Pego EASYSTEAM ES100 User manual

Rel. 19
Use and maintenance manual
READ AND KEEP
REV. 03-21
ENG
IMMERSED ELECTRODES
HUMIDIFIERS
EASYSTEAM ES100

Page 2 Rev. 03-21
USER MANUAL
Thank you for choosing a PEGO EASYSTEAM immersed electrodes humidifier.
The complete reading of this manual will allow you to perform a correct installation and a better use
of the machine. It is therefore advisable to keep this manual in a place adjacent to the humidifier for
any maintenance operations or to modify its operation.
How to read the manual.
To facilitate reading, graphic indications have been inserted with the following meanings:
Indicates a note that require careful reading.
Indicates the operations to be scrupulously performed to avoid damage to the humidifier,
injury to persons or malfunctions.
Indicates the operations not to be performed to avoid damage to the humidifier, injury to
persons or malfunctions.
Indicates a suggestion.
Indicates to contact the PEGO after-sales service center indicated on the back of this
manual.
Instructions for disposal:
The humidifier is made up of metal parts and plastic parts. In reference to European Union directive
2012/19/EC issued on 4 July 2012 and the related national legislation, please note that:
A. WEEE cannot be disposed of as municipal waste and such waste must be collected and
disposed of separately.
B. The public or private waste collection systems defined by local legislation must be used. In
addition, the equipment can be returned to the distributor at the end of its working life when
buying new equipment.
C. The equipment may contain hazardous substances: the improper use or incorrect disposal of
such may have negative effects on human health and on the environment.
D. The symbol (crossed-out wheeled bin) shown on the product and on the user manual
indicates that the equipment has been introduced onto the market after 13 August 2005 and
that it must be disposed of separately.
E. In the event of illegal disposal of electrical and electronic waste, the penalties are specified
by local waste disposal legislation.

Rev. 03-21 Page 3
USER MANUAL
INTRODUCTION
Page 5 1.1 Generality
Page 6 1.2 Warranty conditions
Page 7 1.3 Functioning principle
Page 9 1.4 ES100 Series humidifiers identification codes
Page 9 1.5 ES100 Series humidifiers technical data
Page 10 1.6 Overall dimensions
Page 11 1.7 Identification data
Page 11 1.8 Standard equipment
INSTALLATION
Page 12 2.1 Main installation warnings
Page 14 2.2 Installing the ES100 series humidifier
Page 18 2.3 ES100 series humidifiers safety devices and power supply electric connections
Page 18 2.4 ES100 series sensors and control signals connections
Page 24 2.5 Digital inputs on HUM2 board
Page 24 2.6 Digital outputs on HUM2 board
Page 25 2.7 TA Inputs for measuring current absorption
Page 25 2.8 Net configuration with Modbus-RTU protocol
Page 25 2.9 Board power supply
Page 25 2.10 NANO EasySTEAM Display for Master HUM2 board
Page 26 2.11 ES100 series electrical layouts
PROGRAMMING
Page 28 3.1 NANO EasySTEAM Controller description
Page 29 3.2 Combination of keys
Page 30 3.3 Status LED on Master HUM2 electronics
Page 31 3.4 1st Level programming
Page 32 3.5 2nd Level programming
MASTER/SLAVE CONFIGURATION
Page 37 4.1 Individual humidifier configuration
Page 37 4.2 Master/Slave humidifiers configuration
IGNITING THE HUMIDIFIER
Page 40 5.1 First ignition
Page 40 5.2 Steam production
Page 40 5.3 Smart production for low conductivity
DIAGNOSTICS
Page 41 Diagnostics
TABLE OF CONTENTS
CHAP. 1
CHAP. 2
CHAP. 3
CHAP. 6
CHAP. 4
CHAP. 5

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USER MANUAL
MAINTENANCE
Page 44 7.1 Maintenance
Page 44 7.2 General and safety Standards
Page 44 7.3 Maintenance intervals
Page 46 7.4 Replacement of the cylinder
Page 49 7.5 Cleaning the cylinder
STEAM DISTRIBUTION
Page 50 8.1 Generality
Page 50 8.2 Example of distribution in air duct
Page 50 8.3 Example of distribution in ambient
Page 51 8.4 Choosing a steam distributor
ATTACHMENTS
Page 52 9.1 EU Declaration of Conformity
Page 53 9.2 ES Series spare parts
CHAP. 7
CHAP. 8
CHAP. 9

Rev. 03-21 Page 5
USER MANUAL
GENERALITY
The family of Pego EASYSTEAM immersed electrode humidifiers can be considered as the most
complete by type of use and ease of maintenance.
The line includes humidifiers with 3kg/h, 6kg/h, 8kg/h production capacity with single-phase
electric power supply, and 6kg/h, 12kg/h, 24kg/h, 48kg/h, 96kg/h (ES100) production capacity with
three-phase + neutral electric power supply; all able to work in ON/OFF mode, proportional mode
with integrated humidistat and 4-20mA or 0-10V probe, proportional mode with 0-10V external
signal, in ON/OFF mode from integrated thermostat and proportional mode from integrated
thermostat.
The EASYSTEAM humidifiers are provided with a microprocessor software enabling the widest
programming for a fully customised use and a completely automatic functioning.
In fact, it is possible to set the maximum capacity of steam production, values of production
capacity intermediate in percentage, the frequency of deconcentration discharges, the discharge of
water for inactivity.
The EASYSTEAM line is also provided with a display for real time viewing of the humidity in the
premises to be treated; the current absorbed by the electrodes, the hours of work, various alarms,
water charging and discharging as well as all easily settable programming parameters.
An acoustic alarm (buzzer) is present in the EASYSTEAM humidifiers that warns the user of any
anomalies; the internal software is able to evaluate the seriousness of the anomaly, blocking the
machine or continuing the steam supply.
The strength of the EASYSTEAM line is the simplicity with which the cylinder is replaced when
normal wear makes it necessary.
CHAP. 1 INTRODUCTION
1.1

Page 6 Rev. 03-21
USER MANUAL
WARRANTY CONDITIONS
The EASYSTEAM series humidifiers are covered by a 24-months warranty against all
manufacturing defects as from the date indicated on the product ID code.
In case of defect the product must be appropriately packaged and sent to our production plant or to
any authorized Service Center with the prior request of the Return Authorization Number.
Customers are entitled to have defective products repaired, spare parts and labour included. The
costs and the risks of transport are at the total charge of the Customer.
Any warranty action does not extend or renew its expiration.
The Warranty does not cover:
•Damages resulting from tampering, impact or improper installation of the humidifier and its
accessories.
•Installation, use or maintenance that does not comply with the instructions provided with the
humidifier.
•Repair work carried out by unauthorized personnel.
•Consumables (sunk-electrode cylinders).
•Damages due to natural phenomena such as lightning, natural disasters, etc.
In all these cases the costs for repair will be charged to the customer.
The intervention service in warranty can be refused when the equipment is modified or transformed.
Under no circumstances Pego S.r.l. will be liable for any loss of data and information, costs of
goods or substitute services, damage to property, people or animals, loss of sales or earnings,
business interruption, any direct, indirect, incidental, consequential, damaging, punitive, special or
consequential damages, in any way whatsoever caused, whether they are contractual, extra
contractual or due to negligence or other liability arising from the use of the product or its
installation.
Malfunction caused by tampering, bumps, inadequate installation automatically declines the
warranty. It is compulsory to observe all the instructions in this manual and the operating conditions
of the product.
Pego S.r.l. disclaims any liability for possible inaccuracies contained in this manual if due to errors
in printing or transcription.
Pego S.r.l. reserves the right to make changes to its products which it deems necessary or useful
without affecting its essential characteristics.
Each new release of the Pego product user manual replaces all the previous ones.
As far as not expressly indicated, is applicable the Law and in particular the art. 1512 C.C. (Italian
Civil Code).
For any controversy is elected and recognized by the parties the jurisdiction of the Court of Rovigo.
1.2

Rev. 03-21 Page 7
USER MANUAL
FUNCTIONING PRINCIPLE
The immersed electrode humidifiers of the series EASYSTEAM, exploit the conductivity of water
for food use for the production of steam by boiling.
In the cylinder, an electric current is triggered between the immersed electrodes; this overheats the
water until it is brought to the boiling temperature.
The current intensity, expressed in amperes, varies according to the quantity of water present in the
cylinder and in contact with the surface of the electrodes and its conductivity.
The electronics present in the humidifier is able, thanks to an amperometric transformer, to measure
this intensity of current and therefore, by controlling the load solenoid valve to raise the water level
in the cylinder or the drain pump to lower it, it succeeds to control this phenomenon in an
absolutely automatic way.
Furthermore, thanks to a microprocessor technology and to a humidity sensor, proportional
operation can be set, optimizing the consumption of water and electricity according to the humidity
requirements of the environment to be treated.
In addition to ensuring functioning during steam output, the discharge pump also guarantees the
complete cylinder draining when the unit has been inactive for a set time: this prevents the
formation and the deposit of limescale or other particles created during the boiling process.
The EASYSTEAM series humidifiers are fully automatic and require only replacement of the
cylinder when the electrodes are worn.
The layout below illustrates the functioning principle.
1.3

Page 8 Rev. 03-21
USER MANUAL
The supplied steam is managed proportionally to steam production request that the electronic
control calculates depending on the
chosen functioning among the eight
available, described in chap. 2.4. The
minimum steam supply is set at 20%
of the rated maximum current
(independently of Pr) and is managed
with an activation hysteresis; the
maximum supply, which occurs at
a maximum production request,
corresponds to the percentage set in
the first level variable (Pr). If for
example on an ES100 that produces
96kg/h of steam, the variable Pr is set
to 100% the maximum production
will be 96kg/h; but if the variable Pr is
reduced to 50%, the maximum
production will be 48kg/h.
For correct operation, the humidifier must be supplied with drinking water coming from the
aqueduct; this is because it is free from any element harmful to health and is compatible with
the range of conductivity useful for optimal operation of the humidifier. However, in some
geographical areas mains water may be unsuitable for optimal functioning due to very low
conductivity or high hardness or because it’s too aggressive; the below is a summary table of the
parameters required for correct humidifier functioning.
POTABLE WATER FUNCTIONING RANGE
LIMITS
with standard
cylinder
LIMITS
with cylinder
for low conductivity
PARAMETER
UNIT OF
MEASURE
MIN
OPT
MAX
MIN
OPT
MAX
Water conductivity at 20°C *
S/cm
250
400
1300
125
200
350
pH
7
8
8,5
7
8
8,5
Hardness
mg/l CaCO3
160
200
450
60
120
160
Chlorine
ppm Cl2
0
0
0,2
0
0
0,2
Chlorides
mg/l Cl-
0
<25
250
0
<20
100
Calcium sulphate
mg/l CaSO4
0
0
95
0
0
55
Metal impurities / Solvents / Soaps / Lubricants
mg/l
0
0
0
0
0
0
Temperature
°C
+1
+20
+40
+1
+20
+40
MIN = minimum - OPT = optimal - MAX = maximum
* Water conductivity is always expressed at 20°C; bear in mind that conductivity decreases as water
temperature drops and so water may not be very conductive during winter when mains water is
particularly cold.
In case of very low conductivity, consult chapter 5.3 on page 40 of this manual: Intelligent
production for low conductivity.
Do not supply the humidifier with well water or treated with osmosis purifiers,
demineralisers or softeners or taken from cooling circuits.
Minimum supply
Steam production request
Supplied steam
Maximum supply

Rev. 03-21 Page 9
USER MANUAL
ES100 SERIES HUMIDIFIERS IDENTIFICATION CODES
400ES100N Three-phase 50Hz humidifier with stainless steel casing, with 96kg/h steam
production capacity, integrated electronics with ten selectable operating modes.
400ES100N60 Three-phase 60Hz humidifier with stainless steel casing, with 96kg/h steam
production capacity, integrated electronics with ten selectable operating modes.
ES100 SERIES HUMIDIFIERS TECHNICAL DATA
TECHNICAL DATA AND
WORKING CONDITIONS
400ES100N
STEAM PRODUCTION (in kg/h)
96
ELECTRIC POWER SUPPLY
400V 3/N *
POWER (kW)
71
ABSORBED CURRENT (A)
102
TYPE OF CONTROL
2 NANO displays + 2 EASYSTEAM series Master HUM2
ELECTRONIC CONTROL POWER
SUPPLY
230V 50-60Hz
STEAM OUTLET DIAMETER (mm)
40
CYLINDERS NUMBER
4
VACUUM WEIGHT (kg)
80
WEIGHT WITH OPERATIONAL UNIT
(kg)
160
WATER SUPPLY PRESSURE
1-10 bar
FUNCTIONING AMBIENT TEMP.
+1 ÷ +40 °C
FUNCTIONING AMBIENT HUMIDITY
< 60 %RH (90 %RH non condensing)
STORAGE TEMPERATURE
-10 ÷ +70 °C
PROTECTION RATING
IP20
* FREQUENCY 50Hz OR 60Hz, AS INDICATED ON THE LABEL.
1.4
1.5

Page 10 Rev. 03-21
USER MANUAL
OVERALL DIMENSIONS
ES100N
Model
ES100N
W
526
D
670
H
730
Measurements in mm
1.6

Rev. 03-21 Page 11
USER MANUAL
IDENTIFICATION DATA
The appliance described in this manual is provided with a plate on the side reporting the
identification data of the same:
• Manufacturer Name
• Code of appliance
•Serial Number
•Power supply voltage
• Nominal current
STANDARD EQUIPMENT
For assembly and use, the EASYSTEAM line humidifiers are provided with:
Nr 1 3/4 gas connection for water load.
Nr 1 40mm external diameter connection for water discharge, complete with clamping band.
Nr 4 40mm external diameter connection for the steam tube, with relative clamping band.
Nr 1 User manual.
Nr 1 Test checklist which reports:
-Humidifier model.
-Default configuration.
-Steam production at 100%.
-Electric power supply type.
-Absorbed power in kW.
-Nominal absorbed current.
1.7
1.8

Page 12 Rev. 03-21
USER MANUAL
MAIN INSTALLATION WARNINGS
1. The installation, maintenance and use of the appliance must be carried out by qualified
personnel able to safely perform the requested operations. Carefully read this manual before
performing any operations and follow all its indications.
2. Install the appliance as close as possible to the environment where the steam is to be
introduced, namely in the position that guarantees the shorter length of the steam tubes. We
recommend not to exceed 5 meters.
3. Install the appliance at a height that allows easy access to the control unit for parameter
adjustment and viewing of the display. We recommend a height from the ground of about 1
meter.
4. Install the appliance at a height that allows easy access to the inside of the humidifier for
cylinder replacement.
5. Some parts of the humidifier, during operation, may exceed the temperature of 60°C. Make
sure that the surfaces in contact with the humidifier are compatible with these values.
6. Do not install and use the humidifier near products or objects that can be damaged in contact
with water or the humidity produced.
7. Avoid placing power cables with signal cables in the same conduit (probes and digital
inputs).
8. Reduce the lengths of the connecting cables as much as possible, avoiding that the wiring
takes up the spiral shape, which is harmful for possible inductive effects on the electronics.
9. Install a magneto thermal protection switch, upstream of the humidifier.
10. All conductors used in the wiring must be appropriately proportioned to support the load they
are to supply.
11. If it is necessary to extend the probe, it is necessary to use conductors with a suitable section
and in any case not less than 1mm2.
12. Connect a pipe with a diameter of not less than 40mm and suitable for temperatures not less
than 100°C, to the drain hose. This pipe must be firmly clamped to the drain sleeve and have
vertical development for at least the first 50cm. Make sure that you do not create bottlenecks
and do not exceed the height at any point in the path, the level of the drain sleeve.
CHAP. 2 INSTALLATION
2.1

Rev. 03-21 Page 13
USER MANUAL
13. Use only drinking water for the water load, with a pressure between 1 and 10 bar.
14. Check the default setting shown on the enclosed TEST CHECKLIST, before starting up the
humidifier. If the default setting is different from your needs, set the parameters as indicated
in chapter 3 and in accordance with the connections indicated in chapter 2.4.
15. With the default setting of parameter In1=2, the humidifier to work requires the digital input
1 to be enabled by means of a voltage free contact (terminals 24 and 25 on the electronic
board Master HUM2) regardless of the selected operating mode.
16. If it is not necessary to use an external enable, jumper the terminals 24 and 25 on the Master
HUM2 electronic board or set the parameter In1=0.
17. Without enabling, the display alternates the word OFF with normal displaying.

Page 14 Rev. 03-21
USER MANUAL
INSTALLING THE ES100 SERIES HUMIDIFIER
1. Remove the humidifier from its packaging keeping it upright, remove the protective nylon bag
and check the integrity of the appliance.
2. Put the humidifier on the floor or on a raised support with adequate resistance to the weight of
the machine. Level using the 4 adjustable feet (see fig. 1).
Fig. 1
2.2

Rev. 03-21 Page 15
USER MANUAL
3. With a screwdriver, unlock the safety locks on the sides of the front cover (fig. 4, 5 and 6).
Fig. 4 Fig. 5 Fig. 6
4. Remove the lateral covers by gripping the two handles on the sides and slightly pulling towards
you (fig. 7).
Fig. 7
5. Remove the four protective cardboards above the
cylinder (fig. 8).
Fig. 8

Page 16 Rev. 03-21
USER MANUAL
6. Connect the water discharge tube to the 40mm diameter sleeve, fixing it with the provided
clamping band (fig. 9 e 10).
Fig. 9 Fig. 10
Connect a pipe with a diameter of not less than 40mm and suitable for temperatures not
less than 100°C, to the drain hose. This pipe must be firmly clamped to the drain sleeve
and have vertical development for at least the first 50cm. Make sure that you do not
create bottlenecks and do not exceed the height at any point in the path, the level of the
drain sleeve.
NEVER OPERATE THE HUMIDIFIER IF THE DISCHARGE LINE IS NOT
CORRECTLY CONNECTED!
7. Connect the water supply line to the 3/4 gas connection of the electrovalve located under the
humidifier (fig. 11 and 12).
Fig. 11 Fig. 12
Connect the water supply line with a non-metal piping, e.g. rubber, PVC,
polypropylene, nylon, etc.

Rev. 03-21 Page 17
USER MANUAL
8. Connect the four steam tubes at the four cylinders flanges sleeves, fixing them with the provided
clamping bands (fig. 13 and 14).
Fig. 13 Fig. 14
Use only PEGO HUMIDIFIERS steam tube or other tube with certification that
guarantees its use in the presence of high temperatures without internal vulcanization
processes and release of harmful substances!
DO NOT MAKE BOTTLENECKS, SIPHONS OR LENGTHS GREATER THAN 5
METERS!
To correctly connect the steam distribution line, carefully read chapter 8, STEAM
DISTRIBUTION.

Page 18 Rev. 03-21
USER MANUAL
ES SERIES HUMIDIFIERS SAFETY DEVICES AND POWER SUPPLY
ELECTRIC CONNECTIONS
Connect the power supply to the humidifier terminal board by bringing the three-phase voltage
400V plus the neutral to the RST and N clamps.
It is mandatory to connect the terminal marked by the yellow / green color and the initials PE
to the ground system of the electrical supply network. If necessary, check the efficiency of the
earthing system.
Leave the jumper in terminals 60 and 61 of the terminal board or replace it, if necessary, with a
normally closed emergency contact.
Clamps 62-63 and 162-163 of the terminal board are designed to supply the fan unit; in case
installation of the fan unit, consult the user manual attached to it.
ES100 SERIES SENSORS AND CONTROL SIGNALS CONNECTIONS
The humidifier has ten different operating modes that can be set by the software variable S9
described in chapter 3.5 and by specific electrical connections.
It is also necessary to enable the digital input In1 terminals 24 and 25 on the electronic board
Master HUM2 for all operating modes (enabling = closed contact between clamps 24 and 25). See
the parameter settings In1, In2 and In3 for all possible enablements. Without enabling, the display
alternates the OFF writing with normal displaying.
Below are the specific connections for every functioning mode.
If you want to connect the humidifier with a humidity probes not supplied by PEGO s.r.l.,
contact the after-sales assistance to verify the hardware compatibility between the probe and
the humidifier.
-[S9=0] ON/OFF Functioning:
This type of operation involves the production of steam in only 2 modes: no production or
production at full capacity. The consent is usually given by a voltage free contact coming from
an electrical panel which, in turn, is controlled by a humidistat. Set the second level variable
S9=0 and connect the consent to clamps 24 and 25 of the Master HUM2 board (Enabling
present with closed contact).
Cleaning function (CL1>0):
If CL1>0, when the steam production reaches CL2% the humidifier continues to work for CL1
minutes, then returns to stand-by (the buzzer sounds for 1 minute to signal the end of the
cleaning procedure). With CL1>0, the humidifier always remains in stand-by until the function
is manually activated, which is obtained by pressing the stand-by key.
Steam production request
2.4
Enabling
2.3
ON-OFF
Signal

Rev. 03-21 Page 19
USER MANUAL
-[S9=1] PROPORTIONAL functioning with 4-20mA ambient humidity probe
(INTEGRATED HUMIDISTAT):
This type of operation involves proportional steam production; the humidifier will automatically
regulate the steam production according to the request in the environment depending to the set
point. The consent is provided by a humidity probe at 4-20mA (0-100% RH) that, in addition to
regulating steam production, allows to show the relative humidity of the environment directly
on the humidifier display. Set the second level variable S9=1 and connect the signal 4-20mA of
the humidity probe to clamps 14 and 15; in particular, connect the RH signal to clamp 14, and
connect +V to clamp 15.
-
-
-
The Bp proportional band is the percentage value of humidity around the set point; the
humidifier works proportionally within this value. Example: if the proportional band is set on
default value 10% (±5% set point value) and humidity is set at 50%, below 45% the humidifier
will work at 100% of steam production; above 55%, the humidifier will not produce steam.
Between 45% and 55%, the humidifier will optimally regulate steam production.
-[S9=2] PROPORTIONAL functioning with 0-10Vdc reference signal:
This type of operation involves the production of steam proportionally to the reference signal
0-10Vdc. Example: a reference signal of 6Vdc will allow the humidifier to produce 60% of
steam production referred to the software variable Pr. So, if Pr = 70%, steam production will be
42%. Set the second level variable S9=2 and connect the signal of reference 0-10V to clamps 16
and 17; in particular, connect VRH (0-10Vdc probe output) to clamp 16 and GND mass to
clamp 17.
RH% Ambient
humidity probe
Steam production request
External reference
signal 0-10V
Enabling
GND
VRH
Enabling
RH% Ambient humidity
probe (4-20mA)
RH
+V
External reference
signal 0-10V
Steam production request

Page 20 Rev. 03-21
USER MANUAL
-[S9=3] PROPORTIONAL functioning with 4-20mA ambient humidity probe + 4-20mA
humidity probe in air duct (INTEGRATED HUMIDISTAT):
This type of operation involves proportional steam production; the humidifier will automatically
regulate the steam production according to the request in the environment depending to the set
point and to the value measured in duct.
Set the second level variable S9=3, connect the 4-20mA signal of ambient humidity probe
(0-100%RH) to clamps 14 and 15; in particular, connect RH signal to clamp 14 and +V to
clamp 15. Connect 4-20mA signal of humidity probe in air duct (0-100%RH) to clamps 20 and
21; in particular, connect signal RH to clamp 20 and +V to clamp 21. For further information on
the humidity probe in air duct, refer to chapter 3 “Programming” (variables StC, r0, t1).
-[S9=4] PROPORTIONAL functioning with 0-10Vdc reference signal + humidity probe in
air duct (4-20mA):
This type of operation involves the production of steam proportionally to the 0-10Vdc reference
signal and to the humidity measured in duct.
Set the second level variable S9=4 and connect the 0-10Vdc reference signal to clamps 16 and
17; in particular, connect VRH to clamp 16 and GND mass to clamp 17. Connect 4-20mA
signal of humidity probe in air duct (0-100%RH) to clamps 20 and 21; in particular, RH signal
to clamp 20 and +V to clamp 21.
For further information on the humidity probe in air duct, refer to chapter 3 “Programming”
(variables StC, r0, t1).
Enabling
RH% Ambient humidity
probe (4-20mA)
RH% humidity probe in
air duct (4-20mA)
RH
+V
RH
+V
Enabling
RH% humidity probe in
air duct (4-20mA)
External reference
signal 0-10V
RH
+V
GND
VRH