Instruments And Alarms - CLIMAVENETA accurate ax Installation - User - Maintenance Manual

INSTRUMENTS AND ALARMS

The air-conditioner is fitted with the following instruments:
- High pressure switch/switches with manual reset (one on
each refrigerant circuit);
- Low pressure switch/switches with automatic reset (one
on each refrigerant circuit);
- Air flow sensor and dirty filter sensor (differential pressure
switches);
- Temperature sensor or room temperature and humid-
ity sensor (on the units with humidity control);
- Outlet air limit temperature sensor
- Safety valve
Some versions, in addition, have the following sensors:
- Safety thermostat (in the versions with electric heaters),
with the reset button accessible on the right-hand side of the
electrical panel.
1 main board
2 disconnecting switch
3 electric heaters
4 radial fan and inverter
5 compressor
6 dewatering filter
7 liquid valve
8 flow indicator
9 thermostatic valve
10 humidifier
11 dehumidification valve
12 hot water coil valve
13 temperature-humidity probe
The pressure test points for the air flow and dirty filter differen-
tial pressure switches are connected in parallel; (on OVER units)
- the positive pressure test point is located on the right-hand
side of the base of the unit;
- the negative pressure test point is located in a position for
measuring the pressure upstream of the fan; (on UNDER units)
- the positive pressure test point is located behind the electrical
panel, upstream of the air filter;
- the negative pressure test point is located in a position for
measuring the pressure upstream of the fan;
ACCURATE AX - AW - AD - AT - AF
In addition, the following optional devices may be available:
- Flood sensor made up of:
a) device to be inserted in the special socket on the electrical
panel;
b) Flood sensor (or sensors, connected in parallel) to be posi-
tioned at the points monitored;
- Fire and smoke sensors;
- Hot water temperature sensor, for reading and enabling
post-heating with hot water;
2
8
9
11
10
12
Pressure
test point
Q.E.
FRONT OF
THE UNIT
Pressure
test point
3
4
1
13
7
5
6
Pressure
Q.E.
test point
FRONT OF
THE UNIT
Pressure
test point
RIGHT-HAND SIDE
RIGHT-HAND SIDE
EN 51