Carel humiSonic UU02, User Manual

Page: 42 / 68

10
ENG
Direct version for room applic. +0300062IE - rel. 1.1 - 16.11.2017
2.3 Humidifier installed on a horiz. support
If the humidifier is installed on a horizontal support:
1.
the fill/drain lines are connected through the rear panel;
2.
the power cable gland is installed on the rear panel.
To connect the fill/drain lines:
A
B
Carico/
Fill
Scarico
/ Drain
Fig. 2.b
A.
Unscrew the screw and remove the right-side panel;
B. Cut the knock-outs to make openings for the fill/drain lines;
C
1
2
Insert
Extract
Fig. 2.c
C.
Attach the piping to the quick couplings so as to connect the fill and
drain valves.
1. press the quick coupling locking ring;
2. insert the pipe.
2.4 Humidifier mounted on the wall
If the humidifier is wall-mounted, proceed as described in the previous
paragraph to remove the covers, and then install:
1. the fill/drain lines, connected through the bottom panel;
2.
the power cable gland, on the bottom panel.
Fig. 2.d
2.5 Feedwater
To ensure correct operation, humiSonic requires the use of demineralised
water, with the chemical and physical characteristics specified in the table.
To ensure these water quality values, a reverse-osmosis demineralisation
system is typically used.
FEEDWATER
Quick coupling OD 8 mm (OD 5/16”)
Temperature limits °C (°F) 1…40 (33.8 to 104)
Pressure limits MPa bar (psi) 1…6 (14.5…87)
Specific conductivity at 20°C 0…80 µS/cm
Total hardness 0…25 mg/l CaCO3
Temporary hardness 0…15 mg/l CaCO3
Total quantity of dissolved solids (cR) Depending on - specific
conductivity (1)
Dry residue at 180°C Depending on specific
conductivity (1)
Iron + manganese 0 mg/l Fe+Mn
Chlorides 0 to 10 ppm Cl
Silicon dioxide 0 to 1 mg/l SiO2
Chlorine ions 0 mg/l Cl
Calcium sulphate mg/l CaSO4
Instant flow- sill SV l/min (gpm) 2 (0.53)
Tab. 2.a
(1) = in general
C
R
=0.65 * σ
R,20
°C; R
180
= 0.93 * σ
R,20 °C
To avoid excessive oversizing of the reverse osmosis system, it is
recommended to avoid sizing the system based on instant flow-rate.
Rather, an expansion vessel should be installed between the water
treatment system and humiSonic.
The sizing calculations need to consider discontinuous water
consumption, comprising the following stages:
•
filling (fill valve open);
•
production (fill valve closed);
•
washing (fill valve open).
The table below suggests the minimum sizes for connection to a generic
reverse osmosis system.
Mod. Storage
l (gal)
Total expansion l (gal) vessel volume
(pre-charge 1.5 bars/22 psi)
Reverse osmosis
system l/h (gph)
UU02 2,8 (0.62) 11,2 (2.46) 4,8 (1.27)
UU04 3,6 (0.79) 14,4 (3.17) 7,6 (2.01)
UU06 4,4 (0.97) 17,6 (3.87) 10,4 (2.75)
UU08 5,2 (1.14) 20,8 (4.56) 13,2 (3.49)
Tab. 2.a
If no storage vessel is available, the reverse osmosis system must
guarantee the instant flow-rate of the fill SV, equal to 2 l/min.
Connecting humiSonic to the Carel WTS Compact
The Carel product range includes a series of reverse osmosis systems
(“WTS Compact”) designed to produce water according to the feedwater
specifications and optimise connection to and operation with humiSonic
(see m0300017 and +0300019). All WTS Compact systems (P/N
ROC%) always come with an expansion vessel, that maintains the required
pressure in the circuit downstream. Operation of the system is managed
by pressure switches in the outlet circuit. The basic rule for connection
to the humidifier is that the water contained in the expansion vessel
must be sufficient to satisfy initial filling and, if necessary, the washing
cycle, while the WTS production time must cover humiSonic production
demand and fill the vessel as quickly as possible.
The table below suggests the water consumption values and connections
for all sizes of humidifiers.
Model Prod.
l/h (gph)
Tank capacity
l (gal)
Wash (*)
l/h (gph)
WTS P/N
(only for not
American market)
UU02 2 (0.53) 0,8 (0.18) 2,8 (0.74) ROC025500N
UU04 4 (1.06) 1,6 (0.35) 3,6 (0.95) ROC0255000
UU06 6 (1.59) 2,4 (0.53) 4,4 (1.16) ROC0255000
UU08 8 (2.11) 3,2 (0.70) 5,2 (1.37) ROC0255000
Tab. 2.b
(*) Water consumption during the washing cycle is calculated based on the
default settings (1 wash every 60 minutes, lasting 1 minutes, which ends
by totalling filling and emptying the volume of the tank). Consumption
depends on the fill solenoid valve flow-rate, which is 2 litres/minute. The
duration and frequency of the washing cycles are parameters that can be
set by the user, and these have a significant impact on the sizing of the