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VHR Energy Recovery Units are controlled with Standard Electronic Controller (SEC), supplied as standard
with the unit. The supply air fan and return air fan are driven as 5 speeds with SEC. Also the electrical heater
(optional) can be controlled by SEC manually or automatically depending on the room set temperature, has a
protection system (optional) against the frost formation at the temperatures below -5
°C, and Pressure Sensor
(optional) for clogged filter.
Functional Electronic Controller (FEC) could be supplied optionally. Moreover to SEC, CO
2
sensor or air quality
sensor could be optionally connected. The fan speed automatically changes by regarding to the sensor value.
All controllers have a digital input for Building Management System or VRF (VRV) System and also have a
digital output for the unit status information.
Table 3.2. Dimensions for VHR ER Models
MODEL
VHR
ER 01
VHR
ER 04
VHR
ER 06
VHR
ER 08
VHR
ER 15
VHR
ER 28
VHR
ER 35
VHR
ER 40
VHR
ER 51
VHR
ER 54
Length [mm]
820
1147
1147
1070
1215
1215
1215
1295
1430
2110
1.650
Width [mm]
550
716
716
710
710
810
910
910
1010
1245
1160
Height [mm]
338
338
438
660
705
760
915
1040
1090
1360
690
Duct Connection
[mm]
a
Ø160
Ø200
400
400
400
500
500
600
600
600
b
200
200
250
300
300
400
400
Weight [kg]
55
65
73
115
140
160
180
230
255
280
Service
Clearance [mm]
550
400
400
400
750
750
850
950
1100
1100
1200
