FRANCO PH5 Instruction manual

INSTRUCTION MANUAL FOR USE
AND MAINTENANCE
PH
PROFESSIONAL
HUMIDIFIER
E N G L I S H
Before installing or running the unit,
it is obligatory to carefully read and consult this manual.
Manual Version: 03-001/2015 Franco srl – Via Nazionale, 80 12010 Cervasca (CN)

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INDEX
INDEX......................................................................................................................................2
1 - INTRODUCTION.................................................................................................................3
1.1 General warnings..........................................................................................................3
1.2 Instructions for proper disposal of the product..............................................................3
1.3 Covenants used throughout this manual ......................................................................4
1.4 Conservation of the instruction manual.........................................................................4
1.5 Recipients.....................................................................................................................5
1.6 Glossary and pictographs.............................................................................................5
1.7 Applicazioni...................................................................................................................9
1.8 Versions........................................................................................................................9
1.9 Identification and data label of the unit .........................................................................9
1.10 Description of the parts...............................................................................................10
1.11 Transport and handling...............................................................................................11
1.12 Warranty.....................................................................................................................11
1.13 Manufacturer’s identification data...............................................................................11
1.14 Statements..................................................................................................................11
1.15 Declaration of conformity............................................................................................12
2 - INSTALLATION.................................................................................................................13
2.1 Before installing..........................................................................................................13
2.2 Positioning..................................................................................................................13
2.3 Electrical connection...................................................................................................13
2.4 Hydraulic connection...................................................................................................14
2.5 Funnel flow and suction..............................................................................................14
3 - OPERATION.....................................................................................................................15
3.1 Getting started............................................................................................................15
3.2 First start.....................................................................................................................15
3.3 Starting .......................................................................................................................15
3.4 Setting.........................................................................................................................15
3.5 Water waste................................................................................................................15
4 - MAINTENANCE................................................................................................................16
4.1 Access to internal parts...............................................................................................16
4.2 Cleaning the disk........................................................................................................16
4.3 Cleaning the tank........................................................................................................17
4.4 Positioning the nozzle.................................................................................................17
4.5 Replacing the spinning disk........................................................................................18
4.6 Changing the pump ....................................................................................................18
4.7 Replacing the fan........................................................................................................18
4.8 Changing the float.......................................................................................................18
4.9 Accessories ................................................................................................................18
5 - TECHNICAL SPECIFICATIONS.......................................................................................19
5.1 Technical data ............................................................................................................19
5.2 Wiring..........................................................................................................................20
5.3 Spare parts.................................................................................................................21
6 - PROBLEMS AND SOLUTIONS........................................................................................23

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1 - INTRODUCTION
1.1 General warnings
This device must be used only for the functions for which it was intended "Adiabatic Cooler – Humidifier”. Any
other use is to be considered improper and dangerous. Franco srl cannot be held liable for any damages caused
by improper, incorrect or unreasonable use, or if the device is used in systems that do not comply with safety
regulations.
- Check the integrity of the device at the opening of the package, paying particular attention to the presence of
damages or deformations of the plastic parts that can lead to breakage and / or malfunction during use. In such
cases do not connect the machine to the mains. Carry out these checks before each use.
- Before connecting the unit, make sure that the data shown on the device’s plate matches that of your electricity
distribution network. The data label is located on the side of the device (par.1.9).
- Respect the safety standards set for the electrical equipment and in particular:
oFollow the installation and operation instructions concerning the use of the equipment.
oDo not place objects on the humidifier.
oAvoid children from using the device, and / or unable subjects without proper supervision.
oDo not touch the humidifier during operation or until the complete stop of the disk.
oNever place water or any other liquids into the device. In the scenario of the device becoming wet,
immediately turn off the electricity by lowering the switch on the electrical panel of your system and
disconnect the power before touching the device.
oDo not insert objects inside the tank as the device may be damaged irreparably.
oDo not use accessories, spare parts and / or components that are not provided or supplied by the
manufacturer.
oAvoid touching the appliance with wet and / or humid hands.
oDo not pull the power cord nor expose it to risk of severing.
oDo not expose the unit to weather (rain, sun, etc...).
oIn case of failure or malfunction, switch off immediately and disconnect the power. Do not try to open or
tamper the device: contact the technical service offered by Franco srl.
oDo not try to fill and / or empty the tank during operation.
1.2 Instructions for proper disposal of the product
Under the European Directive 2002/96/EC.
At the end of its useful life the product must not be disposed of as waste.
The device can be taken to special recycling centers provided by local authorities, or at retailers that provide this
service. Disposing the product in separate parts avoids possible negative consequence to the environment and
to human health, which would both be the result of an inappropriate disposal, and allows the retrieval of
materials so that significant savings in energy and resources would be reached. As a reminder of the obligation
to dispose electrical equipment separately, the product is marked with the crossed mobile waste container.
Fig. 1.1

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1.3 Covenants used throughout this manual
The Manual is divided into autonomous chapters, each of which is addressed to a specific operator’s figure
(installer, operator and maintainer), for which the skills needed to operate the machine safely have been defined.
The sequence of chapters follows the temporal logic life of the machine.
To facilitate the immediate comprehension of the text, throughout the manual are used terms, abbreviations and
pictograms, whose meaning is shown below.
The Instruction Manual consists of a cover, an index and a series of chapters (sections).
The home page lists the identification data of the machine and model, the revision of the manual instructions,
and finally, a picture of the machine described, drawn in order to facilitate the reader in identifying the machine
and its use.
ABBREVIAZIONI
Ch. = Chapter
Par. = Paragraph
P. = Page
Fig. = Figure
Tab. = Table
UNITS OF MEASURE
The units of measure used in this manual are those provided by the International System (SI).
1.4 Conservation of the instruction manual
The instruction manual must be carefully stored and must follow and match the device in all the cases of change
of ownership incurred during the life span of the machine itself.
The conservation must be done by handling the manual with care, with clean hands and on clean surfaces. Parts
must not be removed, torn or arbitrarily modified.
The manual must be stored in a secure environment, protected from moisture and heat, and near the referring
device. The manufacturer, if requested by the User, may provide additional copies of the instruction manual of
the machine.
The User can request additional copies of the manual by writing to [e-mail].
METHODOLOGY FOR UPDATING THE MANUAL
The Manufacturer reserves the right to modify the design or specifications of the machine as part of its policy of
improving and enabling them to comply with the statutory or other requirements or standards applicable in any
territory in which goods are sold, without notifying the Customer and without updating the manuals given to the
user. Moreover, in case of changes (previously agreed between the Customer and the manufacturer) to the
machine installed, which signifies the modification of one or more chapters of the Handbook of Instructions, the
manufacturer will be responsible for sending the modified chapters affected by the structural change (including
the new model of revision) to the User.
The User is responsible, following the directions accompanying the updated documentation, for replacing all the
copies owned, the old chapters with the new chapters, the home page, and the index with the copy updated to
the new revision level.
The manufacturer shall be responsible for the descriptions included in this manual; in case of an inconsistency
being detected in a translated version of the manual (English version), the reader must refer back to the original
Italian version of the handbook and, eventually, contact the sales department, who will make necessary
changes.

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1.5 Recipients
The manual is addressed to: the installer, the operator, and the qualified personnel entitled to the maintenance
of the device.
EXPOSED PERSON: refers to any person exposed, wholly or partially, to a danger zone;
OPERATOR: refers to those persons responsible for installing, operating, regulating, clearing, repairing and moving the machine, and also performing the
maintenance of the device;
QUALIFIED PERSONNEL
QUALIFIED OPERATOR:
refers to the persons who have completed courses of specialization and
training, and that have acquired experience in: installing, starting,
operating, maintaining, repairing and transporting the device, or similar
ones.
The machine is intended for industrial use (professional and not widespread) for which qualified operators are
needed, in particular, workers that:
•Have reached the age of majority;
•Are physically and mentally appropriate to perform works that include technical difficulties;
•Have been properly educated on the use and maintenance of the machinery;
•Have been considered suitable to undertake the assigned job by their employer;
•Can understand and interpret the operator’s manual and the safety requirements;
•Know the emergency procedures and their implementation;
•Posses the ability to operate the specific type of equipment;
•Are familiar with the specific applicable rules;
•Have understood the operating procedures defined by the manufacturer of the machine.
1.6 Glossary and pictographs
In this section we list the non common terms included in the manual. The following also explains the
abbreviations used and the meaning of the pictograms in relation to the qualification of the operator and the state
of the machine; their use can provide quick and unique information, necessary for the proper use of the machine
under safety conditions.
GLOSSARY (Att. I p. 1.1.1 Dir. 2006/42/CE)
HAZARD A potential source of injury or damage to personal health;
DANGER ZONE All areas within and/or around the machinery in which the
presence of a person constitutes a risk to the health and safety of
himself/herself;
EXPOSED PERSON Any person that finds himself/herself entirely or partially in a
hazardous area;
OPERATOR The person responsible for installing, operating, regulating,
clearing, repairing and moving the machine, and also performing
the maintenance of the machinery;
RISK The combination of probability and severity of an injury or harm to
health that can arise in a hazardous situation;
GUARD The part of the machinery used specifically to provide protection by
means of a physical barrier;
PROTECTION DEVICE The device (other than a shelter) that reduces (alone or in
conjunction with a shelter) the risk of an operation;
INTENDED USE Use of the machinery according to the information provided in the
instruction manual;
REASONABLY FORESEEABLE
MISURE
Use of the machinery in an indifferent manner from that stated in
the instruction manual, which may result from a foreseeable
human behavior.

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OTHER DEFINITIONS:
HUMAN-MACHINE INTERACTION: Any situation in which an operator interacts with the machine in any of
the operational phases at any time of the life of the machine itself;
OPERATOR’S QUALIFICATION: Minimum level of competence that an operator must have in order to
perform the described operation;
NUMBER OF OPERATORS: The appropriate number of operators needed to optimally perform the
described operation, it is derived from an accurate analysis made by the
manufacture, and for which the use of a different number of operators
may prevent the occurrence of the expected result or endanger the
safety of the personnel involved;
STATE OF THE MACHINE: The state of the machine includes the operating mode, for example:
running in automatic mode, maintained action control (jog), shutdown,
etc… the safety conditions on the machine such as included protectors,
excluded protectors, emergency shutdown, isolation from energy
sources, etc…
RESIDUAL RISK: Risks that remain, despite of the protective measures incorporated in the
design of the machine, the complementary protections, and the
additional protective measures.
SAFETY COMPONENT: Component:
- designed to fulfill a safety function;
- the failure and/or malfunctioning of which endangers the safety of
persons (such as a lifter; a fixed, moving or adjustable protector; an
electrical, electronic, optical, pneumatic or hydraulic device that interlock
a protector; etc…).

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PICTOGRAPHS CONCERNING THE OPERATOR’S QUALIFICATION
Symbol Description
Generic laborer: operator lacking of specific competences, capable of performing only simple tasks
under the control of qualified technicians.
Lifting and handling vehicles driver: operator qualified for the use of vehicles used in lifting and
handling materials and machines (carefully following the manufacturer’s instructions), in accordance
with the user’s country’s laws.
Mechanic maintainer: qualified technician, able to operate the machine under normal conditions, to
run it with the maintained action control (JOG) with disabled protections, and to intervene on the
mechanical parts in order to make the necessary adjustments, maintenances and repairs. Typically
this operator is not qualified to work on electrical systems while the device is connected to the
mains.
Electrical maintainer: qualified technician, able to operate the machine under normal conditions, to
run it with the maintained action control (JOG) with disabled protections, and enabled to any kind of
operation of electrical adjustment, maintenance and repair. This operator is qualified to work on
electrical systems while the device is connected to the mains.
Manufacturer’s technician: qualified technician offered by the manufacturer to carry out complex or
particular operations or, in any other case agreed with the user. The skills are, as contingently
appropriated, mechanical and/or electrical and/or electronic and/or concerning software.
PICTOGRAPHS CONCERNING THE STATE OF THE DEVICE
The pictographs contained in a square/rectangle provide information.
Symbol State of the device
Device OFF: with electric and pneumatic power disconnected.
Machine in motion: with automatic function, movable protections closed and relative interlocking
devices activated, and fixed protections closed.
Device ON: in standby and ready to start by functional consent activation (eg. switchboard
consent), movable protections closed with relative safety device included, and fixed protections
closed.

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PICTOGRAPHS CONCERNING SAFETY
The pictograms contained in a triangle indicate DANGER.
The pictograms contained in a circle impose PROHIBITION / OBLIGATION.
Pictograph Denomination
Hazardous voltage.
Entanglement.
Dragging.
General danger.
Do not remove safety devices.
Prohibition of cleaning, oiling, greasing, repairing or adjusting by hand when the device is in motion.
Duty to remove power before starting works or repairs.
Protective gloves required.
Safety footwear required.
Safety helmet required.

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1.7 Applications
In the industrial field, the machine is installed in places where it is necessary to maintain a certain humidity
level, for example in fruits and vegetable refrigerating rooms, in aging warehouses, in the paper and tobacco
industries, and in the textile companies.
In agriculture the machine is used to humidify greenhouses and mushroom farms, and for disinfectant
treatments.
In the animal husbandry the machine is used to maintain the humidity in rooms or nebulize disinfectant in the
environment or other solutions.
The materials used in building the machine ensure reliability and durability in time.
The casing is made in PE, the screws are stainless steel made, and the remaining parts of the humidifier are
made in PA and PC.
The use of materials that do not suffer from the corrosive action of water and acids makes the PH a machine
capable of working in almost all the environments.
The PH combines the power of the humidification, the ease of installation, and, by operating without nozzles is
not subject to clogging by impurities and limestone.
The required water pressure is that of the water supply (between 2 and 6 atm).
This device must be used only for the functions for which it was intended
and designed: "Humidifier”.
Any other use is to be considered improper and dangerous.
1.8 Versions
The professional humidifier PH is available in the following versions:
3308400 Version PH3 - up to 2,5kg/h - 280m³/h - 230V 50Hz
3308500 Version PH5 - up to 5,0kg/h - 330m³/h - 230V 50Hz
3308200 Version PH7 - up to 7,5kg/h - 390m³/h - 230V 50Hz
3308410 Version PH3 - up to 2,5kg/h - 280m³/h - 230V 60Hz
3308510 Version PH5 - up to 5,0kg/h - 330m³/h - 230V 60Hz
3308210 Version PH7 - up to 7,5kg/h - 390m³/h - 230V 60Hz
1.9 Identification and data label of the unit
Each machine is identified by the CE plate on which, indelibly set, is
reference data of the device itself.
In any communication, either with the manufacturer or with the customer
service, always cite these references.
Fig.1.2

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1.10 Description of the parts
Fig.1.3
Constituent parts of the centrifugal atomizer
Fig.1.4
Spinning disk
Nozzle
Motor
Fixed disk
Electric connections box
Protection grill
Anchorage bracket
Fan
Electric motor
Water flow regulating valve
Centrifugal atomizer
Divider (PH3) or
Protection grill (PH5 - PH7)
Air outlet (PH3)
Handle
Pump
Float valve

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1.11 Transport and handling
The machine has been properly packaged before being put into strong carton boxes.
Prevent damages to the components of the device by taking care when opening the package.
Verify the integrity of the machine by controlling that there are no visible damaged parts.
Do not dispose the packaging elements in the environment; they must be placed in proper collection
points.
The PH can be lifted and hung by using the proper handle.
WARNING!
Before handling the device:
a. stop the machine,
b. disconnect the electricity supply,
c. interrupt the water supply.
To lift the machine, use a suitable lifting device (consult the weights table).
Lift the machine slowly, being careful not to drop it and move the straps depending on the centre of mass.
1.12 Warranty
This device is guaranteed for 12 months from the date of manufacture for all failures attributed to a proven
manufacturing or material defect.
All the parts damaged by transport, improper maintenance, negligence, inability to use, improper use, tampering
by unauthorized personnel and by any other cause not dependent from the company Franco s.r.l. from Cervasca
(CN), Italy. During the warranty period, the company Franco s.r.l. commits itself to replace or repair free of
charge those parts which result faulty from the origin.
The intervention must be made at Franco s.r.l. with transport charged to the user.
1.13 Manufacturer’s identification data
Manufacturer
FRANCO S.r.l.
Registered office – Administrative headquarters
VIA NAZIONALE, 80 - 12010 CERVASCA (CN) - ITALY
Contacts
Tel.: [phone] - 61.16.63
Fax: [phone] - 61.23.37
Email: [email protected]om
Web: www.francosrl.com
1.14 Statements
The machine is built in accordance with the EC directives that are relevant and applicable at the time of the
market entry of the machine itself.
The machine is not among those mentioned in the Att. IV of the Directive 2006/42/CE.

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1.15 Declaration of conformity
(Att. IIa DIR. 2006/42/CE)
THE MANUFACTURER
FRANCO S.r.l.
Company
Via Nazionale, 80 12010 CN
Address Postal code Province
Cervasca Italy
City Country
DECLARES THAT THE MACHINE
Umidifier PH3; PH5; PH7
Description Model
3308400; 3308500; 3308200; 3308410; 3308510; 3308210 2015
Series/Registration number Year of construction.
PH Professional Humidifier
Commercial denomination
Humidification of environments
Intended use
Meets the following essential requirements:
RESS from 1.1 to 1.7
Complies with the EU directives:
Directive 2006/42/CE - Directive 2006/95/CE - Directive 2004/108/CE
Referring to harmonized norms: EN 120100-1; EN 12100-2;EN 60204-1
AND AUTHORIZES
Marco Fantino
Nominative
Via Nazionale 80 12010 CN
Address Postal code Province
Cervasca Italia
City Country
TO COMPILE THE TECHNICAL FILE ON HIS BEHALF
Place and date of the document The manufacturer
Cervasca, 10/05/2010
Firma
Function
Administrator
D.C. : DC N-002/000001

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2 - INSTALLATION
2.1 Before installing
In order to start the humidifier PH, the following conditions are required:
• connection to the electric power supply with voltage and frequency suitable for the machine and with grounding
and safety devices;
The installation must meet the safety requirements
provided by local regulation in force.
• connection to water supply (pressure required: between 2 and 6 atm);
• water drain connection.
Make sure that all the connections necessary to operate the equipment have been properly prepared.
2.2 Positioning
The humidifier PH must be installed horizontally, placing the support on the ground or on an
appropriate horizontal shelf. If necessary, use the holes Ø6 situated on the support (remove the
pins by levering with a screwdriver). Always keep the machine in a horizontal position (the
distance between the holes is shown in Figure 2.1)
Holes positioning Distance and holes positioning
Fig. 2.1
2.3 Electrical connection
The installation involves the use of a humidistat or a thermostat ON/OFF controlling the power
of the machine; it is still possible to use, alternatively, a switch ON/OFF, in this case the start
and stop of the machine must be done manually.
The choice, however, does not affect the installation procedure described below.
•Electrical connections must be undertaken by specialized, experienced and trained
technicians, in accordance with the current legislation.
•Ensure that the electricity supply specifications correspond to those indicated in the
in this manual.
•It is obligatory that the device is grounded using an efficient ground line.
The installation must foresee a device enabled to disconnect the machine from the electric supply, furthermore,
a safety fuse of 2.5 A (delayed motor starting type) must be installed.

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2.4 Hydraulic connection
The installation of the humidifier foresees the connection of the piping lines of the water supply
and the drainage, to proper points (Fig. 2.2 – Water supply connection 3/8” – Threaded exhaust
hole M12).
The pipes that must be used are of type hard “rilsan” for the supply, while, for the waste, a M12
threaded connection is predisposed.
2.5 Funnel flow and suction
In order to collect the air from the exterior of the room, a Ø200mm tube is to be connected to the device’s suction
inlet.
Furthermore, the PH3 versions, also allows to canalize the outlet flow, thanks to a special outlet in which a
Ø125mm tube can be inserted.
Fig.2.2
Water supply 3/8”

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3 - OPERATION
3.1 Getting started
Before operating the humidifier, verify that:
1. All connections, both electrical and hydraulic, are made according to the instructions contained in this
manual;
2. The humidifier is free and clean;
3. The water supply tap is open.
3.2 First start
- Check the correct air flow direction (Fig. 3.1);
- Make sure all wires are regularly placed and not caught or pulled by any object;
- Ensure that the water connections are correct;
- Open the water supply tap and make sure that there are no leaks along the load circuit;
3.3 Starting
The machine starts automatically when the electrical power is switched on.
The pump circulates the water bringing it to the rotating disk that nebulizes the water inside of the humidifier. The
particular shape of the PH humidifier allows the outlet of only the smallest and lightest particles, carried by the
airflow created by the fan.
3.4 Setting
It is possible to vary the amount of atomized water by adjusting the valve that regulates the spinning disk’s water
supply (Fig. 3.1).
The maximum quantity of nebulized water can differ from one model to another (the quantity of atomized water
affects the quality of the fog). Consult the technical tables for further details.
Fig. 3.1
Adjust the water flow with the proper flow regulator in order to obtain a nebulization without drag
of droplets by the spinning disk.
Warning: an excessive quantity of water increase the size of the droplets
The pump must not operate without water.
The temperature of the liquid used must not exceed 35°C.
3.5 Water waste
The machine comes with a cap placed on the bottom of the storage tank. It is possible to empty the tank by
removing the cap.
To do this operation, use a #19 wrench.
WARNING!
Do not insert objects inside
of the humidifier!
Air
Flow

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4 - MAINTENANCE
Before undertaking any maintenance,
disconnect the device from the electricity and water supply!
Periodically check that the amount of water reaching the humidifier is correct, if necessary adjust the flow
regulator. Keep clean the disks, the tank and the internal components, and prevent the accumulation of dirt on
the lid.
4.1 Access to internal parts
To access internal components of the device in order to do the maintenance, it is necessary to open the device
following this exact procedure:
1) Unplug or stop the electric supply and make sure it cannot be switched on during maintenance;
2) Unplug or stop the water supply and make sure it cannot be switched on during maintenance;
3) Remove the safety protection grill unscrewing the 4 hexagonal-head screws with a no.7 screwdriver;
4) Remove the 2 M5 screws on the suction inlet with a no.8 wrench (fig.4.2)
5) Remove the 11 M5 screws that unite the two parts of the device with a no.8 wrench (fig.4.3)
6) Gently pull the superior part of the device.
4.2 Cleaning the disk
Keep the disk clean to avoid the formation of calcareous deposits or accumulation of dirt, which could cause an
increase in vibration or coarse nebulization.
To clean the rotating disk, simply use a soft damp cloth and a non-toxic and solvent free detergent, rubbing and
being careful to avoid excessive pressure.
Do not use solvents.
The fixed disk should be cleaned with a small brush with stiff bristles, rubbing the teeth, being careful not to
damage them.
Any eventual lime scale can be removed with muriatic acid diluted with water.
Fig. 4.3
Fig. 4.1
Fig. 4.2

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4.3 Cleaning the tank
Periodically clean the water tank.
To ease the cleaning, it is necessary to remove the humidifier’s motor (4 screws – no.10 wrench) and remove
the float’s sphere and the pump.
To remove the sphere, unscrew the float’s bracket’s plastic wing nut (Fig 4.4).
To remove the pump it is necessary to rotate it in vertical position (Fig. 4.5), operate while holding with a no. 13
spanner the stop ring in which the pump is placed and pull gently the pump up to complete removal.
Once all these operations have been completed, it is possible to clean the interior of the tank with a cloth or a
sponge, rubbing gently on the walls. Do not use solvents.
It is necessary to periodically check the functioning and the cleanliness of the pump and the float.
Each 2-3 months clean the internal parts of the pump with warm water.
WARNING!
Repeat the sequence backward, being careful to reposition the float so that the water level inside the
tank covers the pump completely.
A water level that is too high may cause a malfunctioning in the atomizing process and, consequently,
may overheat the motor. A water level that is too low does not allow the pump to correctly operate.
Fig. 4.4 Fig. 4.5
4.4 Positioning the nozzle
After removing the spinning disk (par. 4.5), verify that the nozzle is positioned as shown in the following pictures.
If the nozzle is not properly positioned, rotate the nozzle until the optimal position is reached.
Always make sure that the nozzle rests properly in its holder.
Fig. 4.6 Nozzle positioning
~ 45°
Nozze
holder

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Fast connection
3/8”
attacco rapido
Float
Ring Nut
4.5 Replacing the spinning disk
Use a flat-head screwdriver to remove the cap covering the spinning disk by levering the hollow. With a Nut-
driver no. 7 remove the M4 screw (fig 4.7).
Using a pair of flat-head 150mm screwdrivers, pry between the spinning disk and the fixed disk to remove the
disk from the motor shaft (fig 4.8).
Grease the driveshaft and insert the new disk, checking the alignment of the keys and pressing the center
without blinking or exerting excessive force. Replace the washer, the M4 screw and the cap.
Verify that the spinning disk can rotate without obstructions and that the distance between the spinning disk and
the fixed disk is less than 6mm.
Fig. 4.7 Fig. 4.8 Fig. 4.9
4.6 Changing the pump
To remove the sphere it is necessary to rotate it in vertical position (Fig. 4.5), operate while holding with a no. 13
spanner the stop ring in which the pump is placed and pull gently the pump up to complete removal.
Repeat the sequence backward, being careful to reposition the float so that the water level inside the tank covers
the pump completely.
4.7 Replacing the fan
Use a no.7 screwdriver to unscrew the central screw on the fan’s impeller.
Remove the fan. Before positioning the new fan, grease the driveshaft, being careful not to misplace the key.
Ensure the screws are replaced properly, fixing the fan and safety grill.
4.8 Changing the float
Disconnect the water supply and remove, with a no.26 wrench,
the fast connection 3/8”.
Remove the four M6 screws that fix the motor with a no.10
wrench, loose the cable of the motor and disconnect the supply
tubes on the hard disk.
Remove the motor. Unscrew the plastic ring nut indicated in Fig.
4.10 with a no.30 wrench and, consequently, remove the body
of the float.
Place the new float and repeat the sequence in the opposite
direction, so that the water level inside the tank covers the
pump completely.
Fig. 4.10
4.9 Accessories
A full range of accessories matching your PH is available, including electronic humidity controls, thermostats,
timing systems for the drainage of the tank (anti-legionella), electric wiring accessories, hydraulic accessories,
air conveying and inhalation channeling pipes.
Request the accessories catalog from your dealer for further details.
Flat-head screw-
driver L=150mm

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5 - TECHNICAL SPECIFICATIONS
5.1 Technical data
General data
PH
PH3 - 3308400 PH5 -3308500 PH7 -3308200
Atomization capacity lt/h up to 2,5* up to 5,0* up to 7,5*
Electrical supply 1 phase
Weight Kg 11
Air flow m³/h
280 330 390
Electrical characteristics
Fan-humidifier’s motor
Power W 250
Voltage V 230
Current A 2,3 2,2 1,98
Frequency Hz 50
Pump’s motor
Power W 14
Voltage V 230
Frequency Hz 50
* with free outlet
P
H: 420; PH3:
507

FRANCO srl Manual of use and maintenance PH
20
5.2 Wiring
All the wires used must be suitable to carry the current intensity (A) of the motor (par. 5.1).
The terminal’s screws must be accurately tightened.
Make sure that the electricity supply characteristics are exactly as shown in the table (par. 5.1).
Install a differential magnetic switch upstream of the device.
Protect with a suitable motor overload protection (par 5.1).
Make sure all connections are stuck on the box, the box cover is secured and that the screws
are tightened to ensure the necessary level of protection.