Therm-X MVHRU HR95
Technical Manual
Page 52 of 59
Version 2.4, 25/09/2020
15.
SPECIFICATION
Therm-X HR95 MVHR Unit Specification
1.
Construction
1.1.
The unit shall generally comprise of an accessible enclosure, high efficient counter flow plate heat exchanger
equipped with condensate tray and modulating face and bypass dampers, supply and extract fans, supply and
extract filters, optional integral electric pre-heater and/or electric or water post heater and integral plug & play
controls.
1.2.
The unit shall be supplied as a single piece assembly.
1.3.
The casing shall be erected from a self-supporting frameless construction, built from double skinned, nominal
50mm deep galvanized sandwich panels manufactured from 0.8mm tick uncoated hot dip galvanized steel. All
panels shall be finished externally with a powder paint in RAL7040 for corrosion protection.
1.4.
The panels shall form a rigid enclosure with internally smooth and crevice free surfaces, reinforced internally
to achieve an outstanding casing rigidity and mechanical strength.
1.5.
The panels shall be packed with high density Rockwool (88kg.m
-3
) with excellent thermal and acoustic
performance (
λ
D
=0.041 W.m
-1
.K
-1
) and fire resistance class A1 to 13501-1 + A1: 2009 - non-combustible.
1.6.
To avoid external air leakage both fixed and access panels shall be sealed with high tightness EPDM closed
cell gasket.
2.
Installation
2.1.
The units shall be suitable for internal free standing installation in an internal or external environment to handle
air that is free of heavy dust, grease, hazardous chemicals or other abrasive pollutants with temperature ranging
from -15°C (-20°C with electric pre heating coil) up to +60°C and a maximum relative humidity up to 90 %.
2.2.
The unit shall be supplied, as standard, with factory mounted base frame for transport and handling and
extended roof type panels to allow external installation when all connections are ducted (un-ducted connections
must be louvered by the installer).