LY Series Monoblock Refrigeration Freezer Condensing Unit
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Specifications:
- Type: LY030, LY050, LY075, LY100, LY150, LY200
- Refrigerant: R404A
- Compressor: TECUMSEH piston compressor
- Power Supply: Single phase 220V~240V/1/50Hz
Product Usage Instructions:
Safety Precautions:
Ensure the unit is properly grounded and installed by a
technician. Follow these safety precautions:
- Turn off the unit before servicing
- Avoid putting hands near the fan
- Do not fire the unit
- Avoid covering the air outlet or blocking the drain pipe
Unit Introduction:
The LY series unit is equipped with a unitary refrigeration
system with an air-cooled condenser. Some key features include:
- Easy installation similar to a window-type air conditioner
- Silencing technology for reduced noise
- Tilt type condenser for a smaller outline size
- Anti-corrosion case for durability
- Environmentally friendly with R404A refrigerant
- Automatic defrosting cycle system for easy operation
Installation:
Installation can be straddle-wall or through-wall. Follow these
steps:
- Cut a hole in the wall according to the drawing
- Place the unit in the hole and secure with bolts
- Wire the refrigerator lamp and plug it into the socket
Operation:
Before operating the unit, ensure that it is correctly installed
and connected. Follow these steps:
- Check the installation and connections
- Ensure power cable and ground wire are connected reliably
FAQ:
Q: Can this unit be used without professional
installation?
A: It is recommended to have a technician install the unit to
ensure proper operation and safety.
Q: What refrigerant does this unit use?
A: The unit uses R404A refrigerant.
Q: How can I adjust the expansion valve?
A: The removable shell of the unit makes it easy to adjust the
expansion valve.
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OPERATION MANUAL
TYPE: LY030, LY050, LY075, LY100, LY150, LY200
To guarantee the operation of the unit correctly and safely, please read the manual carefully before using. Please ensure technician to install the unit to keep the unit running properly. The unit must be earthed reliably.
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SAFETY PRECAUTION
Caution
ELECTRIC SHOCK HAZARD *THE UNIT MUST BE GROUNDED *TURN OFF BEFORE SERVICING *ELETRIFY AFTER WIRING INJURY HAZARD DO NOT PUT HAND TO THE FAN EXPLOSION OR FIRE HAZARD *DO NOT FIRE THE UNIT. *KEEP THE REFRIGERANT OF SYSTEM UNDER PRESSURE *USE ONLY APPROVED REFRIGERANT OTHERS *DO NOT COVER THE AIR OUTLET *DO NOT BLOCK THE DRAIN PIPE
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UNIT INTRODUCTION
LY series Unit is all equipped with unitary refrigeration unit with air cooling condenser.It can be directly applied without debugging by customer.
The unit is installed by piston compressor of TECUMSEH with R404A refrigerant.
Major advantage:
A. Optimization design:The same installation as window type air conditioner.Just making a square hole on the wall and install it directly,which can save 60% installation time.
B. Silencing technology:The unit adopts hermetic air cooling condenser,fan blade use big tilt angle and pit indent silencing technology which make the structure compact as well as saving the energy and reducing the noise.
C. Adopt tilt type condenser which can make the outline size smaller.
D. Anti-corrosion case:The unit uses galvanization steel with high anti-corrosion layer under strictly salt moisture testing,which enable the unit to bear environment.
E. Well-chosen components:Main heavy of the unit are used “Danfoss”brands, such as,filter drier and expansion valve with high reliability.
F. Environment friendly:Unit is equipped with single phase hermetic piston compressor with R404A refrigerant
G. Easy operation:It is equipped with automatic defrosting cycle system. Therefore it can be adjusted with customer’s requirement.Defrost frequency periodic and can be controlled by electric controller.In addition,it can use manual defrost by hot gas.
H. Optimization design can integrate the unit.It can make it easy to install debugging and can reduce the rig-up time and installation cost.
I. The removable shell make it easy to adjust the expansion valve.
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MODEL IDENTIFICATION
LY: Integrated unit LY × × × × × X
Design serial NO.:A······Z Shell type:Default:Monobloc
S:Monobloc (Split system) Back pressure:M/H:Middle/High back pressure,
Evaporating Temp:-15~+5; L: Low back pressure,
Evaporating Temp:-30~-10 Refrigerant:F:R22,G:R404a,Z:407C,N:R134a Voltage Code:D:single phase 220V~240V/1/50Hz;
S:three phase 380V~415V/3/50Hz; C:single phase 208V~230V/1/60Hz; R:three phase 400V~460V/3/60Hz; Nominal capacity:HP×100 LY:Stand for “ESSENTEC”Monobloc
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WIRING DRAWING OF UNIT PRINCIPLE DIAGRAM
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Installation
Straddle-wall and through-wall
Requirements for installation Demand a wall at least width 80CM
1. Preparation Cut a hole on the wall in accordance with the drawing. 2. Installation
Put the unit on the hole by the drawing, and fix the bolt on the wall. 3. Wiring the refrigerator lamp. 4. Put the plug to the socket.
Straddle-wall
Through-wall
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Operation
1. Check before operation Check the unit,make sure that the unit has been installed correctly,the power cable
and the ground wire connected reliably. This unit with refrigerant.
1.1. PLEASE READ BEFORE USING THIS MANUAL This manual is part of the product and should be kept near the instrument for easy
and quick reference. The instrument shall not be used for purposes different from those described
hereunder.It cannot be used as a safety device. Check the application limits before proceeding.
1.2. SAFETY PRECAUTIONS Check the supply voltage is correct before connecting the instrument. Do not expose to water or moisture:use the controller only within the operating.
2. Power on After power on,the digital controller will display
currentroom temperature.One minute delay,the compressor working,while indicator on.When evaporator temperature under 30,the evaporator fan working,while “” indicator on.
3. Base operation Y+ To lock &unlock the keyboard SET+V To enter in programming mode. SET+To return to the room temperature display
3.1. How to change the room temperature Push the SET key for more than 2 seconds to change the Set point value; The value of the set point will be displayed and the LED starts blinking; To change the set value push the up or down arrows within 10s. To memories the new set point value push the SET key again or wait 10s. Then press “SET+DOWN”more than 3 seconds and set HY.The range of room temperature is “SET””SET+HY”
3.2. HOW TO START A MANUAL DEFROST Push the DEF key for more than 2 seconds and a manual defrost will start.
3.3. How to set defrost cycles Press”SET+DOWN”more than 3 seconds and set ID.(099h)
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Determines the time interval between the beginning of two defrost cycles.
We advise customer to set the figure according room circumstance, such as
humidity,room temperature and so on.
ADD1.DEFAULT SETTING VALUES
LABEL
DESCRIPTION
REGULATION
SET
Hy Differential
LS Minimum Set Point
US Maximum Set Point
ot First probe calibration
P2 Second probe presence
oE Second probe calibration
od Outputs activation delay at start up
AC Anti-short cycle delay
Cy Compressor ON time faulty probe
Cn Compressor OFF time faulty probe
DISPLAY
CF Measurement units
rE Resolution(only for )
Ld Default Display
dy Display delay
DEFROST
td Defrost type
dE Defrost termination temperature
id Interval between defrost cycles
Md Maximum length for defrost
dd Start defrost delay
dF Display during defrost
dt Drip time
dP Defrost at power-on
FANS
FC Fans operating mode
Fd Fans delay after defrost
FS Fans stop temperature
ALARMS
AU Maximum temperature alarm
AL Minimum temperature alarm
Ad Temperature alarm delay
dA Exclusion of temperature alarm at startup
DIGITAL INPUT
iP Digital input polarity
iF Digital input configuration
di Digital input delay
dC Compressor and fan status when open door
rd Regulation with door open
OTHER
d1 Thermostat probe display
d2 Evaporator probe display
Pt Parameter code table
rL Firmware release
Note:() Are the low back units’ sets.
RANGE
0.1÷25/1÷45°F -55+SET/-67F÷SET SET÷99/SET÷210°F -9.9÷9.9/-18÷18°F
n-Y -9.9÷9.9/-18+18°F
0÷99 min 0+50 min 0÷99 min 0÷99 min
-F dE-in P1-P2-SP 0+15min
EL-in -50+50/-58÷122F
0÷99 hours 0÷99 min. 0+99 min. rt-in-SP-dF 0÷99 min
y-n
cn-on-cY-oY 0÷99 min
-50+50/-58+122°F
ALL+99/ALL+210°F -55+ALU/-67°F÷ALU
0+99 min 0÷99 min
cL-oP EL-bL-dr-dF-Li-db
0+99 min no /Fn/cP/Fc
n-Y
Read Only Read Only Read Only Read Only
DEFAULT
2(-18) 2.0 -10(-40) 30
0.0 y 0.0 1 4 15 30
dE P1 0
In 12
3 20 0 dF 5 N
On 2 40°C
50 -50
15 90
oP BA 0 FC Y
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CA Alarm Trouble Shooting The direct reason for CA alarm is high pressure switch or low pressure switch entering protection mode.
No. Description Cause
Treatment
1
High pressure switch or Low pressure switch failure
slightly hit with rubber hammer or replace the High pressure switch
2
The controller wire connection#9 or or#11 is not well connected
Tighten the wire connection
3
Gas leak
CA alarm
1. Check the pressure 2. Find the pin hole or leakage
point,repair it then vacuum the system and recharge gas
1. Check the evaporator whether
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Evaporator frozen
it is frozen; 2. Manual melt the ice and
clean,then restart.
1. Fan motor does not rotate or
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Evaperator fan motor failure
the speed is visibly slow. 2. The fan motor is frozen,or
need to replace the fan motor
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Documents / Resources
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Danfoss LY Series Monoblock Refrigeration Freezer Condensing Unit [pdf] Instruction Manual LY030, LY050, LY075, LY100, LY150, LY200, LY Series Monoblock Refrigeration Freezer Condensing Unit, Monoblock Refrigeration Freezer Condensing Unit, Refrigeration Freezer Condensing Unit, Freezer Condensing Unit, Condensing Unit |