Digitus DN-97330 User manual
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Table of Contents
1. Security Information................................................................................... 3
1.1. Symbol Description............................................................................. 3
1.2. Operating Precautions........................................................................ 4
2. Product Description.................................................................................... 6
2.1. Product Composition.......................................................................... 6
2.2. Product Size ........................................................................................ 8
2.3. Envrionmental Requirements............................................................. 9
3. Installation and Commissioning ................................................................. 9
3.1. Installation Preparation...................................................................... 9
3.2. Unpacking Inspection ....................................................................... 10
3.3. Device Installation ............................................................................ 10
3.3.1. Mechanical Installation ............................................................. 10
3.3.2. Electrical Installation ................................................................. 12
3.4. Start-up Procedures.......................................................................... 12
4. Control System ......................................................................................... 13
4.1. Interface Description ........................................................................ 13
5. Troubleshooting ....................................................................................... 25
5.1. Common Fault Alarm Phenomenon and Measures ......................... 25
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1. Security Information
1.1. Symbol Description
Installation, operation, or maintenance of equipment before servicing, please
read the manual carefully and keep in mind. Other matters on the
information in this manual or equipment, the following symbols illustrate
messages may appear to warn of potential danger or attention.
Add this symbol indicates that fails to comply with the
instructions; there will be a risk of electric shock resulting in injury
to persons in the "Danger" or "Warning" safety label.
This is a safety alert symbol used to alert to potential personal
injury hazards. Follow all safety information with the symbol, to
avoid personal injury or death that may arise.
DANGER
DANGER indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING
WARNING indicates a potentially hazardous situation which, if not
avoided, can result in death or serious injury.
CAUTION
CAUTION indicates a potentially hazardous situation which, if not avoided,
can result in minor or moderate injury.
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NOTICE
NOTICE addresses practices not related to physical injury including certain
environmental hazards, potential damage or loss of data.
1.2. Operating Precautions
When using the device, read and observe the following operating
precautions. When handling refrigerant, observe all local and national
regulations.
DANGER
Electric shock, arc flash or explosion risk
•Use appropriate protective device for protection operation, and to
comply with norms electrician.
•Equipment should be installed and maintenance personnel with
innovative Itanium recognized relevant professional qualifications.
•Before installation, maintenance equipment, be sure to cut off all
power.
•Use the multimeter to measure; make sure the power is turned off.
•Before turning on the power, the final installation accessories to be
installed, such as a door, cover, fastening device and the like.
Or it can result in death or serious injury.
WARNING
Hazardous moving parts
•Note hands, clothing, and jewelry away from moving parts. Before
closing the doors and starting the device, check if a foreign body device.
Or it can result in death or serious injury.
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WARNING
Dangerous equipment or personnel
•Equipment should be installed and maintenance personnel with
innovative Itanium recognized relevant professional qualifications.
Or it can result in serious injury or equipment damage.
WARNING
The risk of tipping equipment
•There must always be at least two people moving or rotating device.
•Be sure to face the front and back of the device pushing, pulling or
rotation. Facing side of the device cannot be pushed, pulled or
rotated.
•Slowly moving the device through the uneven surface or threshold.
•When the device is stationary, supporting feet lower to the floor.
•When the device is in the final position, the lower supporting legs, and
with the adjacent cabinets securely.
Or it can result in serious injury or equipment damage.
CAUTION
Dangerous equipment or personnel
•Before operating the device, make sure that the equipment or device
inside the spare parts and tools has been removed.
Or it can result in serious injury or equipment damage.
CAUTION
High-pressure refrigerant or equipment damage
•Use only R410A refrigerant.
•Brass must support a minimum working pressure of 55 bar.
Or it can result in serious injury or equipment damage.
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2. Product Description
2.1. Product Composition
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FIG 2-1 Appearance (Left is front view, Right is rear view)
1. Outdoor fan (Air outlet)
2. Outdoor air inlet
3. Seal panel
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1
3
5
4
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Figure 2-2 internal view (different models have minor differences)
1. Outdoor fan
2. Condenser
3. Compressor
4. Electrical box
5. Indoor fan
6. Evaporator
Device Description
The compressor - the main role of the refrigeration system through the
evaporator for evaporating low pressure refrigerant gas compressed at room
temperature to a temperature high-pressure refrigerant gas, increasing its
temperature condensation into the (outer chamber) is liquid condensed in
the condenser. The key is the core component of the refrigeration system.
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High-voltage switch - after the refrigerant pressure in the system rises to a
certain value, high-voltage switching operation, the alarm is transmitted to
the controller.
High pressure sensor - detecting high side pressure of the refrigeration
system, and transmitted to the controller.
Filter drier - protection refrigeration systems, water filtration systems, solid
acid and impurities.
The expansion valve - valve electronic expansion valve, the refrigerant flow
rate regulator.
Evaporator - refrigerant evaporated inside the evaporator absorbs heat, gas
flow through the outer surface of the evaporator heat absorber is cooled.
Low pressure sensor - the low-pressure side refrigerant pressure detecting
system, and transmitted to the controller.
Fan - means for driving an air flow through the air conditioning cycle.
Controller - logic control center of the machine, the operation of the
automatic control equipment, alarms, details refer to the section controller.
Located outside the electrical box.
Touch screen - computer interaction window, only to see the equipment
running through the display, it can also be related to the setting operation.
2.2. Product Size
Table 2-1 Product size table
Product number Width (mm) Depth (mm) Height (mm)
DN-97330 600 1100 390
DN-97331 600 1100 521
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2.3. Envrionmental Requirements
Operating Envrionment
Table 2-2 Products Operating Environment
Project
Indoor side
Room outer side
Temperature
-10 °C ~ 55 °C
-20 °C ~ 45 °C
Humidity
20 % to 80 %
-
Altitude
Altitude <1 000 m
Greater than 1 000 m
Derating about 6 % / one thousand meters
Power supply
Single-phase or three-phase 380V 220 ~ 240VFrequency
50Hz ± 2HzOr 60Hz± 2H
Storage Envrionment
Table 2-3 Product storage environments
Project
Claim
Surroundings
A clean (no dust), well-ventilated
Temperature
-40 °C ~ +60 °C
Humidity
5 % RH ~ 95 % RH non-condensing
Duration
A total of not more than six months, more than six months
to be re-calibrated performance
3. Installation and Commissioning
3.1. Installation Preparation
Tools to prepare
Wrench, socket wrench, Phillips screwdriver, slotted screwdriver, diagonal
pliers, needle nose pliers, the word ladder, tape measure, flashlight, marker,
truck. Insulated gloves, wire strippers, insulating tape, crimping pliers, clamp.
Material preparation
Drain line, power supply cable.
Site Preparation
Mounting plate: air-conditioning sheet metal plate or rack load capacity is
enough to bear weight without deformation apparatus, distortion.
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Interior: smooth out of the wind inside the device, not within 300mm from
tuyere is blocked, the indoor side heat well, a good seal. Access to rear line
arrangement.
Outdoor: smooth out of the wind, far away from people stay. Outdoor wind
direction should not be opposite to the monsoon. If direct sunlight, should be
done protection. Prevent high temperature and humidity, dust, air enters the
device acid. Installation position and stay close to the obstacle distance of at
least 500mm. Ground clearance of not less than50mm.
Installation Guidelines
Equipment must be in good condition. Sealed from the outside.
3.2. Unpacking Inspection
Out of the box before check the packaging for damage, if there is damage,
please contact the carrier.
Carefully remove the packaging and check whether there are internal devices
scratches, impact, if any, please contact the carrier.
The packing list an inventory of accessories are complete, if not complete,
please contact the supplier.
- Remove the front and back packaging must ensure that the device
remains upright, not tilted or tipped over.
3.3. Device Installation
3.3.1. Mechanical Installation
1. The sealing inlet airflow port and outlet airflow port.
2. At the top of the cabinet, openings are made according to the size
and position of the air inlet and outlet in the air-conditioning room.
The air conditioner is installed at the top of the cabinet to be fixed.
Fasten with fasteners such as screws and nuts.
3. Drain connected to the drain assembly in the apparatus, the drain
connected to the drain drain assembly, with hose clamps firmly fixed,
and the other end to a suitable drain through the drain. If using
outdoors, you cannot take drain assembly and drainage pipes,
drainage equipment directly at the outfall.
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1
2
Figure 3-1 a schematic view of the installation
1. Supply air port
2. Return air port
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3.3.2 Electrical Installation
When electrical installation, note the following requirements:
1. All Power cord, connect the control line and ground must comply with
local regulations.
2. A full load operating current of the unit, check the unit nameplate. Cable
size should meet the electrical requirements.
3. The need to connect a cable is: power lines, signal lines.
4. Main power supply unit requires the same rated power and the
nameplate.
5. The cable can be selected only copper cable, wiring to ensure that all
connections are secure.
6. The electrical installation must be done by a professional electrical
installer.
7. Before connecting circuit, an input power source voltage, and the power
supply has been disconnected is determined with a multimeter.
After completion of the electrical installation, you need to check the
following:
1. Same rated supply voltage and the voltage on the rating plate.
2. The crew did not open electrical circuit, short circuit.
3. The ground cable connection device is connected.
4. The power supply circuit breaker and fuse rating to meet the needs of
the unit.
5. If the monitoring cable, check the monitor cable is connected.
6. Check all cables, connectors have been tightened, without loosening the
fixing screws.
3.4. Start-up Procedures
Upstream circuit breaker is closed air-conditioning, the controller start.
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4. Control System
4.1. Interface Description
Note: Screen is optional.
The program interface is divided into homepage, menu page, alarm page.
Figure 4-1 Home
Automatically enter the home page when you are on power. Or automatically
return to the home page if the interface is not operated for a long time.
(21:10/2018-03-24) Time/date. Show current date, you can change the time
in the clock Settings.
(Home/menu/alarm/boot) Menu options, click the corresponding option to
enter the corresponding menu page.
The "home page" option currently displays the embedded background mode,
representing the current page as the home page. Other pages are similar, and
the post is not repeated.
(Temperature 0.0 °C) shows that temperature sensors to detect real-time
temperature.
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(Humidity 0.0 %) shows the real-time humidity detected by humidity sensor.
(The unit state shutdown) shows the current operating state of the unit and
the "boot" state.
(Alarm) This will scroll to show all the current alarms.
(Censored) When there is an alarm, there will be a warning sound, click the
noise to eliminate the alarm sound.
(Operating state refrigeration and heat dehumidification humidifier) various
functional operation status.
Menu
Figure 4-2 Menu
You can enter the menu page at other page point menu.
(I/O) Click to enter the input output page, including all digital input output
information and analog quantity input and output information.
(User Settings) click to enter the user Settings page, including the parameters
set by the user.
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(Factory Settings) click to enter the factory Settings page, including all factory
Settings.
(Maintenance Settings) click to enter the maintenance Settings page,
including all maintenance Settings parameters.
Alarm
Figure 4-3 Current alarm
Under this menu, you can view all alarms that exist in the current unit.
(Trigger date) the exact date of the alarm.
(Trigger time) The timing of the alarm.
(Alarm content) Warning.
(Return) The return key is returned to the previous page.
(Next page) Page turn option, click to enter the history alarm page.
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Figure 4-4 History alarm
Under this menu, you can view all the uncleared alarms that have occurred
before the current crew.
(Serial number) Alarm number.
(Date) The exact date of the alarm.
(Time) The timing of the alarm.
(Alarm content) Alarm content.
(Return) The return key is returned to the previous page.
(Next page) Page turn option, click to enter the current alarm page.
(Clearance alarm) Click to clear all history alarms
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Input / Output 1
Figure 4-6 Input/Output 1
Under this menu, you can view the current unit number input state and
digital output status. When the output status of the device is blue, the device
is in the output state and the device is in a non-output state when the color is
gray. When the port input state is blue, the port is entered into a closed
state, and when the color is gray, the device is disconnected.
(Return) The return key is returned to the previous page.
(Next page) Page turn option, click to enter the input output 2 page.
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Input / Output 2
Figure 4-6 Input/Output 2
Under this menu, you can view the current unit simulation input and output
values.
(Temperature and humidity curve) Click to enter the temperature and
humidity curve interface.
(Pressure curve) Click into the pressure curve interface.
(Return) The return key is returned to the previous page.
(Previous page) Turn page option, click to enter the input output 1 page.
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Temperature humidity curve
Figure 4-7 temperature humidity curve
Pressure curve
Figure 4-8 pressure curve
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User settings
Figure 4-9 Enter password
Enter password “999900”. Enter the Settings page.
Figure 4-10 User
This manual suits for next models
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