Ampelair Industrial Ventilators

Overview

The Building Code of New Zealand sets out minimum ventilation requirement for industrial and commercial premises. However depending on the building use this can be less than adequate. It is generally recognised that workplace efficiency is improved when ventilation matches the interior conditions. Extracting oppressively hot air and fumes minimises worker lethargy, loss of concentration, and consequent loss of productivity. Even in colder weather, effective air circulation improves the workplace environment, so your investment works all year.

Round Vane (RV) Industrial Range

Ampelair RV Industrial Ventilators are engineered and constructed to require very little maintenance even after years of service. With their low profile design and aluminium construction, Ampelair ventilators are designed to give optimum efficiency through the angle of the vane and the enlarged surface area. Even in cross winds the vane shape will retain its rotational strength.

Features

Designed for farm and light commercial Buildings
Two sizes, 500 mm & 600 mm
Complete with variable pitch base for quick and easy to installation
Strong, lightweight construction Alloy Construction
Powder coat finish available to suit your roof colour.
Dual bearing system.
Manufactured to provide long trouble free operation in Industrial and Commercial applications

Dampers

Manual and Electronically operated dampers are available for most sizes. Please contact your nearest Ampelite office for more information.

Warranty

Ampelair Round Vane (RV) ventilators feature a 10 year warranty. For full warranty details, please download a copy of the Ampelair RV brochure or contact your nearest Ampelite office.

MODEL	THROAT	VENTILATOR HEAD		VARIABLE PITCH BASE
		WIDTH	HEIGHT	WIDTH	HEIGHT
RV 500	500 mm	640 mm	320 mm	750 mm	190 mm
RV 600	600 mm	730 mm	390 mm	800 mm	210 mm

Ampelair ventilators are designed to give optimum efficiency with very little maintenance

Round Vane (RV) Industrial Range

Straight Vane (SV) Industrial Range

Ampelair SV Industrial Ventilators suit new installations or replacements for large commercial and industrial applications. Aluminium construction with throat sizes 600mm to 900mm, every industrial building large or small needs to keep air circulating and keep temperatures to a comfortable level. Ampelite SV ventilators are an effective, reliable, maintenance free ventilation solution. Using only the power of the wind they extract stale air and allow fresh air to circulate.

Features

Designed for large commercial & industrial buildings
Variable pitch base on all models for quick and easy installation
Strong alloy construction with fully enclosed stainless steel bearings

Dampers

Manual and Electronically operated dampers are available for most sizes. Please contact your nearest Ampelite office for more information.

Warranty

Ampelair Straight Vane (SV) ventilators feature a 15 year warranty. For full warranty details, please download a copy of the Ampelair SV brochure or contact your nearest Ampelite office.

MODEL	THROAT	VENTILATOR HEAD		VARIABLE PITCH BASE
		WIDTH	HEIGHT	WIDTH	HEIGHT
SV600	600 mm	770 mm	450 mm	900 mm	280 mm
SV900	900 mm	1100 mm	930 mm	12000 mm	390 mm

Ampelair ventilators are designed to give optimum efficiency with very little maintenance

Straight Vane (SV) Industrial Range

Vent Capacity Table - applies to both ROUND and STRAIGHT vanes

VENT CAPACITY TABLE
STACK HEIGHT METRES	WIND SPEED Km/hr	TEMP DIFF °C
STACK HEIGHT METRES	WIND SPEED Km/hr	TEMP DIFF °C	150	300	500	600	900
3	6	6	0.04	0.15	0.35	0.61	1.62
		12	0.04	0.16	0.36	0.63	1.67
		18	0.04	0.17	0.38	0.66	1.76
	8	6	0.05	0.18	0.42	0.73	1.93
		12	0.05	0.18	0.43	0.74	1.1.96
		18	0.05	0.19	0.45	0.79	2.09
	12	6	0.07	0.27	0.63	1.09	2.89
		12	0.07	0.28	0.64	1.11	2.94
		18	0.07	0.28	0.64	1.12	2.96
	16	6	0.08	0.34	0.77	1.34	3.56
		12	0.09	0.34	0.79	1.38	3.66
		18	0.09	0.35	0.81	1.41	3.74
6	6	6	0.04	0.16	0.36	0.63	1.67
		12	0.05	0.19	0.42	0.73	1.94
		18	0.05	0.19	0.43	0.75	1.99
	8	6	0.05	0.18	0.42	0.74	1.96
		12	0.05	0.19	0.44	0.76	2.03
		18	0.05	0.2	0.46	0.8	2.12
	12	6	0.07	0.28	0.64	1.11	2.94
		12	0.07	0.29	0.66	1.14	3.03
		18	0.07	0.31	0.71	1.24	3.29
	16	6	0.09	0.34	0.79	1.38	3.66
		12	0.09	0.35	0.81	1.41	3.75
		18	0.09	0.37	0.84	1.47	3.9
9	6	6	0.04	0.17	0.38	0.66	1.76
		12	0.05	0.18	0.43	0.75	1.99
		18	0.05	0.21	0.48	0.84	2.23
	8	6	0.05	0.2	0.45	0.79	2.09
		12	0.05	0.21	0.46	0.8	2.12
		18	0.06	0.23	0.53	0.92	2.45
	12	6	0.07	0.28	0.64	1.12	2.96
		12	0.08	0.3	0.71	1.24	3.29
		18	0.08	0.32	0.74	1.28	3.4
	16	6	0.09	0.35	0.81	1.41	3.74
		12	0.09	0.37	0.84	1.47	3.9
		18	0.09	0.37	0.86	1.49	3.95

BUILDING TYPE	RECCOMENDED AIR CHANGES PER HOUR
Warehouses	4 to 8
Factories and Workshops	5 to 8
Gyms Tennis and Squash Courts	7 to 10
Assembly Halls, Garages	10 to 15
Toilets	12 to 15
Laundries	20 to 40
Stables, Piggeries and Poultry	20 to 50
Bakeries, Boiler Houses	30 to 40

Number of Vents

Calculations to decide the number of vents.

Determine the volume of the building. (Fig. 1)
Volume of section A = 0.5 x L x W x Ha
Volume of section B = L x W x Hb
Total building volume = Volume of section A + Volume of section B
Note: For factories, the combined volume A + B should be used.
Where Volume B is air-conditioned, only Volume A is used to calculate the number of ventilators required. No air should be drawn from the air conditioner space.
Using ventilators in the ceiling space of air conditioned building reduces the load on the air-conditioning plant and helps reduce power consumption.
Select the number of ventilators required:
METRIC = V x A/ch
EX/c x 3.6
Where:
V = volume of building or roof space
A/ch = air changes per hour
EX/c = Exhaust capacity of ventilator

Calculations to decide the number of vents

Consideration should be given to the space occupied by stored goods or machinery. The adjustment to volume can reduce the number of vents required by up to 50%.

Industrial Ventilators