Carel heaterStream-UR User manual

heaterSteam
User manual
Technology & Evolution
We wish to save you time and money!
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IMPORTANT WARNINGS
BEFORE INSTALLING OR HANDLING THE APPLIANCE PLEASE CAREFULLY READ AND FOLLOW THE
INSTRUCTIONS AND SAFETY STANDARDS DESCRIBED IN THIS MANUAL AND ILLUSTRATED ON THE
LABELS ATTACHED TO THE MACHINE.
This humidifier produces non-pressurised steam using heating elements immersed in the water contained in the cylinder-boiler
(hereafter cylinder); the steam thus produced is used to humidify environments or industrial processes, through special
distributors.
The quality of the water used does not affect the evaporation process, and as a result the appliance can be supplied with
untreated water, as long as such water is fit for drinking, demineralised or softened (see Supply water characteristics);
the evaporated water is automatically returned using a refill valve.
To achieve uniform distribution of the heat flow, the heating elements, which are electrically insulated from the water, are
covered in an aluminium casting, and are also available with a special non-stick coating to prevent and aid the removal of
lime-scaling.
This appliance has been designed exclusively to directly humidify rooms or ducts, through distributors. It has been developed
for this purpose, as long as: the installation, use and maintenance of the unit are carried out according to the instructions
contained in this manual and on the labels applied, internally and externally, to the unit.
The environmental conditions and the voltage of the power supply must correspond to those specified.
All other uses and modifications made to the device which are not authorised by the manufacturer are considered
incorrect.
Liability for injury or damage caused by the incorrect use of the device lies exclusively with the user.
Please note that the machine contains powered electrical devices and hot surfaces.
All service and/or maintenance operations must be performed by specialist and qualified personnel who are aware of
the necessary precautions.
Disconnect the machine from the mains power supply before accessing any internal parts.
The local safety standards in force must be applied in all cases.
Approval: the quality and safety of Carel products are guaranteed by the company's ISO 9001 certified design and production
system, as well as the
mark.
CONTENTS
1.
1.1
THE MODELS......................................................................................................................................................................... 3
The accessories ...................................................................................................................................................................... 3
2.
DESCRIPTION OF THE MAIN COMPONENTS AND FUNCTIONS ................................................................................ 4
2.1
Level control.......................................................................................................................................................................... 5
2.1.1
Working level switch ......................................................................................................................................................... 5
2.1.2
Safety level switch ............................................................................................................................................................. 5
2.2
Overfill device ....................................................................................................................................................................... 5
2.3
Regulation of steam production .............................................................................................................................................. 5
2.4
Measurement of the conductivity of the supply water - alarm thresholds ................................................................................. 5
2.5
Automatic draining ................................................................................................................................................................ 5
2.6
Foam elimination procedure................................................................................................................................................... 5
2.7
Safety thermostat ................................................................................................................................................................... 5
2.8
Autotest procedure ................................................................................................................................................................. 6
2.9
Measurement of the water temperature and pre-heating (not available in the version with type C control module) .................. 6
2.10
Dehumidification request signal (not available in the version with type C control module) ..................................................... 6
2.11
Deposit detector for the heating elements (optional in the version with type C control module, std. in the versions with type H
or T control module) ........................................................................................................................................................................... 6
3.
REGULATION PRINCIPLES ................................................................................................................................................ 7
3.1
ON/OFF regulation (control module C) .................................................................................................................................. 7
3.2
Modulating regulation (control module H).............................................................................................................................. 7
3.2.1
ON/OFF regulation (parameter A0=0)................................................................................................................................ 7
3.2.2
Autonomous regulation with relative humidity transducer (parameter A0=2) ...................................................................... 7
3.2.3
Autonomous regulation with ambient relative humidity transducer and supply humidity limiting transducer (param. A0=3) 8
3.2.4
Application for steam baths (type T control module) .......................................................................................................... 8
3.3
Setting the alarm thresholds (type H or T control module) ...................................................................................................... 8
4.
4.1
4.2
4.3
MOUNTING THE UNIT......................................................................................................................................................... 9
Receipt and storage................................................................................................................................................................ 9
Dimensions and weights ........................................................................................................................................................ 9
Removing and replacing the front casing ................................................................................................................................ 9
5.1
POSITIONING THE UNIT................................................................................................................................................... 10
Fastening ............................................................................................................................................................................. 10
5.
6.
HYDRAULIC CONNECTIONS............................................................................................................................................ 11
6.1
Supply water characteristics ................................................................................................................................................. 11
6.2
Characteristics of the drain water ......................................................................................................................................... 11
6.3
Technical specifications ....................................................................................................................................................... 11
6.3.1
Table of technical specifications....................................................................................................................................... 12
6.3.2
Diagram of hydraulic connections .................................................................................................................................... 12
6.4
Checks................................................................................................................................................................................. 12
7.
ELECTRICAL CONNECTIONS .......................................................................................................................................... 13
7.1
Power supply voltages.......................................................................................................................................................... 13
7.2
Checking the voltage of the auxiliary circuit transformer ...................................................................................................... 14
7.3
Main control board............................................................................................................................................................... 14
7.4
Description of the terminal block and connections (functions and electrical specifications)............................................................ 14
7.5
Auxiliary connections........................................................................................................................................................... 15
7.5.1
Type C control module with ON/OFF action .................................................................................................................... 15
7.5.2
Type H control module with modulating action ................................................................................................................ 15
7.5.3
Control module T for steam baths with modulating action ................................................................................................ 16
7.6
Other auxiliary contacts ....................................................................................................................................................... 16
7.6.1
Alarm contact .................................................................................................................................................................. 16
7.6.2
Dehumidification contact ................................................................................................................................................. 16
7.6.3
Remote terminal / supervisory system .............................................................................................................................. 16
7.6.4
Using different brand probes............................................................................................................................................ 17
7.7
Checks................................................................................................................................................................................. 17
7.8
Wiring diagrams for the connection of the elements at the headers ....................................................................................... 18
7.9
Single-phase wiring diagram for 2-4kg/h humidifiers with type C control module................................................................. 19
7.10
Single-phase wiring diagram for 2-4kg/h humidifiers with type H or T control module ......................................................... 20
7.11
Single-phase wiring diagram for 6kg/h humidifiers with type C control module.................................................................... 21
7.12
Single-phase wiring diagram for 6kg/h humidifiers with type H or T control module ............................................................ 22
7.13
Three-phase wiring diagram for humidifiers with type C control module .............................................................................. 23
7.14
Three-phase wiring diagram for humidifiers with type H or T control module....................................................................... 24
8.
8.1
8.2
8.3
8.4
8.5
Steam distribution.................................................................................................................................................................. 25
Ambient steam distribution: ventilated steam distributors..................................................................................................... 25
Steam distribution in cold rooms .......................................................................................................................................... 25
Ducted steam distribution: linear and concentrated jet distributors (OEM)................................................................................... 25
Concentrated jet steam distribution (OEM) .......................................................................................................................... 26
Positioning linear distributors in the air duct ........................................................................................................................ 26
8.6
8.7
8.8
Installation of the steam conveyance tubing .......................................................................................................................... 27
Installing the condensation return tubing .............................................................................................................................. 28
Checks................................................................................................................................................................................. 28
9.1
9.2
9.3
START-UP ............................................................................................................................................................................. 29
Preliminary checks............................................................................................................................................................... 29
Removing the element centring spring (only for three-phase models).................................................................................... 29
Start-up................................................................................................................................................................................ 29
9.
10.
THE HUMIDIFIER CONTROLLER ................................................................................................................................... 30
10.1
Type C control module, with indication LEDs and ON/OFF action ....................................................................................... 30
10.1.1 Front panel ...................................................................................................................................................................... 30
10.1.2 Start-up sequence............................................................................................................................................................. 30
10.1.3 Display and control .......................................................................................................................................................... 30
10.1.4 Alarm indications ............................................................................................................................................................ 30
10.1.5 Manual drain command ................................................................................................................................................... 31
10.1.6 Setting the steam production ............................................................................................................................................ 31
10.2
Type H or T control module, numeric LED display, modulating action ................................................................................. 31
10.2.1 Front panel ...................................................................................................................................................................... 31
10.2.2 Start-up sequence............................................................................................................................................................. 31
10.2.3 Display............................................................................................................................................................................ 32
10.2.4 Changing the Set Point..................................................................................................................................................... 32
10.2.5 Alarm indication .............................................................................................................................................................. 32
10.2.6 Manual drain command ................................................................................................................................................... 32
11.
READING AND PROGRAMMING THE PARAMETERS OF THE TYPE H OR T CONTROL MODULE............................................... 33
11.1
Reading and programming the Set Point............................................................................................................................... 33
11.2
Reading and programming the regulation parameters - reading the measurements ................................................................ 33
11.3
Reading and programming the configuration parameters....................................................................................................... 35
11.4
Validity of the modifications to the parameters..................................................................................................................... 37
11.5
Recalling the default parameters (factory settings)................................................................................................................ 37
Resetting the hour counter................................................................................................................................................................. 37
11.6
Displaying and modifying the unit of measure ...................................................................................................................... 37
12.
THE REMOTE CONTROL (OPTIONAL ACCESSORY ) ................................................................................................. 38
Description of the remote control....................................................................................................................................................... 38
Buttons for activating/deactivating the remote control ..................................................................................................................... 38
Buttons for modifying the main parameters (direct access buttons) .................................................................................................. 38
Buttons for the remote control of the control module keypad ........................................................................................................... 39
Programming from the remote control ............................................................................................................................................... 39
Enabling the control for receiving without requiring access code (C2=0) ......................................................................................... 39
Enabling the control for receiving with access code required (C2≠0) ............................................................................................... 39
Reading the measurements.............................................................................................................................................................. 39
Modifying the main parameters (with specific button)..................................................................................................................... 39
Modifying the main parameters (without specific button) ................................................................................................................ 40
Exiting the programming phase ......................................................................................................................................................... 40
Table of remote control technical specifications................................................................................................................................. 40
13.
SHUTTING DOWN THE UNIT ........................................................................................................................................... 41
14.
MAINTENANCE AND SPARE PARTS ............................................................................................................................... 42
14.1
Maintenance of the cylinder-boiler ....................................................................................................................................... 42
14.2
Maintenance of the other hydraulic components ................................................................................................................... 46
Replacing the components ................................................................................................................................................................. 47
Non-stick film................................................................................................................................................................................. 47
Elements ........................................................................................................................................................................................ 47
Safety thermostat ............................................................................................................................................................................ 47
PTC overtemperature sensor (optional in the version with type C control module, std. in the version with type H or T control module)47
NTC temperature sensor (version with type H or T control module only)......................................................................................... 48
Auxiliary circuit fuses..................................................................................................................................................................... 48
Solid state relays (version with type H or T control module only) .................................................................................................... 48
Cooling fan and circuit breaker (version with type H or T control module only) .............................................................................................. 48
14.3
Spare parts........................................................................................................................................................................... 49
14.4
Disposal of the parts of the humidifier.................................................................................................................................. 49
15.
ALARMS AND TROUBLESHOOTING .............................................................................................................................. 50
15.1
Alarm summary table........................................................................................................................................................... 50
15.2
Troubleshooting................................................................................................................................................................... 53
16.
HUMIDIFIER TECHNICAL SPECIFICATIONS............................................................................................................... 54
16.1
Guarantee on materials ........................................................................................................................................................ 55
heaterSteam
1. THE MODELS
The code designating the model of electrical heater humidifier is made up of 10 characters, with the following meaning:
U R X X X X X X
0
0
not used
familyID prefix
rated instantaneous steam
production in kg/h
type of control
C
H
T
t
options
type - power supply
(V - type)
= ON/OFF
= modulating
= for steam baths
hi
0 = Base version
1 = Full optional version
C = 200 - 1∼N
U = 208 - 1∼N
D = 230 - 1∼N
J = 200 - 3∼
W = 208 - 3∼
K = 230 - 3∼
L = 400 - 3∼
M = 460 - 3∼
Example: the code UR010CL100 identifies a electrical heater humidifier (UR) with:
• nominal steam production of 10kg/h (010);
• ON/OFF control module (C);
• 400Vac, three-phase power supply (L);
• full optional version (1).
1.1 The accessories
Table 1.1.1 lists the accessories fitted on the humidifiers, in the various configurations.
type of control
module
options
C (ON/OFF)
H (modulating)
0: base 1: full optional 0: base 1: full optional
T (for steam baths)
0: base
1: full optional
--
--
incl.
incl.
incl.
incl.
extra
incl.
option
incl.
option
incl.
--
incl.
incl.
incl.
incl.
incl.
elements coated with non-stick film
extra
incl.
option
incl.
option
incl.
lime collection film
extra
incl.
option
incl.
option
incl.
Key: --: not available; incl.: accessory included; option: extra option
water temperature probe and pre-heater
thermal lining outside of cylinder
deposit detection device
Tab. 1.1.1
Carel code +030221761
3
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
2. DESCRIPTION OF THE MAIN COMPONENTS AND FUNCTIONS
Ventilatore(nei modeli in cui è previsto) = Fan (in
models where featured)
Klixon (termoprotettore) = Klixon (circuit
breaker - in models where featured)
Relè stato solido = Solid-state relay (in models
where featured)
Teleruttore = Remote control switch
Scheda relè = Relay board
Portafusibili = Fuse holder
Morsettiera cavi di alimentazione = Power cable
terminal block
Fermacavo antistrappo = Tear-proof cable clamp
Pressacavo per cavi di potenza = Fairlead for
power cables
Pressacavo per cavi sonde esterne = Fairlead for
external probe cables
Modulo di controllo = Control module
Elettrovalvola di drenaggio = Drain electrovalve
Elettrovalvola di alimento = Fill electrovalve
Cilindro = Cylinder
Controllo di livello = Level control
Leva di bloccaggio = Locking lever
Termostato di sicurezza = Safety thermostat
Fig. 2.1
n.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
description
fill electrovalve
flow limiter
supply tubing
refill tubing
overflow pipe
connection tube
level gauge housing
level control - level switches
equaliser tube
conductivity measurement electrodes
fill tank
fill diaphragm
overfill diaphragm
high level electrodes
steam outlet tube
cylinder cover
safety thermostat
cylinder thermal lining (optional)
water temperature sensor (optional)
overheating sensors (optional)
lime collection film
heating elements
cylinder housing
bottom filter
drain electrovalve
16
15
14
13
12
11
17
10
9
18
8
7
6
19
5
20
4
21
3
22
23
2
24
1
25
Tab. 2.1
Carel code +030221761
4
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
2.1 Level control
Steam is produced with the heating elements completely immersed in the water, the level of which is controlled by a sensor
made up of two independent and overlapping float switches, that is the working level switch and safety level switch.
The level control, housed in a transparent case to allow visual inspection, communicates with the cylinder through special
tubing; a second tube, attached to the cylinder cover , equalises the pressure.
2.1.1 Working level switch
This switch, which activates the fill electrovalve, introduces water through the special tubing into the fill tank, from where,
dropping from a fill diaphragm, it refills the level inside the cylinder; the fill electrovalve is fitted with a flow limiter,
maintaining the flow basically constant on changes in mains pressure.
2.1.2 Safety level switch
This switch shuts off power to the elements, activating the alarm in the case where the level is insufficient.
2.2 Overfill device
This is a device used to avoid water exiting the cylinder over the safety level, due for example to the malfunctioning of the
control module (for more details, see THE HUMIDIFIER CONTROLLER) or to leaking from the fill electrovalve.
The fill tank is fitted with an overfill diaphragm which deviates the excess inlet water, discharging it through special tubing.
The overfill diaphragm is lower than the fill diaphragm to avoid back flow through the supply tube.
2.3 Regulation of steam production
Steam production can be regulated either:
• By step, alternating steam production with standby using a humidistat or external contact; steam production can be
regulated in four steps with pseudo-modulation from 30% to 100% of nominal power, cyclically activating the remotecontrol switch (humidifier with type C control module).
• By continuous modulation from 0% to 100% of nominal power, using solid state relays (SSR); the regulation logic is PWM
(variation of the length of the impulse) with programmable base times (humidifier with type H or T control module).
2.4 Measurement of the conductivity of the supply water - alarm thresholds
To optimise the functionality of the humidifier by suitably portioning the automatic draining cycles (see Automatic draining),
when the fill electrovalve is opened the conductivity of the inlet water is measured using the special electrodes in the fill tank.
Two high conductivity thresholds can be set to activate respectively a pre-alarm and an alarm (with the shut-down of the
appliance) when these thresholds are exceeded for at least 60 minutes, or instantly if the value measured is greater than three
times the set value.
2.5 Automatic draining
The automatic draining function is handled by the control module. Part of the water contained in the cylinder is drained
automatically, being replaced by fresh water to prevent an excessive salt concentration following the evaporation process.
The drain electrovalve is opened for a pre-set time at intervals which vary automatically as a function of the steam production
and the content of solids dissolved in the supply water, detected using the conductivity measuring electrodes.
Irrespective of the concentration of salt in the supply water, at least one draining cycle is performed within a maximum
interval based on the quantity of steam produced; this is also true for demineralised supply water.
2.6 Foam elimination procedure
The level of water inside the cylinder is maintained by the level control at around 10-12cm from the top of the cylinder, and
thus, when the high level electrodes are wet, an anomalous situation arises, generally caused by the presence of foam. In this
case a drain procedure is activated, and is repeated until the phenomenon desists or, in the event of multiple activation, until
the appliance is shut-down and an alarm state is signalled.
2.7 Safety thermostat
The mechanical safety thermostat with manual reset intervenes in the event of overheating, caused by a lack of water inside the
cylinder due to the malfunctioning of the minimum level control. This deactivates the relay that controls the power supplied to
the elements, and places the humidifier in an alarm state.
Carel code +030221761
5
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
2.8 Autotest procedure
Each time the humidifier is started (switched from the OFF to the ON position), an autotest procedure is performed, including
checks on the operation of the level control, to test the regular functioning of the appliance.
On start-up and on each draining cycle the operation of the level control is automatically checked by opening the fill
electrovalve until the activation of the working level switch and, successively, opening the drain electrovalve until the
activation of both level switches, and finally, restoring the correct level; in the event of a failed test or irregular timing the
remote-control switch is automatically deactivated the alarm activated.
2.9 Measurement of the water temperature and pre-heating (not available in the
version with type C control module)
The control module measures, using an NTC sensor, the temperature of the water, and can be programmed to activate the preheating function near the value set for the start of humidification; in this way, steam production occurs more quickly.
2.10 Dehumidification request signal (not available in the version with type C control
module)
If activated, this function closes the relay contact when the relative humidity measured by the transducer connected to the
control module exceeds the set threshold.
This signal can be used to activate an external dehumidification device.
2.11 Deposit detector for the heating elements (optional in the version with type C
control module, standard in the versions with type H or T control module)
This patented device measures the resistance of the PTC temperature sensors inserted in the aluminium castings of the heating
elements. In the event of overheating (caused by excessive lime deposits on the surface of the elements, or by low water level
not detected by the level control), the overheating alarm is activated. In units with more than one element, the PTC
temperature sensors are connected in series.
Carel code +030221761
6
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
3. REGULATION PRINCIPLES
The range of humidifiers includes the following regulation possibilities.
3.1 ON/OFF regulation (control module C)
The action in this case is all or nothing, activated by an external contact which thus determines the Set Point and the
regulation differential (or hysteresis).
Average steam production can be adjusted using a pseudo-modulating action, through the cyclical activation of the remotecontrol switch with a fractional actuation period (operation) that can be programmed in four steps: 30%, 50%, 75% or 100% of
the total time (this mode can not be applied in severe operating conditions and without consequences on the noise level, caused
by the frequent activation of the remote-control switch).
3.2 Modulating regulation (control module H)
The appliance is fitted with solid-state relays and thus steam production can be regulated continuously as a function of the
required quantity, in one of the following modes.
3.2.1 ON/OFF regulation (parameter A0=0)
As for the type C control module (see ON/OFF regulation (type C control module)).
Slave regulation, with signal emitted from an external regulator (parameter A0=1)
Steam production is proportional to the value of an steam production
external signal Y, (selected by programming one of the
Pmax
following standards: 0÷1Vdc; 0÷10Vdc; 2÷10Vdc;
0÷20mA; 4÷20mA) the entire range of which is indicated
by BP (proportional band).
hy
The maximum production Pmax, corresponding to the
maximum value of the external signal Y, can be Pmin
programmed between 10% and 100% of the nominal
OFF
ON
value of the humidifier.
The minimum production Pmin is fixed at 10% of the
b2
0 Vdc
nominal value, with an activation hysteresis provided by
0 Vdc
2 Vdc
the value hy, equal to 2% of the entire range BP of the
0 mA
OFF
ON
external signal Y.
4 mA
If enabled, the pre-heating function overlaps the
hy
hy
regulation diagram, and is activated when the external
signal Y is lower than the activation point for steam
production by a quantity b2.
PRODUZIONE
DI VAPORE
Y
active
PRE-HEATING
inactivate
1 Vdc
10 Vdc
10 Vdc
20 mA
20 mA
BP
Fig. 3.2.2.1
3.2.2 Autonomous regulation with relative humidity transducer (parameter A0=2)
Steam production is linked to the measurement of % rH, steam production
performed by the relative humidity transducer connected
P0
to the regulator, and increases as the distance from the Set
Point St increases.
The maximum production P0, which occurs when the relative
hy
humidity is less that the Set Point by a value P1, can be Pmin
STEAM
programmed between 10% and 100% of the nominal
ON OFF
% rH
PRODUCTION
value of the humidifier.
The minimum production Pmin is fixed at 10% of the
St
P1
b2
nominal value, with an activation hysteresis provided by
active
the value hy, equal to 10% of P1.
ON OFF
PRE-HEATING
ON
The pre-heating function, if enabled, overlaps the regulation
inactivate
diagram and is activated when the relative humidity % rH,
hy
measured by the
transducer, is higher than St by a
P6
P5
programmable quantity b2.
active
The dehumidification function, if enabled, overlaps the regulation diagram and is
OFF
ON
DEHUMIDIFIER
activated when the relative humidity % rH, transmitted by the transducer, is
inactivate
higher than St by a programmable quantity P5+P6; the hysteresis of the step, also
programmable, is equal to P6.
Fig. 3.2.3.1
Carel code +030221761
7
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
S te a m p ro d u c tio n
To check that the relative humidity measured by the transducer is within the preset values, the control module with autonomous regulation allows two alarm
Pnom
thresholds to be programmed:
STEAM
ON
OFF
• high relative humidity alarm threshold P2;
P R O D U C TIO N
% rH
• low relative humidity alarm threshold P3.
St
When these thresholds are exceeded, after a programmable delay P4, an alarm
P1
state is activated, with the closing of the contact of the corresponding relay on
Fig. 3.2.3.2
the main control board.
With autonomous regulation (parameter A0=2) it is also possible to have an ON/OFF action, as represented in the graph, by
disabling power modulation (setting parameter b0=0).
The pre-heating and/or dehumidification, if enabled, remain unchanged.
3.2.3 Autonomous regulation with ambient relative humidity transducer and supply humidity
limiting transducer (parameter A0=3)
In this case too the regulator modulates steam production as a function
L im it
O f pr od u c tio n %
of the measurement % rH performed by the main relative humidity
transducer, however, in addition, its entity is limited if the relative
P0
humidity % rH2 measured by a second compensation transducer
placed in the humidifier air inlet duct exceeds the maximum desired
value.
This limiting occurs by giving the command to decrease steam
production proportionally to the difference between the measurement %
1 0% P 8
rH2 of the supply relative humidity and the programmable threshold
P7.
10
The compensation probe has its own Set Point P7 and differential P8,
based on which the limit of production is calculated. If the production
required by the main transducer is greater than the limit, production
will be equal to the limit itself.
P 7 S up p ly
To prevent the relative humidity measured by the transducer in the
P8
p ro b e
humidifier air inlet duct exceeding a value considered as excessive, the
(% rH 2 )
control module with autonomous regulation and second transducer
Fig.
3.2.4.1
connected allows a high supply relative humidity alarm threshold P9, to
be programmed. If this threshold is exceeded, after a programmable delay P4, an alarm state is activated, with closing of the
contact of the corresponding relay on the main control board.
3.2.4 Application for steam baths (type T control module)
In applications for steam baths, where the regulation probe measures temperature rather than humidity, the same
considerations are valid as for the type H control module with modulating action and autonomous regulation.
Recommended transducer: SSTOOB/P40 or ASET030001.
3.3 Setting the alarm thresholds (type H or T control module)
The control module panel allows the setting of limit thresholds for the activation of the alarm in the event where these are
exceeded.
These alarm thresholds can be programmed using the following regulation parameters:
• P2: high relative humidity alarm threshold, measured by the ambient probe;
• P3: low relative humidity alarm threshold, measured by the ambient probe;
• P4: alarm signalling delay (to prevent false signals);
• P9: high relative humidity alarm threshold, measured by the supply probe (for ducted humidification).
The parameters P2, P3, P4 are programmable only when A0=2 or 3; the parameter P9 is programmable only when
A0=3.
Furthermore, the control module allows the signalling of excessive conductivity (and thus salt concentration) of the supply
water, but only as a default setting.
WARNING: the parameter A0 and the functional alarm parameters Px and b0 are set in the factory (default values valid for
normal applications). Nonetheless, these can be modified by the user, following the instructions contained in: Reading and
programming the parameters for the type H or T control module.
Carel code +030221761
8
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
4. MOUNTING THE UNIT
4.1 Receipt and storage
Check the integrity of the machine upon delivery and immediately notify the shipping agent, in writing, of all and any damage
which may be the result of careless or incorrect transport. Move the machine to the place of installation before removing it
from its packaging, holding the neck only from below the base. Open the cardboard box, remove the padding material and then
the machine, keeping it vertical at all times; remove the protective bag only just prior to installation.
4.2 Dimensions and weights
B
A
dimensions (mm)
weight (kg)
reference
A
B
C
packaged
empty
installed *
models
UR002 UR004 UR006 UR010 UR020 UR030
370
370
370
370
280
280
280
280
575
575
710
710
26
26
31
31
21
21
26
26
27
27
35
35
C
Tab. 4.2.1
*: in operating conditions, filled with water
Fig. 4.2.1
4.3 Removing and replacing the front casing
To remove the front casing of the humidifier, proceed as follows:
1. turn the oval badge with the Carel logo 90°, until the ground screw below
can be seen;
2. remove the screw, using a screwdriver;
3. grip the casing by the sides and lift it around 2 centimetres, releasing the
contours from the raised edges on the cover and the base of the structure;
4. remove the casing by pulling it forward.
To close the appliance, proceed as follows:
1. turn the red oval plate with the Carel logo so that the fastening hole below is
visible;
2. slide the casing onto the structure, keeping it in a slightly raised position,
until it rests on the edges of the rear piece; then move it downwards slotting
the upper and lower contours into the edges of the cover and the base of the
structure respectively; check that the fastening hole below the logo is in line
with the threaded bush attached to the structure;
3. fasten the ground screw using a screwdriver;
4. place (rotate) the oval plate with the Carel logo in the closed position.
Fig. 4.3.1
Carel code +030221761
9
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
5. POSITIONING THE UNIT
The humidifier must be positioned and fastened by qualified technical personnel, following the instructions
listed herein.
≥300
Choose the best location for the installation of the steam distributor, that is the
position which minimises the length of the steam tubing or, in the case of direct
ambient humidification using a ventilated distributor, the central point of the
space being humidified (see STEAM DISTRIBUTION). The unit is designed to
be mounted to a wall which must be able to support its weight in operating
conditions (see Dimensions and weights).
The metal casing of the humidifier heats up during operation, and the rear part
resting against the wall may reach temperatures above 60°C; thus ensure that this
does not cause any problems. Make sure the machine is level, respecting the
minimum distances indicated in the drawing, to allow the necessary maintenance
operations.
WARNING: ensure that the cooling fan outlet grid is not blocked or covered.
≥200
griglia
< 0,5°
≥200
≥700
5.1 Fastening
≥400
Fig. 5.1
The appliance must be fastened to the wall using three screws: two upper screws,
to fasten the support bracket, and a lower, central screw, for anchoring. Use the following distances for the drilling template.
X
=
=
X (mm)
Y (mm)
Z (mm)
UR002
UR004
220
520
280
models
UR006
UR010
220
654
280
UR020
UR030
Tab. 5.1.1
Y
Fig. 5.1.1
Fasten the bracket supplied with the humidifier to the wall, checking that it is horizontal
using a spirit level; if it is mounted to a brick wall, the plastic wall plugs (Ø 8mm) and screws
(Ø 5mm x L = 50mm) supplied can be used.
Z
30
30
Fig. 5.1.2
Hang the appliance on the bracket using the contour on the upper edge of the rear of the unit.
Finally, fasten the appliance to the wall using the hole in the centre rear of the base. This can be easily reached from the
bottom.
Carel code +030221761
10
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
6. HYDRAULIC CONNECTIONS
The hydraulic connections for the supply and the draining of the unit must be made by specialist and
qualified personnel, who are capable of performing the work correctly and according to local standards.
Before making the connections, ensure that the machine is disconnected from the mains power.
6.1 Supply water characteristics
The supply water for the electrical heater humidifier not must be corrosive, must not emit bad odours, must not contain too
much lime to avoid excessive deposits.
The water, supplied from mains drinking water or demineralised water, must have the following characteristics:
pressure between 1 and 8 bar
temperature between 1 and 50°C
phosphate content < 5mg/l
chloride content < 50mg/l
low chlorine content
low CO2 content
hardness not greater than 40°fH (equal to 400 ppm as
CaCO3)
absence of organic compounds
Tab. 6.1.1
Note that treating the water with softeners or polyphosphates does not decrease the quantity of dissolved salts, and can lead to
the formation of foam and hence irregular operation.
Not recommended:
1. the use of well water, industrial water or water from cooling circuits and, in general, water which may be chemically or
bacteriologically contaminated;
2. the addition to the water of disinfectants or anticorrosion compounds, as these may cause irritation.
Note: no relationship can be proven between water hardness and conductivity; nonetheless, as an indication only, water with a
hardness of 40°fH should have an approximate conductivity of around 900-1000µS/cm at 200C.
6.2 Characteristics of the drain water
Inside the humidifier water boils and steam is produced, without the addition of any kind of substance. The drain water,
therefore, contains the same substances as those dissolved in the supply water, yet in a greater proportion, depending on the
concentration in the supply water and the set drain cycles; it can also reach a temperature of 100°C. Not being toxic, it can be
drained into the backwater collection system. The drain tubing, as well as being resistant to high temperatures, must also
guarantee the correct downflow of the water; a downward slope of at least 5° is therefore recommended.
6.3 Technical specifications
The installation of the humidifier requires connection to the supply and drain water tubing.
The connection of the supply water can be made using rigid or
flexible tubing with a minimum recommended internal diameter
of 6mm, fitted with a shut-off tap to allow the appliance to be
disconnected during maintenance operations.
To simplify installation it is recommended to use Carel flexible
tubing with an internal diameter of 6mm and an external
diameter of 8mm (code 1312350APN) and the rotating ¾"G
straight (code 9995727ACA) or elbow connector (code
9995728ACA), available upon request.
It is recommended to install a mechanical filter to trap any
solid impurities.
Fig. 6.3.1
The drain water connection is made using a section of rubber or
plastic tubing resistant to temperatures of 100 °C, with a recommended internal diameter of 36 mm.
This section of tubing must be fastened using metal clamps:
• above, onto the appliance outlet pipe coupling;
• below, onto the rigid tubing, with a minimum slope of 5°.
Carel code +030221761
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heaterSteam
6.3.1 Table of technical specifications
technical specifications
maximum instantaneous flow rate for supply water (l/min.)
supply water connection
supply tubing minimum recommended internal diameter (mm)
maximum instantaneous flow rate for drain water (l/min)
drain water connection external diameter (mm)
drain tubing recommended internal diameter (mm)
UR002
0.6
G¾"M
6
5
40
36
UR004
0.6
G¾"M
6
5
40
36
models
UR006
UR010
1.2
1.2
G¾"M
G¾"M
6
6
5
5
40
40
36
36
UR020
UR030
Tab. 6.3.1
6.3.2 Diagram of hydraulic connections
Power supply
drain
tap
min 5°
filter
Fig. 6.3.2.1
IMPORTANT WARNING: the discharge tubing must be free, without back-pressure and with a drain trap
immediately downstream from the connection to the humidifier.
6.4 Checks
The following conditions represent correct hydraulic connection:
• disconnection of the supply water line using a shut-off tap;
• presence of a mechanical filter in the supply water line;
• water temperature and pressure within the acceptable values;
• drain tubing resistant to temperatures of 100°C;
• drain tubing minimum internal diameter of 36 mm;
• minimum slope of drain tubing greater than or equal to 5°.
IMPORTANT WARNING: on completion of the installation procedure, drain the supply tubing for around 30 minutes
by passing water directly through the tubing and without introducing it into the humidifier. This will allow the
elimination of any scoria and processing residues which may cause the formation of foam during the boiling process.
Carel code +030221761
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preliminary version - rel. 2.0 - 03/09/99
heaterSteam
7. ELECTRICAL CONNECTIONS
The electrical connections must be made by specialist and qualified personnel, who are capable of
performing the work correctly and according to local standards. Before making the connections, ensure
that the machine is disconnected from the mains power.
Check that the voltage of the appliance's power supply corresponds to the value indicated on the data plate inside the electrical
panel . Introduce the power and ground connection cables into the electrical panel through the fairlead supplied, connect the
ends to the terminals and fasten them in place using the special tear-proof cable clamp (see Fig. 2.1). The power line to the
humidifier must be fitted with a cut-off switch and fuses protecting against short-circuits, to be mounted by the installer. Table
7.1.1 shows the recommended cross-sections of the power cable and the recommended sizes of the fuses; note, however, that
this data is purely indicative and, in the event of non-conformity with local standards, the latter must prevail.
7.1 Power supply voltages
Table 7.1.1 lists the electrical data regarding the power supply voltages of the various models and the functional characteristics
of each. Note that some models may be powered at different voltages, obviously with different consumption and steam
production values.
base
model
power supply
code
voltage
(1)
(V - type)
elements
(2)
(no x Ω)
nominal characteristics
conneccurrent
power
tion type
(2)
(2)
(3)
(A)
(kW)
production
(2; 5)
(kg/h)
cable
c.sec. (4)
(mm2)
line
fuses
(4)
(A / type)
wiring
diagram
(Fig.)
element
connection
wiring
diagram
(Fig.)
UR002
C
U
D
200 - 1∼N
208 - 1∼N
230 - 1∼N
1 x 29.5
1 x 29.5
1 x 29.5
-
6.8
7
7.8
1.4
1.5
1.8
1.8
2
2.4
2.5
2.5
2.5
16 / fast-blow
16 / fast-blow
16 / fast-blow
7.9.1 and 7.10.1
7.9.1 and 7.10.1
7.9.1 and 7.10.1
7.8.4
7.8.4
7.8.4
UR004
C
U
D
200 - 1∼N
208 - 1∼N
230 - 1∼N
1 x 17.6
1 x 17.6
1 x 17.6
-
11.3
11.8
13
2.3
2.5
3
3
3.2
4
2.5
2.5
2.5
20 / fast-blow
20 / fast-blow
25 / fast-blow
7.9.1 and 7.10.1
7.9.1 and 7.10.1
7.9.1 and 7.10.1
7.8.4
7.8.4
7.8.4
UR006
C
U
D
J
W
K
L
200 - 1∼
208 - 1∼
230 - 1∼
200 - 3∼
208 - 3∼
230 - 3∼
380 - 3∼
400 - 3∼
440 - 3∼
460 - 3∼
3 x 26.7
3 x 28.1
3 x 35.3
3 x 26.7
3 x 28.1
3 x 35.3
3 x 35.3
3 x 35.3
3 x 47.0
3 x 47.0
≡
≡
≡
∆
∆
∆
Υ
Υ
Υ
Υ
22.5
22.2
19.6
3 x 13.0
3 x 12.8
3 x 11.3
3 x 6.2
3 x 6.5
3 x 5.4
3 x 5.7
4.5
4.6
4.5
4.5
4.9
4.5
4.1
4.5
4.1
4.5
6
6.1
6
6.0
6.5
6.0
5.5
6.0
5.5
6.0
10
10
10
2.5
2.5
2.5
2.5
2.5
2.5
2.5
40 / fast-blow
40 / fast-blow
40 / fast-blow
20 / fast-blow
20 / fast-blow
16 / fast-blow
10 / fast-blow
10 / fast-blow
10 / fast-blow
10 / fast-blow
7.11.1 and 7.12.1
7.11.1 and 7.12.1
7.11.1 and 7.12.1
7.13.1 and 7.14.1
7.13.1 and 7.14.1
7.13.1 and 7.14.1
7.13.1 and 7.14.1
7.13.1 and 7.14.1
7.13.1 and 7.14.1
7.13.1 and 7.14.1
7.8.3
7.8.3
7.8.3
7.8.2
7.8.2
7.8.2
7.8.1
7.8.1
7.8.1
7.8.1
200 - 3∼
208 - 3∼
230 - 3∼
380 - 3∼
400 - 3∼
440 - 3∼
460 - 3∼
3 x 16.0
3 x 17.3
3 x 21.3
3 x 21.3
3 x 21.3
3 x 28.1
3 x 28.1
∆
∆
∆
Υ
Υ
Υ
Υ
3 x 21.7
3 x 20.8
3 x 18.8
3 x 10.3
3 x 10.9
3 x 9.0
3 x 9.4
7.5
6.1
7.5
6.8
7.5
6.9
7.5
10.0
8.1
10.0
9.0
10.0
9.2
10.0
6
6
6
2.5
2.5
2.5
2.5
40 / fast-blow
40 / fast-blow
40 / fast-blow
16 / fast-blow
16 / fast-blow
16 / fast-blow
16 / fast-blow
7.13.1 and 7.14.1
7.13.1 and 7.14.1
7.13.1 and 7.14.1
7.13.1 and 7.14.1
7.13.1 and 7.14.1
7.13.1 and 7.14.1
7.13.1 and 7.14.1
7.8.2
7.8.2
7.8.2
7.8.1
7.8.1
7.8.1
7.8.1
M
UR010
J
W
K
L
M
UR020
UR030
Tab. 7.1.1
(3) -: single-phase; ≡: single-phase in parallel; ∆: delta; Υ: star.
(4) Recommended values; referred to the laying of the cable in closed PVC or rubber
raceways with a length of 20m; the standards in force must in any case be followed.
(5) Instantaneous steam production: the average steam production may be influenced by external factors, such as: ambient temperature, water quality, steam
distribution system.
(1) Tolerance allowed on nominal mains voltage: ± 10 %.
(2) Tolerance on nominal values: +5%, -10% (EN 60335-1).
Carel code +030221761
13
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
7.2 Checking the voltage of the auxiliary circuit transformer
The multi-voltage toroidal transformer for the auxiliary circuits has four
primary windings (for the voltages: 200-208V, 230V, 400V, 440-460V)
and one secondary winding (24V).
The connection is made and checked in the factory, according to the
voltage shown on the specification plate.
In the event of a change in the voltage of the power supply or
intervention on the electrical panel, before powering the appliance, check
the exactness of the connection (check wiring diagram).
IN P U T P R IM A R Y
SECO N D ARY
4 4 0 - 4 6 0 V - y e llo w
4 00 V - blue
2 4 V - red
2 0 0 - 2 0 8 V - b la c k
0 - red
0 - w h ite
Fig. 7.2.1
The transformer primary is protected by 10.3 x 38mm cylindrical fuses, calibrated as indicated in Table 14.3.6.1.
7.3 Main control board
The auxiliary connections, depending on the chosen model and the
control module, must be made by introducing the external cables into
the electrical panel. For this purpose use the smaller fairlead on the
base of the machine, passing the cables through the raceway on the
internal partition to the removable screw terminals placed on the main
control board, as shown in Fig. 7.3.1 and described in the following
paragraph.
terminal block G (dehumidification
terminal block H (alarm contact)
remote manual DRAIN command terminal block
terminal block I (control signals)
terminal block J (to remote terminal or supervisory
system)
7.4 Description of the terminal block and connections (functions and electrical specifications)
Before connecting the probes or the external regulator, set parameters A2 and A6 according to the
command signal (see THE HUMIDIFIER CONTROLLER)
terminal
function
electrical specifications
1I
supply probe input signal
2I
3I
4I
5I
6I
7I
8I
GND
≈ 32Vdc
12Vdc stabilised
ambient probe input signal
or signal from external regulator
GND
remote
enabling
1H
2H
3H
NO alarm contact
common alarm contact
NC alarm contact
1G
2G
NO dehumidification contact
common dehumidification contact
250V; 8 A with resistive load; 2A with indicative load
1J
2J
3J
4J
≈ 32Vdc
L+
LGND
derived from rectifying of 24Vac; max 250mA
standard RS-485
1K
2K
3K
remote control terminal block button switch
for DRAIN command with simultaneous
disconnection of the power supply
NC contact
common contact
NO contact
input impedance: 50 Ω if programmed for 0÷20mA or 4÷20mA
60 kΩ if programmed for 0÷1V or 0÷10V or 2÷10V
derived from rectifying of 24Vac; max 250mA
accuracy ± 5%; Imax=50mA
input impedance: 50 Ω if programmed for 0÷20mA or 4÷20mA
60 kΩ if programmed for 0÷1V or 0÷10V or 2÷10V
Rmax=50 Ω; Vmax=24Vdc; Imax=10mAdc
250V; 8 A with resistive load; 2A with indicative load
Tab. 7.4.1
Carel code +030221761
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preliminary version - rel. 2.0 - 03/09/99
heaterSteam
7.5 Auxiliary connections
Before making the auxiliary connections, disconnect electrical power to the appliance!
7.5.1 Type C control module with ON/OFF action
H
CR
∼
The humidifier is controlled by a mechanical humidistat H or a voltage-free remote contact CR,
or a combination of both.
The control module can be connected to an RS485 serial line, or alternatively to the Carel
Humivisor remote control panel, marked as MT, or to a remote supervisor.
The diagrams in Fig. 7.5.1.2 show the connections to be made on the terminal block I, in the
following cases:
a) action commanded by simple enabling contact;
b) action from external mechanical humidistat;
c) combination of the above.
MT
a
Fig. 7.5.1.1
1I
2I
3I
4I
5I
6I
7I
8I
1I
2I
3I
4I
5I
6I
7I
8I
H
b
1I
2I
3I
4I
5I
6I
7I
8I
H
c
CR
CR
Fig. 7.5.1.2
7.5.2 Type H control module with modulating action
The humidifier with modulating action is fitted with solid-state relays, and thus its capacity can be varied from zero to 100%
depending on the regulation requirements. In this case too, the humidifier can be connected via RS485 to the Carel Humivisor MT
remote control panel or a remote supervisor. It can be controlled in the following three different modes.
a) Slave regulation, with signal from an external regulator.
Steam production is managed by an external regulator R which transmits a modulating signal
R
to the control module; the control module can be programmed to receive alternatively one of
the following modulating signals (see THE HUMIDIFIER CONTROLLER):
• voltage signal: 0-1Vdc; 0-10Vdc; 2-10Vdc;
CR • current signal: 0-20mA; 4-20mA.
The reference (zero) of the external regulator must
be connected to terminal 6I on the terminal block I
and the command signal to terminal 5I.
To avoid disturbances in regulation, the ground of
the external regulator must be connected to the
ground of the control.
∼
MT
External regulator
OUT
REF
1I
2I
3I
4I
5I
6I
7I
8I
CR
b) Autonomous modulating regulation with ambient relative humidity probe (and possible limiting probe in the supply duct).
With this configuration (see Fig. 7.5.2.3) the main
control board, connected to a humidity probe HT,
performs a complete regulation action according to
HT
the humidity measured.
A limiting humidity probe in the supply duct can
HT
CH
CR also be added (see Fig. 7.5.2.4): with this
configuration, typical of air handling systems, the
main control board, connected to a humidity probe
HT, performs a complete regulation action, as well
as limiting the steam production depending on the
C
value of relative humidity in the supply duct,
measured using the special probe CH.
MT
MT
Fig. 7.5.2.3
∼
∼
Carel code +030221761
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preliminary version - rel. 2.0 - 03/09/99
heaterSteam
The diagrams shown in Fig. 7.5.2.5 indicate the connections to be made using Carel probes, for:
a) just one relative humidity probe;
b) a limiting humidity probe in supply duct.
HT
relative humidity Carel
probe
1I
2I
3I
4I
5I
6I
7I
8I
+ (G)
out H
M
CR
possible Carel probes
CH
CAREL relative
humidity probe in
supply
+ (G)
out H
M
HT
relative humidity Carel
probe
+ (G)
out H
M
CR
a
ambient
ASWH100000
1I
2I
3I
4I
5I
6I
7I
8I
air ducts
ASDH100000
ASDH200000
special applications
ASPC230000
ASPC110000
b
Fig. 7.5.2.5
The control can be connected to non-Carel active probes; see Using different brand probes.
7.5.3 Control module T for steam baths with modulating action
TT
CR
∼
Fig. 7.5.3.1
MT
The control of this appliance features autonomous internal regulation, and is connected to a
temperature probe TT.
TT
1I
This performs a complete regulation action according to Temperature
Carel
2I
probe
the temperature measured inside the environment being
3I
controlled.
+ (G)
4I
Fig. 7.5.3.2 shows the connection of Carel probe model
out T
5I
M
6I
ASET030001, with a measurement range of -30÷90 °C,
7I
or SST00B/P40.
8I
The command signal must be connected to terminal 5I, CR
whose reference (GND) is represented by terminal 6I.
Fig. 7.5.3.2
The control can be connected to non-Carel active probes; see Using different brand probes.
7.6 Other auxiliary contacts
1H
2H
3H
7.6.1 Alarm contact
The humidifier's control module features a voltage-free switching contact for the remote
signalling of the presence of one or more anomalous events or alarms.
Connection to the alarm contact (250Vac; maximum load: 8 A resistive - 2 A inductive) is
made using the removable terminal block H, as per Fig. 7.6.1.1.
Fig. 7.6.1.1
7.6.2 Dehumidification contact
In the advanced version with internal regulation and humidity transducer, the control
module features a voltage-free NO contact, the closing of which can, if required, be
programmed to activate an external dehumidification device: in this case the appliance
assumes the functions of a complete ambient relative humidity control.
Connection to the dehumidification contact (250Vac; maximum load: 8 A resistive - 2 A
inductive) is made using the removable terminal block G, as per Fig. 7.6.2.1.
1G
2G
Fig. 7.6.2.1
7.6.3 Remote terminal / supervisory system
The humidifier's control module can be connected to an RS485 serial line, as per the
diagram in Fig. 7.6.3.1, or alternatively to:
• a Carel Humivisor remote control panel (see specific instruction manual), which can be
connected to four different humidifiers;
• a remote supervisory system.
The transmission line can reach a maximum distance of 1000 metres between the two most
distant points.
1 2 3 4
J J J J
24
GND
L-
L+
Fig. 7.6.3.1
Carel code +030221761
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preliminary version - rel. 2.0 - 03/09/99
heaterSteam
7.6.4 Using different brand probes
Different brand probes can be used, with output signals selected, by programming the parameter A2, (see THE HUMIDIFIER
CONTROLLER) from the following:
• voltage signal: 0-1Vdc; 0-10Vdc; 2-10Vdc.
• current signal: 0-20mA; 4-20mA.
In addition, the maximum and minimum values must be programmed for the signal (parameters A3 and A4 for the ambient
probe; A7 and A8 for the supply probe).
The probes can be powered at the following voltages:
• 12V stabilised at terminal 4I;
• 32Vdc from the rectifying of 24Vac at terminal 3I.
The command signals must be connected:
• for the regulation probe HT (that is TT in the case of controls for Steam baths) to terminal 5I, whose reference ground
(GND) is terminal 6I;
• for the limiting probe CH, to terminal 1I, whose reference ground (GND) is terminal 2I.
IMPORTANT WARNINGS:
1. To avoid disturbances to regulation, the ground of the probes or the external regulators must be electrically
connected to the ground of the appliance's control.
2. For humidifier operation terminals 7I and 8I must be connected by an enabling contact or a jumper (default
solution). If terminals 7I and 8I are not connected, all internal and external devices commanded by the control are
disabled.
7.7 Checks
The following conditions represent correct electrical connection:
• the rated voltage of the appliance corresponds to the voltage on the specification plate;
• the fuses installed are suitable for the line and the voltage of the power supply ;
• a line cut-off switch has been installed to enable power to the humidifier to be disconnected;
• the electrical connections have been made as per the diagrams;
• the power cable is fastened to the tear-proof cable clamp;
• terminals 7I and 8I are connected by jumper or an enabling contact;
• the ground of any non-Carel probes is electrically connected to the ground of the control;
• if the appliance is commanded by an external regulator, the ground of the signal is electrically connected to the ground of
the control.
Carel code +030221761
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preliminary version - rel. 2.0 - 03/09/99
heaterSteam
7.8 Wiring diagrams for the connection of the elements at the headers
2
D
2
C
D
3
3
B
E
C
B
E
A
F
A
F
1
1
F ig. 7.8.1
1
A
B
1
2
3
C
E
A
R3
R1
R2
R1
F ig. 7.8.2
D
3
C
E
R2
B
F
2
R3
D
F
2
2
D
C
D
1
1
B
E
E
A
F
F ig. 7.8.3
F ig. 7.8.4
1
2
A
C
E
D
R1
R2
R3
R
B
D
F
E
2
three-phase power supply
terminals
Fig. 7.8.1 three-phase star connection
Fig. 7.8.2 three-phase delta connection
1-2-3
Carel code +030221761
1
1-2
single-phase power supply terminals
Fig. 7.8.3 single-phase parallel connection (6kg/h)
Fig. 7.8.4 single-phase connection (2-4kg/h)
Tab. 7.8.1
18
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
7.9 Single-phase wiring diagram for 2-4kg/h humidifiers with type C control module
1
2
PO N T E D A TO G L IE R E IN C A SO D I M O N TA G G IO
D E L SE N SO R E D I T E M P ER ATU R A PT C
R E L AY 1
6 5 4 3 2 1
E E E E E E
D E H U M ID IF.
R E L AY
E
1G
2G
QC 2
ST
G
A LARM
R E L AY
1K
2K
3K
K
F1
EXTER NA L
S IG N A L
WARNING:
EXTERNAL SIGNAL
see Figs.: 7.5.1.2 / .2.2
/ .2.5 / .3.2
F2
TB
N
L
1H
2H
3H
1I
2I
3I
4I
5I
6I
7I
8I
H
TP
3
6
2
5
1
4
6D
3D
4D
1D
S1
2
1
D
E
CE
LE
K
C
R E L AY B O A R D
B
I
2
4
1
3
3
6
3C
1C
4C
5B
2
5
4B
1
4
4
8
3
7
2
6
7A
1
5
3A
6B
2B
3B
LS
QC 1
A
J
1
J
PE
D
2
J
3
J
4
J
4A
PTC
**
R
*
STEAM
B O IL E R U N IT
TR
DV
FV
S E R IA L
L IN E
*
CONTROL
M ODULE
MP
MS
M a n u a l d ra in
PO W ER
S U P P LY
* IN S TA L L E R S ID E
* *O N LY C _ 1 M O D E L
Fig. 7.9.1
Carried out by the installer
Carel code +030221761
TB
K
F1-F2
TR
TP
MS
Terminal block
Contactor
Auxiliary fuses
Toroidal transformer
Circuit breaker
Manual switch
S1
LS
FV
DV
LE
CE
Safety thermostat
Level switches
Fill valve
Drain valve
High level electrodes
Conductivity meter electrodes
R
QC1-QC2
ST
PTC (1)
13-14
19
Electrical heating element
Quick connectors
Sensor terminal block
Element temperature sensor
Auxiliary contacts contactor K
(1) optional in the version C0,
standard in the version C1
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
7.10 Single-phase wiring diagram for 2-4kg/h humidifiers with type H or T control module
1
2
R E L AY 1
6 5 4 3 2 1
E E E E E E
E
D E H U M ID IF.
R E L AY
1G
2G
AL AR M
R E L AY
1H
2H
3H
1K
2K
3K
K
F1
F2
ST
H
C
D
3
6
2
5
1
4
6D
3D
4D
1D
S1
2
1
D
E
CE
LE
K
C
1I
2I
3I
4I
5I
6I
7I
8I
EX TE RN A L
S IG N A L
WARNING:
EXTERNAL SIGNAL
see Figs.: 7.5.1.2 / .2.2
/ .2.5 / .3.2
Q C2
G
R E L AY B O A R D
B
I
4
1
3
3
6
2
5
4B
1
4
4
8
3
7
2
6
7A
1
5
3A
6B
2B
3B
LS
Q C1
A
J
1
J
2
3C
1C
4C
5B
2
J
3
J
N TC
PTC
4A
4
J
R
ST EA M
B O IL E R U N IT
TB
DV
N
L
PE
CONTROL
M O D U LE
TR
*
FV
S E R IA L
L IN E
TP
MP
MS
M an u al d rain
* IN S TA L L E R S ID E
POW ER
S U P P LY
Fig. 7.10.1
Carried out by the installer
Carel code +030221761
TB
K
F1-F2
TR
Terminal block
Contactor
Auxiliary fuses
Toroidal transformer
FV
DV
LE
CE
TP
MS
S1
LS
Circuit breaker
Manual switch
Safety thermostat
Level switches
C
R
QC1-QC2
ST
Fill valve
Drain valve
High level electrodes
Conductivity meter
electrodes
Filter
Electrical heating element
Quick connectors
Sensor terminal block
PTC (1)
NTC (1)
13-14
FAN (1)
Element temperature sensor
Water temperature sensor
Auxiliary contacts contactor K
Fan
FSB (1)
SSR (1)
S2 (1)
Fan control board
Solid state relay
Circuit breaker
20
(1) optional in the versions H0 and T0,
standard in the versions H1 and T1
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
7.11 Single-phase wiring diagram for 6kg/h humidifiers with type C control module
1
1
2
2
A
PO N T E D A TO G L IER E IN C A SO D I M O N TA G G IO
D E L SE N SO R E D I TE M P ER AT U R A P TC
R EL AY 1
1G
2G
A LA RM
RE LAY
1H
2H
3H
F1
EX TER N AL
SIGN A L
1. EXTERNAL SIGNAL
see Figs.: 7.5.1.2 / .2.2
/ .2.5 / .3.2
2. BRIDGING
CONNECTION
see Fig.7.8.3
F2
TB
N
L
TP
B R ID G IN G C O N N E C T IO N
Q c2
ST
H
1I
2I
3I
4I
5I
6I
7I
8I
D
3
6
2
5
1
4
6D
3D
4D
1D
S1
A
B C
D
F
CE
LE
K
C
R E L AY B O A R D
B
I
2
4
1
3
3
6
3C
1C
4C
5B
2
5
4B
1
4
4
8
3
7
2
6
7A
1
5
3A
6B
2B
3B
LS
Q C1
A
J
1
J
PE
F
6 5 4 3 2 1
E E E E E E
G
1K
2K
3K
K
D E
E
D EH U M ID IF.
REL AY
WARNINGS:
B C
2 3
J J
4
J
PTC 1
PTC 2
PTC 3
R1
R2
R3
4A
STEAM
B O IL E R U N IT
TR
FV
DV
SER IA L
LINE
*
CON TRO L
M ODULE
MP
MS
M anu al drain
PO W ER
S U P P LY
* IN S TA L L E R S ID E
* * O N LY C _ 1 M O D E L Fig.
7.11.1
Carried out by the installer
Carel code +030221761
TB
K
F1-F2
TR
TP
MS
Terminal block
Contactor
Auxiliary fuses
Toroidal transformer
Circuit breaker
Manual switch
S1
LS
FV
DV
LE
CE
Safety thermostat
Level switches
Fill valve
Drain valve
High level electrodes
Conductivity meter electrodes
R1-R2-R3
QC1-QC2
ST
PTC1- PTC2- PTC3 (1)
13-14
21
Electrical elements
Quick connectors
Sensor terminal block
Element temperature sensors
Auxiliary contacts contactor K
(1) optional in the version C0,
standard in the version C1
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
7.12 Single-phase wiring diagram for 6kg/h humidifiers with type H or T control module
1
1
2
2
A
B C
D E
F
B R ID G IN G C O N N E C T IO N
R E L AY 1
D EHUM ID IF.
RE LAY
E
1G
2G
ALA RM
RELAY
WARNINGS:
EXTERN AL
SIGN AL
C
F1
F2
TB
N
L
QC2
ST
G
1H
2H
3H
H
1I
2I
3I
4I
5I
6I
7I
8I
K
C
R E LAY B O A R D
TP
B
I
3
6
2
5
1
4
S1
2
4
1
3
3
6
3C
1C
4C
5B
2
5
4B
1
4
4
8
3
7
2
6
7A
1
5
3A
2B
6B
B C
A
D E
F
CE
NTC
3B
LS
QC1
A
J
1 2 3
J J J
PE
D
6D
3D
4D
1D
LE
1K
2K
3K
K
1. EXTERNAL SIGNAL
see Figs.: 7.5.1.2 / .2.2
/ .2.5 / .3.2
2. BRIDGING
CONNECTION
see Fig.7.8.3
6 5 4 3 2 1
E E E E E E
PTC1
PTC2
PTC3
R1
R2
R3
4A
4
J
STEA M
B O IL E R U N I T
TR
FV
DV
SERIAL
LINE
*
MS
MP
CONTROL
M ODULE
M an u a l d ra in
POW ER
S U P P LY
* IN S TA L L E R S ID E
Fig. 7.12.1
Carried out by the installer
Carel code +030221761
TB
K
F1-F2
TR
Terminal block
Contactor
Auxiliary fuses
Toroidal transformer
FV
DV
LE
CE
TP
MS
S1
LS
Circuit breaker
Manual switch
Safety thermostat
Level switches
C
R1-R2-R3
QC1-QC2
ST
Fill valve
Drain valve
High level electrodes
Conductivity meter
electrodes
Filter
Electrical elements
Quick connectors
Sensor terminal block
PTC1-PTC2-PTC3 (1)
NTC (1)
13-14
FAN (1)
Element temperature sensors
Water temperature sensor
Auxiliary contacts contactor K
Fan
FSB (1)
SSR (1)
S2 (1)
Fan control board
Solid state relay
Circuit breaker
22
(1) optional in the versions H0 and T0,
standard in the versions H1 and T1
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
7.13 Three-phase wiring diagram for humidifiers with type C control module
1
2
1
3
3
2
1
2
A B C D E
3
A B C D E
F
C O N N E C T IO N
R E L AY 1
2
D E H U M ID IF.
R E L AY
1
3
A L AR M
R E L AY
1. EXTERNAL SIGNAL
see Figs.: 7.5.1.2 / .2.2
/ .2.5 / .3.2
2. BRIDGING
CONNECTION
see Fig.7.8.3
E
1G
2G
Q C2
ST
E XT E RN A L
S IG N A L
F1
F2
TB
L1 L2 L3
1H
2H
3H
1K
2K
3K
K
C O N N E C T IO N
D A TO G L IE R E IN C A SO D I M O N TA G G IO
D E L SE N SO RE D I TE M PE R AT U R A PT C
6 5 4 3 2 1
E E E E E E
G
WARNINGS:
F
1I
2I
3I
4I
5I
6I
7I
8I
H
TP
6
2
5
1
4
6D
3D
4D
1D
D E
BC
A
F
S1
CE
LE
K
C
R E L AY B O A R D
B
I
3C
1C
4C
2
4
1
3
3
6
5B
2
5
4B
1
4
4
8
3
7
2
6
7A
1
5
3A
6B
2B
3B
Q C1
A
J
1
J
PE
D
3
2 3
J J
4A
**
4
J
LS
PT C1
PT C2
PT C3
R1
R2
R3
STEA M
B O IL E R U N IT
TR
DV
FV
S E R IA L
L IN E
*
CONTROL
M O DULE
MP
MS
M a n u al d rain
PO W ER
S U P P LY
* IN S TA L L E R S ID E
* * O N LY C _ 1 M O D E L
Fig. 7.13.1
Carried out by the installer
Carel code +030221761
TB
K
F1-F2
TR
TP
MS
Terminal block
Contactor
Auxiliary fuses
Toroidal transformer
Circuit breaker
Manual switch
S1
LS
FV
DV
LE
CE
Safety thermostat
Level switches
Fill valve
Drain valve
High level electrodes
Conductivity meter electrodes
R1-R2-R3
QC1-QC2
ST
PTC1-PTC2-PTC3 (1)
NTC (1)
13-14
23
Electrical elements
Quick connectors
Sensor terminal block
Element temperature sensors
Water temperature sensor
Auxiliary contacts contactor K
(1) optional in the version C0,
standard in the version C1
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
7.14 Three-phase wiring diagram for humidifiers with type H or T control module
1
1
2
+
RSS1
3
S2
A
R E L AY 1
RSS2
D E
A
F
D EHUM ID IF.
RELAY
ALA RM
RELAY
EXTERN AL
SIGN AL
C
F2
TB
1G
2G
TP
F
C O N N E C T IO N
QC2
ST
1H
2H
3H
H
D
1I
2I
3I
4I
5I
6I
7I
8I
3
6
2
5
1
4
6D
3D
4D
1D
A
C
D E
F
S1
CE
LE
K
C
M A IN B O A R D
B
I
2
4
1
3
3
6
3C
1C
4C
5B
2
5
4B
1
4
6B
4
8
3
7
2
6
7A
1
5
3A
2B
3B
A
J
2 3
J J
LS
NTC
QC1
1
J
L1 L2 L3 PE
D E
E
1K
2K
3K
K
C
6 5 4 3 2 1
E E E E E E
G
WARNINGS:
F1
C
C O N N E C T IO N
FAN
+
FSB
1. EXTERNAL SIGNAL
see Figs.: 7.5.1.2 / .2.2
/ .2.5 / .3.2
2. BRIDGING
CONNECTION
see Fig.7.8.3
1
2
3
1
2
3
2
3
PTC1
PTC2
PTC3
R1
R2
R3
4A
4
J
STEA M
B O IL E R U N I T
TR
FV
DV
SERIAL
LINE
*
MP
MS
CONTROL
M ODULE
M a n u a l d ra in
POW ER
S U P P LY
* IN S TA L L E R S ID E
Fig. 7.14.1
Carried out by the installer
Carel code +030221761
TB
K
F1-F2
TR
TP
MS
S1
LS
Terminal block
Contactor
Auxiliary fuses
Toroidal transformer
Circuit breaker
Manual switch
Safety thermostat
Level switches
FV
DV
LE
CE
C
R1-R2-R3
QC1-QC2
ST
Fill valve
Drain valve
High level electrodes
Conductivity meter electrodes
Filter
Electrical elements
Quick connectors
Sensor terminal block
PTC1-PTC2-PTC3 (1)
NTC (1)
13-14
FAN (1)
FSB (1)
SSR (1)
S2 (1)
24
Element temperature sensors
Water temperature sensor
Auxiliary contacts contactor K
Fan
Fan control board
Solid state relay
Circuit breaker
(1) optional in the versions H0 and T0,
standard in the versions H1 and T1
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
8. Steam distribution
For optimal performance of the humidifier, the steam produced must be introduced into the environment in a uniform way,
without projecting droplets and without noticeable condensation, using ventilated steam distributors or linear distributors. The
steam distributor must be chosen according to the place where the steam is introduced. If the steam is to be distributed directly
into the environment (rooms, warehouses, etc.), the ventilated steam distributors used (optional) should be fitted with a
motorised fan. If, on the other hand, the steam is to be introduced into a duct or air handling system, linear distributors must
be used, which exploit the speed of the air itself for distribution.
8.1 Ambient steam distribution: ventilated steam distributors
Ventilated steam distributors, used to distribute steam
directly into the environment, can be mounted onto
the humidifier (see Fig. 8.1.1) or positioned
separately and connected to the humidifier (see Fig.
8.1.2) using steam conveyance tubing.
The drawings show the minimum recommended
distances to prevent the flow of humidified air from
coming into direct contact with persons, lights,
electrical appliances, false ceilings and cold surfaces
before the steam is completely absorbed by the
environment. For further details on the mounting
and use of ventilated steam distributors, please refer
to the specific instruction manual.
> 0,5 m
> 0,5 m
>5m
≥ 2,1 m
Fig. 8.1.1
> 0,5
> 0,5
>5
L≤4
Fig. 8.1.2
8.2 Steam distribution in cold rooms
It is possible to humidify a cold room using a ventilated steam distributor, ensuring that this works within the limits of its
operating range. The cold room must have an operating temperature between -10°C and +20°C, with a relative humidity of not
over 80% rH. If these limits are not possible, the steam can be distributed in the cold room using a linear distributor.
In any case, the steam must not come into direct contact with cold air streams from the cold room's refrigeration unit, to avoid
possible re-condensation.
8.3 Ducted steam distribution: linear and concentrated jet distributors (OEM)
For steam distribution in air ducts, the steam distributor must be suitably proportioned to the power of the humidifier and the
cross-section of the ducts. For this purpose, Carel supplies two ranges of linear distributors: one in aluminium, with plastic
ends (type E) and a premium range, made completely from AISI 304 stainless steel with double chamber (type L).
Figures 8.3.1 and 8.3.2 provide the dimensions of Carel distributors.
Table 8.3.1 indicates the minimum number and model of the distributors recommended for the type of humidifier used.
models
distributor code
rated length
UR002
UR004
UR006
UR010
SDP45E (aluminium)
SDP65E (aluminium)
SDP85E (aluminium)
SDP120E (aluminium)
SDP05L (stainless steel)
SDP06L (stainless steel)
SDP08L (stainless steel)
SDP10L (stainless steel)
SDP12L (stainless steel)
SDP16L (stainless steel)
SDP20L (stainless steel)
450mm
650mm
850mm
1200mm
450mm
550mm
750mm
950mm
1150mm
1600mm
2000mm
1
1
1
1
1
-
1
1
1
1
1
1
1
-
1
1
1
1
1
1
1
1
1
-
1
1
1
1
1
1
1
1
1
Tab. 8.3.1
SDP∗∗E - Aluminium and plastic distributors
50
50
31,5
Warning: when using steam tubing with
an internal diameter of 30mm, remove
the 22mm steam inlet section
Steam input
31,5
holes D
31,5
31,5
D 22 D 30
31,5
31,5
D 56
31,5
100
50
57,5
50
inclinazione 2°
D8
D60
condensation drainage
holes D
Drilling tempale
Fig. 8.3.1
Carel code +030221761
25
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
SDP∗∗S / SDP∗∗L - Stainless steel distributors
50
50
SDP∗∗S Models
SDP∗∗L Models
Steam input
D
60
50
holes D
D = 22
D = 30
D 50
50
35
35
60
D8
gradient 2°
35
35
35
35
codolo M6 L 15
condensation drainage
Drilling template
Fig. 8.3.2
The linear distributors are mounted (see Fig. 8.3.3):
• by making a series of holes in the wall of the duct, as per the
drilling template indicated in Figs.: 8.3.1 or 8.3.2;
• inserting the distributor with the steam outlet holes facing
upwards;
• fastening the flange of the distributor using 3 screws.
> 2°
To allow the condensation to return through the drain
connection (see Installing the condensation return tubing),
mount the distributor at a slight angle (at least 2°-3°) with the
inlet connection nearer than the closed end, which, for this
reason, must be adequately supported.
Fig. 8.3.3
8.4 Concentrated jet steam distribution (OEM)
For special applications (e.g. steam baths, technological machinery) a plastic OEM concentrated jet distributor is available,
with holes (12 or 22mm) or without, allowing the user to make these according to requirements (see Fig. 8.4.1).
The OEM distributors can be fitted, horizontally or vertically with the hole facing upwards, onto a support with the same holes
as per the drilling template for the aluminium linear distributor (see Fig. 8.3.1).
50
50
31,5
Y
Steam input
31,5
D 22 D 30
OEM12
OEM22
OEM00
Y = 12
Y = 22
Y=0
Y
31,5
D 56
31,5
100
50
57,5
Fig. 8.4.1
holes D
D8
condensation drainage
Warning: when using steam tubing with an internal diameter
of 30mm, remove the 22mm steam inlet section mm
D 30
D8
D 22
condensation drainage
Steam input
8.5 Positioning linear distributors in the air duct
Depending on the dimensions of the air duct, the distributors must be as long as possible and placed away from curves,
branches, changes in cross-section, grids, filters, fans.
The minimum recommended distance between the steam distributor and the nearest obstacle is around 1÷1.5 metres, yet this
strongly depends on the operating conditions; it in fact increases as a result of:
• the increase in speed of the air in the duct;
• the increase in relative humidity of the air before and, above all, after humidification;
• the decrease in turbulence.
The distance can be shortened using a series of distributors in parallel.
Carel code +030221761
26
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
Refer to the layout and the distances between the distributor and the walls of the duct and/or between two distributors as shown
in the following drawings.
H>250
min 200
Fig. 8.5.1
Fig. 8.5.2
≥ 70
1
≥200
≥200
/3 H
H>400
H>350
H>250
1
3H
Fig. 8.5.3
2
5H
1
5H
Fig. 8.5.4
Fig. 8.5.5
2
5H
1
5H
H>600
H>500
≥200
≥200
Fig. 8.5.6
min200
2
7H
7H
2
7H
7H
1
7H
2
7H
2
1
Fig. 8.5.7
H>200
H>300
H>500
=
=
=
Fig. 8.5.8
1
2H
=
=
=
=
= =
Fig. 8.5.9
1
3H 1
3H
=
Fig. 8.5.10
Fig. 8.5.11
8.6 Installation of the steam conveyance tubing
The connection between the humidifier and distributor must be made using suitable tubing, such as the Carel flexible tubing.
The use of incorrect tubing may lead to fragility and cracks and
consequent steam leaks.
NO
The shape of the tubing must be such as to avoid the accumulation of
condensation and consequent noise (in the form of gurgling) and loss of
efficiency; the course of the tubing must exploit gravity to drain the recondensed steam back to the boiler or the distributor.
Avoid the formation of pockets or traps where condensation may form;
NO
furthermore, ensure that the tubing is not choked due to tight bends or
twisting (see Fig. 8.6.1).
Fasten the ends of the tubing to the connections on the humidifier and
the steam distributor using screw clamps, so that they do not come loose
as a result of the temperature.
Fig. 8.6.1
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Depending on the position of the steam distributor, the course of the tubing may be one of the following:
1. upwards with a vertical section at least 300mm in length, followed by a bend with a minimum radius of 300mm, and finally
a downward section with a constant slope of not less than 5° (see Fig. 8.6.2);
2. for very short courses (less than 2 metres), a bend with a minimum radius of 300mm followed by from an upward section
with a slope of not less than 20° (see Fig. 8.6.3).
C
> 5°
> 5°
> 20°
> 5°
R > 300
D > 200
D > 200
H≤2m
R > 300
Fig. 8.6.2
Fig. 8.6.3
IMPORTANT WARNING: the recommended length of the steam conveyance tubing is less than 4m.
8.7 Installing the condensation return tubing
Due to the re-condensation of part of the steam produced, condensation forms in the steam conveyance tubing and inside the
distributor which must be drained to avoid gurgling and loss of efficiency.
The condensation is drained by the effect of gravity with the help of flexible tubing suitable for this purpose. The use of
incorrect tubing can lead to fragility and cracks and consequent steam leaks.
To avoid the non-condensed steam from being released through the condensation tubing, a trap must be created by curling a
part of the drain tubing.
The end of the condensation tubing can be connected to the nearest drain tube, with a minimum slope of 5° to assist the
discharge (see Fig. 8.6.2).
If the distance of the distributor allows, the tubing can be connected to the special connection C, supplied, to be screwed onto
the top of the humidifier, allowing condensation to be drained directly into the boiler fill tank (see Fig. 8.6.3).
IMPORTANT WARNING: for correct functioning, the trap must be filled with water before starting the humidifier.
8.8 Checks
The following conditions represent the correct installation of the steam tubing:
• the position of the steam distributor conforms to that described in this chapter, the steam outlet tubing points upwards and
the distributor is inclined at least 2° upwards;
• the ends of the tubing are fastened with metal screw clamps;
• the bends in the tubing are quite wide (radius > 300mm) so as not to cause pinching or choking;
• there are no pockets or traps in the steam tubing to avoid condensation;
• the courses of the steam tubing and the condensation tubing conform to those described in this chapter;
• the length of the steam tubing does not exceed 4 metres;
• the slope of the steam tubing is sufficient to drag the condensation (> 20° for the upward sections, > 5° for the downward
sections);
• the slope of the condensation tubing is at least 5° at each point;
• the condensation tubing features a trap (filled with water before start-up) to avoid the release of steam.
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9. START-UP
IMPORTANT WARNING: on completion of the installation procedure, drain the supply tubing for around 30 minutes
by passing water directly through the tubing and without introducing it into the humidifier. This will allow the
elimination of any scoria and processing residues which may cause the formation of foam during the boiling.
9.1 Preliminary checks
Before starting the humidifier, check that:
• the hydraulic and electrical connections are made and the steam distribution
system is configured according to the instructions contained herein;
• the shut-off tap for water into the humidifier is open;
• the power fuses are installed and in tact;
• terminals 7I and 8I are connected by jumper or connected to the remote
ON/OFF contact, and that the latter is closed;
• the probes or the external command device are correctly connected (and that
the ground of these devices is electrically connected to the ground of the
main control board);
• the steam emission tubing is not choked;
• in the event of ducted humidification, the operation of the humidifier is slave
to the operation of the air fan (replacing or in series with the remote
ON/OFF contact);
• the distributor condensation return tubing is installed and free;
• the drain tubing is correctly connected and free.
Fig. 9.1.1
Prima dell’avviamento verificare che l’umidificatore sia in perfette condizioni, che non vi siano perdite
d'acqua e che le parti elettriche siano asciutte.
Non applicare la tensione se l’apparecchio è danneggiato o anche parzialmente bagnato!
9.2 Removing the element centring spring (only for three-phase models)
To prevent the elements in three-phase models hitting each other or against the internal wall of the cylinder and thus
damaging the appliance, due to vibrations or bumps during transport, the heating elements are factory-fitted with a centring
spring which has no function during the operation of the appliance.
As the centring spring may hinder the removal of lime-scale from the elements and diminish the interval between cleaning
cycles, the spring should be removed before the initial start-up.
To do this, remove the cylinder by following the relative instructions (see Maintenance of the cylinder-boiler).
9.3 Start-up
ON
After having closed the power switch to the humidifier, turn the appliance on by moving the
rocker switch (coupled with the DRAIN button) located in the bottom right of the frame, to
the I position.
The start-up sequence is thus initiated. This includes the initial phase, the autotest phase,
and finally, the actual operating phase.
According to the model of the humidifier's control module, the start-up sequence is
signalled by the illumination of the LEDs on the control panel, as described in the following
chapter.
Fig. 9.3.1
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10. THE HUMIDIFIER CONTROLLER
Two types of electronic controller are available for the electrical heater humidifier (see REGULATION PRINCIPLES):
• Type C control module, with indication LEDs and ON/OFF action
This control provides regulation of the steam production capacity and ON/OFF regulation.
• Type H or T control module, with numeric LED display and modulating action
This control provides complete regulation of the steam production capacity, with optional dehumidification function; it
accepts signals from humidity probes or from proportional (or ON/OFF) external electronic devices.
10.1 Type C control module, with indication LEDs and ON/OFF action
10.1.1 Front panel
6
7 9
4
1
2
n.
1
2
3
4
5
6
7
8
9
8
5
3
description
reset button for the alarm relay (if the alarm is no longer active)
increase programmed steam production button
decrease programmed steam production button
set steam production bar graph (percentage)
bar graph indicating any active alarms
LED indicating current steam production
LED indicating operation of drain electrovalve
LED indicating operation of the fill electrovalve
flashing LED indicating alarm relay activated
Tab. 10.1.1.1
Fig. 10.1.1.1
The ON/OFF version allows the display and modification only of the steam production parameter.
The other functional parameters are factory set and can not be modified by the user (they can however be accessed via
serial line).
10.1.2 Start-up sequence
On starting-up the humidifier, the start-up sequence occurs, signalled by the illumination of the LEDs, as described below.
1 - POWER ON
2 - INITIALISATION
3 - OPERATION
Fig. 10.1.2.3
In this phase, lasting around a Duration around 4 seconds. The LEDs
second, all the LEDs on the highlighted here are all illuminated on
display are illuminated.
the display of the control module.
Fig. 10.1.2.1
Fig. 10.1.2.2
The humidifier, if enabled performs the autotest, and thus
begins operation; the control module indicates, on the fourstage bar graph (30%; 50%; 75%; 100%), the set steam
production and, in the event of an alarm, the number on the
relative bar code.
10.1.3 Display and control
Normally the panel shows the set steam production capacity, using the 4-stage bar graph (30%; 50%; 75%; 100%).
To change the set value press the ∇ and ∆ buttons. The change to the set production is stored permanently.
10.1.4 Alarm indications
The illumination of LED 9 (see Fig. 10.1.1.1) and a combination of the LEDs 5 indicates the presence of a current alarm state;
in the event of more than one alarms, the LEDs 5 are illuminated in sequence, at 2 second intervals.
At the same time, the control module activates the alarm relay (see ELECTRICAL CONNECTIONS).
To interpret the type of alarm, see ALARMS AND TROUBLESHOOTING.
The control module continues to indicate the alarm state (even if this is no longer active) until the reset button is pressed; still
active alarms can not be reset.
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10.1.5 Manual drain command
In the first 5 seconds from the start-up of the unit (during the autotest sequence: see Fig. 10.1.2.2), press the ∇ and ∆ buttons
at the same time. After 2 seconds the drain electrovalve is activated, until the buttons are released.
When the buttons are released, the command can be repeated within 5 seconds, otherwise the humidifier must be switched off
and on again.
10.1.6 Setting the steam production
The average steam production can be adjusted using a pseudo-modulating action, with the cyclical activation of the remotecontrol switch and a programmable operating interval divided into four steps: 30%; 50%; 75%; 100% of the total time (this
mode can not be applied in severe operating conditions and without consequences on the noise level caused by the frequent
activation of the remote-control switch). To do this, use the ∇ and ∆ buttons, see Fig. 10.1.1.1.
10.2 Type H or T control module, numeric LED display, modulating action
10.2.1 Front panel
10 12 8
7
5
1
3
Fig. 10.2.1.1
11
9
6
2
4
n. description
1 button for accessing the more frequently used functional parameters (codes Px, dx); it also acts as a reset button for the alarm relay (if
the alarm is no longer active)
2 displays the unit of measure of the value shown on the display;
pressed for 2 seconds accesses the display/programming of the Set Point;
if pressed together with button 1 for 5 seconds, accesses the routine for programming the configuration parameters
3 while pressed, displays the value measured by the main probe (with ON/OFF control nothing is displayed); in programming mode acts
as a button to decrease the value or scroll back to the previous parameter
4 while pressed, displays the value measured by the compensation probe (only if featured);
in programming mode acts as a button to increase the value or scroll to the next parameter
5 2 ½ digit display to indicate the numeric values and codes of any active alarms;
during programming shows the codes of the parameters and their values
6 LED representing the decimal point
7 LED for multiplying by one thousand the value indicated on the display
8 LED indicating the activation of the dehumidification relay
9 LED flashing indicating alarm relay activated
10 LED indicating current steam production;
if flashing indicates the pre-heating phase
11 LED indicating operation of the fill electrovalve
12 LED indicating operation of the drain electrovalve
Tab. 10.2.1.1
10.2.2 Start-up sequence
On starting-up the humidifier, the start-up sequence occurs, signalled by the illumination of the LEDs, as described below.
1 - POWER ON
2 - INITIALISATION
3 - OPERATION
Fig. 10.2.2.3
In this phase, lasting around a
second, all the LEDs on the
display are illuminated.
Fig. 10.2.2.1
Duration around 4 seconds. The
LEDs highlighted here are all
illuminated on the display of the
control module.
Fig. 10.2.2.2
The humidifier begins operation, and the control module indicates
(see REGULATION PRINCIPLES) one of the following options:
• steam production (in %) with slave regulation;
• the measurement of the main transducer with autonomous
regulation;
• when the humidifier is disabled, the 3 segments - - - are illuminated in
sequence.
In the event of an active alarm, the LED next to the ALARM marking is illuminated and the display shows the relative code.
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10.2.3 Display
The panel shows the current functional parameter programmed (with the code C0, see Reading and programming the
configuration parameters).
Normally this is:
• the measurement of probe no. 1 (ambient humidity or temperature), in appliances with autonomous regulation;
• steam production in appliances with slave regulation.
Pressing the SEL button displays for one second the unit of measure of the measurement displayed.
Pressing the ∆ button shows the measurement of probe 1 (if fitted), preceded for 1 second by the corresponding unit of
measure. The display is valid even in the event where the probe is not connected.
Pressing the ∇ button shows the measurement of probe 2 (if fitted), preceded for 1 second by the corresponding unit of
measure. The display is valid even in the event where the probe is not connected.
To display the Set Point (value of main setting):
• press the SEL button for around 2 seconds, until St appears (see Fig. 10.2.3.1);
• on releasing the button, the unit of measure of the Set Point is displayed for 1 second, and finally the current set value.
Fig. 10.2.3.1
Press for 2 seconds
Furthermore, the frequently-used functional parameters can also be displayed, that is those more commonly used by the
appliance: to do this, follow the instructions in: Reading and programming the regulation parameters - reading the
measurements.
10.2.4 Changing the Set Point
To change the Set Point (main regulation setting), follow the instructions in: Reading and programming the Set Point.
10.2.5 Alarm indication
In the event of an alarm state, the LED 9 (see Fig. 10.2.1.1) starts flashing, while the display shows the alphanumeric alarm
code, alternating every 2 seconds with the programmed value of the functional parameter.
If more than one alarm is indicated, the display shows all the corresponding codes in sequence, at 2 second intervals.
At the same time, the control module activates the alarm relay (see ELECTRICAL CONNECTIONS). To interpret the type
of alarm, refer to: ALARMS AND TROUBLESHOOTING. The control module will continue to indicate the alarm state
(even if it is no longer active) until the reset button is pressed; still active alarm states can not be reset.
10.2.6 Manual drain command
In the first 5 seconds from the start-up of the unit (during the autotest sequence: see Fig. 10.2.2.2), press the ∇ and ∆ buttons
at the same time. After 2 seconds the drain electrovalve is activated, until the buttons are released. When the buttons are
released, the command can be repeated within 5 seconds, otherwise the humidifier must be switched off and on again.
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11. READING AND PROGRAMMING THE PARAMETERS OF THE TYPE H
OR T CONTROL MODULE
The numerical, configuration and control panel parameters are grouped into three levels:
1. LEVEL 1 - Set Point, that is the value of the appliance's main setting St, accessible directly via the keypad for both
reading and modification.
2. LEVEL 2 - regulation parameters and measurements, that is the physical vales measured and the functional parameters
involving the regulation of the humidification process; these too can be accessed directly via the keypad for reading and
modification.
3. LEVEL 3 - configuration parameters consisting of the data needed to customise the control, according to the
requirements of the humidifier. These parameters are can be accessed only by password, to prevent the unwanted
modification of the configuration and thus the humidifier's essential functions.
Each parameter is composed as follows:
code
range of variation
default
unit of measure
alphanumeric symbol appearing on the display corresponding to the parameter in
question
limit values within which the parameter can be modified
value set in the factory for the parameter
symbol displayed showing the unit of measure used for the parameter
Tab. 11.1
/
Warning: the numerical values from 200 a 255 are displayed with the symbol
in the place of the hundreds digit 2 (due to the specific constructive configuration
of the display).
Figure 11.1 shows how the number 215 is displayed.
Fig. 11.1
11.1 Reading and programming the Set Point
To read and/or change the Set Point, proceed as follows:
• press the SEL button for around 2 seconds, until St appears;
• on releasing the button, the unit of measure of the Set Point is displayed for 1
second, and finally the current set value;
• to change the Set Point, press the ∇ and ∆ buttons, checking that the action
is being performed on the display;
• press the SEL or PRG button to confirm the value displayed and conclude the
programming of the Set Point.
Fig. 11.1.1
Press for 2
seconds
The characteristics and the range of variation of the Set Point are listed in Table 11.1.1.
type H control module
type T control module (for steam baths)
11.2 Reading and
measurements
programming
unit of
measurement
% rH
°C
the
default value
regulation
50
30
minimum limit maximum limit
0
0
parameters
P7
50
Tab. 11.1.1
-
reading
the
The regulation parameters represent the values relating to the process of ambient humidity (or temperature) control and are
identified by a code ranging between P0 and P9, according to the criteria described in Table 11.2.1.
The readings are on the other hand the physical values measured by the transducers connected to the control, depending on the
model and the setting of the humidifier, and the number of operating hours from the previous reset; the measurements are
identified by a code ranging between d1 and d9 (see Tab. 11.2.2).
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regulation parameters
code on range of
display variation
10, ...100
P0
P1
P2
P3
P4
P5
P6
P7
P8
P9
2.0, .., 19.9
(P3), .., 100
0, .., (P2)
0, .., 6000
2, .., 100
2.0, .., 19.9
(St), .., 100
2.0, .., 19.9
0, .., 100
default
100
unit of
measure
%
description
5.0
100
0
60
10
5.0
100
5.0
100
% rH
% rH
% rH
s
% rH
% rH
% rH
% rH
% rH
default
unit of
measure
%
% rH
% rH
measurement signal from external regulator
measurement from ambient probe
measurement from supply probe
kg/h
h
µS/cm
°C
steam production
hour counter
conductivity
water temperature
kg/h
nominal steam production
maximum production in the event of modulation disabled (b0=0), the production is always at 100% of the
nominal value, irrespective of the value of the parameter
humidification differential
high humidity alarm threshold
can only be accessed in
low humidity alarm threshold
autonomous regulation (A0=2 or 3)
alarm delay
dehumidification dead zone
can only be accessed with dehumidification
humidification differential
function enabled (b1=2 or 3)
supply Set Point
can only be accessed in autonomous regulation
supply differential
with supply probe (A0=3)
high supply humidity alarm threshold
Tab. 11.2.1
list of measurements
code on range of
display variation
0, .., 100
d1 (1)
d2
0, .., 100
d3
d4
d5
d6
0.0, .., 199
0, .., 19900
0, .., 1500
0, .., 100
d9
0.0, .., 199
only
reading
description
can only be accessed in slave or autonomous
regulation (A0=1, 2 or 3)
can only be accessed in autonomous regulation with
supply probe (A0=3)
can only be accessed with pre-heating function enabled
(b1=1 or 3 )
Tab. 11.2.2
(1): in proportional operation (A0=1), d1 is expressed as a % of the working interval selected by A2; for information on A0 and A2: see Tab. 11.3.1.
To display the regulation parameters and the
measurements, proceed as follows:
1. Press the PRG button for around 5 seconds until the
code P0 appears, representing the first parameter (see
Fig. 11.2.1);
2. Press the ∆ or ∇ button to scroll cyclically through the
Px and dx parameters, including the Set Point;
3. Press the SEL button to display the value of the selected
parameter; the unit of measure of the parameter is
displayed for 1 second;
4. Press the PRG button to conclude the programming
phase.
To modify the regulation parameters (the measurements
can only be read), proceed as follows:
1. Press the PRG button for around 5 seconds until the
code P0 appears, representing the first parameter (see
Fig. 11.2.2);
2. Press the ∆ or ∇ button to scroll cyclically through the
Px and dx parameters, including the Set Point;
3. Press the SEL button to display the value of the selected
parameter; the unit of measure of the parameter is
displayed for 1 second;
4. Press the ∆ or ∇ button to modify the value; keeping
one of the buttons pressed increases the scrolling speed
(see Fig. 11.2.3);
5. Press the SEL button to confirm the new value
displayed; the identifying code Px or dx of the selected
parameter will reappear;
6. Display and modify any other parameters, repeating
steps 2 to 5;
7. Press the PRG button to permanently save the
modifications and conclude the programming phase.
1 - press PRG for 5s until P0 appear
2 - press repeatedly to scroll to
desired parameter
Fig. 11.2.1
3 - press SEL to display desired
parameter
1 - press PRG for 5s until P0
appears
2 - press repeatedly to scroll to
desired parameter
3 - press SEL to display value of
desired parameter
Fig. 11.2.2
4 - press repeatedly until reaching desired value for
parameter being modified
5 - press SEL to confirm the value
displayed (see Figure)
6 - press repeatedly to scroll to next
desired parameter and repeat
steps 2 to 5
7 - press PRG to save the new data
Fig. 11.2.3
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11.3 Reading and programming the configuration parameters
The configuration parameters are used to set the operating mode of the controller, that is to assign the humidifier's essential
functions.
The configuration parameters are divided into three groups:
• Parameters for configuring standard operation (operating mode and types of probes), identified by codes from A0 to A9:
see Table 11.3.1.
• Parameters for configuring the operation of accessory devices, identified by codes from b0 to b7: see Table 11.3.2.
• Parameters for the setting the serial connections and remote control, identified by codes from C0 to C7: see Table
11.3.3.
These parameters can be accessed only by password to prevent the unwanted modification of the configuration.
code
disp.
A0
range of
variation
0,.., 3
default
A1
0, 1
0
A2
0, .., 4
1
A3
A4
A5
A6
0, .., (A4)
(A3), .., 255 *
-10.0, ..., 10.0
0, .., 4
0
100
0
1
A7
A8
A9
0, .., (A8)
(A7), .., 100
-10.0, ..., 10.0
0
100
0
3
parameters for configuring standard operation
unit of
description
measure
operating mode
0=ON/OFF command
1= slave regulation
2=autonomous reg. with ambient probe
3=autonomous reg. with ambient probe and
supply probe
unit of measure
0=°C, kg/h
1=°F, lb/h
signal applied to ambient probe input
0=0/1V
1=0/10V
can only be accessed in slave or
2=2/10V
autonomous regulation (A0=1, 2 or 3)
3=0/20mA
4=4/20mA
% rH
ambient probe minimum
can only be accessed in autonomous regulation
% rH
ambient probe maximum
(A0=2 or 3)
% rH
ambient probe calibration
signal applied to the supply probe input 0=0/1V
can only be accessed in autonomous
1=0/10V
regulation with supply probe (A0=3)
2=2/10V
3=0/20mA
4=4/20mA
% rH
supply probe minimum
can only be accessed in autonomous
% rH
supply probe maximum
regulation with supply probe
% rH
supply probe calibration
(A0=3)
Tab. 11.3.1
*: see WARNING to side of Fig. 11.1.
code
disp.
b0
b1
range of
variation
0, .., 199
0, .., 3
default
b2
2, .., 19.9
3.0
b3
b4
70, .., 90
0, .., 2000
80
0
b5
b6
b7
0, .., 2000
0, .., 2000
0, .., 100
2000
2000
50
**
0
parameters for configuring the operation of accessory devices
unit of
description
measure
s
period of modulation (if set to 0 modulation is disabled)
special functions
0 = no function
1 = pre-heating
can not be accessed in ON/OFF mode
2 = dehumidification
(A0=0)
3 = pre-heating and dehumidification
%
pre-heating start offset
can only be accessed with pre-heating
% rH
(referred to the pre-heating
function enabled (b1=1 or 3)
°C
temperature Set Point)
supply water conductivity: if set to 0 the conductivity is measured automatically, otherwise,
µS/cm
the set value is used
conductivity pre-alarm threshold
µS/cm
conductivity alarm threshold
µS/cm
%
regulation of the foam detection threshold (if set to 0 foam detection is disabled)
Tab. 11.3.2
**: the default value depends on the size of the humidifier.
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parameters for setting the serial connections and remote control
unit of
description
measure
code
disp.
C0
range of
variation
default
1, .., 6
1
normally displayed value
C1
0, .., 4
4
enable keypad and remote control
keypad:
0= reading of all parameters, (modification of
C1 only)
1= reading and modification of all parameters
2= reading of all parameters, (modification of
C1 only)
3= reading and modification of all parameters
4= reading and modification of all parameters
Code enabling remote control
Serial address
baud-rate
frame
0=8,N,2
1=8,N,1
2=8,E,2
3=8,E,1
4=8,O,2
5=8,O,1
serial reply send delay
graphic terminal configuration
in cases 1,2,3 the OFF command is forced on
start-up
C2
C3
C4
C5
0, .., 99
0, .., 199
0, .., 3
0, .., 11
0
1
3
0
C6
C7
0, .., 199
0, .., 3
0
0
ms
1= ambient probe measurement
2= supply probe measurement
3= steam production
4= hour counter
5= conductivity 6= water temperature
remote control:
reading and modification parameters P, d and St
reading and modification parameters P, d and St
reading parameters P, d and St
reading parameters P, d and St
reading and modification of all the parameters
0=1200 1=2400 2=4800 3=9600
(character bits, parity, stop bit)
6=7,N,2
7=7,N,1
8=7,E,2
9=7,E,1
10=7,O,2
11=7,O,1
0=standard terminal
1=terminal with ON/OFF command
2=term. with ON/OFF and ambient probe
3=term. with ON/OFF and supply probe
Tab. 11.3.3
To read or modify the configuration parameters, proceed as follows:
1 - press SEL and PRG together for
5s until 00 appears
1. Press the SEL and PRG buttons together for around 5
seconds, until the code 00 appears, requiring the password to
be entered (see Fig. 11.3.1);
2. Press the ∆ or ∇ button until the password value is reached
(number 77);
2 - press repeatedly to scroll to
the password, 77
Fig. 11.3.1
3 - press SEL to confirm password; A0 appears
3. Press the SEL button to confirm the password. If the
password is not correct, the programming phase is
terminated, otherwise A0 is displayed (see Fig. 11.3.2);
4. Press the ∆ or ∇ button to scroll cyclically through the Ax,
bx and Cx parameters, including the Set Point;
5. Press the SEL button to display the value of the selected
parameter; the unit of measure of the parameter is displayed
for 1 second;
6. Press the ∆ or ∇ button to modify the value (keeping one of
the buttons pressed increases the scrolling speed);
4 - press repeatedly to scroll to
desired parameter
5 - press SEL until the value of
the desired parameter is
displayed
Fig. 11.3.2
6 - press repeatedly until reaching desired value for
parameter being modified
7. Press the SEL button to confirm the value displayed; the
identifying code Ax, bx or Cx of the selected parameter
reappears (see Fig. 11.3.3);
8. Display and modify any other parameters, repeating steps 4
to 7;
9. Press the PRG button to permanently save the modifications
and conclude the programming phase.
7 - press SEL to confirm the value
displayed (see Figure)
8 - press repeatedly to scroll to next
parameter to modify and repeat
steps 4 to 7
9 - press PRG to save the set data
Carel code +030221761
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Fig. 11.3.3
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
11.4 Validity of the modifications to the parameters
The modifications made to the parameters normally take effect when confirmed with the SEL button, and are saved
permanently with the PRG button. For some parameters relating to the serial connection, the value will only take effect only
the next time the unit is switched on. During the programming phase, 5 seconds after the last button is released, the display
begins flashing (to remind the user that he is in programming phase). Sixty seconds after the last button is released, if the
value of a parameter is being displayed, any modifications are ignored and the display returns to the parameter's identifying
code. After a further 5 seconds, the display begins flashing again, and after 60 seconds the programming phase is terminated
and the parameters return to the values previous to the programming phase. If, on the other hand, the parameter's identifying
code is being displayed, the programming phase is terminated directly after 60 seconds (time out).
11.5 Recalling the default parameters (factory settings)
flashing
press for 5 s.
on starting
the machine
Fig. 11.5.1
The default values can be recalled only on start-up, and in the following way:
• in the first 5 seconds from start-up (while the three dashes are displayed), press the PRG button until the upper dash in the
centre flashes, as indicated in the Figure;
• release the PRG button within 3 seconds to confirm the recall and permanent saving of the default parameters; to confirm the
saving of the values, the upper dash will stay on for 2 seconds (as displayed in Fig. 11.5.1);
• the operation is not effected if the PRG button is pressed for more than 3 seconds, until the upper dash disappears.
Recalling the default parameters does not change the parameter relating to the unit of measure (A1), it is thus
recommended to check and if necessary select and save the unit of measure as required, and then recall the default parameters.
In this way the default values will automatically be converted.
Resetting the hour counter
To reset the hour counter (parameter d4), proceed as follows:
• press the PRG button for 5 seconds, until the code P0 is displayed, indicating the first modifiable parameter; using the ∇
and ∆ buttons, scroll the parameters until d4 is displayed;
• press the SEL button to display the value of the hour counter (preceded for 1 second by the unit of measure);
• press the ∇ and ∆ buttons together for 5 seconds until the value is set to zero, preceded by a brief flash.
11.6 Displaying and modifying the unit of measure
The unit of measure of some parameters depends on the type of control and the programming. Displaying the unit of measure
can thus avoid incorrect interpretation. In the case of non-dimensional measurements, the unit of measure is not displayed. It is
also possible to use imperial rather than standard units of measure (parameter A1). For the procedure to be followed please
refer to: Programming: accessing type A, b and C parameters.
The two digits on the right are used to display the unit of measure:
display
°C
°F
rH
Pr
Lb
Carel code +030221761
unit of measure
temperature in degrees centigrade
temperature in degrees Fahrenheit
relative humidity in %
steam production in kg/h
steam production in pounds/h
Tab. 11.7.1
display
M"
M'
h
uS
O
O
37
unit of measure
time in seconds
time in minutes
time in hours
conductivity µS/cm
percent
Tab. 11.7.2
preliminary version - rel. 2.0 - 03/09/99
heaterSteam
12. THE REMOTE CONTROL (OPTIONAL ACCESSORY)
The remote control is an optional accessory and can only be used on humidifiers with type H or T control module
(modulating).
It is available in two versions:
• TELURI000 with buttons marked in Italian;
• TELURE000 with buttons marked in English.
The infra-red remote control can command the call-up and display on the control module
(see THE HUMIDIFIER CONTROLLER) of the humidifier's parameters, which, if
necessary, can be modified remotely.
Furthermore, the remote control simplifies access to the main parameters, by pressing the
corresponding marked buttons, avoiding the code search phase.
The remote control will operate at up to a distance of 3 metres, and can be used with all
appliances in the heaterSteam family.
In the event where there is more than one humidifier within the remote control's operating
range, the appliance to be operated can be determined by assigning each control module an
individual access code (parameter C2).
Acting on the value of parameter C1 (see Reading and programming the configuration
parameters) allows the parameters which can be read or modified using the remote control
to be selected.
The standard value of C1 (default setting: C1=0) allows access to and modification of type P
and d parameters and the Set Point only.
Fig. 12.1
Description of the remote control
The buttons can be divided into three groups, according to their function.
Buttons for activating/deactivating the remote control
Allow the activation or deactivation of the remote control, saving the values associated with the parameters where necessary
(see Fig. 12.1.1.1).
button
START
PRG
CANCEL
number
buttons
function
enables the use of the remote control
concludes the programming, saving the values attributed to the
parameters where necessary
cancels any modifications
set the access code to the parameters
Fig. 12.1.1.1
Buttons for modifying the main parameters (direct access buttons)
The more-frequently used parameters are indicated directly on the remote control, grouped into areas of different colours
according to the function. Each modifiable parameter has a button with the + sign and one with the - sign to increase or
decrease the value.
The buttons without + or - signs only allow the display of the associated value on the control module.
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Buttons for the remote control of the control module keypad
The section highlighted in green/blue on the remote control (see Fig. 12.1.3.1) reproduces the buttons on the instrument and
allows the same operations to be performed remotely; see Reading and programming the parameters of the type H or T
control module.
button
PRG
SEL
Fig. 12.1.3.1
function
permanently saves the values and exits the programming phase
displays the unit of measure and the value of the selected parameter
confirms the modified value and displays the parameter code
scrolls from one parameter to the next
increases the value on the display during the setting of the parameters
scrolls from one parameter to the previous
decreases the value on the display during the setting of the parameters
Programming from the remote control
To activate or deactivate the access code to use the remote control, enter into the control module configuration mode using
password 77 (see Reading and programming the configuration parameters).
Assigning parameter C2 a value other than 0 (from 01 to 99), activates this number as the access code which must be entered
each time the remote control is used to program that unit.
Obviously, in installations with more than one unit, it is recommended to use a different code for each unit.
Setting parameter C2 back to 0 means the remote control can be used without requiring the access code.
When not in programming phase, the SEL (limited to the display of the unit of measure), PRG (limited to the function of
alarm reset) and the display-only buttons are always active.
Enabling the control for receiving without requiring access code (C2=0)
Exit the programming phase if necessary, press the START button to enable the remote control; the humidifier's control
module will show the code for the fist accessible parameter.
Enabling the control for receiving with access code required (C2≠0)
Exit the programming phase if necessary, press the START button to enable the remote control.
All the units located within the operating range of the remote control will display their own access code.
To access the programming/reading routine, use the numeric keypad (Fig. 12.1.1.1) to enter the access code for the machine to
be operated on. Any zeroes must be included (e.g..: if the display shows 05, press the 0 and then the 5 button).
If the code is correct, the first accessible parameter is displayed.
Reading the measurements
To directly display one of the measurements provided for, press the corresponding button (Fig. 12.2.3.1)
twice.
Fig. 12.2.3.1
Modifying the main parameters (with specific button)
With reference to Fig. 12.2.4.1:
• press either the + or - button corresponding to the parameter to be modified; the display shows
the parameter code;
• press the SEL button again to display the value;
• then press the + or - button to increase or decrease the value.
The values in the memory of the control module will automatically be modified on exiting the
programming phase.
Fig. 12.2.4.1
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Modifying the main parameters (without specific button)
The parameters without a specific button can also be modified, proceeding as follows:
• perform the operations for the enabling of the remote control;
• press the ∇ or ∆ button until the code of the required parameter is displayed;
• press the SEL button to display its value; then press ∇ or ∆ again to increase or decrease the value; finally, press SEL to
temporarily confirm the new value;
• to modify other parameters, repeat the same operations.
Exiting the programming phase
To exit the programming phase and save the modifications made to the parameters, press the PRG button.
To exit without saving the modifications, press the CANCEL button.
To exit the programming phase without confirming the modifications made:
• do not press any button for 60 seconds, if the parameter code is displayed;
• do not press any button for 120 seconds, if the value of the parameter is displayed.
Table of remote control technical specifications
type
power supply
case
dimensions (mm)
storage temperature (°C)
operating temperature (°C)
type of transmission
weight (g)
Carel code +030221761
description
2 (two) 1.5V mini alkaline batteries (type UM-4 AAA, IEC R03)
plastic
60 x 160 x 18
-25 ÷ 70
0 ÷ 40
infra-red
80 (without batteries)
Tab. 12.4.1
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13. SHUTTING DOWN THE UNIT
When shutting down the unit at the end of the season or for maintenance on the electrical and/or hydraulic parts, the
humidifier should be put out of operation.
The water should not be emptied from the cylinder before shutting down the humidifier to avoid the hardening of the
deposits contained in the cylinder and thus making them more difficult to remove.
Fig. 13.1
OFF
Follow the instructions below (safety procedure):
• open the disconnecting switch on the power line to the humidifier;
• open the rocker switch in the lower right of the frame, (see Fig. 13.1)
checking that the display on the control module is off;
• close the shut-off tap for the water supply to the humidifier.
If the cylinder needs to be emptied when shutting down to remove the
deposits, before switching off power to the unit, press the DRAIN rocker
switch, thus forcing the drain electrovalve to open, keeping it in this position
manually until the water is completely emptied (see Fig. 13.1).
The water level can be seen through the level control housing and in the corresponding
connection tube to the bottom manifold, on which the cylinder is inserted.
In the event of malfunctioning of the drain electrovalve, the cylinder can be emptied manually, by removing the connection
tube from the level control housing spigot and slowly draining the water into the bottom collection tank.
The cylinder can also be emptied with the appliance closed, proceeding as follows on the control panel:
• turn the unit off using the rocker switch on the lower right of the frame (see Fig. 13.1);
• turn the unit on again;
• within 5 seconds from turning the unit on, press the ∆ and ∇ buttons together;
• after 2 seconds the drain electrovalve is activated until the buttons are released; when the buttons are released, the
command can be repeated within 5 seconds, otherwise the humidifier will need to be turned off and on again.
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14. MAINTENANCE AND SPARE PARTS
14.1 Maintenance of the cylinder-boiler
For correct operation, the steam production cylinder must be periodically cleaned, at intervals linked to the quantity of salts or
impurities dissolved in the supply water.
This operation is necessary as the lime deposits which form inhibit the exchange of heat between the elements and the water.
IMPORTANT WARNING: DO NOT USE DETERGENTS OR SOLVENTS TO CLEAN THE COMPONENTS IN
THE CYLINDER AND ALL OTHER HYDRAULIC PARTS.
The unit must be cleaned in any case when the element over-temperature alarm is activated (see ALARMS AND
TROUBLESHOOTING), signalled by:
• the illumination of LED 1 and 3, for the type C control module (see Fig. 15.1);
• the display of the message CL for the type H or T control module.
The cylinder may be hot! Let it cool before handling, or use protective gloves.
To access the cylinder:
• turn the appliance off (Fig. 13.1) and open the disconnecting switch on the power line (safety procedure);
• completely empty the water contained in the cylinder (see SHUTTING DOWN THE UNIT);
• open and remove the casing (see Removing and replacing the front casing).
The layout of the humidifier is as in Fig. 14.1.1:
n.
1
2
3
4
5
6
description
pressure balancing tubing
sensor connections
cylinder fastener closing
ext thermal lining (optional) with Velcro fastener
ground connection
level control
Tab. 14.1.1
Fig. 14.1.1
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To remove and clean the cylinder, follow the procedure as described:
1. remove the steam tubing from the upper pipe union of the cylinder (Fig. 14.1.2);
2. disconnect the sensor quick connectors from the cylinder (Fig. 14.1.1, part. no. 2);
3. remove, from the cylinder cover , the pressure balancing tube with the level control tank (Fig.
14.1.1, part. no. 1);
4. remove the protective covers of the element electrical connections (Fig. 14.1.3, part. no. 3) and
disconnect the power cables;
5. remove the cylinder ground screw (Fig. 14.1.1, part. no. 5);
6. undo the cylinder fastener by the lifting the black plastic lever (Fig. 14.1.1, part. no. 3) and
pushing it to the end of its stroke, thus releasing the stop system;
7. lift the cylinder to remove the upper pipe union from the drain unit and remove it from the machine,
paying attention to any drops of water or deposits which may be released from the pipe union;
Fig. 14.1.2
8. if present, remove the external thermal lining (Fig. 14.1.1, part. no. 4), by opening the Velcro
fastener;
9. place the cylinder on a working surface which is protected by a material resistant to the water and lime-scale which will be
released during the cleaning operations;
10. release the cover ring fastening lever and push it to the end of its stroke (Fig. 14.1.3, part. no. 4); remove the metal ring
and remove the plastic cover and connected parts from the cylinder (see Fig. 14.1.4, and exploded view of these parts).
Before handling the elements, ensure that they are not hot! Use protective gloves if necessary.
11. Remove the non-stick film (optional), if present, from the internal wall of the cylinder, and eliminate any lime deposits
from this using a jet of water (see Replacing the components);
12. unscrew the ring nut on the lower cylinder pipe union and remove the bottom filter, which can be reused after cleaning any
deposits; the gasket can be reused or, if damaged, can be replaced and ordered as a spare part;
13. the elements can also be cleaned without removing them from the upper cover; to do this, after having removed the flaky
portion of lime, immerse the heating elements in a warm 20% solution of acetic acid for 30 minutes, removing the
remaining surface deposits with a non-metallic spatula, then rinse well; if the plates are Teflon-coated, avoid using any
type of metal tools so as to not damage the non-stick layer;
14. if necessary, the elements can be removed by unscrewing the fastening nut which holds them to the plastic cover; in this
case the seal gasket should be replaced;
15. remove the deposits and rinse the internal walls of the cylinder and the probe wells (Fig. 14.1.4, part. no. 8).
Re-assemble the cylinder by repeating the above operations in the reverse order, remembering to re-fasten the ground screw
(Fig. 14.1.1, part. no. 5).
The procedure described above refers to the three-phase version (see Figs.: 14.1.3 and 14.1.4), however, the procedure for the
single-phase model is basically the same (see Fig. 14.1.5).
For the power connections, refer to: Wiring diagrams for the connections of the elements at the headers.
n.
1
2
3
4
5
description
high level sensor electrodes
safety thermostat reset button
protective cover
boiler cover fastening lever
pipe union with ring nut and filter
Tab. 14.1.3
Fig. 14.1.3.
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n.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
description
fastening ring
safety thermostat bracket fastening screws
cylinder cover
PTC probe cable terminal cover
power connections protective cover
nut
depressed nut
double well for NTC and safety thermostat
flat gasket for elements
PTC probe cable terminals
O-ring (for double well)
O-ring for boiler
O-ring (for PTC probe)
electrical heating element
washer (for PTC probe)
bracket for safety thermostat
safety thermostat
PTC probe (element temperature control)
Tab. 14.1.4
Fig. 14.1.4
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n.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
description
fastening ring
cylinder cover
PTC probe cable terminal cover
power connections protective cover
nut
depressed nut
double well for NTC and safety thermostat
flat gasket for elements
PTC probe cable terminals
O-ring (for double well)
O-ring for boiler
O-ring (for PTC probe)
electrical heating element
washer (for PTC probe)
bracket for safety thermostat
safety thermostat
PTC probe tubing (element temperature control)
safety thermostat bracket fastening closing
Tab. 14.1.5
Fig. 14.1.5
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14.2 Maintenance of the other hydraulic components
IMPORTANT WARNINGS:
DO NOT USE DETERGENTS OR SOLVENTS TO CLEAN THE PLASTIC COMPONENTS.
TO REMOVE THE DEPOSITS USE A 20% ACETIC ACID SOLUTION, THEN RINSE THOROUGHLY WITH
WATER.
n.
1
2
3
4
5
6
7
8
9
description
O-ring stop ring for S/D manifold
S/D manifold (supply - drain)
fill electrovalve
drain electrovalve
tank supply tubing
cylinder supply tubing
overfill tubing
fill tank
bottom tank
Tab. 14.2.1
• Fill electrovalve (Fig. 14.2.1, part. no. 3)
After having disconnected the cables and the tubing,
remove the electrovalve and check the state of the inlet
filter, cleaning it if necessary using water and a soft
brush.
• Supply and drain manifold (Fig. 14.2.1,
part nos. 1 and 2)
Check that there are no solid residues at the cylinder
coupling; remove any impurities.
Check that the O-ring is not damaged or cracked;
replace it if necessary.
• Drain electrovalve (Fig. 14.2.1, part. no. 4)
Disconnect the power cables, remove the bobbin and
remove the valve block after having unscrewed the two
fastening screws from the manifold; remove any
impurities and rinse.
• Bottom tank (Fig. 14.2.1, part. no. 9)
Clean the tank for any deposits and check that water
flows freely from the tank to the tubing.
• Fill tank (Fig. 14.2.1, part. no. 8)
Check that there are no blockages or solid particles and
that the conductivity measuring electrodes are clean,
remove any impurities and rinse.
• Supply, load, overfill tubing
(Fig. 14.2.1, part nos. 5, 6 and 7)
Check that they are free and do not contain any
impurities; remove any impurities and rinse.
Fig. 14.2.1
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• Level control (Fig. 14.2.2)
The level control (see Fig. 14.1.1, part. no. 6) is contained in a transparent
cylindrical housing.
Disconnect the connector attached to the partition (see Fig. 14.1.1, part.
no. 2), remove the device from the spring bracket, remove the connection
tubing and the two covers.
Check that the O-rings are not damaged or cracked; replace them if
necessary.
Check the cleanliness and free sliding of the two float switches.
Clean all the components and reassemble and replace the device.
Carefully check that the connection tubes are properly positioned and
that they are not blocked or choked at any point.
n.
1
2
3
4
5
description
transparent polycarbonate cylinder
upper cover
O-ring (ORM 0300-20)
double float sensor
lower cover
Tab. 14.2.2
Fig. 14.2.2
IMPORTANT WARNING: after having replaced or checked the
hydraulic parts, check that the connections have been carried out correctly, with their corresponding seals. Re-start the
machine and run through a number of fill and drain cycles (from 2 to 4), at the end of which, applying the safety
procedure, check for any water leaks.
Replacing the components
Non-stick film
If requested as an option, the internal wall of the cylinder is lined with a non-stick film to avoid lime being deposited on the
internal walls of the cylinder. To clean or replace the film, remove the cylinder following the procedure described in
Maintenance of the cylinder-boiler and then:
• slowly remove the film towards the mouth of the cylinder, without forcing it to avoid damage;
• open the film after having released the click-on couplings;
• clean the film with water and a plastic spatula if necessary; replace the film if damaged;
• wind the film around itself, reinserting the click-on couplings, and place it into the cylinder after the latter has been
carefully cleaned and freed from deposits.
Elements
To replace the elements remove the cylinder following the procedure described in Maintenance of the cylinder-boiler and
loosen the fastening nuts from the threaded spigots of the elements.
Before reassembling the elements, check the state of the gaskets and replace them if necessary.
Safety thermostat
To replace the safety thermostat remove the cylinder following the procedure described in Maintenance of the cylinder-boiler
and then:
• disconnect the two fast-ons from the head of the thermostat;
• remove the bulb of the thermostat from the well which is not market with a coloured dot (Fig. 14.1.4, part. no. 8);
• remove the thermostat support bracket from the cylinder cover;
• replace the thermostat after having unscrewed the two fastening screws;
• replace the thermostat following the same operations in the reverse order.
PTC overtemperature sensor (optional in the version with type C control module, standard in the version
with type H or T control module)
The PTC sensors (one for each heating element) do not require regular maintenance; they should only be replaced if the safety
thermostat is activated due to operation without water: in fact, the intervention of just one PTC will cause the control module
to shut-down operation.
To replace the sensors, remove the cylinder following the procedure described in Maintenance of the cylinder-boiler and
then:
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• disconnect the PTC sensor terminals from the ST terminal block located on the cylinder cover (see Figs.: 7.9.1, ..., 7.14.1);
• remove the electrical elements corresponding to the sensors being replaced;
• unscrew the PTC sensor (Fig. 14.1.4, part. no. 18 or Fig. 14.1.5, part. no. 17) using a spanner on the hexagonal spigot,
accessible from the under side of the cover;
• reassemble a new PTC sensor, replacing the O-ring and screwing it tight; reconnect the terminals to the ST terminal block;
• reposition the electrical heating elements, making sure the PTC sensor enters into the corresponding sheath in the
aluminium casting.
NTC temperature sensor (version with type H or T control module only)
As for the PTC sensors, the NTC sensor controlling the water temperature does not require regular maintenance.
To replace this sensor, remove the cylinder following the procedure described in Maintenance of the cylinder-boiler and then:
• disconnect the terminals of the NTC sensor from the ST terminal block located on the cylinder cover (see Figs.: 7.9.1, ...,
7.14.1);
• remove the sensor from the well (marked with a coloured dot) housed in the measuring sheath (Fig. 14.1.4, part. no. 8 or
Fig. 14.1.5, part. no. 17);
• reposition and connect the new sensor in the place of the old one, making sure that it is completely inserted into the well.
Auxiliary circuit fuses
These measure 10.3 x 38mm and are housed in the fuse cartridge; to control the state of the fuses, check their continuity using
a tester.
Use the types of fuses indicated in Tab. 14.3.6.1.
UR002
fuses 1 and 2
models
UR004 UR006 - 1∼* UR006 - 3∼**
all fast-blow fuses with 1A capacity
UR010
UR020
UR030
Tab. 14.3.6.1
*: single-phase **: three-phase
Solid state relays (version with type H or T control module only)
The solid-state relays (one in the single-phase unit, two in the three-phase unit) can malfunction in one of two ways: by shortcircuit or burn-out. The respective consequences for the supply of power are: continuous conduction or permanent opening.
In the event of malfunctioning, check the conduction of the relay using a tester.
For the replacement of the solid-state relay:
• turn the humidifier off;
•
•
•
•
open the disconnection switch in the power line (safety procedure);
disconnect the power and auxiliary cables from the solid-state relay terminal block;
remove the relay from the electrical panel by using a screwdriver to lower the fastening lever to the omega guide;
replace the new relay on the omega guide and reconnect the wires as before.
Cooling fan and circuit breaker (version with type H or T control module only)
The solid-state relays are cooled by a fan placed above the relays, on
the right hand side of the appliance.
With insufficient ventilation the temperature of the electrical panel
may rise excessively until, reaching 65°C, power to the solid-state
relays is cut by a special klixon (heat sensor, used in this application
as circuit breaker - hereafter: circuit breaker), with manual reset
(indicated by S2 in the wiring diagram) and without an activation
signal.
In this case, check:
• if the circuit breaker placed on the air conveyance deflector fitted
above the solid-state relay intervenes on pressing the reset button
(see Fig. 14.3.8.1);
• that the fan power board, fitted in front of the deflector, is
powered (input terminals: 24Vac) and in turn powers the fan
(output terminals: 24Vdc).
Fan
S o lid s ta te relay (S SR )
(in th e m od e l, w h e re it is eq uip p ed )
Fig. 14.3.8.1
If the fan is malfunctioning:
• remove the deflector, after having unscrewed the two side nuts for fastening to the partition of the appliance;
• replace the fan after having unscrewed the nuts for fastening to the side frame upright;
• reassemble the deflector correctly, as its positioning can influence the effectiveness of the cooling.
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The circuit breaker can be replaced, in the event of malfunction, by removing it from the spring fastening it to the deflector.
14.3 Spare parts
model
hydraulic parts
humidifier gasket kit
cylinder cover kit
cylinder cover fast. bracket
cylinder filter kit
230V Teflon heating element
230V non-Teflon heating
element
cylinder fastening strap
steel cylinder
fill tank
drain electrovalve kit
fill electrovalve
bottom tank
internal tubing kit
control level with sensor
cylinder fastening bracket
non-stick film
external insulation
electrical parts
contactor
power transformer
fuse holder
fan
safety thermostat kit
double well for pre-heating
probe + safety thermostat
electronic parts
version C control module
version H control module
version T control module
main control board
flat connection cable
fan circuit breaker
fan control board
solid state relays
PTC probe
NTC probe
UR002
UR004
UR006 - 1∼
*
**
UR006 - 3∼
UR010
UR020
UR030
URKG00000M URKG00000M URKG00000M URKG00000M URKG00000M
URKCOPC00S URKCOPC00S URKCOPC00M URKCOPC00M URKCOPC00M
14C453A020
14C453A020
14C453A020
14C453A020
14C453A020
UEKF000000
UEKF000000
UEKF000000
UEKF000000
UEKF000000
98C453P048
98C453P049
98C453P020
98C453P020
98C453P022
98C453P066
98C453P067
98C453P056
98C453P056
98C453P057
14C453A006
14C453A089
18C453A008
98C453P050
1312085AXX
18C453A010
URKT00000S
URKSLT0000
14C453A006
13C453A085
16C453A054
14C453A006
14C453A089
18C453A008
98C453P050
1312085AXX
18C453A010
URKT00000S
URKSLT0000
14C453A006
13C453A085
16C453A054
14C453A006
14C453A006
14C453A006
14C453A014
14C453A014
14C453A014
18C453A008
18C453A008
18C453A008
98C453P050
98C453P050
98C453P050
1312086AXX 1312086AXX 1312086AXX
18C453A010
18C453A010
18C453A010
URKT00000M URKT00000M URKT00000M
URKSLT0000 URKSLT0000 URKSLT0000
14C453A006
14C453A006
14C453A006
13C453A035
13C453A035
13C453A035
16C453A024
16C453A024
16C453A024
0203000AXX
09C453A033
0606192AXX
1312540AXX
URKTS00000
14C453A077
0203000AXX
09C453A033
0606192AXX
1312540AXX
URKTS00000
14C453A077
0203000AXX
09C453A033
0606192AXX
1312540AXX
URKTS00000
14C453A042
0203000AXX
09C453A033
0606192AXX
1312540AXX
URKTS00000
14C453A042
0203000AXX
09C453A033
0606192AXX
1312540AXX
URKTS00000
14C453A042
URCC000000 URCC000000 URCC000000 URCC000000 URCC000000
URCH000000 URCH000000 URCH000000 URCH000000 URCH000000
URCT000000 URCT000000 URCT000000 URCT000000 URCT000000
URI0000000
URI0000000
URI0000000
URI0000000
URI0000000
59C460A003
59C460A003
59C460A003
59C460A003
59C460A003
6132702AXX 6132702AXX 6132702AXX 6132702AXX 6132702AXX
98C453CP04
98C453CP04
98C453CP04
98C453CP04
98C453CP04
0101002AXX 0101002AXX 0101003AXX 0101002AXX 0101002AXX
61C453A031
61C453A031
61C453A031
61C453A031
61C453A031
NTC008WPAO NTC008WPAO NTC008WPAO NTC008WPAO NTC008WPAO
Tab. 14.4.1
*: single-phase; **: three-phase
14.4 Disposal of the parts of the humidifier
The humidifier is made up of metallic and plastic parts, refer to Figs.: 2.1 and 14.2.1. All these parts must be disposed of
according to the local standards regarding product waste disposal.
Carel code +030221761
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heaterSteam
15. ALARMS AND TROUBLESHOOTING
15.1 Alarm summary table
When an alarm is activated a message identifying the alarm is displayed on the control module.
In the case of potentially dangerous alarms, the control module automatically shuts the humidifier down.
For some alarm events (see Table 15.1.1), the signalling of the alarm is accompanied by the activation of an alarm relay, as
described in: Other auxiliary contacts.
If the cause of the alarm is no longer valid, the humidifier and alarm relay output can be reset automatically or manually,
according to the type of problem, while the message displayed is deactivated manually by pressing the reset-PRG button.
If no longer active, the alarm status continues to be indicated until the reset-PRG button is pressed.
Still active alarms can not be reset.
9
5
5
Fig. 15.1.2
Fig. 15.1.1
9
In the type C control module the presence of an alarm is indicated by the illumination of LED 9 and a combination of the
LEDs 5 (Fig. 15.1.1); in the event of more than one alarm, these are indicated in sequence, at 2 second intervals.
In the type H or T control module, if not in programming phase, in the presence of an alarm LED 9 (see Fig. 15.1.2) begins
flashing, while the display 5 indicates the alphanumeric alarm code.
The message is displayed cyclically, for a duration of two seconds, alternating with the measurement normally displayed (if the
measurement normally displayed corresponds to a disconnected probe, the measurement is not displayed; this will
automatically return to the display if the probe is reconnected).
In the event of more than one alarm, the display indicates all the corresponding codes in sequence, at two second intervals.
The alarm Ec cannot be reset.
In the event of the alarm CL (regular maintenance required), the alarm can be reset only by resetting the hour counter; see
Resetting the hour counter.
The alarm E1 may appear in two distinct cases:
1. Malfunction when reading from the parameter memory (typically on start-up)
The default parameters are temporarily recalled, without being saved in the parameter memory (the parameters can be
accessed and the correct values restored).
In any case the default parameter recall procedure is recommended; see Recalling the default parameters.
2. Malfunction when writing to the parameter memory (typically on pressing the PRG button)
Any modifications made will be cancelled; the parameters can be accessed, the values modified and save operation
repeated.
Table 15.1.1 lists the alarm indications, the causes, the conditions and the possible solutions.
The remote terminal column indicates the alarm message which appears on the LCD display of the Carel Humivisor remote
control panel, if one is connected to the humidifier.
Carel code +030221761
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heaterSteam
H and T
control
code displayed
C
control
Carel
Humivisor
remote term.
E201
E203
Not featured
cause
activation of safety
thermostat
the PTC probes of the
heating plates have
measured an
overtemperature
E204
low water level in the
cylinder
E205
high conductivity of the
supply water
E211
solution
(once having effected the suggestion,
if the problem persists, contact the Carel service department)
action
reset
total shut- not avail.
problem dependent mainly on operation without water;
turn the machine off and, once it has cooled down, reactivate the thermostat on the cylinder cover down
after having cleaned the cylinder and the level control, checking the efficiency of the components;
check that the electrical and hydraulic connections are in order and that the machine is supplied
correctly;
it may be necessary to replace the PTC sensors (if installed)
total shut- not avail.
turn the machine off and clean the cylinder and the heating plates
alarm
relay
active
active
down
check the correct supply of water to the cylinder;
turn the machine off and clean: the cylinder, the level control and the fill electrovalve
total shut- not avail.
down
total shutauto
turn the machine off and clean the water conductivity measuring electrodes;
down
if the problem persists, change the source of the supply water or install a suitable treatment system
(demineralisation, even partial);
the problem will not be resolved by softening the supply water
humidifier manual
autotest failed; probable ensure that the machine is supplied with water;
disabled
problems in: supply water, turn the machine off and clean the level control and the fill valve
active
active
active
level control or electrovalve
E213
electrical power not
with the machine off and disconnected from mains power supply, check that there are no defective humidifier manual
available; on machine start- of malfunctioning electrical connections
disabled
up no steam is produced or
the water is not pre-heated
lack of water
E214
E215
formation of foam in the
cylinder during boiling.
check that the supply tubing from the water supply to the humidifier and the internal tubing is not
blocked or choked and that the pressure is sufficient (1÷8 bar);
check the operation of the fill electrovalve;
check that the steam supply does not have to work against excessive back-pressure, preventing the
flow of water into the cylinder due to gravity;
check that the steam supply tubing is not choked or that there are no pockets of condensation
the formation of foam is usually due to the presence of surfactants in the water (lubricants,
solvents, detergents, water treatment or softening agents) or an excessive concentration of dissolved
salts. Drain the water supply line;
clean the cylinder
active
humidifier manual
disabled
active
humidifier manual
disabled
active
Tab. 15.1.1
continua
Carel code +030221761
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heaterSteam
cont.
H and T
control
code displayed
C
control
not featured
Carel
Humivisor
remote term.
E231
cause
solution
(once having effected the suggestion,
if the problem persists, contact the Carel service department)
high water conductivity check the conductivity of the supply water;
pre-alarm
if necessary, install a suitable water treatment system;
action
reset
alarm
relay
humidifier
disabled
auto
not active
the problem will not be resolved by softening the supply water
not featured
E221
not featured
E222
not featured
E224
high ambient humidity
(high temperature in T
control)
low ambient humidity
(low temperature in T
control)
high supply humidity
check the operation of the probe and the limit set by parameter P2
signal
only
auto
active
check the operation of the probe and the limit set by parameter P3
signal
only
auto
active
check the operation of the supply probe
signal
only
auto
active
internal memory error
contact the Carel service department
humidifier
disabled
Carel
reprogram
active
with the machine off check that there are no defective or malfunctioning electrical connections
humidifier
redisabled program
params.
active
E201
user parameter error
not featured
E212
not featured
E230
not featured
E220
ambient probe not
connected
not featured
E223
supply probe not
connected (if featured)
not featured
E225
hour counter error
not featured
E232
hour
reset
counter manual
saving
hour
disabled counter
check the connection of the probe and the setting of parameter A0 for ON/OFF configuration (see humidifier auto
disabled
Reading and programming the parameters)
reset the hour counter (see Resetting the hour counter)
check the connection of the probe or the setting of parameter A0 (see Reading and programming humidifier
disabled
the parameters)
NTC probe for measuring check the pre-heating operation and the setting of parameters b1, b2, b3 (see Reading and
prethe water temperature not programming the parameters);
heating
connected (if featured)
disabled
regular maintenance
signal
check the connections to the terminal block on the cylinder cover
stop the machine and carry out a complete maintenance routine on the humidifier, resetting the hour
counter (see Resetting the hour counter)
signal
only
not active
active
auto
active
auto
active
manual
not active
Tab. 15.1.1
Carel code +030221761
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heaterSteam
15.2 Troubleshooting
problem
The control does not turn
on.
cause
1. no electrical power supply;
2. external switch in position 0 (open);
3. control connectors poorly installed;
4. fuses blown;
5. transformer malfunction;
solution
1. check the protection devices before the humidifier
and the presence of the mains power supply ;
2. close the switch: position I;
3. check that the connector are properly installed on
the terminal block;
4. check the state of fuses F1/F2;
5. check that the secondary of the transformer has an
output of 24Vac
The humidifier does not
enter into operation
1. remote ON/OFF contact open (relay/terminals 7I - 8I);
2. the external regulator/humidistat or probe has
not been connected correctly;
3. probe/humidistat malfunction;
4. parameters not set correctly;
5. safety thermostat activated;
6. fan circuit breaker activated (control H or T);
1. close ON/OFF contacts (relay/terminals 7I - 8I);
2. check the external connection;
3. check the external signal;
4. reprogram the parameters correctly;
5. reset the thermostat after having eliminated the
cause of the problem;
6. reset the circuit breaker after having eliminated the
cause of the problem;
The humidifier fills with
water without producing
steam
1. steam supply back-pressure too high;
2. loss of flow regulator in the water fill
electrovalve (with leaks in the hydraulic
circuit);
3. level control malfunction;
4. cylinder inlet filter blocked;
5. lime in the fill tank;
6. drain electrovalve malfunction;
1. check that the steam supply tubing is not bent or
choked;
2. replace the fill electrovalve;
3. clean or replace, if necessary, the level control;
4. clean the filter;
5. clean the fill tank;
6. check for the presence of 24Vac at the drain
electrovalve; clean drain electrovalve;
Line circuit breaker is
activated
1. the line circuit breaker is rated too low;
2. elements short-circuited
1. check that the circuit breaker is rated for a current
of at least 1.5 times the rated current of the
humidifier;
2. check, by measuring, the value of the elements and
replace them if necessary
The humidifier wets the
duct
1. the distributor is not installed correctly;
2. the system is rated too high;
3. the humidifier is active when the duct fan is
off;
1. check that the steam distributor has been installed
correctly;
2. diminish the steam production set on the control;
3. check the connection of the device (flow switch or
differential pressure switch) linked to the
humidifier for ventilation in the duct (terminals 7I 8I)
The humidifier wets the
floor below
1. the humidifier tubing is blocked;
2. the hydraulic supply or overfill circuit has
leaks;
3. the drain condensation tubing does not drain
the water back to the fill tank;
4. the steam supply tubing is not properly attached
to the cylinder;
1. clean the tubing in the bottom tank;
2. check the entire hydraulic circuit;
3. check the correct positioning of the condensation
drain tubing in the fill tank;
4. check the fastening of the pipe clamp on the steam
supply tubing;
Tab. 15.2.1
Carel code +030221761
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heaterSteam
16. HUMIDIFIER TECHNICAL SPECIFICATIONS
model
number of heating elements
UR002
UR004
UR006
UR010
1
1
3
3
steam
connection (φ mm)
supply pressure limits (Pa)
supply water
connection
temperature limits (°C)
pressure limits (bar)
hardness limits (°fH)
instantaneous flow rate (l/min)
drain water
connection (φ mm)
typical temperature (°C)
instantaneous flow rate (l/min)
power to active probes (general characteristics)
alarm relay and dehumidification outputs (general
characteristics)
remote enabling input (general characteristics)
serial communication
UR030
G¾"M
G¾"M
30
0 ÷ 1500
G¾"M
G¾"M
0.6
0.6
G¾"M
G¾"M
1 ÷ 40
1÷8
≤ 40
1.2
1.2
40
≤100
5
environmental conditions
ambient operating temperature (°C)
ambient operating humidity (% rH)
storage temperature (°C)
storage humidity (% rH)
index of protection
control
type
voltage / auxiliary frequency (V / Hz)
maximum auxiliary power (VA)
probe inputs (general characteristics)
UR020
5
5
5
1 ÷ 40
10 ÷ 60
-10 ÷ 70
5 ÷ 95
IP20
URCC-URCH-URCT
24 / 50÷60
30
selectable input signal: 0-1Vdc, 0-10Vdc, 2-10Vdc.0-20mA, 4-20mA
input impedance: 60 kΩ with signals: 0-1Vdc, 0-10Vdc, 2-10Vdc
50 Ω with signals: 0-20mA, 4-20mA
24Vdc (24Vac rectified), Imax=250mA
12Vdc 5%, Imax=50mA
250V 8 A (2 A)
type of micro-switching action 1C
free contact ; max. resistance 50 Ω; Vmax=24Vdc; Imax=5 but
two-lead RS-485
Tab. 16.1 - cont.
Carel code +030221761
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heaterSteam
continued
model
power
rated power supply voltage: 200V - 1∼N
instantaneous steam production (1) (kg/h)
power consumption a rated voltage (kW)
rated power supply voltage : 208V - 1∼N
instantaneous steam production (1) (kg/h)
power consumption a rated voltage (kW)
rated power supply voltage : 230V - 1∼N
instantaneous steam production (1) (kg/h)
power consumption a rated voltage (kW)
rated power supply voltage : 200V - 3∼
instantaneous steam production (1) (kg/h)
power consumption a rated voltage (kW)
rated power supply voltage : 208V - 3∼
instantaneous steam production (1) (kg/h)
power consumption a rated voltage (kW)
rated power supply voltage : 230V - 3∼
instantaneous steam production (1) (kg/h)
power consumption a rated voltage (kW)
rated power supply voltage : 380V - 3∼
instantaneous steam production (1) (kg/h)
power consumption a rated voltage (kW)
rated power supply voltage : 400V - 3∼
instantaneous steam production (1) (kg/h)
power consumption a rated voltage (kW)
rated power supply voltage : 440V - 3∼
instantaneous steam production (1) (kg/h)
power consumption a rated voltage (kW)
rated power supply voltage : 460V - 3∼
instantaneous steam production (1) (kg/h)
power consumption a rated voltage (kW)
UR002
UR004
UR006
UR010
code C
1.8
1.3
code C
2
1.5
code D
2.4
1.8
code C
3
2.3
code C
3.2
2.5
code D
4
3
code C
6
4.5
code C
6.1
4.6
code D
6
4.5
code J
6.0
4.5
code W
6.2
4.6
code K
6.0
4.5
code L
5.5
4.1
code L
6.0
4.5
code M
5.5
4.1
code M
6.0
4.5
code J
10.0
7.5
code W
10.0
7.5
code K
10.0
7.5
code L
9.0
6.8
code L
10.0
7.5
code M
9.1
6.9
code M
10.0
7.5
UR020
UR030
Tab. 16.1
(1) the average steam production is affected by factors such as: ambient temperature, water quality, steam distribution system
model
VENTILATED STEAM DISTRIBUTOR models
rated power (W)
air flow rate (m3/h)
noise level (open range, at maximum speed at a
distance of one metre from the front) (dBA)
operating temperature / humidity (°C / % rH)
UR002
UR004
UR006
UR010
VSDURA
34
175
46
VSDURA
34
175
46
VSDURA
34
175
46
VSDURA
34
175
46
-10÷40 /
10÷60
-10÷40 /
10÷60
-10÷40 /
10÷60
-10÷40 /
10÷60
UR020
UR030
Tab. 16.2
16.1 Guarantee on materials
The parts making up the humidifier are covered by a 2 year guarantee from the date of production, printed on the adhesive
label listing the product identification data. The guarantee does not cover the consumable parts (e.g.. the cylinders). The
guarantee is void if the cause of the malfunction is clearly due to tampering or careless or improper use of the instrument by
the customer, or if the identification label is missing.
Carel reserves the right to modify or change its products without prior warning.
Carel code +030221761
55
preliminary version - rel. 2.0 - 03/09/99
Technology & Evolution
CAREL srl
Via dell’Industria, 11 - 35020 Brugine - Padova (Italy)
Tel. (+39) 049.9716611 Fax (+39) 049.9716600
http://www.carel.com – e-mail: carel@carel.com
Cod. +030221761 - Rel. 2.0 - 03/09/99
Agency: