Factory number;
f) Factory date;
g) Manufacturer name.
8.1.2 The unit should indicate the working status, i.e. the rotation direction, open, close and other signs, and be accompanied by an electrical circuit diagram. 8.2 Packaging
8.2.1The unit should be stable in the packaging box, and the packaging box should be firmly and tightly bound. 8.2.2 The packing box should contain the packing list, product certificate and product installation and use manual and other relevant technical information. 8.2.3 The packing box should have packing marks that are not easy to fade, including the following: a) Product name and model;
b) Product net weight and gross weight;
c) Box size (length × width × height); d) Total x boxes, the ×th box;
e) Packing date;
f) Arrival station (port) and consignee;
g) Departure station (port) and consignor.
8.2.4 The packing box should have storage and transportation marks such as moisture-proof, rainproof, no rolling and careful handling. 8.3 Transportation and storage
8.3.1 The unit should not be hit, squeezed, thrown or exposed to rain and snow during transportation. 8.3.2 The unit should be stored in a moisture-proof, rain-proof and fire-proof place, and there should be no corrosive gas around it.3 Factory inspection
JB/T8544—1997
Name of inspection items
Inspection of main components
Safety requirements
Start-up and operation
Pressure resistance of exhaust pipe
Air volume and total pressure
Power input
Air leakage rate
Cooling and heating capacity
Water flow rate of water retaining plate
Filtration efficiency and resistance
Condensation test
Dew removal capacity
Surface wind speed uniformity
Control temperature and humidity accuracy
Automatic judgment and automatic conversion
Electric valve test
Alarm system test
Importance
7.3.1 The factory inspection of the unit shall be carried out unit by unit according to items 1, 2, 3, 4 and 5 in Table 3. For the inspection of items 6 and 7 in Table 3, at least one unit shall be randomly inspected for every 20 units. If the annual output is less than 20 units, one unit shall be randomly inspected. 7.3.2 Each unit must be inspected and qualified by the inspection department and attached with a quality inspection certificate before it can leave the factory. 7.4 Type test
7.4.1 Type test shall be carried out for the unit when one of the following conditions occurs: a) When a new product produced on trial is finalized;
b) When changes in the structure, manufacturing process and materials of the finalized product affect the performance of the product; c) When production is resumed after being suspended for more than one year; d) When mass production is carried out, it shall be carried out once every three years; e) When the national quality supervision agency puts forward type test requirements. 7.4.2 The unit type test shall include all the items in Table 3. 7.5 Judgment rules
JB/T 85441997
For a sample, if two main items or two general items in the inspection items are unqualified, another sample shall be inspected. If it is unqualified again, the batch of units shall be judged as unqualified products. 8 Marking, packaging, transportation and storage
8.1 Marking
8.1.1 Each unit shall have a product label and be fixed in a conspicuous position on the front. The label shall include the following contents: a) Unit name and model;
b) Basic parameters of the unit (rated air volume, total pressure, steam supply, rated voltage, current, power and speed, etc.); c) Unit dimensions (length × width × height); d) Unit weight;
e) Factory number;
f) Factory date;
g) Manufacturer name.
8.1.2 The unit should indicate the working status, i.e. the direction of rotation, on and off signs, and be accompanied by an electrical circuit diagram. 8.2 Packaging
8.2.1 The unit should be stable in the packaging box, and the packaging box should be firmly and tightly bound. 8.2.2 The packaging box should contain relevant technical information such as packing list, product certificate and product installation and operation manual. 8.2.3 The packaging box should have a packing mark that is not easy to fade, including the following: a) Product name and model;
b) Product net weight and gross weight;
c) Box size (length × width × height); d) Total x boxes, the ×th box;
e) Packing date;
f) Arrival station (port) and receiving unit;
g) Departure station (port) and shipping unit.
8.2.4 The packaging box should have storage and transportation signs such as "Avoid moisture", "Rainproof", "No tumbling" and "Handle with care". 8.3 Transportation and storage
8.3.1 The unit should not be hit, squeezed, thrown or exposed to rain or snow during transportation. 8.3.2 The unit should be stored in a moisture-proof, rain-proof and fire-proof place, and there should be no corrosive gas around it. 10123 Factory inspection
JB/T8544—1997
Name of inspection items
Inspection of main components
Safety requirements
Start-up and operation
Pressure resistance of exhaust pipe
Air volume and total pressure
Power input
Air leakage rate
Cooling and heating capacity
Water flow rate of water retaining plate
Filtration efficiency and resistance
Condensation test
Dew removal capacity
Surface wind speed uniformity
Control temperature and humidity accuracy
Automatic judgment and automatic conversion
Electric valve test
Alarm system test
Importance
7.3.1 The factory inspection of the unit shall be carried out unit by unit according to items 1, 2, 3, 4 and 5 in Table 3. For the inspection of items 6 and 7 in Table 3, at least one unit shall be randomly inspected for every 20 units. If the annual output is less than 20 units, one unit shall be randomly inspected. 7.3.2 Each unit must be inspected and qualified by the inspection department and attached with a quality inspection certificate before it can leave the factory. 7.4 Type test
7.4.1 Type test shall be carried out for the unit when one of the following conditions occurs: a) When a new product produced on trial is finalized;
b) When changes in the structure, manufacturing process and materials of the finalized product affect the performance of the product; c) When production is resumed after being suspended for more than one year; d) When mass production is carried out, it shall be carried out once every three years; e) When the national quality supervision agency puts forward type test requirements. 7.4.2 The unit type test shall include all the items in Table 3. 7.5 Judgment rules
JB/T 85441997
For a sample, if two main items or two general items in the inspection items are unqualified, another sample shall be inspected. If it is unqualified again, the batch of units shall be judged as unqualified products. 8 Marking, packaging, transportation and storage
8.1 Marking
8.1.1 Each unit shall have a product label and be fixed in a conspicuous position on the front. The label shall include the following contents: a) Unit name and model;
b) Basic parameters of the unit (rated air volume, total pressure, steam supply, rated voltage, current, power and speed, etc.); c) Unit dimensions (length × width × height); d) Unit weight;
e) Factory number;
f) Factory date;
g) Manufacturer name.
8.1.2 The unit should indicate the working status, i.e. the direction of rotation, on and off signs, and be accompanied by an electrical circuit diagram. 8.2 Packaging
8.2.1 The unit should be stable in the packaging box, and the packaging box should be firmly and tightly bound. 8.2.2 The packaging box should contain relevant technical information such as packing list, product certificate and product installation and operation manual. 8.2.3 The packaging box should have a packing mark that is not easy to fade, including the following: a) Product name and model;
b) Product net weight and gross weight;
c) Box size (length × width × height); d) Total x boxes, the ×th box;
e) Packing date;
f) Arrival station (port) and receiving unit;
g) Departure station (port) and shipping unit.
8.2.4 The packaging box should have storage and transportation signs such as "Avoid moisture", "Rainproof", "No tumbling" and "Handle with care". 8.3 Transportation and storage
8.3.1 The unit should not be hit, squeezed, thrown or exposed to rain or snow during transportation. 8.3.2 The unit should be stored in a moisture-proof, rain-proof and fire-proof place, and there should be no corrosive gas around it. 1012
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