VENTILATION AND AIR CONDITIONING DRAWINGS
Shop drawings of ventilation and air conditioning system has been made.
The techniсal decisions accepted in the working design correspond to the requirements of ecological, sanitary - hygienic, fire-prevention and other norms of Russian Federation, and provide safe for life of the people, operation of object at observance of the measures, stipulated by working drawings. The present part is performed on base of design stage "P‘, tender documentation, fire-fighting technical conditions and heat supply technical condition.
All building systems should be installed in accordance with requirements of 3974 and SNiP 31.05.01-85* 'Internal sanitary systems' and in accordance with recommendation and requirements of equipment manufactures.
VENTILATION AND AIR CONDITIONING
Installation of ventilation and air conditioning systems is provided in the design far providing comfortable temperature and humidity conditions in rooms of buildings all-the-year-round.
Air handling units are installed in the 9th floor building and in the 7th floor building for providing fresh air supply in office rooms. The quantity of air supplying in office rooms is based on air supply 60m3 per hour for 1 person, in view of station 1 person per 8m2. Ventilation network of these systems is performed taking into account free planning. Branches of supply and exhausting main with installation of fire-prevention valve, throttle and variable consumption motorized valve are getting drop off in the supposed rent area. Pressure is provided at the rate 200Pa on each branch in the supposed rent area for future ventilation network run. Ventilation network run in the rent area shall be performed by renters with working out of separate design.
Division on areas is chosen according to the approximate square division m renters (according to the tender), which will be served by AIRU.
For atrium is provided separate air supply system, which is combined with heating and cooling systems. Air is given in the height and lower parts of atrium (in the ratio 2 per 1) and moved away from height part. For saving of thermal energy in the cold period recirculation of moved away air is provided.
For restaurant and premises for restaurant, serve transit exhaust mains and place on the roof for the following installation of exhausting ventilating equipment are provided. AIRU and place at the air-ventilation chamber fan then installation are provided for these rooms.
AIRU is provided for store zone, which provides supplying of prepared air. The quantity of air supplying in office rooms is based on air supply 20m3 per horn fen 1 person, in view of station 1 person per 2m2. Ventilation network of these systems is performed taking into account free planning. Branches of supply and exhausting man with installation of the-prevention valve, throttle and variable consumption motorized valve are getting and drop off in the supposed rent area. Pressure is provided at the rate 2FXPa m each branch in the supposed rent area for future ventilation network run. network in the rent area shall be performed by renters with working out of separate design.
For underground parking and plant rooms separate ventilation systems are provided for each area. Installation of the dumpers ЕП20 ( duct from air intake canal up to provided for AHU, which serve rooms in different the sections, but connect up to common air intake as compensating measure.
The dumpers are provided in all ducts in intersection. Transit sections of duct are covered by flame retardant for achievement the-resistance rating not less than:
-El 60 within its the section,
-El 180 outside its the section.
Fresh air diversion should be performed m the height not less than 2m from ground level. Distance between air intake and air outlet shall be not less than 10m.
All air intake and air outletcanals and shafts should be heat-insulated by Rockwool 100mm with protective aluminum foil for condensate prevention. All ducts of inlet systems with chillers shall be insulated by Armaduct thickness 13mm.
Ventilating equipment for offices
For offices serve combined extract and input systems are provided. Structure and assembling of these systems allows to clear incoming air up to filtration class EU7. Air is coded and given in offices at temperature +18 degree C during warm period. Air heats up to temperature +20 degree C during warm period. Relative humidity of inlet air keep constant not less than 30%. These combined extract and input units are assembled with frequency regulator and reserve electric motors.
Ventilating equipment for store serve
For store serve combined extract and input systems are provided. Structure and assembling of these systems allows to clear incoming air up to filtration class EU7. Air is cooled and given in offices at temperature +18 degree C during warm period. Air heats air to temperature +20 degree C during warm period and if it is necessary it is moisten. Relative humidity of inlet air keep constant not less than 30%. These combined extract and input units are assembled with frequency regulator art reserve electric motors.
Ventilating equipment for restaurant serve
Free space in Ventilation chamber on the 1-st floor is provided for the following location of the equipment for air processing by operator of public catering establishment. Heat and coldness supply is provided in Ventilation chamber for the following supply of the Ventilation equipment. Heat and coldness charges are indicated on drawings.
Ventilating equipment for underground parking serve
For underground parking serve combined extract and input systems are provided. Structure and assembling of these systems allows to clear air up to filtration class EU7. Air is given in the underground parking with temperature +7 degree C for keeping of temperature in the underground parking on the level +5 degree C. Forced-air heating by means of fan heater are used. Combined extract and input systems has in flier assembling reserve electric motors.
Additional ventilating equipment
Vacuum fans which has index TEF in their name, they are installed on the roof and intend for exhaust from possible mini- kitchens and lavatories in the rent area. Exhaust volume is 400m2/hour from each area; reserve pressure for future ventilation network is 150Ра. Exhaust volume from mini- kitchens shall be specified by renter on finishing stage of this area according to the preseme/ absence of mhi- kitchen or lavatory on his square. Air charg shall be regulated by hand regulation valves, which are installed on the floor branch. In case of absence of mini- kitchen or lavatory the floor duct should be plug.
Ventilating equipment for atrium serve
Installation of combined extract and recycling unit is provided for Ventilation, heating and cooling of the atrium. At is given in atrium at temperature +33 degree C during winter period for keeping of temperature in the atrium on the level +20 degree C. Recirculation of exhaust air from atrium is used in AHU for teat economy. Air recirculation rate may change depending on outside air temperature, but at any moment quantity of outside air should not be less than 6400m3/hour.
Air is given at temperature +14 degree C during warm period. During warm period the following temperatures should be hold in atrium: +30 degree C under roof, +28 degree C in the central area, +24 degree C where visitors are being.