Carel humiFog direct, User Manual

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12
ENG
"humiFog direct" +0300073EN rel. 1.0 - 31.03.2017
2.2.4 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
5 - 80 µS/cm
pH 5.5 – 8.5
Total hardness (TH)
0 - 25 mg/l CaCO3
Temporary hardness
0 - 15 mg/l CaCO3
Chlorides (Cl)
0 - 10 ppm Cl
Iron + manganese (Fe + Mn)
0 mg/l
Silicon dioxide (SiO2)
0 - 1 mg/l
Chlorine ions (Cl-)
0 mg/l
Calcium sulphate (CaSO4)
0 - 5 mg/l
2.2.5 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.
235
93
3/4"G f
Fig. 2.e
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.
2.3 Cabinet electrical installation
The cabinet must be connected to the mains by the user.
230 V 50 Hz for cabinet CE version UA***DD*00
120 V 60 Hz for cabinet UL version UA***DU*00
The connection must be compliant with local standards, using a suitably-
sized cable.
A three-wire cable (line + n earth/ground) must be connected to
the three terminals (L + N + GR).
Fig. 2.f
Cabinet terminal Power cable
L L / F (line)
N N / W (neutral)
GR GR / PE (earth)
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.
Fig. 2.g
2.3.6 Fuses
The following table lists the technical specifications of the fuses supplied
for the different cabinets:
UA040DD100 UA080DD100
UA050DU100 UA090DU100
single zone
F1: 2.5 A (upstream of the transformer)
F2: 2.5 A (upstream of the transformer)
F3: 4.0 A (downstream of the transformer)
UA040DD200 UA080DD200
UA050DU200 UA090DU200
two zones
F1: 2.5 A (upstream of the transformer)
F2: 2.5 A (upstream of the transformer)
F3: 2.5 A (upstream of the transformer)
F4: 2.5 A (upstream of the transformer)
F5: 4.0 A (downstream of the transformer)
F6: 4.0 A (downstream of the transformer)
Tab. 2.i
Fuses F1, F2, F3, F4 are placed in fuse carriers (Fig. 2.h).
Fuses F5, F6 are placed on the top of the respective transformers
(components no. 21 and 22 in Fig. 1.d).
Fig. 2.h
2.4 Changing the oil cap
During installation, before starting the unit, remember to replace the red
oil cap (A) on the pump with the yellow one (B) supplied. The red cap is
closed and is only used for transport. The yellow cap has a vent opening
and is used for normal operation of the system. The yellow cap is supplied
inside the cabinet, tied to the high pressure gauge (see the image below).
A
B
Fig. 2.i