Vortice VORT PLATT EP, Instruction Booklet

Page: 19 / 64

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EXTRACT VENTILATION RATES - VORT PLATT ES EN
Table 1.1 a - Extract ventilation rates
Room Continuous extract
Minimum high rate (l/s) Minimum low rate
Kitchen 13
Total extract rate must be at least
the whole building ventilation rate
in table 1.1 b
Utility room 8
Bathroom 8
Sanity accommodation 6
**
WHOLE BUILDING VENTILATION RATES - VORT PLATT ES
A. In addition, the minimum ventilation rate
should be not less than 0.3 l/s per m
2 internal
floor area (this includes each floor, e.g. for a two-
storey building, add the ground and first floor
areas).
B. This is based on two occupants in the main
bedroom and a single occupant in all other
bedrooms. This should be used as the default
value. If a greater level of occupancy is expected,
then add 4 l/s per occupant.
• The product should be used in conjunction
with Vortice Flexible Aluminium Ducting or
Vortice Rigid Modular Plastic Ducting.
For U.K. Market only:
• The product is designed to Comply with U.K.
Building Regulations Approved Document F1:
Means of Ventilation System 3 – Continuous
mechanical extract. The installation rates are:
**
UK: For sanitary accommodation ONLY, as an alternative, the purge ventilation given in ADF
Appendix B can be used where security is not an issue. In this case the “minimum high extract
rate” for the sanitary accommodation should not be included in the calculation.
Table 1.1 b - Whole building ventilation rates
Number of bedrooms in dwelling
1 2 3 4 5
Whole building ventilation rate
A - B
(l/s)
13 17 21 25 29