Carel humiSonic UU02, User Manual

Page: 43 / 68

11
ENG
Direct version for room applic. +0300062IE - rel. 1.1 - 16.11.2017
WTS system. Periodical washing is also recommended so as to maintain
the WTS that supplies the humidifier in good working condition. The
water inside the reverse osmosis system needs to be stirred periodically
to avoid excessive build-up of minerals on the membranes.
Important:
•
do not add disinfectants or anticorrosive compounds to the water, as
these are potential irritants;
•
the use of well water, industrial water or water from cooling circuits
and, in general, any potentially chemically or bacteriologically
contaminated water is prohibited.
2.6 Drain water
This is not toxic and can be drained into the sewerage system.
(Council Directive 91/271/EEC on Urban Waste Treatmen).
DRAIN WATER
Quick coupling OD 8 mm (0,32”)
Typical temperature °C (°F) 1-40 (33.8-104)
3. ELECTRICAL CONNECTIONS
3.1 Preparing to connect the power cables
A
B
D
C
Fig. 3.a
1. Unscrew the screw (A) and remove the cover (B);
2.
If the humidifier is wall-mounted/installed on a horizontal support,
remove the corresponding metal knock-out using cutting nippers on
the bottom/rear panel (C);
3.
Fit the cable gland (D).
3.2 Electrical installation
Important:
•
before proceeding with the electrical connections, ensure that the unit
is disconnected from the mains power supply;
•
check that the unit’s power supply voltage corresponds to the rated
data shown on the product label;
•
do not power on the unit if tilted or upside down: the transducers may
be damaged.
Connect the power cable to the terminal block through the cable gland.
L N
PE
Fig. 3.b
Note : to avoid unwanted interference, power cables should be kept
separate from probe signal cables.
The humiSonic electronic control board in fact comprises two boards,
a main board (1) installed horizontally, and an auxiliary card (2) installed
vertically.
J8 M9 M10
M15 M11 M14
SOTTO/ BOTTOM
SCHEDA/BOARD
1
SCHEDA/BOARD
2
J17
Fig. 3.c
MAIN BOARD
C A B
D
F
G
N
E
M 11 M 15 M 14
G
G0
Fig. 3.d
Key:
A board power supply input from transformer 24 V
B transducer control;
C valve power cables (L drain / R fill)
D configuration dipswitch
E
RESERVED
F Power ON/OFF switch lights
G TH humidity probe connection (IIC digital serial, part no.:
HYHU000000) optional.
M14 remote ON/OFF (M14.1-M14.2)
M11 RS4845 serial (M11)
M15 front fan power
N auxiliary card connection
AUXILIARY CARD
M9
M10 J8
1 2 3 4 5
J17
COMMON
NO
Tx/Rx GND
tLan
Fig. 3.e
J8 tLAN terminal connection (optional)
M9 tLAN AUX serial connector
M10 M10.1 - + proportional control signal/probe/humidistat
M10.2 - GND reference signal
M10.3 - +21 Vdc for power to active probes
M10.4 - Alarm relay - CO
M10.5 - Alarm relay - NO
J17 Reserved
Tab. 3.a