Cubigel DL19H User manual

USER MANUAL
12-24V DC
COMPRESSORS
Compressors for mobile applications
12 • 24V Direct Current Compressor
DL19H · DL22H · DL30H
DC Compressors
More Compact
Easy to install
New electronic driver
Speed range 1200 to 4000 rpm

INDEX
1. About the product
Many vehicles for transportation of goods or recreation, such as trucks, caravans, boats, cars, etc. are often
equipped with cooling appliances. The compressors for such mobile applications must be designed to
operate from a low voltage DC power supply. These compressors must also be compact in their
dimensions, highly reliable and yield high performances.
DL19H, DL22H and DL30H are Cubigel Compressors®’s answer to the needs of users requiring comfort
and reliability in their travelling, either on holidays, at work or in any other circumstance where a DC
powered refrigerator is utilized. These compressors are designed to operate silently, efficiently and reliably
even up to angles of tilt of 30º, working with refrigerant R134a.
DL series compressors are not designed for off-road mobile applications. If you are interested in this type of
mobile applications, it has to be specifically approved by Huayi Compressor Barcelona. The maximum tilt
angle allowed in DL compressors (stopped or running) is 30º.
DL19H, DL22H and DL30H can be powered at any voltage within the 12 to 24V DC range, and are
designed for capillary tube expansion.
Evaporation temperature range: -35ºC to +10ºC.
Condensation temperature range: up to 65ºC (Pull-down peak: 70ºC).
Ambient temperature range: -10 to 60ºC
Consumption of the electronic driver when the compressor is stopped: 0.5W.
In case of ambient temperature lower than 0ºC, an oil heater will be needed.
1. About the Product
2. Electronic Driver controller through resistance
2.1. General rules and wiring connections
2.2. Operating voltage
2.3. Temperature Switch
2.4. Battery protection system
2.5. Protections and alarms
3. Electronic Driver controller through ECM (Serial Mode)
3.1. General rules and wiring connections
3.2. Functional Mode

2. Electronic Driver controlled through
resistance
2.1. General rules and wiring connections
Voltage drop in the power leads
To avoid excessive voltage drop in the leads, their length and cross section must be related to the voltage
supply as indicated in Table 1.
2.5 2.5 5
4 4 8
6 6 12
10 10 20
Cross section Operating Range
mm Length (m)
12V 24V
Table 1
DL series must always be powered through the dedicated electronic driver, which is supplied with the
compressor as a separate device.
NEVER CONNECT THE COMPRESSOR’S HERMETIC PINS (FUSITE) TO THE TERMINALS OF A
BATTERY OR ANY OTHER DC OR AC SOURCE DIRECTLY.
DO NOT TRY TO FIT AN ELECTRONIC DRIVER DIFFERENT THAN THE ELECTRONIC DRIVER
SUPPLIED WITH THE COMPRESSOR. THE COMPRESSOR WILL NOT OPERATE AND IRREVERSIBLE
DAMAGE MAY OCCUR.
ALWAYS RESPECT THE POLARITY OF THE BATTERY WITH THE POWER INPUT TERMINALS OF
THE ELECTRONIC DRIVER
“-“ POWER INPUT TERMINAL OF THE ELECTRONIC DRIVER SHOULD BE REFERRED TO THE
CHASSIS OF THE VEHICLE AS WELL AS THE APPLIANCE FRAME
A FUSE MUST BE PLACED BETWEEN THE “+” POLE OF THE BATTERY OR DC POWER SUPPLY AND
THE “+” POWER INPUT TERMINAL OF THE ELECTRONIC DRIVER:
12V SYSTEMS: 12A FUSE
24V SYSTEMS: 7.5A FUSE
2

Wiring Diagram
The electronic driver features a terminal board where all connections are made. The terminal lay out is
described in Figure 1:
External Fan
Fig. 1. Wiring scheme
As shown in Figure 1. (5), the positive side of the fan is connected to the (F +) end of the controller, and the
negative terminal of the controller is connected to the (F-) terminal of the controller. A terminal of the
controller (F +) and (F-) can be connected with a 12V DC fan The When the input voltage of the controller
exceeds 12V, the output value between the terminals (F +) and (F-) is always kept at 12V.
Regardless of whether the input voltage system is 12V or 24V, the fan must be a 12V DC fan. B, the
controller can continue to output 0.5A fan drive capability.

2.2. Operating voltage
DL series are designed to operate in a wide range of DC voltages, supplied either by a battery or by any
other kind of filtered DC power supply.
DC VOLTAGE SUPPLY ALLOWED: 9.6V to 31.5V
Operating Voltage Setting Table
2.3. Temperature Switch
The temperature switch (7) connected to C and T pins, if not connect any resistance in the middle;
compressor running speed will be 2000rpm. Table 3 shows the compressor running speed according to the
resistance value connected between pins C and T.
0 9.6 10.9 17.0 21.3 22.7 31.5
1.6 9.7 11.0 17.0 21.5 22.9 31.5
2.4 9.9 11.1 17.0 21.8 23.2 31.5
3.6 10.0 11.3 17.0 22.0 23.4 31.5
4.7 10.1 11.4 17.0 22.3 23.7 31.5
6.2 10.2 11.5 17.0 22.5 23.9 31.5
8.2 10.4 11.7 17.0 22.8 24.2 31.5
11.0 10.5 11.8 17.0 23.0 24.5 31.5
14.0 10.6 11.9 17.0 23.3 24.7 31.5
18.0 10.8 12.0 17.0 23.6 25.0 31.5
24.0 10.9 12.2 17.0 23.8 25.2 31.5
33.0 11.0 12.3 17.0 24.1 25.5 31.5
47.0 11.1 12.4 17.0 24.3 25.7 31.5
82.0 11.3 12.5 17.0 24.6 26.0 31.5
220.0 9.6 10.9 17.0 21.3 22.7 31.5
24V High
pressure
stop value
V
External
resistance
KΩ
12V Stop
value
V
12V Boot
value
V
12V High
pressure
stop value
V
24V Stop
value
V
24V Boot
value
V
Table 2
Compressor
speed
(rpm)
C/T
Resistance
Ω
C/T
Current
mA
Compressor
speed
(rpm)
C/T
Resistance
Ω
C/T
Current
mA
2800 490 3.4
2900 586 3.2
3000 692 3.0
3100 816 2.8
3200 963 2.6
3300 1137 2.4
3400 1331 2.2
3500 1523 2.0
2000 0 5.0
2100 51 4.8
2200 100 4.6
2300 150 4.4
2400 200 4.2
2500 277 4.0
2600 330 3.8
2700 400 3.6
Table 3

2.4. Battery protection system
There is a protection system for the battery that prevents the compressor from operating if the available
voltage becomes too low. The electronic driver determines the stop compressor and restarts the
compressor by detecting the voltage between the input terminals (+) and (-) to protect the different power
supply batteries.
The standard battery protection settings recommended value in Table 3; other voltage can be set by
adjusting the controller terminal (C) and (P) connection resistance (9), the specific value of Table 3.
2.5. Protections and alarms
DL series are electronically protected against a number of possible malfunctions and failures. As shown in
Figure 1:
The controller terminal (+) and (D) can be connected between a 10mA LED (6) for the display fault, LED
anode connected to the controller (+) side, the cathode connected to the controller (D) end.
When the failure occurs, LED every 3 seconds for the cycle, continuous flash in each cycle, according to
different failures flash different times, each flashing for 0.4 seconds, continuous flashing for 3.2 minutes.
The number of specific codes and blinks is shown in Table 4.
10.4 11.7 22.8 24.2
12V Cut-out
(V)
12V Cut-in
(V)
24V Cut-out
(V)
24V Cut-in
(V)
Table 4. Limits of battery protection parameters
Nº of blinks Fault type
Voltage fault - The input voltage is outside the set range
Fan current fault - fan current output current greater than 1A
Compressor start fault - compressor motor stall or system pressure too large
Compressor minimum speed fault - The compressor is overloaded or the motor speed is too small.
Controller temperature fault - controller housing temperature too high (> 85 ° C)
Controller hardware failure - The controller has detected an abnormal parameter
1
2
3
4
5
6
Table 5. Alarm codification

3. Electronic Driver controller through ECM
(Serial Mode)
DL series must always be powered through the dedicated electronic driver, which is supplied with the
compressor as a separate device.
NEVER CONNECT THE COMPRESSOR’S HERMETIC PINS (FUSITE) TO THE TERMINALS OF A
BATTERY OR ANY OTHER DC OR AC SOURCE DIRECTLY.
DO NOT TRY TO FIT AN ELECTRONIC DRIVER DIFFERENT THAN THE ELECTRONIC DRIVER
SUPPLIED WITH THE COMPRESSOR. THE COMPRESSOR WILL NOT OPERATE AND IRREVERSIBLE
DAMAGE MAY OCCUR.
ALWAYS RESPECT THE POLARITY OF THE BATTERY WITH THE POWER INPUT TERMINALS OF
THE ELECTRONIC DRIVER
“-“ POWER INPUT TERMINAL OF THE ELECTRONIC DRIVER SHOULD BE REFERRED TO THE
CHASSIS OF THE VEHICLE AS WELL AS THE APPLIANCE FRAME
A FUSE MUST BE PLACED BETWEEN THE “+” POLE OF THE BATTERY OR DC POWER SUPPLY AND
THE “+” POWER INPUT TERMINAL OF THE ELECTRONIC DRIVER:
12V SYSTEMS: 12A FUSE
24V SYSTEMS: 7.5A FUSE
The Electronic Driver use UART communication program with thermostat which through the input power
negative (-), positive (+) and D terminal three wire connection thermostats to achieve bidirectional data and
to control the temperature.
3.1. General rules and wiring connections
Voltage drop in the power leads
To avoid excessive voltage drop in the leads, their length and cross section must be related to the voltage
supply as indicated in Table 6.
2.5 2.5 5
4 4 8
6 6 12
10 10 20
Cross section Rated
Operating Range
mm Length (m)
Table 6
2
12V 24V

Wiring Diagrams
The electronic driver features a terminal board where all connections are made. The terminal layout is
described in Figure 2:
1. +/- pins are the DC input of 6.3: connect the negative pole and the positive pole respectively
2. F+, F- pins are the Fan output of 6.3: connect to fan of DC 12V
3. D pin is the data communication interface, transmitting the data between the thermostat and the
compressor controller
4. C pin is the control ground wire COM after being protected by reverse connection (Reverse connection
protection function)
5. P pin is set for the controller power input protection (the port is not used in this scheme)
6. T and C pins are access to temperature probe
3.2. Functional mode
Under this mode, variable speed is controlled by an Electronic Integral Manager of the appliance (EIM)
permanently connected to the electronic driver through the D terminal, using its serial communication
capabilities. The EIM reads the actual temperature inside the appliance, compares it with the set point
temperature, and decides if the compressor should operate or not, and if so, at which speed. The EIM
communicates how the compressor should operate and, eventually, records any abnormal circumstance
that might occur. For details about the communication protocol, please, contact Huayi Compressor
Barcelona S.L.
Compressor speed controlled through Serial Mode

www.huayicompressor.es
DC COMPRESSORS USER MANUAL 12/2019
Huayi Compressor Barcelona, S.L.
c/ Antoni Forrellad 2, · 08192
Sant Quirze del Vallés · Spain
Phone: [phone]