1_Manual

Drying dehumidifier manual
Please read this manual before installing and using this equipment
FOOD MACHINE UNION GUANGZHOU CO.,LTD
ADD:NO.33TH DONGCHE ROAD SHAWAN TOWN PANYU GUANGZHOU CHINA
TEL:0086-20-34551359
Email: export@foodmachineunion.net

Dear Customer:
Thank you for choosing YOSLON high-efficiency, energy-saving and safe air source heat pump drying
dehumidifier. In providing you with energy-saving, environmentally-friendly and safe drying equipment,
energy-saving is also our common pursuit!
to users
>Please read this manual before installing and using this equipment. After reading it, please keep this
manual for future reference.
>Installation and maintenance should be undertaken by professionals who are familiar with national and
local safety regulations. Failure to comply with the instructions, precautions and safety regulations
contained in this manual during installation, maintenance and use may result in damage to the equipment
or property loss, and may cause injury to the operator. The best prevention is: correct installation, correct
operation, and regular maintenance.
>This manual is accurate at the time of publication, but due to continuous product improvement, the
company reserves the right to change the technical data of the product without notice, and does not
assume any responsibility for this.
>After reading this manual, if you need technical advice, please contact your local dealer or us.
Introduction of Air Energy Heat Pump Technology
The heat pump is essentially a heat lifting device. The air energy heat pump drying unit uses the reverse
Carnot principle to absorb heat from the surrounding environment and transfer it to the object to be
heated (the object with a higher temperature). Its working principle is the same as The refrigerators are the
same, all work according to the reverse Carnot cycle, but the difference is that the operating temperature
range is different.
Advancement of heat pump technology:
1.Energy saving: thermal efficiency is 460%, operating cost is 1/3 of gas and oil boiler, 1/4 of electric water
heater, 40% lower than solar energy;
2. Environmental protection: no waste heat, waste water, waste gas;
3. Safety: Separation of water and electricity, no leakage risk.
Introduction to technology prospects
The material drying process is a huge energy-consuming process. According to statistics, the energy
consumed for drying in most developed countries accounts for 7%-15% of the country's total energy
consumption, while the thermal efficiency is only 25%-50% And most of the drying process, especially for
heat-sensitive materials (such as food and biological materials), will have an impact on its color, nutrition,
flavor and organization. Heat pump drying technology has the advantages of low energy consumption, low
environmental pollution, high drying quality, and wide application range. Its excellent energy-saving effect
has been proved by various experimental research institutes at home and abroad.
Fourth, the working principle of the air energy heat pump drying dehumidifier
The air-energy heat pump drying and dehumidification unit is mainly composed of a finned
evaporator (outer machine), a compressor, a finned condenser (inner machine) and an expansion valve.
The evaporation of the working fluid (absorbing the outdoor environment) Heat) a compression f
condensation (release heat in the indoor drying room) throttling a thermal cycle of evaporation, so as to
transfer the heat in the external low temperature environment to the drying room, the refrigerant is under
the action of the compressor Circulate in the system. It completes the gaseous boosting and heating
process in the compressor (the temperature is as high as iooDC). It enters the internal machine and

releases high-temperature heat to heat the air in the drying room. At the same time, it is cooled and
transformed into a liquid state. When it runs to the external machine After that, the liquid quickly absorbs
heat and evaporates to transform into a gaseous state again, and at the same time the temperature can
drop to -o°c~-10°C, then the air around the heat absorber will continuously transfer heat to the
refrigerant. ,
When the air-energy heat pump drying and dehumidifying unit is working, it will absorb the energy QA in
the low-temperature environment medium from the ordinary air conditioner and heat pump. It consumes
a part of the energy, that is, the pressure-mirigation combined working fluid circulation system is
condensing QC, QOQA+QB are released in the device, so the high temperature heat pump (Huangan—k&W
is (QB + QC) /QB), and the heating efficiency of other heating equipment is less than 1, so the air can push
the W efficiency in the boat. It is far greater than the efficiency of other heating equipment. It can be seen
that the use of air energy heat pump dryers for drying can save energy at the beginning, while also
reducing the emission of CO2 and other pollutants, achieving the effect of energy saving and emission
reduction
The characteristics of air energy heat pump drying dehumidifier
1. Convenient installation: convenient installation and demolition, less floor space. Can be installed indoors
and outdoors;
2. High efficiency and energy saving: only need to consume a small amount of electricity, it can absorb a lot
of heat in the air steam. The electricity consumption is only 1/3-1/4 of the electric heating heater,
compared with the coal-fired gas dryer , It can save about 75% of operating costs: 1 kilowatt-hour is
equivalent to 4 kilowatt-hours.
3. Environmental protection and pollution-free: without any combustion and emissions, it is an
environmentally friendly product with sustainable development.
4. Safe and reliable operation: The operation of the entire system is free of flammable, explosive, poisoning,
short circuit and other hazards that may exist in traditional dryers (fuel, gas or electric heating). It is an
absolutely safe and reliable semi-closed drying system .
5. Long service life and low maintenance cost. It is developed on the basis of traditional air conditioner
technology with stable performance, reliable performance and long service life: safe and reliable operation,
automatic and manual operation, and intelligent control.
6. Comfortable and convenient, high degree of automation and intelligence, using self-control thermostat.
Continuous drying operation for 24 hours.
7. Air energy heat pump drying dehumidifier has a wide application range and is not affected by climate; it
can be widely used for heating and drying operations in food, chemical, pharmaceutical, paper, leather,
wood, agricultural and sideline product processing industries.
6. The air-energy heat pump drying dehumidifier is suitable for seafood, vegetable dehydration, melon
seeds, peanuts, cloth, clothing, sludge, gypsum, pasture, tobacco leaves, fruits and vegetables, meat
products, casings, hat leaves, leather, incense , Plum berry, dried fruits, grains, dried noodles, yuba,
fertilizers, medicines, Chinese medicinal materials, paper products, wood, hardware products, metallurgical
products, mining by-products, new coal, slime. etc. Drying of bed linen in hotels, constant temperature of
electroplating solution in plating plant, heating and insulation of high temperature hot water in
slaughterhouse, high temperature hot water supply in star hotels.
7, air energy heat pump dryer operating instructions

Boot interface
Main interface; standby page; boot and shutdown page;
Status query interface: temperature query; equipment status;

User setting interface: Password: 1234
User setting interface: After entering the password, set user parameters

System setting interface: Password: 3956
Technology serves life
System setting interface: After entering the password, more system setting parameters will appear.
Special attention: non-professional and technical personnel are forbidden to debug the system setting
parameters. If there is any violation, the consequences will be at your own risk!

System setting interface: After entering the password, more system setting parameters will appear.
Special attention: non-professional and technical personnel are forbidden to debug the system setting
parameters. If there is any violation, the consequences will be at your own risk!

System setting interface: After entering the password, more system setting parameters will appear.
Special attention: non-professional and technical personnel are forbidden to debug the system setting
parameters. If there is any violation, the consequences will be at your own risk!

System setting interface: After entering the password, more system setting parameters will appear.
Special attention: non-professional and technical personnel are forbidden to debug the system setting
parameters. If there is any violation, the consequences will be at your own risk!
System help interface: you can query alarm records, curve query, etc.;
Fault query: Intuitively query the current fault and the fault history, and return to the main interface.

Electrical schematic diagram
Unit installation
Only professionals can install and debug this machine!
(1) Installation preparation
1. Acceptance
Upon receipt of the goods, the unit should be carefully inspected to confirm whether the goods are
damaged during transportation, and check the host and accessories according to the packing list, and check
whether there are any missing parts. The outdoor unit is pre-filled with sufficient refrigerant before the unit
leaves the factory. Check whether there is pressure in the unit before installation, and confirm whether
there is any leakage during transportation.
2. Handling
When handling, forklifts, cranes or slings should be used to move the unit to a designated location. When
handling, take protective measures such as shock absorption to prevent collisions and damage to the
external spraying of the unit, which may cause the unit to be easily corroded. The unit should maintain a
vertical state, and the tilt angle of the unit should not exceed 30°. It is recommended that the outdoor
unit be hoisted in place as much as possible before removing the wooden packaging.
(2) Installation attention
The installation position of the unit is flexible, and the installation position can be determined according to
the production process and the actual site. The following points must be noted.
It is assembled and installed by special personnel. The installation must comply with the corresponding
regulations of the local government and relevant departments.
• Consider leaving enough space to connect water pipes and wires, and consider the space required for
maintenance (not smaller than the gap as shown in the figure below).
• After the unit is installed, check whether the unit is well fixed and whether the feet are equipped with
shockproof rubber pads.
• The unit should be installed in an outdoor ventilated place, and should be kept a proper distance from
the adjacent wall, as shown in the figure, so as not to obstruct the air circulation and affect the air
conditioning effect, and it is also convenient for maintenance. The distance between the obstruction in the
direction of the air outlet of the unit and the unit shall not be less than 1.8 meters.
note
A Try to avoid the exhaust direction facing the direction of strong wind all year round, and the exhaust air
will not return;

B. Avoid installation in places where dirt, fallen leaves and insects gather to prevent blockage of the heat
exchanger;
C The heat exchanger should be cleaned regularly to ensure heat exchange efficiency;
D As far as possible, install sunshades above the unit to protect the unit.
The E unit should be installed close to the power source for easy wiring. The installation place must be
conducive to the drainage of rainwater and condensate, without water accumulation.
Unit F should not be used in an environment containing oil, salt, and corrosive gases. These substances will
corrode the unit, cause malfunctions or even shorten the life of the unit.
G. The installation location must have sufficient strength, and the unit feet should be equipped with shock
absorbers or cushions to reduce vibration transmission;
The H unit can be directly fixed on the base with expansion bolts. The size of the unit installation
positioning hole is shown in the unit outline drawing. The base can be prefabricated with cement and a
drainage channel is reserved. Angle steel can also be used to make brackets, add shock-proof rubber pads,
and place them on the ground or roof plane. Small units can also be wall mounted, that is, they can be
mounted on angle steel brackets. The angle steel brackets are fixed on the wall. The support capacity after
the bracket is fixed should be greater than the unit 4 times the weight. The surface of the base should be
level.
(3) Electrical installation
'The wires that need to be installed and connected on site include external power cords, controller wires,
unit connection wires, customer configuration power wires, and control signal wires.
After the charging unit is installed in place and tested, you can connect the power cord, electrical control
and installation and connection lines. All wires must be firmly connected and must not be in contact with
any moving parts. All wires must be rubber wires and must meet the requirements of this manual. The unit
requires grounding measures, and it is strictly prohibited to use the unit without reliable grounding. All
electrical equipment and installation work must meet the requirements of national and local installation
regulations. Warning: The wire must not be tied to the connecting copper pipe without insulation.
Note: All protection and interlocking devices must be installed and connected to the corresponding
terminal interface in the control box, otherwise the malfunction and damage caused by this will not be
covered by the warranty.
Note: The ground connection wire must be longer than other main power wires.
Commissioning
After the standby group is installed, first check whether there is any problem with the installation, then
check whether the power supply voltage is normal, and finally start the machine for debugging. For a
three-phase unit, if there is no response when the unit is powered on, the unit should be powered off to
adjust the phase sequence of the unit's power supply (any two of the three phases can be adjusted). During
operation, check the unit's operation If the compressor has abnormal vibration or noise, whether the fan is
normal, whether the fan is running in the correct direction, and whether the unit and pipeline have
abnormal noise.
During operation, please pay attention to the following points:
A. The set temperature in the controller room must be at least 3°C higher than the room temperature
before the compressor can start;
B. Computers, televisions and other equipment should not be close to the controller, otherwise they will
interfere with each other and affect operation
C When the unit is running, please do not completely close the doors and windows, but ventilate to ensure
the stable operation of the unit;
D. The controller and the electric control box of the unit should be protected from moisture, do not operate
the unit with wet hands, and do not flush the unit directly with water to prevent electric shock;

CAVEAT
During operation, if you find any abnormal phenomena (such as burning smell, electric control box flashing),
please stop the machine immediately, turn off the power, ask the dealer for help, and wait for professional
maintenance personnel to check and repair. Because continuing to run under this condition will cause
damage to the unit,
electric
1. This unit should be equipped with a dedicated power supply, the power supply voltage fluctuation range
is ±10%, and an automatic air switch should be used. Its rated current is 1.5 times the unit's operating
current. The use of knife switches is absolutely prohibited.
2. The unit should be grounded reliably.
3. Do not operate the unit switch frequently, and should not exceed four times per hour. The electric
control box should be protected from moisture.
4. For the three-phase power unit, the unit is equipped with a phase sequence protector, and there is a
phase sequence requirement for the external power supply. If the control board does not respond when
the power is turned on and the unit does not start, please turn off the main power supply and connect the
external three-phase Adjusting the phase of the power supply and then turning it on may even cause
electric shock or fire accidents.
Unit maintenance
>The following work should be done before using this machine every season:
Before starting, the compressor should be warmed up for no less than 12 hours to reduce the amount of
liquid R22 in the compressor and increase the oil temperature to reduce compressor wear when the unit is
started.
When using the unit for the first time, observe the start-up and operation of the unit, and immediately
shut down and check if there is any abnormality.
>Clean the heat exchanger regularly (once every three months) to ensure the operation effect of the unit.
Cleaning must be carried out by professional air-conditioning technicians.
>The drain pipe must be checked before the unit runs. If it is blocked, foreign objects must be removed so
that the condensate drains smoothly; when winter comes, check and clean the drain pipe to prevent
freezing and cracking of the condensate pipe.
>When the unit fails, please contact the dealer or agent immediately, and do not disassemble or repair by
yourself to cause the failure to expand.
>Please turn off the main power supply when it is not used for a long time, otherwise the unit will still
consume a certain amount of power. At the same time, ensure that the water in the heat exchanger and
system pipes is drained to prevent the heat exchanger and pipes of the unit from freezing and exploding in
winter. But the next time it is turned on, the unit needs to be powered on one day in advance to preheat
the compressor. '
>Maintenance and maintenance must be performed after cutting off all power sources of the unit to avoid
danger.

Common faults and solutions
Serial
number phenomenon the reason Approach
1
2
3
The unit does not work
after connecting to the
power supply
Low voltage switch
protection action
Exhaust pressure is too
high
Reverse phase protector does not
work Improper adjustment of
controller
Insufficient refrigerant, fluorine
leakage in the system Improper
adjustment or failure of the
pressure switch, insufficient air
flow/water flow
Condenser is dirty
Overcharged refrigerant
Air volume is too small / return air
temperature is high
Adjust the phase sequence (limited to
380V) Check the power supply
Adjust the controller according to the
instructions
Detect leaks, repair leaks, and
supplement refrigerant
Adjust or replace the pressure switch
Cleaning the filter
Clean the condenser
Drain excess refrigerant
Clean the filter
4 Inspiratory pressure is Overcharged refrigerant Drain excess refrigerant
5
Inspiratory pressure is
too low
The ambient temperature is too low
The refrigerant charge is too low
Compressor failure Overcharged
Supplementary refrigerant
Replace compressor
6
Excessive operating
noise
refrigerant Fan system failure Loose
mounting screws
Drain excess refrigerant
Repair fan
Fastening screws

After-sales service
respected user:
Thank you for choosing the air source heat pump drying unit produced by our company!
Before use, please read the instruction manual carefully, and correctly grasp the installation and use
methods of this product. If you have any questions or comments, please contact the unit installation unit or
our company, and we will provide you with satisfactory and thoughtful service.
The air source heat pump drying and dehumidifying unit you purchase has a warranty period of one year
from the date of purchase; free service during the warranty period, and appropriate material costs will be
charged after the warranty period. The unit implements lifetime maintenance service.
If a failure occurs, please notify the company of the failure and the warranty card number, and we will
assign a technical engineer to maintain it.
The following conditions are not covered by the warranty:
1. Faults caused by natural disasters; for example: floods, earthquakes, typhoons and lightning.
2. Faults caused by improper maintenance; for example: the fins are not cleaned, and they are directly
flushed with water.
3. Faults caused by exceeding the use range; for example: exceeding the temperature range, the power
supply voltage is too long and so on.
4. Failures caused by changing the circuit distribution circuit or modifying the product privately;
5. Failure caused by installation violation.