Puravent Engineered HVAC Solutions

Puravent Engineered HVAC Solutions: Overview

Our customers like the fact that they can easily call us or email us for help in finding the right standard HVAC products to work best in their particular application. But it goes further than that. Often a solution will not be a simple plug and play product, but a combination of items and controls.

As well as offering various HVAC products on this website, Puravent also do a good deal of problem solving, behind the scenes, putting together HVAC solutions. Not only helping our clients choose the right product type and size for their applications, but also putting together a complete package where required, including the main bit of plant, plus ancillary items including for instance, ducting, filters, louvers, controls.

This is why we are often a specified supplier on tenders for heating, cooling, drying and air cleaning equipment. Understandably, engineering companies and consulting engineers might not want to be tied to a particular manufacturer for the equipment supply. The alternative of specifying Puravent as approved supplier, ensures what is being specified is the suppliers' expertise to select the best equipment to meet the technical specification, rather than a particular brand or product. It is a better way to achieve the supply objective at best value.

Puravent engineered solutions can offer detailed HVAC technical proposals for projects, pricing against technical schedules, design and build capability.

	Pricing schedules	Equipment specification to application	Combination of various products, controls and accessories	Design and build bespoke machines
Heating
Cooling
Drying
Air purification
Air cleaning
Moving air

As well as offering various HVAC products, on this site we also do a good deal of problem solving, behind the scenes, putting together HVAC solutions. Not only helping our clients choose the right product type and size for their applications, but also putting together a complete package, if required, including the main bit of plant, plus ancillary items including for instance, ducting, filters, louvers, controls. The following table shows just where we can offer such detailed assistance.

	Ducted, In duct, piped	In Air Handling Unit (AHU)	In Building or Room (Installed)
Heating	LPHW heater batteries single phase heater batteries 3 phase heater batteries Ductable electric space heaters Gas fired heaters Oil fired heaters	Heat recovery wheels	Radiant gas heaters Electric radiant heaters gas-fired space heaters LPHW radiant panels
Cooling	Water fed cooling coils Direct Expansion (DX) cooling coils	Adiabatic cooling panels Humidification	Evaporative coolers Monoblock air conditioners Split air conditioners Window air conditioners Concealed air conditioners
Drying and Dehumidification	Desiccant process dryers Desiccant dehumidifiers Mist eliminators High performance aerosol separators	Desiccant wheels Mist Eliminators	Wall mounted dehumidifiers Through the wall dehumidifiers Point of extract high performance aerosol separators
Air Purification	UV lamp array for biological treatment UV lamp array for chemical/odour treatment	UV lamp array for biological treatment UV lamp array for chemical/odour treatment Coil cleaners	Wall mounted air purifiers ceiling mounted UV air purifiers
Air Cleaning	Electrostatic air cleaners Oil mist eliminators	Electrostatic air cleaner sections Air filter sections within modular air handling units sections	Ceiling mounted air cleaners Ceiling mounted electrostatic air cleaners
Moving Air	Bifurcated fans Centrifugal fans Axial fans	Fans within modular air handling unit components	Wall mounted fans Basket fans Extract hoods On demand kitchen ventilation control Flame arrester baffles ( DIN 18869-5, DIN EN 16282-6 )

Puravent engineered HVAC solutions

Puravent engineered HVAC solutions

Heat Load	Watts	BTU
Average The Room Is A Normal Residential Room, Office, Reception Area Or Similar, Where There Is Not Overly Crowded With People, Computer And Office Equipment.
Above Average There Are Factors That Contribute To Additional Heat Being Generated In The Room E.G. Strong Lighting, Overcrowding With People And Office Equipment, Conservatory Type Room, Or Flat Roofed Room.
High There Are Factors That Contribute To A High Heat Load In The Room. E.G. Commercial Cooking, Much Computer And Server Equipment, Switchgear, Temporary Building With Thin Walls And Flat Room, Plain Glass Conservatory.

Variable	Units	Notes/Guidance
System Airflow	M3/Hr	If you have it in cfm then multiply your cfm value by 1.7 to get m3/hr
Average Combined Pressure Drop Of Filters Of Higher Than F6 Efficiency	Pascals	F8 bag filters pressure drop - typical clean clean to dirty, 160 - 250 Pascals F9 compact filters pressure drop - typical clean to dirty, 160 - 350 Pascals H10 HEPA filter pressure drop - typical clean to dirty, 250 - 600 Pascals 9.8 Pascals = 1 mm wg, & 249 Pascals = 1 inch wg
Carbon Filters Pressure Drop	Pascals	For compact type carbons pressure drop between 100 - 150 Pa Bonded carbon panels typically 150 - 170 Pa Loose granular carbon panels typically 130 Pa
Annual Operational Hours	Hrs/Annum	8760 hours in a year If operating for 5 days a week, excluding public holidays, for 12 hrs/day = 3000 hrs
Cost Of Power	Pence Per Kwh	Huge variance in what different companies pay. heck your last bill to be sure, otherwise put in 10p
Fan Efficiency	(As Decimal Value, Eg 100%=1)	Would typically be around 60%, so if you don’t have specific information use 0.6
Fan Motor Efficiency	(As Decimal Value, Eg 100%=1)	Larger motors should be around 90%, so if you don’t have specific information use 0.9

The Total Average Pressure Drop Over Your Higher Efficiency Filters And/Or Carbon Filters Is;		Pascals
This Pressure Drop Is Costing In Energy Alone	£	Per year
It Is Probable That A Sanuvox In-Duct System Could Break Down The Biological, Chemical And Odourous Contaminants On This Air Flow For Between 16 And 25% Of This Running Cost	£	Lower energy cost estimate of an equivalent Sanuvox system (16%)
	£	Higher energy cost estimate of an equivalent Sanuvox system (25%)

Type Of Building	Kw Range		BTU Range
Sports Centres
Retail Premises
Office Premises
Small Industrial Unit
Medium Industrial Units
Larger Industrial Buildings
School/Community Halls
Churches

Room/building volume	m3
Temperature differential (deltaT °C)	°C

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Puravent Engineered HVAC Solutions

Puravent Engineered HVAC Solutions: Overview

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