The following explanations are not intended as technical definitions, but rather are intended to assist the reader in understanding certain terms used on the website.
A
AC blowersA low-pressure fan with an AC motor.
AC motorsan alternating current motor
AHUA ventilation device which usually integrates air, heating and filtration into one combined unit. May also include cooling and heat recovery.
D
Decentralised heat recoveryA system of ventilation that collects heat from exhaust air that would otherwise be lost and reuses such heat by transferring it to the incoming fresh air. Decentralised heat recovery consists of multiple units supplying and extracting from around the home
E
EC/DCElectronically commutated direct current
Electronically commutated or ECA type of motor which historically used a mechanical means of reversing the current flow but which now uses an electronic device to do the same, which is more reliable and more efficient
F
Fan coilA device used to heat or cool a space which includes a water coil and fan for connection to the wider HVAC package within a building
H
HVACHeating, ventilation and air conditioning
Hybrid ventilationA method that combines both passive and mechanical means to form a mixed mode ventilation system
I
IAQIndoor air quality
L
Lo-Carbon ProductsA trademark used to represent our low-energy range of products;
M
MEVMechanical Extract Ventilation: a system of ventilation operated by a power-driven mechanism which extracts air from a room and discharges it only to the external air
MVHRMechanical Ventilation with Heat Recovery: a centralised system of ventilation that collects heat from exhaust air that would otherwise be lost and re-uses such heat by transferring it to the incoming fresh air
Motorised impellersA motor that is supplied complete with an impeller attached to it
N
NVHRNatural ventilation with heat recycling
O
OEMOriginal equipment manufacturer
P
PIVpositive input ventilation: this is an energy efficient method of pushing out and replacing stale, unhealthy air by gently pressurising the home with fresh, filtered air to increase the overall circulation of air in the dwelling
Plate heat exchangerA type of heat exchanger consisting of a series of plates which transfer the heat from one airstream to another
R
RMIRepair, maintenance and improvement
Rotary heat exchangerA type of heat exchanger consisting of a circular honeycomb matrix which rotates in the air stream of a heat recovery device
S
SpecifiersPersons who may specify certain characteristics of products