I
NTRODUCTION
H
EAT
RECOVERY
UNIT
en-8
en
1.3.5 ERP product information
PRODUCT
SERIES
HR
Manufacturer
Biddle bv
Type
Non-residential ventilation unit/Bi-directional ventilation
unit (NRVU/BVU)
Drive
Variable Speed Drive (VSD)
Heat Recovery System
Regenerative Plate Heat Exchanger
TYPE
HR25
HR35
Thermal efficiency of the heat recovery
η
t,nrvu
78.8%
79.2%
Nominal flow rate (max.)
q
nom
0.69 m
3
/s
0.97 m
3
/s
Effective power consumption (max.)
1.56kW
2.64kW
Specific fan power (max.)
SFP
int
1214 W/m
3
/s
1389 W/m
3
/s
Filter area velocity (typical/max.)
1.9/2.6 m/s
1.5/2.4 m/s
Nominal external pressure (max.)
Δ
p
s,ext
200 Pa
300 Pq
Internal pressure drop (ventilation) (max.)
Δ
p
s,int
350 Pa
440 Pa
Internal pressure drop (additional) (max.)
Δ
p
s,add
0 Pa
0 Pa
Static fan efficiency
η
es
45.3%
53.3%
External leakage rate (max.)
0.23%
0.23%
Internal leakage rate (max.)
0.09%
0.09%
Filter energy performance (typical/max.)
273/1355 kWh/
year
779/1906 kWh/
year
Sound level housing (typical/max.)
L
wa
63/74 dB(A)
55/66 dB(A)
GENERAL
INFORMATION
Visual filter warning
error message on
b-touch
control panel,warning lamp (acces-
sory), BMS alarm
Regularly replace the filters for optimum perfor-
mance and energy efficiency of the unit
Dismantling instructions
see