1, the installation position of the air-conditioning main engine should be convenient for maintenance, and its use function should not be affected, with special attention to heat dissipation. In the case of multiple hosts in the computer room, all hosts must take over in the same direction as the operation surface;
2. The terminal equipment base is made of channel steel, and the specification of channel steel is determined according to the equipment weight, but not less than 10 channel steel;
3. The installation position of the fan coil is 150mm away from the wall, 200mm away from the window and 300mm away from the wall, and there is a pipe behind it (the size of corrugated pipe is reduced). If the ceiling is large enough, the coil can be installed horizontally with the air duct. If the ceiling is not high enough, try to install the coil near the floor (sufficient drainage height must be reserved);
4. The serial numbers of the air conditioner host and the fan coil must be copied correctly, and the random data should be kept well;
5. In the process of handling and installation, don't damage the equipment, especially the paint of the casing of the main engine, the condensing plate, the casing of the socket and the impeller of the fin and fan coil unit;
6. The junction box, condensate pipe interface and water inlet and outlet interface of the fan coil unit must be in the same direction, which is convenient for future maintenance; If the fan coil unit is connected to the return air duct, the motor must be removed when the inspection hole is opened at the lower part of the return air duct, which is convenient for maintenance;
7, the installation position of the equipment should be correct, Anping installation;
8. The coil screw and lifting steam-water shall not be less than 8 mm;
9. Electric two-way valve or proportional-integral valve must be installed on the outlet pipeline of all terminal equipment;
10, all equipment entrances and exits must be equipped with soft-connected shock absorbers;
1 1. The equipment base must be pre-padded with damping rubber plates or dampers;
12. A galvanized flat iron must be welded on the equipment base to connect the lightning protection grounding wire of the building. For example, in the machine room, all hosts, water pumps and power distribution cabinets must be connected with lightning protection ground wires and galvanized flat iron (as required by the electrical construction code).
Second, the wind system
1, corrugated pipe production should meet the requirements, layering should be good, good insulation; Do not damage the thermal insulation material during installation;
2. When the air return box is riveted with the fan coil unit, the air return box must be aligned and not twisted or twisted;
3. There should be no missing welding and small holes in flange welding. The diagonal error of the flange is less than 3mm, and the flatness error is less than 2 mm. The distance between the flange screw hole and rivet hole is specified as120 mm. Before painting, the flange must be removed, and then the secondary red lead is brushed;
4. The air duct head is fastened by socket, the air nozzle (0.05m) is riveted, and sealant should be applied everywhere. Flange riveting, duct flanging shall not be less than 6mm, four sides are consistent;
5. The windshield must be installed under the air supply duct, and the tuyere should be blunt;
6. Install two fan coil units for the air duct in the living room. The air duct and fan coil units are connected with waterproof soft canvas, with a length of 200mm and pressed with a single flange;
7, the installation of the master bedroom air duct (side down), the center of the air return outlet should be on the same plane axis; In case of side-to-side return, the air return openings should be in the same plane;
8. When the elevation of the sloping roof exceeds 2800mm, when installing the fan coil unit, the air supply outlet shall be equipped with a 45-degree (corner) air duct;
9. After the duct is made, it must be submitted for inspection first, and then installed with insulation;
10, when the length of the main air duct exceeds 1000mm, the pipe support shall be set in the center of the air duct. When the main air duct goes out of the machine room and goes through the wall, pipe sleeves should be set and fire dampers should be installed.
Third, the water system
The shrinkage of 1 and PP-R pipes during hot melting must be less than 3%, and the installation must meet the technical requirements of the manufacturer;
2. The wall-penetrating pipeline must be sleeved, and De25 and De32 adopt PUC70PUC 1 10 shell for De40, De50 and De63 adopt PUC 133 shell for De75 and De90;
3. The indoor pipe support adopts L30 angle steel, and the top coat is coated with aluminum powder; Outdoor use L40 angle steel; Channel steel supports must be used for large pipelines. (DN 150 or above)
4, pipe support before installation must first play line, spacing is less than 800mm, and must be equally divided in the same plane, the same area of support form should be consistent;
5. Pipeline installation of pipeline wells should be coordinated with cooperative units to avoid cross-influence;
6. The pipe rack installation position is greater than 150mm and less than 300mm from PP-R pipeline elbow; Pipe support installation should be straight, not skewed;
7. Pre-embedded holes must be reserved for pipeline support alignment, and pipeline installation must be horizontal and vertical;
8. After the water pipe is installed, it must be washed and pressure tested first. The test pressure is 65438±0 MPa, and the pressure shall be stabilized for 65438 00 minutes, and the pressure shall not drop; Then reduce the pressure to 0.6Mpa, and stabilize the pressure for 60 minutes. If the pressure does not drop and there is no leakage by visual inspection, it is qualified. Only after passing the inspection can heat preservation be carried out; The pressure of high-rise pipeline is 1.5 times.
9. An automatic exhaust valve must be set at the top of the chilled water pipe, and the hose should be connected to the condensing plate of the nearest fan coil or to the condensing water pipe; The lowest part of the chilled water pipe should be provided with a drain valve;
The hot-melt connection between 10 and PP-R pipe shall meet the following requirements:
(1), the choice of fuser should be appropriate, the mold should be in good condition, and the working temperature should be 230-260 degrees. The fuser can only work after reaching the set working temperature;
(2) Special pipe shears, hacksaws or pipe cutters should be used for pipe cutting. The cutting section should remove burrs and burrs, and the pipe cutting surface must be perpendicular to the pipe axis;
(3) Before welding, the dirt on the connection section of pipes and fittings must be removed to ensure that it is clean, dry and oil-free;
④ During hot melting, control the depth of hot melting to reduce the shrinkage;
(5) When welding elbows or tees, pay attention to their directions, but in the straight direction of pipe fittings and pipelines, there should be auxiliary signs to clarify their positions;
6. When heating, the pipe end should be inserted into the heating jacket without rotating and inserted to the specified depth. At the same time, the pipe fittings should be pushed onto the heating head without rotating to reach the specified depth and the heating time should meet the requirements;
⑦ As soon as the heating time arrives, remove the pipes and fittings from the heating jacket and the heating head at the same time, and quickly insert them into the specified depth without rotating the straight line to form a uniform flange at the joint;
Today, within the prescribed processing time, just welded joint can also be slightly corrected, but it is forbidden to rotate;
Pet-name ruby, pipe installation, shall not be axial distortion, should not be forced to correct;
Attending, pipe installation, temporarily don't accept the nozzle head must be sealed, so as to avoid sundry fall into the tube;
Four, condensate pipe installation
1, the diameter of condensate pipe should meet the technical requirements, and the installation must be completed before plastering and waterproofing of civil interior walls;
2. When installing the condensate pipe, first pull the wire (for inspection), then use a cutting machine to make a groove, and then connect it. The buried depth of the wall is15 mm; ; Prefabricated board should be slotted along the board seam, and horizontal drilling is not allowed; If a slot is made in a beam or shear wall, it must first be reported to the owner and the supervisor for approval;
3, condensate pipe installation must avoid the bathroom entrance door, away from doors, windows, etc. Should be greater than 200 mm; ;
4, condensate pipe installation bracket spacing should be less than 800mm；; The exposed part must be insulated (except tube well); When installing the condensate pipe, the length of the hose should be between 20 mm and 30 mm (the distance from nozzle to nozzle);
5. After the installation of condensate pipe, water supply and irrigation test must be carried out, and submitted to the supervision and inspection after passing the self-inspection.
Verb (abbreviation for verb) electrical installation
1, the line pipe clamp spacing should be less than 600mm, horizontal and vertical, and the corrugated pipe length should not be more than 500mm；;
2. The inlet pipe of the fan coil box must be led out from above the pipe;
3. Wire joints must be welded (no in-pipe joints) and double-wrapped with insulating tape and waterproof tape;
4, electrical insulation must meet the requirements;
5, fan coil gear speed line to connect correctly, can't make a mistake the zero line.
Sixth, heat preservation
1, water pipe insulation, insulation pipe shell and wood ring joint must brush glue, tape;
2, duct insulation, insulation glue should be evenly coated, can not have pores, the surface should be smooth, no dirt; Plate splicing must be above the air duct, and the splicing seam must be coated with glue;
3, thermal insulation materials can't fall off, cracks, damage and other phenomena, thermal insulation tape to bond well, don't fall off;
4, water pipe insulation, the shell can not pass through the place full of foaming agent;
5, after the pipeline pressure test, should first keep the well and water pipe wall parts clear, can't affect the civil cleaning;
6, after the completion of pipe insulation, but also wrapped film, as far as possible a single pipe winding, appearance inspection should be able to meet the requirements.
VII. Cooperate with civil laws and regulations
1. Slotting and drilling in walls and floors must be checked and approved.
2. Elastic thread is wrapped with pink thread, stone = red pigment, which is no longer used in Mo Dou;
3. Don't scribble on the wall, such as making a draft and making unnecessary marks;
4. If the putty is dirty outside, use sandpaper to grind it off in time; If other items are damaged outside, they should be repaired or compensated in time;
5, make a hole in the wall to founder, the right size, must use a chisel moderately carved chisel, it is forbidden to directly knock with a hammer;
6, without approval, it is forbidden to drill and slot on the shear wall and beam;
7, pay attention to the protection of finished products of other units, can't dirty metope, ground, can't damage waterproof, doors and windows, corner, window Angle and other objects;
8, the construction site must be neat and orderly, materials neatly stacked, construction waste should be cleaned up in time, not casually throw, it is forbidden to dump garbage from upstairs to below;
9. Strengthen cooperation and coordination with civil works during construction and hand over the site.
Eight. Relevant regulations
1, when using the electric hammer, it must be limited, and the size is 60mm, so as not to break through the roof;
2. Construction safety: Safety helmet must be worn when entering the construction site; Safety measures must be taken for aerial work; Power tools (cutting machine, bench drill, etc. ) should be regularly checked and used by special personnel;
3, the construction site shall not urinate anywhere, offenders will be severely punished;
4. Only one male can live in the warehouse;
5, the warehouse must be guarded 24 hours a day, it is forbidden to make a fire to cook;
6, the use of materials should be considered comprehensively, improve the utilization rate, prevent the material from being stolen or damaged, and control the material loss to a minimum (within the quota loss);
7. The installation of the same type of apartment must be consistent (subject to the model house), including the installation position and mode of equipment, the direction and diameter of return pipe, and the direction and diameter of condensate pipes.
8. Hold a weekly meeting at 5 pm every Sunday to report the construction progress, solve engineering problems and arrange construction tasks;
9. The confirmed project progress node must be completed, otherwise it will be punished according to regulations;
10. Strengthen management, carry out construction in strict accordance with technical disclosure and relevant specifications, and keep up with quality supervision and safety inspection to prevent quality accidents and safety accidents;
1 1, all the work on site must be based on ensuring the project quality and time limit for a project, so as to ensure the timely and high-quality completion of the construction tasks.
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