Specification for ventilation and air conditioning. Initial data for drawing up the terms of reference for the ventilation project. Requirements for the contractor

For correct selection ventilation systems of the correct calculation and configuration of the air duct laying, we have compiled a list of questions that need to be answered. To calculate the cost of installing a climate system, Golden Climate has developed a table that will facilitate and systematize the choice of equipment and its brand. After calling our office, you will be asked fifteen questions to understand and determine your wishes. If necessary, a specialist will come to you absolutely free of charge (within St. Petersburg, of course, and its region no further than 100 km) to clarify and approve the configuration of the climate system. I ask you to treat this with understanding, as we are obliged to provide you with excellent result our work and 50% of it depends on the right task. Our specialist will help you choose the best option ventilation systems suitable for your situation.

Selection of ventilation
1 Plan of the room for calculating the laying of the route and air ducts
2 Installation of air ducts open
closed
3 Wall thickness and equipment installation location
4 Ventilation system configuration
monoblock
5 Noise isolation yes
not necessary
6 Purpose of ventilation Supply and exhaust
exhaust
supply
7 Availability of local exhaust fume hood
umbrella (size)
8 Temperature maintenance heating
cooling
10 Water heater type
electric
11 Type of cooler water, glycol - chiller
freon (for calculating heat gains, you need to get data by answering questions)
12 Grille air distributors
diffuser
13 Office shield
key on off
a computer
14 Installation of equipment and materials before repair
after repair
15 Estimated cost costs

Work on the creation of estimates is carried out within 2 days.

TERMS OF REFERENCE FOR SYSTEM DESIGN

VENTILATION AND AIR CONDITIONING

(residential, administrative and amenity, public buildings)

"____" ______________ 200__ 1 Technical task 1.1 Develop ⁯ design, ⁯ working documentation under the section "General ventilation and air conditioning". 1.2 Calculate systems: ⁯general ventilation,⁯conditioning. 1.3 Calculations of systems are carried out in accordance with the Normative and technical documentation, SNiP 41-01-2003 "Heating, Ventilation and air conditioning". 1.4 Take the outside air parameters in accordance with: SNiP 23-01-99 * "Construction climatology", others documents, (specify which) _____________________________________________________________________________. 1.5 Indoor air parameters according to:⁯ according to SNiP; ⁯ temperature _________________________ about C 2 Object parameters (buildings, premises) 2.1 Area of the building (complex of buildings, premises): _________________________ m 2 . 2.2 Ceiling height ____________________________________________________ mm. 2.3 Ceiling space ____________________________________________ mm. 2.4 Type of ceilings (suspended, false, stretch, etc.) ____________________________________. 2.5 Enclosing structures, including glazing: ⁯ accept in accordance with paragraphs. 6.1 "Architectural solutions"; ⁯ take according to the summary table for all enclosing structures, indicating materials and thicknesses layers. The table is provided by the Customer's representative in the absence of information in the section "Architectural Solutions". Parameters must be specified in the table window openings(number, size, presence of curtains, etc.). ⁯ 3 Data for calculation 3.1 The number of people in the premises should be taken according to: ⁯ by the number of seats on the furniture layout plan; ⁯ ⁯ 3.2 Number and capacity of pieces of equipment and lighting fixtures take according to: ⁯ according to technological solutions for the object (building, premises); ⁯ by written agreement with the Customer signed by an authorized representative. 3.3 The areas of the premises shall be taken according to: ⁯ room explication table; ⁯ other ________________________________________________________________________________________. 4 Options systems ventilation 4.1 The parameters of the ventilation system should be taken according to the highlighted points: ⁯ Supply- exhaust ventilation with mechanical motivation. ⁯ With heat recovery.⁯With air recirculation. ⁯ Wiring of air ducts of ventilation systems in the ceiling space. ⁯ Air handling units with a cooling section (specify the type of refrigerant, paragraph 5.1). ⁯ Air handling units with humidification section. ⁯ Installing the air heater:⁯ electric; ⁯ water; ⁯ another___________________________________________________________. 4.2 Distribution devices according to: ⁯ ceiling diffusers; ⁯ non-adjustable ceiling grids; ⁯ adjustable ceiling grids; ⁯ non-adjustable wall grids; ⁯ adjustable wall grilles. 4.3 Location of supply and exhaust equipment according to: ⁯ ceiling space; ⁯ on the roof or in the attic (indicate on the plan); ⁯ ventilation chamber(indicate on the plan); ⁯ outside the building (indicate on the plan - with a note if on the wall) 4.4 Permissible level noise, dB_________________________________________________________________ 5 Air conditioning parameters: 5.1 The type of refrigerant should be taken according to: ⁯ freon; ⁯ glycol; ⁯ water. 5.2 Type of air conditioning system, (select the ones you need):⁯ split systems; ⁯ multi-split systems; ⁯ chiller-fan coil systems;⁯ central system refrigeration supply;⁯ other _________________. 5.3 Type of indoor units (select the ones you need):⁯fancoils are channel;⁯cassette fan coil units;⁯ wall-mounted; ⁯ cassette; ⁯ floor; ⁯ channel (with admixture fresh air⁯; ⁯ other _____________________. 6 List of documentation to be handed over to the Customer: 6.1 Equipment and material specifications 6.2 Working drawings 6.3 Explanatory note 7 Mandatory annexes to the terms of reference 7.1 Signed architectural drawings of the object (with all necessary sections). 7.2 Architectural drawings of the object (with all necessary sections) in *.dwg format. ( auto cad) 7.3 Technological solutions for the facility (including kitchen equipment and its features) 7.4 A summary table indicating the types of premises, the number of people, the number and power of pieces of equipment (in the absence of technological solutions for the facility, the coefficients for the simultaneous presence of people in the room (from 0 to 1) and the simultaneous activation of equipment (from 0 to 1) for each room) . 7.5 Explication table of the room. 8 Notes 8.1 All specifications object (buildings, premises), parameters of ventilation and air conditioning systems, as well as any other terms of reference that cannot be reflected in this form are drawn up as a separate annex to the terms of reference and are an integral part of it. 9 Additional Information: ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________

___________________________________________________________________________________________________

Customer ____________________________ m.p.

Without a normal level of air exchange and preparation, i.e. cleaning and filtering, heating and cooling, air layers hardly possible adequate functioning industrial equipment or the work and life of people. In order for the network to work properly, the ventilation system must be professionally designed and installed. This, in turn, suggests that the terms of reference for the installation of ventilation must be complete, take into account all the nuances and technical specifications, as well as the specifics of the building and the place where the network is installed.

Installation of ventilation

Types of ventilation schemes

As you know, all schemes for arranging ventilation networks can be divided into two classes - natural and mechanical. The latter is divided into:

supply;
exhaust;
Supply and exhaust;
Monoblock;
Typesetting.

Stacked ventilation

Since natural ventilation is arranged along with the building under construction, and its design is part of executive documentation on the box of the building itself - a plan for the construction of shafts for laying ventilation ducts - we will mainly talk about mechanical ventilation systems.

Operating principle

Mechanical air exchange is a process of exchange air masses indoors using devices and devices connected to the mains. Among them can be identified fans, reverse air valves, heaters and air conditioners, various types filters, etc.

Carbon filters

Through the supply grilles outdoor air from the street enters the system. Then it moves through the air ducts through the equipment installed inside them to the air distribution devices, with the help of which it is bred indoors. In the same way, only reverse side, polluted waste air masses are discharged back into the atmosphere.

Insofar as engineering network such a nature and properties as ventilation performs several basic tasks at once, its design and organization should be based on the calculation of a number of parameters. Among them:

Calculation of the air exchange rate for each room or work area;
Calculation of the required volume of supply masses;
Calculation of the material and design of air ducts, taking into account friction and resistivity execution material;
Calculation of the speed of movement of air masses through the channels;
Calculation of productivity and type of equipment;
Selection of the optimal route for laying channels and placing switchgears;
Designing a scheme for connecting the ventilation network to the power supply;
Selection necessary system automation, preparation circuit diagram instrumentation installations.

Duct types

These and many other aspects of the organization of the air exchange scheme should, of course, be reflected in the terms of reference, which is the fundamental document in the entire process of installation and arrangement, as well as the start of work.

Preparation of terms of reference

The terms of reference, as mentioned above, is the document from which the arrangement of any engineering communications and networks. Such a task is also included in the package of tender documentation when choosing a contractor for a working project, installation and commissioning of the network.

Ventilation project

Initial data

As a rule, in the terms of reference, before designating the requirements for the system itself, initial data about the object are given:

Location ( temperature regime region including)
Overall dimensions of the room / s (with the application of the plan of the building or structure);
Wall, floor material important parameter regarding the selection of materials for the execution of air ducts and risk assessment);
Data on the number of people in the premises and the number of jobs;
Data on the location of emission points, wiring diagrams of auxiliary systems (electricity, water or gas supply, for example).

Building ventilation system development

Technical requirements

In this section of the document, as a rule, such key parameters, as the preferred material of manufacture, the required power of the entire network and its individual elements, the requirements for providing project documentation, selection and involvement of subcontractors, performance of work, restrictions on health, safety and environmental protection and other aspects of installation.

If we are talking about ventilation, then the terms of reference for its design may also indicate the place of installation of air ducts (for example, in the ceiling space), or the preferred shape (rectangular section).

Works in the overhead space

Preparation of terms of reference

A well-designed and executed terms of reference can save the customer from many problems, including the loss of time unreasonably spent discussing certain technical aspects.

The terms of reference must include (not counting the title page and signature sheet):

Description of initial data for designing and carrying out works;
Technical requirements for the process of installation and commissioning of ventilation;
indication required documents, certificates and licenses; which the potential contractor must provide;
Indication of the date of submission of the proposal for the cost of work;
Indicates the need to submit a detailed or general plan performance of work;
Requirements for subcontractors and suppliers;
Requirements for the manufacturer of equipment and devices (if any);
Estimated dates of completion and delivery of works;
Requirements for subsequent maintenance, repair, warranty repair.

Air duct laying

Final document

The result of the preparation of a detailed and well-thought-out technical assignment is the design working drawings, according to which the network is being installed. The more detailed the terms of reference, the less likely it is that certain details need to be clarified and, accordingly, the shorter the time for completion of all work.

Installation and maintenance

After receiving all the necessary documents indicated in the terms of reference, preparation and approval of the project, the installation stage begins. The degree of readiness of the contractor for installation, the availability of the necessary set of tools and devices, etc. depends on how detailed the parameters of the working site are indicated in the terms of reference. The detail of the task for the installation also depends on how quickly and without overlays it will be done. For example, if the cross-section of air ducts was not indicated in the terms of reference, they may well turn out to be round, instead of the more suitable square ones, or vice versa.

Rectangular air ducts

After installation of the ventilation network, commissioning is carried out in different modes (if it is stipulated in the conditions of work) and the system is put into operation.

In most cases, the customer is also interested in the subsequent warranty and maintenance installed network. If all the requirements for the system service were discussed at the stage of preparation of the TOR, after the launch of the network there is no need to conduct new negotiations.

Details on the preparation of technical specifications

Technical task

1. Purpose of work

Enforcement of rules and regulations technical operation the above systems and ensuring their reliable, economical operation;

Finding the possibility of improving the efficiency of the equipment;

Finding ways to modernize equipment in order to provide the required microclimate parameters.

2. End result of maintenance work

Maintenance of the specified engineering systems of the building in working condition, as well as the exclusion of the occurrence of abnormal and in the elimination emergencies.

3. Requirements for the work performed

The work performed by the Contractor must be carried out in compliance with the requirements existing SNiP, SanPiN, TU, safety regulations, fire safety, protection environment, labor protection rules.

The quality of the Works must comply with all applicable requirements.

The Contractor shall ensure qualified technical management of the Works performed, as well as compliance with the working hours of employees responsible for carrying out works at the Customer's enterprise. The work carried out by the Contractor should not violate the routine of the main activity of the enterprise.

In case of emergencies and when called by the dispatching service, the Contractor ensures that the repair team arrives at the facility within 12 hours. In case of emergencies (threat of system defrosting, overheating of equipment, breakage of engineering communications, etc.), which can lead to the death of animals, as well as damage, as ventilation equipment, and other equipment that is on the balance sheet of the customer's enterprise, the arrival of the repair team is ensured within 2 hours from the moment the call is received from the customer. In the event of the occurrence of situations specified in this clause of the contract and violation of the specified deadlines for the arrival of the repair team at the customer's facility (including the inability of the customer to call the repair team: the Contractor's phone is out of network coverage, the phone line is busy, the Contractor changes the subscriber number without notice of the customer, etc.) The Contractor is obliged to reimburse all losses to the customer incurred by the customer as a result of the untimely Arrival of the contractor to the facility, including the cost of equipment, animals, etc.

All engineering systems shall be operated by the Contractor in accordance with the relevant current Rules technical operation, SNiPam, SanPiNam, guidance documents and technical documentation of equipment manufacturers.

All work must be carried out with high quality and within the time frame specified in Appendix 2.

4. Features of the production of Works

The list of all work to be carried out must be agreed with the customer's representative responsible for the work.

All works after their completion are handed over to the representative of the customer specified in the contract and are drawn up by acts of the established form.

Mandatory maintenance of a log of inspections and a log of work.

For all expendable materials, as well as spare parts and assemblies, passports and certificates are provided.

In case of poor-quality performance of work, all comments are eliminated at the expense of the contractor.

The list and frequency of performance of Works on the operation and maintenance of systems is carried out in accordance with Annexes No. 1, No. 2.

5. Requirements for the contractor

Availability of suitably qualified personnel.

Application to this technical task:

Schedule of work on complex maintenance of supply and exhaust ventilation systems and air conditioning systems in the premises of St. Petersburg State Unitary Enterprise "Zoo" (Appendix No. 1).

Note:

Calculation of the cost of work under the contract, taking into account the costs of insurance, payment of customs duties, taxes, fees and other obligatory payments, including taking into account all costs arising as part of the performance of work under the contract.

The price does not include the materials used in the execution of the work. When performing work, the Contractor shall supply necessary materials, which are paid by the Customer separately according to the Contractor's accounts. Preliminary coordination of materials and their prices by the Contractor with the Customer before issuing an invoice is mandatory. Materials supplied without agreement with the customer are not subject to payment.

The price of works includes all works specified in the terms of reference, work schedule, as well as an additional 30 emergency departures during the entire period of the contract (in case of emergencies). The thirty-first and each subsequent emergency exit shall be paid by the Owner separately according to the agreed invoices of the Contractor.

Appendix No. 1k tz

for maintenance

equipment

List of equipment for t.z.

for maintenance

№	Name of equipment	Installation location	Qty PCS.
1	VTS CLIMA	Exotarium	6
2	supply system ventilation REMAK	Exotarium (Cafe)	1
3	Supply ventilation system REMAK	Vivarium (insects) difficult conditions	1
4	Exhaust system ventilation REMAK	Vivarium (insects) difficult conditions	1
5	Supply ventilation system "Aeromaster"	Vivarium new difficult conditions	1
6	Exhaust ventilation system "Aeromaster"	Vivarium new difficult conditions	1
7	Exhaust ventilation system "SkyStar"	Vivarium new difficult conditions	1
8	Supply ventilation system "SkyStar"	Vivarium new difficult conditions	1
9	Supply and exhaust ventilation "Lissant"	Vivarium old (rodents) difficult conditions	1
10	Supply and exhaust ventilation system WESPER	Primates	1
11	Supply ventilation system REMAK	poultry house	1
12	Exhaust ventilation system "Lissant"	poultry house	1
13	Exhaust ventilation system	Toilets (Central entrance)	3
14	Supply ventilation system REMAK	Department of Contact Animals	1
15	Supply ventilation system REMAK	Vet. clinic	2
16	Mitsubishi Electric Air Conditioner	Exotarium difficult conditions	5
17	Air conditioner LESSAR	Lecture hall	2
18	Air conditioner "Panasonic" cassette type.	Cafe	2
19	Air conditioner LESSAR	Exotarium difficult conditions	3
20	Air conditioner "Mc Quay"	Exotarium difficult conditions	2
21	Panasonic Air Conditioner	Exotarium difficult conditions	2
22	Polar Bear Air Conditioner	Exotarium difficult conditions	2
23	Air conditioner "LG" wall-mounted type/	Administration	3
24	Chiller «CARRIER»	Exotarium	1

Appendix No. 2 to the terms of reference

for the performance of works on complex maintenance of supply and exhaust ventilation systems and air conditioning systems in the premises of St. Petersburg State Unitary Enterprise "Zoo"
List of works performed during the maintenance of the Equipment.

Air conditioner (Split system)

1.1. Indoor unit:
1.1.1. Washing air filters.

1.1.2. Washing and disinfection (alcohol-containing composition) of the heat exchanger, drainage bath and decorative panel.

1.1.3. Checking the reliability of electrical contacts on indoor unit conditioner.

1.1.4. Checking the condition (replacing if necessary) of the fan motor bearings.

1.1.5. Checking the operation of the control panel.

1.1.6. Monitoring the efficiency of the evaporator by the temperature difference between the incoming and outgoing air.

1.1.7. In case of detection of deviations in the operating parameters of the air conditioner, diagnostics are carried out in order to determine the malfunction with the preparation of a defective act.

1.2. Air conditioner (outdoor unit)
(Works are performed once a year when preparing the Equipment for operation in summer period, (April-May, but no later than May 15) and, if necessary, during operation).
1.2.1. Inspection of the air intake grille and condenser frame (cleaning if necessary).

1.2.2. Checking the operation of the motor-compressor for noise and heating.

1.2.3. Checking the reliability of electrical contacts on the outdoor unit of the air conditioner.

1.2.4. Detection and elimination of freon leaks from the refrigeration unit of the air conditioner, if necessary, refueling the air conditioner with refrigerant (refrigerant is included in the price of the Contract).

1.2.5. Checking the integrity of the body and fixtures of the Equipment.

1.2.6. Checking the condition (if necessary, replacement work) of the fan motor bearings.

ventilation unit

(Maintenance is carried out once every three months. Depending on the operating conditions (heavy conditions), the frequency of maintenance is 2 times in 3 months).
2.1. Checking the condition of the filter elements (work on replacing with new ones when a sufficient degree of contamination is reached according to signal lamp and scheduled replacement works 2 (two) times a year, regardless of the degree of pollution: 1 time during the preparation of equipment for operation in the summer - (April-May); 1 time when preparing equipment for operation in the winter period - (September-October).

2.2. Inspection, if necessary, cleaning of air intake grilles (including grease traps of umbrellas).

2.3. Check the condition of the fan motor bearings (replace if necessary).

2.4. Checking the level of noise and vibration (if detected, diagnostics of nodes in order to determine the malfunction with the preparation of a defective act).

2.5. Checking the reliability of electrical contacts.

2.6. Checking the operation of protection and regulation automation.

2.7. Checking the operation of electric actuators of air dampers (if defects are detected in operation, repair or replacement).

2.8. Cleaning (vacuum cleaner), disinfection (alcohol-containing composition) of all ventilation systems ( ventilation units, ventilation ducts, diffusers) is carried out once a year.

2.9. Checking the efficiency of the ventilation unit (carried out once a year).

2.10. Testing air heaters ventilation systems for strength and density, with a pressure of 1.25 from the working one, but not less than 1 MPa (by July 1 of the current year).

2.11. Hydropneumatic washing of heaters.

2.12. mechanical cleaning filters ("mud collectors").

2.13. In winter, control over the temperature of the coolant.

Refrigeration station (Chiller)

(Maintenance is carried out 2 times a year: 1 time during the preparation of the Equipment for operation in the summer - (April-May, but no later than May 15); 1 time during operation - (August-September, no later than September 20).

3.1. Checking the condition of the fan impellers

3.2. Checking the operating currents of the compressor (current clamps).

3.3. Check the condition of the compressor motor for vibration, increased noise.

3.4. Checking phase voltage deviation (tester).

3.5. Checking the electrical starters of the compressor.

3.6. Checking the tightness of the connections on the terminal block, contactors (If necessary, tightening).

3.7. Restoration of damaged thermal insulation.

3.8. Checking the fastening of the equipment, if necessary, tightening the fasteners.

3.9. Condenser fin inspection. Cleaning if necessary.

3.10. Checking the operation of the circulation pump.

3.11. Cleaning oblique filters.

3.12. Checking the operating parameters and efficiency of the station (It is carried out once a year during active operation - (August-September)).

3.13. Change the drier filter 2 times a year.

Terms of Reference - initial design document technical object. The terms of reference further (TOR) establishes the main purpose of the object being developed, its technical characteristics, quality indicators and technical and economic requirements, the prescription for completing the necessary stages of creating documentation (design, technological, software, etc.) and its composition, as well as special requirements.

As a rule, the terms of reference are drawn up in free form without deviating from general rules writing a formal document.
The task as a source document for the creation of something new exists in all areas of activity, differing in name, content, order of execution, etc. OV and VC)

Terms of reference sample:

In other words, the terms of reference should first of all contain the main technical requirements for the product and answer the question of what this system should do, how to work and under what conditions.

As a rule, the stage of drawing up the terms of reference is preceded by a survey of the subject area, which ends with the creation of an analytical report. It is the analytical report (or analytical note) that forms the basis of the Terms of Reference document.

Terms of reference example:

If the customer's requirements can be stated in the report in general view and illustrated with diagrams, the terms of reference should describe in detail all the functional and user requirements for the system. The more detailed the terms of reference are, the fewer disputes will arise between the customer and the developer during acceptance tests.

Thus, the terms of reference is a document that allows both the developer and the customer to present the final product and subsequently check for compliance with the requirements.

________________________________________

As a rule, the Terms of Reference are compiled on the basis of an analysis of the results of preliminary studies, calculations and modeling.

As a result, the Terms of Reference can be addressed to both the contractor and the subcontractor, which in turn becomes like one of the divisions of the company (organization) that forms and composes the terms of reference for the planned work.

Private terms of reference

In the process of designing a complex object (system) that requires the participation of several developers, private technical specifications for subsystems are created.

One of the private technical tasks is the task to create a ventilation and air conditioning system:

In accordance with the received technical requirements the system developer forms the TOR and, at the stage of the technical proposal, performs the decomposition of the object and prepares particular technical specifications for subsystems. After completing all stages of the technical proposal, the developer agrees and approves it with the customer of the system, while they jointly refine the original TOR.

A simplified creation of a ventilation and air conditioning system can be reflected in the request for the design and creation of this system:

After the approval of the technical proposal, the system developer distributes private TK among co-executors, on the basis of which private TK can be developed for subsystems of more than low levels. If there are no second-level subsystems, then the technical proposal for the subsystems is often not carried out, since it was practically completed at the system level.

So another example of a private order for the design of ventilation and air conditioning is a form to fill out:

The technical task is drawn up in in electronic format and sent to the address [email protected] for consideration, selection, processing and calculation.

Selection example for Systemair ventilation units:

3. Precision air conditioner selection form:

_____________________________________________________________________________

And in conclusion, a comic poem written by Gay Karapetyan

"Who are you, give me the technical task,

Who are you?

Who are you, give me the technical task ...

He will try to discuss everything with you,

The report, the audit is trying to foist.

Do you know where the real business begins?

Only where TK appears.

And now look, comrades, attention -

No TK - goodbye!)

___________________________________ __________________________________________

Dear reader, perhaps a contractor or Client - not apply the opportunity surprise contractor or subcontractor of the original terms of reference, which will form the basis beneficial - design andquality - assembly works!

Ventilation design is a complex, multi-stage process, which is based on the interaction between the customer and the contractor. Any misunderstanding or unspecified detail at the approval stage can turn into a fatal error during installation. A detailed specification for the design of ventilation will help to avoid this. This is a document certified by both parties containing the requirements of the customer.

There are two ways:

Terms of Reference (TOR) is the customer. Classic variant when a ready-made TOR is provided to the design bureau. But not all industries have a full-time specialist who can competently, in correct form provide comprehensive information on ventilation requirements.
The specification is made by the designer. A more common option is when the designer partially helps or completely does all the work for the customer.

Stages of drawing up terms of reference

The quality of the designer's work directly depends on the completeness of the information received from the customer. Close cooperation on initial stage is the key to a successful project.

The algorithm for creating technical specifications for the design of ventilation systems is as follows:

First, a questionnaire is drawn up. This is a free-form table that the customer fills out. It describes in as much detail as possible technological process, requirements for temperature, humidity, description of the equipment used in terms of heat and moisture emissions. The questionnaire is signed by the designer and the contractor;
then, on the basis of the questionnaire, a technical task is drawn up. As described above, this can be done by the contractor, the customer, or jointly;
the final stage is the signing of the terms of reference by both parties. And already on the basis of the received document, the ventilation project is calculated.

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