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ZEPHYR | Stand-alone immersed electrode humidifiers
For further information, consult the operating and maintenance manual downloadable from
the website www.eslteam.it or scan the QR CODE.
SCAN THE QR CODE AND
READ THE USER MANUAL!
ELECTRICAL WIRING
DANGER
RISK OF ELECTRIC SHOCK, EXPLOSION OR ELECTRIC ARC
• Various product components, including the printed circuits, run at hazardous voltage levels.
• Only use electrically insulated and suitably calibrated measuring devices and equipment.
• Do not open, disassemble, repair or modify the product.
• Before handling the product, make sure you are wearing all the necessary personal protective
equipment (PPE).
• Do not expose the equipment to liquids or chemicals.
• Use this device and all parts connected to it at the specified voltage only.
• Do not use this equipment for critical safety functions.
FAILURE TO FOLLOW THESE INSTRUCTIONS WILL RESULT IN DEATH OR
SERIOUS INJURY.
DANGER
RISK OF ELECTRIC SHOCK, EXPLOSION OR FIRE
• Install the humidifier away from electronic equipment.
• Do not install the humidifier above electronic equipment.
FAILURE TO FOLLOW THESE INSTRUCTIONS WILL RESULT IN DEATH OR
SERIOUS INJURY.
DANGER
RISK OF ELECTRIC SHOCK ANDA FIRE
• Do not use the device with loads greater than those indicated in the technical data section.
• Do not exceed the temperature and humidity ranges indicated in the technical data section.
• Provide safety interlocks (isolators) of a suitable size between the power supply and the humidifier.
• Only use cables with a suitable cross-section as indicated in the "Wiring best practices" section of the
user and maintenance manual..
FAILURE TO FOLLOW THESE INSTRUCTIONS WILL RESULT IN DEATH OR
SERIOUS INJURY.
WARNING
MALFUNCTIONING OF THE EQUIPMENT
• Perform the wiring carefully, in compliance with electromagnetic compatibility and safety
requirements.
• Do not operate the product with unknown or incorrect settings or data.
• Make sure the wiring is correct for the final application.
• Use shielded cables for all I/O signal and communication cables.
• Minimise the length of the connections as much as possible and avoid winding the cables
around electrically connected parts.
• The signal cables (analogue and digital inputs, communication and corresponding power
supplies), power cables and power supply cables for the device must be routed separately.
• Before applying the power supply, check all the wiring connections.
• Do not connect wires to unused terminals and/or to terminals labelled "No connection "(N.C.)".
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN DEATH, SERIOUS
INJURY, OR EQUIPMENT DAMAGE
.
WARNING
BIOLOGICAL RISK
• In the event of inadequate use and/or poor maintenance it is possible that microorganisms
(including the bacterium that causes Legionellosis) may proliferate and be transferred into
the air treatment system.
• The humidifier must be used properly and be maintained and cleaned properly at
prescribed intervals, as described in chapter MAINTENANCE in the manual of operating
and maintenance.
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN DEATH, SERIOUS
INJURY, OR EQUIPMENT DAMAGE
.
DIMENSIONS
mm (in.)
mm (in.)
Single boiler small model
CABLE GLANDS AND CABLE ROUTING
5
Ref. Description
3
1
2
3
4
5
4
2
1
DESCRIPTION
STEAM PRODUCTION
Production capacity
Maximum pressure
Connection outside diameter
ELECTRICAL PROPERTIES
Power absorbed
Power supply
Phases
Rated absorption per phase
Assorbimento nominale per fase
WATER PROPERTIES
Supply water electrical conductivity
Supply water hardness
Supply water pressure
Supply water connection
Water drain outer dimensions
1
3
0/1
CV
20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
Out1
Single boiler large model
1
2
Power supply
Pull-resistant cable gland for power
P/n EHKT
cable entry
Pull-resistant cable glands for
EHKT003M2
control signal/serial cable entry
EHKT003T2
Cable gland for power cables from
EHKT003T4
contactor to boiler
EHKT005M2
Cable gland for outlet pump power
EHKT005T2
supply cables
EHKT005T4
Cable gland for outlet solenoid valve
EHKT010T2
power supply cables and maximum
EHKT010T4
level sensor cable
EHKT015T4
EHKT015T2
EHKT020T2
EHKT020T4
EHKT030T4
EHKT040T4
03M2
05M2
03T2
05T2
3 Kg/h
5 Kg/h
3 Kg/h
5 Kg/h
2,2 kW
3,75 kW
2,2 kW
3,75 kW
230 Vac
Single-phase
9,6 A
16,3 A
5,5 A
9,4 A
MOUNTING
2
4
Intrabus
S2
S3
S0
S1
S0
S1
S2
S3
HMI
DP2
Out2
Out3
Out4
Out5
3
4
5
6
7
8
9
Out4
Out5
SUITABLE WIRING FOR THE POWER SUPPLY
Permissible wiring
P/n EHKX
Wiring size
type
EHKX003M2
2G4
EHKX003T2
3G2,5
EHKX003T4
3G2,5
EHKX005M2
2G10
EHKX005T2
3G4
EHKX005T4
3G2,5
EHKX010T2
3G4
EHKX010T4
3G10
EHKX015T4
3G16
EHKX015T2
3G6
EHKX020T2
3G10
EHKX020T4
3G16
EHKX030T4
3G16
EHKX040T4
3G16
TECHNICAL SPECIFICATIONS
EHKX••••• / EHKT•••••
03T4
05T4
10T2
10T4
15T2
3 Kg/h
5 Kg/h
10 Kg/h
15 Kg/h
1650 Pa (165 mmH
O)
2
38 mm (1.50 in.)
2,2 kW
3,75 kW
7,5 kW
11,3 kW
400 Vac
230 Vac
400 Vac
230 Vac
50/60 Hz
Three-phase
3,2 A
5,4 A
18,8 A
10,8 A
28,4 A
70...1250 μS*cm (Standard boiler 300...700 μS*cm)
5...50 °f (Standard boiler 10...30 °f)
0,02...1 MPa (0,2...10 bar)
1x M 3/4" GAS
1x 40 mm (1.57 in.)
Minimum 45°
WIRING DIAGRAM
RS-485
CANBUS
SCI1
CT1
BMS
CANBUS
CT1
SCI1
49 50
DP1
ONLY
ONLY
EHKX
EHKX
USB
Out6
LS1
10 11 12
13
14
Out6
LS1
POWER-UP AND START-UP
1. Check the inlet and outlet lines;
Pitch
[mm(in.)]
2. Let the water drain for a few hours before making the final connection;
3. Fit the power fuses;
4. Connect the humidistat or sensor, depending on the required operation;
5. Check that the CV contact is closed;
6. Activate the isolator installed outside the humidifier and open the water supply source;
17,8 (0,70)
7. Set the electrical conductivity of the incoming water;
8. Press the ON/OFF button on the user interface to start the humidifier;
9. Set the humidity setpoint SP to 100%;
10. The humidifier will start a boiler filling cycle to fill it to the minimum water level that
guarantees rapid steam production;
11. Set the humidity setpoint SP to the value required for the application;
26,5 (1.04)
17,8 (0,70)
26,5 (1.04)
Disposal
The device must be disposed of in accordance with local regulations regarding the
collection of electrical and electronic appliances.
15T4
20T2
20T4
30T4
40T4
20 Kg/h
30 Kg/h
40 Kg/h
2000 Pa (200 mmH
O)
2
11,3 kW
15 kW
15 kW
22,5 kW
30 kW
400 Vac
230 Vac
400 Vac
16,3 A
37,7 A
21,7 A
32,5 A
43,3 A
PLUMBING INSTALLATION
Steam Hose
Ø38 mm (1.50 in.)
Water fill M3/4" G
Unità OFF
DA TASTIERA
≥ 40 mm (1.57 in.)
TERMINALS
1-2
24 Vac power supply
1-3
Digital output: water outlet solenoid valve
1-4
Digital output: water outlet pump
1-5
Digital output: contactor (steam generation)
6-7
Digital output: humidification enable
8-9
Digital output: ventilated distributor control
10...12 Digital output: alarm
Hazardous voltage digital input: level sensor
13-14
LS1
20-21 Digital input: fan enable (CV)
22-23 Digital input: remote ON/OFF (0/1)
24-25 Digital input: humidistat (CFG = 0) (S0)
S1 analogue input: temperature (anti-freezing
26-27
and hold)
28...30 S2 analogue input: humidity sensor
31...33 S3 analogue input: humidity limit sensor
34...36 Serial line connection: HMI Intrabus
Serial line connection: RS-485 modbus for
38...40
BMS slave (EHKX only)
41...44 Serial line connection: CANBUS (EHKX only)
Analogue connection: external current sensor
45-46
CT1 (TA)
47...50 Connection to expansion board SCI1
51-52 Reserved
Activate termination resistor on SCI1 RS-485
serial line.
DP1
1 = SCI1 RS-485 serial termination
2 = Reserved
Termination resistor on BMS / CANBUS
RS-485.
DP2
1 = BMS RS-485 serial termination
2 = CANBUS serial termination
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