Cabinet Electrical Installation - Carel humiFog direct UA040DD101 User Manual

ENG
2.2.2 Feedwater characteristics
humiFog Direct requires demineralised water, so as to ensure:
•
minimum maintenance;
•
no blockages of the nozzles;
•
no dust (the droplets that evaporate will not leave mineral salts in the
environment);
•
improved hygiene.
The use of demineralised water is also required to comply with standards
UNI8883, VDI6022 and VDI3803.
humiFog Direct must only operate on demineralised water that falls
within the limits listed in the following table. Normally, these values can
be obtained by reverse osmosis or nanofiltration of the feedwater.
Specific conductivity
pH
Total hardness (TH)
Temporary hardness
Chlorides (Cl)
Iron + manganese (Fe + Mn)
Silicon dioxide (SiO2)
Chlorine ions (Cl-)
Calcium sulphate (CaSO4)
2.2.3 Cabinet drain connection
The drain point located at the bottom of the cabinet must be connected
externally (3/4" GAS F fitting) to an open discharge with drain trap.
Also remember that the cabinet cannot be installed on the floor without
a support that keeps the cabinet raised by at least 20-30 cm.
2.2.4 Blower water supply line
With reference to the high-pressure hoses provided by CAREL (inside
diameter Ø = 6.3 mm), in order to ensure correct operation of the
atomisation system, the water supply line to the blowers in a single zone
must respect the following maximum lengths:
Model Rated pump
capacity [L/h]
UA040DD2** 40
UA050DU2** 50
UA040DD1** 40
UA050DU1** 50
UA080DD2** 80
UA090DU2** 90
UA080DD1** 80
UA090DU1** 90
* The values shown refer to the water circuit in a single zone and the last
blower on the line.
Contact CAREL for longer water lines.
"humiFog direct" +0300073EN rel. 1.2 - 02.05.2019
25 - 80 µS/cm
5.5 – 8.5
0 - 25 mg/l CaCO3
0 - 15 mg/l CaCO3
0 - 10 ppm Cl
0 mg/l
0 - 1 mg/l
0 mg/l
0 - 5 mg/l
93
3/4"G f
Fig. 2.e
Maximum hose length supplying
the blowers* [m]
25
50
50
100

2.3 Cabinet electrical installation

The cabinet must be connected to the mains by the user.
230 V 50 Hz for cabinet CE version UA***DD*01
120 V 60 Hz for cabinet UL version UA***DD*01
The connection must be compliant with local standards, using a suitably-
sized cable. A three-wire cable (line + neutral + earth/ground) must be
connected to the three terminals (L + N + GR).
Cabinet terminal
L
N
GR
Important: fit an external power switch on the humidifier power supply
line to isolate the power supply, and a TT earthing system with earth fault
current of 30 mA.
No additional wiring is required to the cabinet terminal block, except
for the power supply to the blower fans, using the terminals. For the
electrical connections from the cabinet to the blowers, see chapter 3.4.
2.3.1 Fuses
The following table lists the technical specifications of the fuses supplied
for the different cabinets:
Fuse Single-zone cabinet
F1 1 A (upstream of the transformer)
F2 1 A (upstream of the transformer)
F3 4 A (downstream of the transf.)
F4
F5
F6
Fuse Single-zone cabinet
F1 2.5A (upstream of the transformer) 2.5A (upstream of the trans-
Tab. 2.a
F2 2.5A (upstream of the transformer) 2.5A (upstream of the transf.)
F3 4 A (downstream of the transf.) 2.5A (upstream of the transf.)
F4
F5
F6
Fuses F1, F2, F3*, F4* are installed in the fuse carriers (Fig. 2.h).
Fuses F3, F5*, F6* are installed on the top surface of the corresponding
transformers (components no. 17 in Fig. 1.d).
* indicates the P/N for the fuse on the two-zone cabinet.
12
Fig. 2.f
Power cable
L / F (line)
N / W (neutral)
GR / PE (earth)
Fig. 2.g
Two-zone cabinet
1 A (upstream of the transformer)
1 A (upstream of the transformer)
1 A (upstream of the transformer)
1 A (upstream of the transformer)
4 A (downstream of the transf.)
4 A (downstream of the transf.)
Tab. 2.b
Two-zone cabinet
former)
2.5A (upstream of the transf.)
4 A (downstream of the transf.)
4 A (downstream of the transf.)
Tab. 2.c