Some standard content:
JB/T9066—1999
This standard is a revision of ZBJ72027.1-89 "Types and basic parameters of cabinet fan coil units", ZBJ72027.2-89 "Technical conditions for cabinet fan coil units" and ZBJ72027.3-89 "Test methods for cabinet fan coil units". Compared with ZBJ72027.1~027.3-89, the main technical content of this standard has been changed as follows: Chapter 3 in the original 2BJ72027.1-89 and Chapter 3 in ZBJ72027.2-89 are now merged into Chapter 4. Appendix A of this standard is the standard appendix. Appendix B of this standard is the reminder appendix.
This standard replaces ZBJ72027.1~027.3-89 from the date of implementation. This standard is proposed and managed by the National Technical Committee for the Promotion of Refrigeration Equipment Standards. The responsible drafting unit of this standard is Shanghai Tonghui-Carrier Air Conditioning Equipment Co., Ltd. The main drafters of this standard are Yang Weirong and Wu Xiaowei. 1013
1 Scope
Machinery Industry Standards of the People's Republic of China
Cabinet type fan coil unit
Cabinet type fan coil unit
JB/T 9066-1999
Replaces ZBJ72027.1~027.3-89
This standard specifies the product classification, requirements, test methods, inspection rules and markings, packaging and storage of cabinet type fan coil units (hereinafter referred to as units).
This standard is applicable to units that use water (steam) as cold or heat source, and are cooled or heated by the fan to guide the mixed air for the purpose of regulating indoor air.
This standard does not apply to direct evaporation coils and electric heating units. 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. GB/T 699--19881
Technical conditions for high-quality carbon structural steel
GB/T 700—1988
GB/T 708--1988
GB/T 755—1987
GB/T 2059--1989
GB/T 3193---1982
GB/T 8163--1993
GB/T 9068—1988
Carbon structural steel
Dimensions, shapes, weights and permissible deviations of cold-rolled steel sheets and stripsBasic technical requirements for rotating electrical machines
Pure copper strip
Aluminum and aluminum alloy hot-rolled plates
Seamless steel pipes for fluids
Determination of sound power levels of noise for heating, ventilation and air conditioning equipmentEngineering methodGB/T 13306—1991
JB/T4292—1991
JB/T 7246—1994
JB/T 9062—1999
JB/T 9064—1999
JB/T 9065--1999
YB/T 5131--1993
3 Classification
Technical conditions for coils
Appearance quality of heating, ventilation and air conditioning equipment
Technical conditions for painting of heating, ventilation and air conditioning equipment Pressure test and sealing inspection
General technical conditions for packaging of heating, ventilation and air conditioning equipment Single hot-dip galvanized thin steel plate
The type of unit shall be as specified in Table 1.
1014 approved by the State Machinery Industry Bureau on July 12, 1999
2000-01-01implemented
Configuration
Installation type
Air supply type
Coil composition type
Water (steam) inlet direction
Humidification type
JB/T9066—1999
Direct blowing type
Duct type
Steam and cold water combination Combined coil
Cold (hot) water coil
Cold and hot water combined coil
Left water inlet
Right water inlet
Rear water inlet
Electric humidification
Steam humidification
High-pressure spray humidification
Wet film humidification
Ultrasonic humidification
Note: The regulations on the direction of water (steam) inlet are based on facing the front air outlet. The model of the unit is composed of uppercase Chinese pinyin letters and Arabic numerals. The specific expression method is: 3.2
0OO0 port
Humidification type code: see Table 1
Water (steam) inlet direction code: see Table 1
Coil composition type code: see Table 1
-Air supply type code: see Table 1
Installation type code: see Table 1
Structural type code: see Table 1
-1/1000 of the nominal air volume: digital, take one significant digit after the decimal point, m/h Model example:
-Basic code for cabinet fan coil
G-3.5-D, that is, the nominal air volume is 3500m2/h, vertical, exposed, direct blowing, cold (hot) water coil, left water inlet, electric humidification cabinet fan coil unit.
G-18WAF-ZY is a horizontal, concealed, ducted, hot and cold water combined coil, right water inlet, steam humidification cabinet fan coil unit with a nominal air volume of 18000m/h.
4 Requirements
4.1 General requirements
JB/T9066
4.7.1 The unit shall comply with the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 4.1.2 The unit structure shall be reasonable and convenient for users to install and maintain, and the filter shall be easy to install and disassemble. 4.2 Basic parameters
4.2.1 The nominal air volume, cooling capacity and external static pressure of the unit shall comply with the provisions of Table 2. Table 2
Nominal air volume, m/h
Nominal cooling capacity, w
Nominal heating capacity, W
Minimum external static pressure, Pa
Nominal air volume, m2/h
Nominal cooling capacity, w
Nominal heating capacity, W
Minimum external static pressure, Pa
Nominal air volume, m\/h
Nominal cooling capacity, w
Nominal heating capacity, w
Minimum external static pressure, Pa
Nominal air volume, m/h
Nominal cooling capacity, W
Nominal heating supply, W
Minimum external static pressure, Pa
Nominal air volume, m/h
Nominal cooling capacity, w
Nominal heating supply, W
Minimum external static pressure, Pa
Duct type
Direct blowing type
Duct type
Direct blowing type
Duct type
Direct blowing type
Duct type
Direct blowing type
Duct type
Direct blowing type
156170
171 790
167330
184060
36 810
100400
110430
195210
214730
Note: Minimum external static pressure refers to the unit equipped with filters, heating coils and all accessories. 1016
111550
122710
223100
245410
122710
134980
250990
276090
44 620
139440
153380
278880
306760
JB/T 9066-—1999
4.2.2 The nominal air volume, static pressure and nominal input power parameters of the unit are determined according to the working conditions in Table 3. Table 3
Inlet air dry bulb temperature
Water supply condition
Fan speed
Inlet and outlet air static pressure difference
4.2.3 The nominal cooling and heating parameters of the unit are determined according to the working conditions in Table 4. Table 4
Dry bulb temperature
Wet bulb temperature
Inlet water (steam) temperature
Outlet water temperature rise
Inlet steam pressure, kPa
Air volume, m\/h
Inlet and outlet air static pressure difference, Pa
Cooling condition
19.5±0.5
14~27℃
No water supply
Nominal speed of fanbZxz.net
Minimum external static pressure or design static pressure ±2Pa
Heating condition
Nominal air volume
Minimum external static pressure or design static pressure ±2
4.2.4 The unit uses a three-phase voltage of 380V and a frequency of 50Hz AC power supply. 4.3 Performance requirements
4.3.1 The unit should be able to start and work normally when the power supply voltage deviation is ±10% of the rated value. 4.3.2 The cold and hot water used by the unit should be softened. 4.3.3 The water coil of the unit should be able to operate normally under 980kPa pressure and 80C hot water. 4.3.4 The steam coil of the unit should be able to operate normally under 490kPa pressure and 200℃ steam. 4.3.5 The wind speed through the cold coil should not exceed 2.5m/s, and no water droplets should be carried when exhausting. 4.3.6 The unit should be well insulated, and no condensation should drip on the surface of the box during operation. 4.3.7 The unit should have a condensate treatment device, and no condensate should drip during operation. 4.4 Main technical indicators
4.4.1 The main technical indicators of the unit shall be as specified in Table 5. Table 5
Air volume, cooling capacity, heating capacity
Water resistance
Input power
≥95% of nominal value
≤110% of nominal value
Yanqi heating conditions
107±1
≤115% of nominal value
JB/T9066—1999
The noise sound pressure level limit of the unit shall be as specified in Table 6, and the sound power level data shall be provided. 4.4.2
Nominal air volume
2000~3000
3500~4500
5000~6500
7000~8 000
9 00011 000
12 000~14 000
15 000~18 000
20 000- 28 000
30 000~35 000
40 000～50 000
4.4.3 The cooling capacity per unit weight of the unit shall be in accordance with the provisions of Table 7. Table?
Nominal air volume
2000~3000
3500~-4500
5000~6500
7 000~~8 000
9 000~11 000
12 000~14 000
15 000~~18 000
20 000~28 000
30 000~35000
40 000~50 000
Safety requirements
Safety requirements of the unit shall comply with relevant regulations.
4.6 Quality requirements for supporting products
Cooling capacity per unit weight
≥120
≥130
≥150
≥160
≥180
≥200
≥210
≥230
≥250
≥260
4.6.1 The temperature rise of the motor winding should not be greater than the temperature rise specified by the insulation grade of the motor. 4.6.2 The parts and components of fans, electrical appliances and humidifiers shall comply with the provisions of relevant standards. 4.6.3 Coils shall comply with the provisions of JB/T4292.
4.7 Quality requirements for main parts and components
4.7.1 The main parts and components shall be manufactured according to the materials specified in Table 8. Other materials that experience has shown do not reduce performance and life requirements and meet safety requirements may be used as substitutes.
Main parts and components
Box, supporting device
Inlet and outlet grilles, blades
Copper tube of coil
Finally fins of coil
Coil header, pipe joint
Wind casing, impeller
Filter
JB/T9066-1999
Material name
Galvanized steel sheet, cold-rolled steel sheet
Galvanized, cold-rolled steel sheet, ABS
Copper tube for air conditioner
Aluminum foil, copper strip
Seamless steel tube
Galvanized, cold-rolled steel sheet, aluminum sheet
Nylon concave-convex net, electronics, activated carbon, non-woven fabric, aluminum net4.7.2 The surface of black metal products used in the unit should be treated with anti-rust treatment. 4.7.3 The thermal insulation layer should be pasted evenly and firmly. 4.7.4 The painted parts of the unit shall comply with the relevant provisions of JB/T9062. 4.8 Appearance quality requirements of the unit and its parts and components The appearance quality of the unit and its parts and components shall comply with the provisions of JB/T7246. 4.9 Quality assurance period
Standard code
GB/T699.GB/T700.GB/T708、YB/T5131GB/T 700,GB/T 708. YB/T 5131GB/T2059
GB/T 8163
GB/T 700.GB/T 708、GB/T 3193、YB/T 5131 Under the condition that the user complies with the provisions shown in the product manual, if the unit is damaged or cannot work properly due to poor manufacturing quality within 18 months from the date of shipment from the manufacturer (except for wearing parts), the manufacturer shall replace or repair it free of charge. 5 Test methods
5.1 Test conditions
5.1.1 The test conditions shall be as specified in Table 9. When the air volume of the unit is adjustable, the condensation test shall be carried out at the maximum air volume, and the condensation test shall be carried out at the minimum air volume.
Inlet air status
Water (steam) status
Dry bulb temperature
Wet bulb temperature
Water inlet temperature
Water outlet temperature rise
Water outlet temperature
Steam temperature
Steam pressure
Fan speed
Air inlet and outlet static pressure difference
Air volume, static pressure output
Human power test
Fan nominal speed
Cooling capacity
Hot water heating
Steam heating
Nominal air volume
Minimum external static pressure or design static pressure
Condensate
JB/T 9066- 1999
5.1.2 The allowable deviation of the test readings shall be in accordance with the provisions of Table 10. Table 10
Inlet and outlet air status
Water (steam) status
Air flow, %
Water flow, %
Unit operating voltage, V
Wet bulb temperature, ℃
Wet bulb temperature, ℃
Water inlet temperature for cooling, ℃
Water inlet temperature for heating, ℃
Steam inlet pressure, kPa
Steam inlet temperature, ℃
Air pressure difference between the test room and the outlet joint of the unit or between the inlet and outlet joints of the unit, Pa
5.2 Test instruments
Maximum allowable difference between the maximum and minimum observed values
Maximum allowable difference between the observed average value and the specified test
operating conditions
The instruments selected for the test shall be accompanied by a calibration certificate with a valid service life, and their minimum scale value and accuracy shall comply with the provisions of Table 11. Table 11
Measurement items
Temperature and humidity measurement
Water or condensed water measurement
Air pressure measurement
Air volume measurement
Water (steam) resistance measurement
Steam pressure measurement
Atmospheric pressure measurement
Electrical characteristics
5.3 Test contents
5.3.1 Air volume and static pressure test
Thermometer and hygrometer
Water meter
Air dry-bulb and wet-bulb temperature
Cold and hot water
General temperature
Mass meter
Voltage meter
Timer
Flow meter
Inclined micro-manometer
Compensated micro-manometer
Mercury column U-shaped tube
Mercury column U-shaped tube
Various types of atmospheric pressure meters
Voltmeter
Ammeter
Power meter
Frequency meter
Minimum division value
Accuracy
JB/T 9066-7999
All air filters, air inlet and outlet grilles, etc. of the unit should be installed; if the unit does not have the above accessories, they should be installed in the measurement system. Use the test device in Appendix A (Standard Appendix) to test according to the air volume and static pressure test conditions specified in Table 9. During the test, the following methods are used for different units: a) Direct blowing type: adjust the static pressure control device so that the pressure of the static pressure measurement room reaches the atmospheric pressure of the test room, and then measure the air volume and static pressure of the unit;
b) Duct type: adjust the static pressure control device so that the static pressure of the static pressure measurement room and the test room reaches the minimum external static pressure or the design static pressure value, and then measure the air volume and static pressure of the unit;
c) For units with multiple air outlets, install a short static pressure chamber that meets Figure A2 or Figure A3 in Appendix A on each air outlet. The air passes through the static pressure chamber into a common air duct section and then into the air flow device. An adjustable flow restrictor is installed on the plane where each static pressure chamber enters the common air duct section to balance the static pressure in each static pressure chamber; d) The wind speed through the nozzle throat should be 15-35m/s; e) The air volume is calculated according to the method shown in Appendix A. 5.3.2 Power input test
While conducting the test in 5.3.1, measure the total power input of the unit. 5.3.3 Cooling and heating test
The test is carried out according to the conditions specified in Table 9 for cooling and heating test conditions and using the test device in Appendix A. The thermometer or sampler is located 150mm away from the air inlet of the unit. When measuring the wet bulb temperature, the air velocity flowing through the wet bulb thermometer should be ensured to be 4-10m/s (optimally maintained at 5m/s). When the unit is connected to the inlet air duct, the temperature at the air inlet should be measured at least three equidistant positions in the air inlet area of the unit or by using a sampling method with the same effect. The temperature in the air duct should be measured at the center of each equal grid of the cross section, and the positions should be no less than three or a suitable sampler should be used. When measuring the water (steam) temperature in the pipeline, the temperature measuring instrument should be placed parallel to the water (steam) flow and against the direction of the water (steam) flow, and directly inserted into the water (steam).
The water (steam) pipe should be insulated, especially the pipes on both sides of the water (steam) temperature measuring device, that is, the connecting water (steam) pipe between the water (steam) temperature measuring device and the unit under test and the water (steam) pipe within 200mm on the other side of the device should be insulated. When measuring the cooling and heat supply of the unit, the working conditions should be stable. After the working conditions are stable, read at least four times at equal time intervals within 30 minutes, and the atmospheric pressure should be recorded at least once each time.
After taking the average of the four readings, calculate the cooling and heat supply of the air side and water (steam) side of the unit under test according to Appendix A. The heat balance of the cooling and heating capacity on the air side and water (steam) side of the unit should be within 5%, and the arithmetic average of the two is taken as the cooling and heating capacity of the unit. 5.3.4 Water (steam) resistance test
a) Pass water of about 10C into the unit, and measure the static pressure difference between the inlet and outlet of the water pipeline according to the provisions of Appendix A; b) Measure the steam pressure drop according to the measuring device in Appendix A. 5.3.5 Condensation test
The test is carried out according to the condensation test conditions specified in Table 9. After the conditions are stable, it is continuously operated for 4 hours. 5.3.6 Condensate treatment test
The test is carried out according to the condensate treatment test conditions specified in Table 9. After the conditions are stable, it is continuously operated for 4 hours. 5.3.7 Motor temperature rise test
The temperature rise test of the motor running under cooling and heating conditions is carried out according to the method specified in 5.3.3, and the temperature rise of the motor winding is measured by the resistance method. If the air volume of the unit is adjustable, the test shall be conducted at the maximum air volume and the minimum air volume respectively. 5.3.8 Insulation resistance test
After the heating capacity test and condensation test are conducted according to 5.3.3 and 5.3.5, the insulation resistance is measured between the live parts and the dead parts with a 500V.100MQ insulation resistance meter. 5.3.9 Insulation dielectric strength test
After the test is conducted according to 5.3.8, an AC voltage of 1500V and 50Hz is applied between the live parts and the dead metal parts for 1021
JB/T9066—1999
1min. A test voltage of 500V is applied to the circuit with a voltage of less than 30V to the ground. 5.3.10 Start-up and operation test
After the cooling capacity test is conducted according to 5.3.3, the unit shall stop for 3min and then restart at a voltage of 90% of the rated voltage at the specified frequency. If the air volume of the unit is adjustable, start at the minimum air volume. The unit should be operated for a duration of not less than 10 minutes, and check that there is no looseness between the parts. If the air volume is adjustable, operate at the maximum air volume.
5.3.11 Noise test
The noise test method of the unit should be in accordance with the provisions of GB/T9068. 5.3.12 Pressure test and sealing inspection
The pressure test and sealing inspection of the unit should be in accordance with the provisions of JB/T9064. Note
During factory inspection, the tests should be carried out in accordance with 5.3.8, 5.3.9, 5.3.10 and 5.3.12 under the conditions of normal temperature and relative humidity not exceeding 80%. 1
2 During mass production, 120% of the voltage in 5.3.9 is used as the test voltage for 1s for factory inspection. 5.4 Test results summary
5.4.1 Each measurement parameter is calculated according to the arithmetic mean of the data measured during the test period. 5.4.2 The measured air volume is expressed as the volume flow rate under standard conditions. 5.4.3 The measured cooling and heating of the unit are calculated according to the formula in Appendix A. 6 Inspection rules
Inspection classification and inspection items
Unit inspection is divided into type inspection, random inspection and factory inspection. 6.1.11
6.1.2 The various inspection items of the unit shall be in accordance with the provisions of Table 12. Table 12
Air volume and static pressure test
Cooling and heating test
Electric power input test
Water resistance test
Condensation test
Condensate treatment test
Motor temperature rise test
Insulation resistance test
Insulation dielectric strength test
Starting and running test
Noise test
Pressure resistance and sealing inspection
6.2 Factory inspection
Inspection category
V (cooling)
Each unit must be inspected and qualified by the inspection department of the manufacturer and accompanied by a quality inspection certificate before it can be shipped. 6.3 Type inspection
6.3.1 Each type of trial product should be subject to type inspection. 1022
V(normal temperature）
JB/T 9066—1999
6.3.2 When there is a major change in the structure or material of the unit, a type inspection should be carried out. 6.4 Random inspection
The number of units to be inspected shall be in accordance with the provisions of Table 13. 6.4.1
Annual output
Number of random inspections
6.4.2 In normal batch production, each type of unit shall be inspected after passing the factory inspection. If the inspection result is unqualified, double the number shall be re-inspected; if there is still one unqualified unit, the batch of products shall be inspected one by one. 7 Marking, packaging and storage
7.1 Marking
7.1.1 Each unit shall be fixed with a label in a conspicuous position. The type, size and technical requirements of the label shall comply with the provisions of GB/T13306. The following information should be included on the label:
a) manufacturer’s name,
b) product model and name;
c) rated voltage;
d) rated frequency;
e) nominal air volume, nominal cooling capacity, static pressure; f) year and month of manufacture;
g) product factory serial number.
7.1.2 The unit should have a mark indicating the working conditions (such as control switches, rotation direction, etc.), and an electrical circuit diagram should be placed in an appropriate position. 7.1.3 The unit should be marked with a trademark.
7.2 Packaging
7.2.1 The packaging of the unit should comply with the provisions of JB/T9065. 7.2.2 The following technical documents should be included in the packaging box. 7.2.2.1 Product certificate.
7.2.2.2 Product manual, including:
a) Product model and name, working principle, main technical performance, characteristics and application scope; b) Product structure diagram, water resistance curve, electrical principle and circuit diagram; c) Installation instructions and requirements;
d) Instructions for use, maintenance and care precautions. 7.2.2.3 Packing list.
7.3 Storage
7.3.1 The unit should be stored in a ventilated and dry warehouse or grille, and prevent the product from being knocked and corrosive gas erosion. 7.3.2 The storage period is one year. If it exceeds one year, it should be inspected in time. 1023
A1 Air test device
JB/T 9066--- 1999
Appendix A
(Appendix to the standard)
Thermal performance test of cabinet fan coil unit The air volume, static pressure and air parameters of the cabinet fan coil unit (hereinafter referred to as the unit) are measured by the device shown in Figure A1. The entire test device should be insulated.
Alternative structure
Pitot tube
Air sampling type dry bulb thermometer
Insulation layer
Mixing chamber
Horizontal unit
[Static pressure
Manometer
Static pressure chamber
①Indicates temperature measuring instrument.
Pressure gauge
Receiving chamber
Air sampling tube
1) When there is no diffusion baffle downstream of the nozzle.
Pressure gauge
Auxiliary fan
Static pressure control device
Exhaust chamber
Diffuser (if necessary)
A1.1 The air side system includes: static pressure chamber, mixing chamber, exhaust chamber, air mixing device, air dry and wet bulb temperature sampling device, flow measurement nozzle, static pressure control device and auxiliary fan, etc. The cross-sectional dimensions of the static pressure chamber should be the same as the outlet dimensions of the unit being tested, and its length is determined by the outlet dimensions; the cross-sectional dimensions of the mixing chamber and the exhaust chamber can be determined according to the requirements of the nozzle installation dimensions. 1024
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