Carel humiFog Touch, Руководство по установке, Страница: 23 / 40

23
ENG
humiFog Touch +0300113EN rel. 1.0 - 15.03.20221
6.2 Feedwater
humiFog must only be supplied with demineralised water.
The use of demineralised water guarantees:
• minimum maintenance;
• no clogging of the nozzles;
• no dust (the droplets that evaporate do not release mineral salts into the AHU/room);
• greater hygiene.
The feedwater must be treated so as to ensure the limit values listed in the table. Under normal circumstances, this means that
the water must derive from a reverse osmosis system.
Feedwater specifications unit of measure
limits
min. max.
(pH) (**) 6.5 8.5
Specific conductivity at 68 °F (**) (σR, 68 °F) for steel pump μS/cm 0 50
Specific conductivity at 68 °F (**) (σR, 68 °F) for brass pump μS/cm 30 50
Total hardness (**) (TH) ppm CaCO3 0 25
Temporary hardness ppm CaCO3 0 15
Total quantity of dissolved solids (cR) ppm (*) (*)
Dry residue at 356° (R356°F) ppm (*) (*)
Iron + Manganese ppm Fe+Mn 0 0
Chlorides ppm Cl 0 10
Silicon dioxide ppm SiO2 0 1
Residual chlorine ppm Cl- 0 0
Calcium sulphate ppm CaSO4 0 5
Tab. 6.r
(1) values dependent on the specific conductivity; in general:
CR
≅ 0.65 * σR, 68 °F; R180 ≅ 0,93 * σR, 68 °F
(**) most important values to be taken into consideration for each type of installation.
IMPORTANT:
• if the specific conductivity is less than 30 μS/cm, the stainless steel pump is recommended;
• for conductivities higher than 1000 μS/cm, the water must be pre-treated prior to reverse osmosis.
6.3 Electrical connections
Before making the connections, make sure that the unit is disconnected from the power supply: turn the main system switch
and pumping station switch to OFF.
Install the cable glands on the left and right side of the electrical panel for the electrical cables to pass through.
6.3.1 Electrical panel
3
4 6 5
7
1
2
Fig. 6.c
Ref. Description
1 Inverter
2 Power terminal
3 Fuses F1 to F8 (F8 for three-phase model only)
4 Transformer A (see wiring diagram)
5 Connector T1
6 Fuse F10
7 Electronic controller
Tab. 6.s