12
H
EXTERNAL SENSOR CONNECTIONS
Select the required External Sensors.
Ambient Response
Humidity Sensor
(56 35 50)
Ecotronic
Humidity Sensor
(56 35 32)
Visionex PIR
(45 07 26)
I
FROST PROTECTION.
Standard Frost Protection.
When the external intake air temperature is between 0ºC and -5ºC the defrost mode will automatically activate.
This mode will reduce the supply airflow rate and increase the extract airflow rate to prevent frost forming on
the heat exchanger.
When the external intake air temperature is below -5ºC the defrost mode will automatically activate. This
mode will automatically switch off the supply fan, the extract fan will continue to run at a reduced rate to
prevent frost forming on the heat exchanger.
Open flue appliances
(F/FB
Models Only).
In installations where a negative
pressure within the dwelling is
not permitted, a link must be
fitted between the JP 200
terminals on the HRU Control
Panel. When this link is in
position and the external air
temperature drops below -1ºC
the summer bypass will open
and the supply fan will continue
to run, allowing external air to
bypass the heat exchanger and
enter the dwelling.
J
SUMMER BYPASS.
The Bypass damper activates when the outside air temperature is equal to or below the pre-set ‘
Comfort
Temperature
’ (adjustable between 16° and 30°C). The unit’s internal damper opens allowing the cooler fresh
air from the outside to bypass the Heat Recovery Cube and reduce the internal temperature to the required
pre-set ‘
Comfort Temperature
’.
When the inside air temperature reaches the pre-set ‘Comfort Temperature’ the Bypass Damper closes.
L N
JP 200
CON 7
BOOST
HRU Control Panel
A B C D
JP 200
Blue Link
L N
JP 200
CON 7
BOOST
HRU Control Panel
A B C D
5
4
3
N
L
5
4
3
N
L
L
N
3A FUSE
~
1 Phase Supply
(220-240V 50Hz).
A B C D
L.C.D Controller
BLUE / WHITE
ORANGE / WHITE
WHITE / ORANGE
WHITE / BLUE
