Appendix No. 1 to the contract No. __________ dated _____ 2013

TERMS OF REFERENCE for design

Development working documentation systems of general ventilation, air conditioning of the apartment located at:

Moscow city, ____________________________

1.General data:

1.1 Basic requirements for the project:

1.1.1 Complete working documentation based on :

architectural drawings

Operating building codes and rules

Approved terms of reference

1.1.2 The working documentation includes:

Calculation part, drawings, isometric diagrams and specification of systems Ventilation, Air conditioning;

1.1.3 In the project, use imported equipment and Russian components:

- Ventilation equipment

a) Supply unit - Systemair (Sweden). brand TA

b) Exhaust fans - Systemair » (Sweden) in a noise-attenuating housing

- Air conditioning system

a) outside and indoor units- "Daikin" (Japan) channel low-pressure

- Humidification system

a) humidifier - ultrasonic Carel (Italy)

- Air Filtration System

a) additional carbon-photocatalytic filter with mechanical and biological air treatment

Engineering Communication

Air ducts of the ventilation system shall be performed on the basis of __SNiP 41-01-2003_

Refrigeration pipelines - copper pipes"Majdanpek" (Serbia).

- thermal insulation engineering communications

a) Thermal insulation type "Penofol-S"

1.2 Initial data:

1.2.1 total area premises: _______ m 2

1.2.2 Served system spaces supply ventilation: Living spaces

1.2.3 Served system spaces exhaust ventilation: bathroom, kitchen, dressing rooms, laundry

1.2.4 Served areas of the air conditioning system: living quarters, kitchen

1.2.5 Placement of supply and exhaust units of the ventilation system: small loggia (room No. 20), exhaust systems kitchens and bathrooms next to communal mines

1.2.6 Placement of outdoor units of the air conditioning system: On the facade of the building under the windows of room. No. 11 and room. #6

1.2.7 Placement of indoor units of the air conditioning system: non-residential premises

GENERAL PROVISIONS

It is necessary to provide a supply and exhaust ventilation system with humidification, cooling and heating for residential premises; exhaust systems for bathrooms, dressing rooms, the upper zone of the kitchen and others technical premises. Provide a ducted air conditioning system in all residential premises.

Provide an extract from the kitchen umbrella and the kitchen area.

Technical description

2. VENTILATION

The supply and exhaust ventilation system should provide preliminary cleaning air in EU-5 class filters, in winter period be heated in a heater up to +22 0 C, in summer - cooled down to +24 0 C. Air is heated electric heater(power selection should be performed taking into account the average annual air parameters adopted for Moscow and the region). Also provide a humidification system supply air ventilation systems.

Air is supplied to the premises by ventilation grilles with an air flow unit of the Arktos brand. Air intake is carried out through the intake grate located on the small loggia pom. No. 20.

3. AIR CONDITIONING

Select equipment according to the performance required for the complete assimilation of heat gains, including from lighting, appliances and other heat sources, and maintaining the required comfortable parameters of indoor air temperature.

Type of air conditioning system - channel, 2-pipe.

The indoor air temperature in the premises must be controlled from a fixed wired control panel.

Drain the condensate from the indoor units to the nearest sewer riser through a dry water seal.

The drainage system should be made of a rigid (polymer) pipe with the organization of fasteners to prevent its deflection.

4. MUTE

Air intake through the intake grille should be carried out with a noise pressure of no more than 45-50 dB(A)

Sound pressure level:

a) internal equipment 30-35 dB, at the outlet and intake of ventilation grilles no more than 25-30 dB(A)

b) outdoor equipment not more than 48 dB(A)

Install silencers at the inlet and outlet of air conditioning and ventilation equipment.

NOTE:

In the absence of complete data of the design assignment, the detailed design will be executed on the basis;

TERMS OF REFERENCE FOR THE DESIGN OF VENTILATION AND AIR CONDITIONING SYSTEMS

to contract No. ________ dated "____" ________ 20__

(Object name)

(Address of the object)

(Full name of the customer/authorized representative)

(contact number)

1. Technical task

Develop

 design

 working

documentation under the section "General ventilation and air conditioning".

Calculate systems:

 general ventilation  local ventilation

 air conditioning  smoke ventilation

Calculations of systems should be made in accordance with the Normative and technical documentation, SNiP "Heating, ventilation and air conditioning".

Take the parameters of the outside air in accordance with: SNiP * "Construction climatology", other documents, (specify which ones)

Indoor air parameters according to p. 

A) according to SNiP

B) Winter temperature ____________ С ° humidity _____________%

Summer temperature ____________ С° humidity _____________%

2. Object parameters (buildings, premises)

2.1. Building area (complex of buildings, premises): _____________ m²

2.2. Ceiling heights according to  :

A) special: __________ mm;

B) take according to the section of the building, paragraphs. 7.1. "Architectural Solutions".

2.3. Zapolotochnoe space _________ mm.

2.4. Type of ceilings according to par.  :

A) special _________________________________________________________________________

B) take in accordance with paragraphs. 7.1. "Architectural Solutions".

3. Data for calculation

3.1. The number of people in the premises is taken in accordance with paragraph.  :

A) by the number of seats on the furniture layout plan, in accordance with paragraphs. 7.1.;

B) according to technological solutions for the object (building, premises), paragraphs. 7.3.;

C) by written agreement with the Customer signed by an authorized representative.

3.2. The number and capacity of pieces of equipment to be taken in accordance with paragraph.  (fill in the correct letter):

A) according to technological solutions for the object (building, premises) of paragraphs. 7.3.;

B) by written agreement with the Customer signed by an authorized representative.

3.3. The areas of the premises are taken in accordance with paragraph.  (fill in the correct letter):

A) according to the table of explications of premises, paragraphs. 7.5.;

B) other _____________________________________________________________________________

4.1. The parameters of the ventilation system should be taken according to the highlighted points:

 Supply and exhaust ventilation with mechanical stimulation.

 With heat recovery.

 With air recovery.

 Wiring of air ducts of ventilation systems in the overhead space.

 Air handling units with a cooling section (specify the type of refrigerant, paragraph 5.1.).

 Air handling units with a humidification section according to p.  (fill in the correct letter):

A) electric

B) water;

C) another ________________________________________________________________________.

4.2. Distribution devices according to par.  (fill in the correct letter):

A) ceiling diffusers;

B) unregulated ceiling grids;

C) adjustable ceiling grids;

D) unregulated wall gratings;

D) adjustable wall grilles.

4.3. The location of the supply and exhaust equipment in accordance with paragraph.  (fill in the correct letter):

A) ceiling space;

B) ventilation chamber(indicate on the plan)

 Availability of automatic fire alarm equipment

6. List of documentation to be handed over to the Customer

6.1. Explanatory note

6.2. Working drawings

6.3. Equipment Specifications (Main)

6.4. Specifications of equipment and materials

6.5. Assignment to the builders

6.6. Task for electricians

6.7. Assignment to thermal workers.

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.

7.3. Technological solutions for the object.

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 of 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. Room explication table.

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.

8.2. All changes to the terms of reference are formalized by an additional agreement to the contract.

9. Legal addresses and details of the parties

10. Signatures of the parties

From the customer From the contractor

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:

1. 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.
2. 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.

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:

1. supply;
2. exhaust;
3. Supply and exhaust;
4. Monoblock;
5. Typesetting.

Stacked ventilation

Because the natural ventilation is arranged together 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 mines for laying ventilation ducts- We will mainly focus on 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.

Because the 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:

1. Calculation of the air exchange rate for each room or work area;
2. Calculation of the required volume of supply masses;
3. Calculation of the material and design of air ducts, taking into account friction and resistivity execution material;
4. Calculation of the speed of movement of air masses through the channels;
5. Calculation of productivity and type of equipment;
6. Selection of the optimal route for laying channels and placing switchgears;
7. Designing a scheme for connecting the ventilation network to the power supply;
8. 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 begins. 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:

1. Location ( temperature regime region including)
2. Overall dimensions of the room / s (with the application of the plan of the building or structure);
3. Wall, floor material important parameter regarding the selection of materials for the execution of air ducts and risk assessment);
4. Data on the number of people in the premises and the number of jobs;
5. 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):

1. Description of initial data for designing and carrying out works;
2. Technical requirements for the process of installation and commissioning of ventilation;
3. indication required documents, certificates and licenses; which the potential contractor must provide;
4. Indication of the date of submission of the proposal for the cost of work;
5. Indicates the need to submit a detailed or general plan performance of work;
6. Requirements for subcontractors and suppliers;
7. Requirements for the manufacturer of equipment and devices (if any);
8. Estimated dates of completion and delivery of works;
9. 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