Victorum Exhaust Air Heat Pump Installation Guide
45
Victorum PrePlumb
1
2
GND
DI7
Outdoor Sensor
Controller
B2
B1
B4
B3
+
-
GND (o)
Rx +(+)
Rx-(o)
+
-
Touchscreen
Transformer (T1)
Controller
GND (o)
Rx +(+)
Rx-(-)
Connecting the Touchscreen
The entire system is controlled via the
Touchscreen- heating, hot water and ventilation.
The touchscreen is typically installed in the
living area (zone 1), where it also acts as the
temperature sensor for that zone.
The recommended location for the touchscreen
is 1.5m off the floor and kept away from sources
of heat and/or cooling like radiators, drafts or
direct sunlight. Local regulations should be
adhered to when planning the location of any
room sensor.
Room thermostats/ sensors need a free flow
of air to operate correctly, so they must not be
covered by curtains or blocked by furniture.
Nearby electric fires, televisions, walls or table
lamps may also prevent the sensor from sensing
the correct temperature.
Always mount the thermostat/ sensor at eye
level. Read instructions fully so you get the best
from the product. Do not push hard on the LCD
screen as this may cause irreparable damage.
The touchscreen requires a separate low
voltage power supply, 24Vdc. A power supply
transformer is pre-installed in the electrical
enclosure.
Connect the Positive (+) and Negative (-) respecting the polarity at both the touchscreen and
transformer.
The touchscreen requires a separate communication cable from the power supply cable. It is
recommended to use Belden 8723 or equivalent, as this cable type incorporates a drain wire which is
imperative for clean communication between the touchscreen and the controller.
The touchscreen communication cable is connected to ‘Rx+’, ‘Rx-’ and ‘Gnd’ on the ‘Display port’
of the controller. The cable core colours must be matched on the rear of the touchscreen as the
communication is polarity sensitive.
It is important that at the electrical enclosure end, the drain wire is connected to the metal chassis via
the ‘Fast-On’ tab provided. At the touchscreen end, the drain wire is to be wrapped around the outer
sheath of the cable and insulated with insulating tape to isolate the connection. The drain is used to
eliminate any electrical noise from the communication.
Electrical
