Daikin LFSLHS0200AXV1 Specification sheet

COMMERCIAL REFRIGERATION SLIM UNIT COOLER
LOW TEMPERATURE
OPERATING AND
INSTALLATION MANUAL

TABLE OF CONTENTS
Page
1
Unit Information and Dimensions
1.1
Nomenclature
1
1.2
Product Features
1
1.3
Unit Dimension
2
1.4
General
2
2
Specification
2.1 General
3
2.2 Capacity Table
4
3
Unit Location and Mounting
3.1
Unit Location
4
3.2
Mounting
4
3.3
Drain Trap
5
4
Piping Installation
4.1
Refrigerant Pipe Connection
6
4.2
Vacuum and Leak test
6
4.3
Drain Pipe
6
4.4
Superheat
6
5
Electrical
5.1
Field Wiring
6
5.2
Earth Wiring
7
5.3
Wiring Diagram
8
6
Start-up
6.1
Pre-start up
9
6.2
Operation checkout
9
7
Preventative Maintenance
10
8
Troubleshooting Chart
10
9
Unit Decommissioning and Disposal
11

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1UNIT INFORMATION
1.1 Nomenclature
L
FS
LH
_
S
0200
A
_
X
V1
Power supply,
V1 –1ph/50Hz/220~240V;
Y1 –3ph/50Hz/380~415V
Special symbol.
Minor change revision.
Model change revision
Cooler nominal capacity in kW
0200 –2.0kW
Refrigerant:
P –R407C; Q –R410A; S –R404A
Special specification symbol, usually
omitted
Function symbol
MN –Medium Temp. evaporator without
heater ; MH –Medium Temp. evaporator
with heater; LN –Medium Temp.
evaporator without heater ; LH –Low
Temp. evaporator with heater;
Unit Category:
C –Unit can be installed indoor or outdoor;
R –Outdoor Unit; F –Indoor Unit; FS-
Indoor Slim Unit
Daikin low temperature refrigeration
appliances
-L
1.2 Product features
•Can be used with refrigerants R404A, R410A, R507A, R448A and R449A.
•To store food product which require strict environmental conditions for storage, suitable for
fresh meats & seafood etc.
•Unit can operate within -13oC ~ -28oC.
•¾” BSP drain fitting on indoor unit.
•DX evaporator coil, with shredder valve integrated into suction line for ease of superheat
measurement.
•Powder coated galvanized casing.
•IP54 Axial fan with moisture environment proof protected and built in thermal overload.
•Defrost heater provided.
•Pre-fixed wiring to fan motor.

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1.3 Unit Dimension
L(mm)
FL(mm)
W(mm)
H (mm)
LFSLHS0200AXV1
1381
1313
510
238
LFSLHS0300AXV1
1981
1913
510
238
1.4 General
Upon receive of the products,
1. Please ensure:
• The pipework should shows no signs of damage
•The fan/ fan motor terminal box are not cracked or showing signs of obvious damage
• The electrical screw terminals in control panels and motor mountings should be checked.
2. Product are only suitable for fix installation.
Product contains 4 bar±1bar holding charge (N2) when despatched from factory, the holding gas should
be safely released through the Schrader valve which integrated on the suction gas inlet header.
3. If the holding charge is not present, please do not use the product and contact the sales representative
immediately. (Manufacturer’s warranty is void for damage caused by incorrect application or unit mis-
handling)

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2SPECIFICATION
2.1 General
(a) Low Temperature
Model
LFSLHS0200AXV1
LFSLHS0300AXV1
Capacity
kW
2.0
3.0
Sound
Pressure Level
dB(A)
60
60
General
Power supply
(V/Ph/Hz)
220-240/1/50
220-240/1/50
Size L/W/H
(mm/mm/mm)
1381 x 510 x 238
1981 x 510 x 238
Weight (kg)
27.0
35.0
Room Temperature (oC)
-13 ~ -28
-13 ~ -28
Refrigerant
R404A/R410A/R507A/
R448A/R449A
R404A/R410A/R507A/
R448A/R449A
Max operating pressure
(Bar)
25
25
Fan
Fan Size
(mm x Qty)
300 x 2
300 x 3
Air Flow
( m3/h)
1350
2025
Fan Speed
(rpm)
1250
1250
Running current
(A)
0.54
0.81
Power Consumptions
(W)
70
105
Air Throw
Distance (m)
7
7
Finishing
Casing
Galvanized & Powder Coated
Galvanized & Powder Coated
Color
White
White
Connection
Pipe Size
(OD)
Outlet (mm)
15.88
19.05
Inlet (mm)
12.7
12.7
* Capacity based on running condition of R404A at TAir In = -18oC, Evaporating temperature, Te= -25oC. TD=7K,
Temperature Difference, TD = TAir In - Te
*Nominal capacities are given accordance EN 328 Standard Condition.
* Sound Pressure Level is measured at 1m away from every side of the unit and 1m below fan center line,
inside Anechoic sound room.
* Air Throw is measured based on a final velocity of 0.4m/s.
* Design and specifications are subject to change without notice.

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2.2 Capacity Table
(a) Low Temperature
Refrigerant
R404A
Te
Model
-35
-30
-25
-20
LFSLHS0200AXV1
1.57
1.74
2.00
2.40
LFSLHS0300AXV1
2.34
2.67
3.00
3.33
Capacity Factor
Refrigerant
Model
R404A
R410A
R507A
R448A
R449A
LFSLHS0200AXV1
1.0
1.1
0.95
1.0
1.0
LFSLHS0300AXV1
1.0
1.1
0.95
1.0
1.0
*DT1=7K
DT1=Air inlet temperature (Ta) - evaporating temperature at the outlet (Te)
The nominal capacity according to EN 328 and calculated with refrigerant R404A.
For different refrigerants shall be referred to the table of Capacity Factor.
TD CORRECTION FACTOR
TD(K)
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
Correction
Factor
0.64
0.71
0.79
0.86
0.93
1.00
1.07
1.14
1.21
1.29
1.36
3 UNIT LOCATION AND MOUNTING
3.1 Unit Location
Unit coolers must be located atplacesthatprovide good air circulation; otherwise the performances of the
unit cooler could be compromised. For best performance, it is desirable to arrange the air discharge
blowing toward the door to minimize the entrance of warm moist air when door is open. Light fixtures,
shelving and product boxes must be located in a manner whereby they do not block the air intake and air
discharge from the unit cooler.
IMPORTANT:
•Installation are to be performed only by qualified personnel who are familiar with local codes
and regulations, and experienced with this type of refrigeration unit cooler.
•The fan face must be located a minimum of 600mm (H) from walls to assure unrestricted air
intake.
•Side clearance should be reserved so that service work can be carried out.
3.2 Mounting
Unit coolers designed for ceiling mounted type and come with mounting holes that can be fixed with the
use of common M10 bolts and nuts. The unit must be installed in a level manner, to ensure water
condensation can be properly drain out.
IMPORTANT:
•Ensure that the ceiling is able to withstand the unit weight and that all fixings are secure.

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3.3 Drain Trap
Drain pipes and traps must be at least same diameter as the drain fitting connection. See page 3 for details.
Drain pan must be leveled to permit condensation from coil drain freely for the suitable depth and distance
of drain trap installation.

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4 PIPINGINSTALLATION
4.1 Refrigerant pipe connection
Refrigerant pipe connections should be installed in accordance with all the applicable codes and using good
refrigeration practices. Suction lines should be properly insulated to prevent sweating and ensure only
superheated vapor is returned to compressor suction. During brazing, the system should be purged with
nitrogen first, to prevent oxidation.
Use of incorrect pipe sizes can affect system pressure/temperatures and gas velocity for proper oil return.
See page 3 for details.
4.2 Vacuum and leak test
When all refrigeration piping connections had been completed, the entire system must be tested for leaks
and then vacuum. Refer to the instruction manual provided by the coupled condensing unit for the leak test
and vacuum test information.
4.3 Drain pipe
Installing a trap is required for trouble free operation. If unit cooler is operated without the drain trap,
warm air with higher temperature will draw from outside to the cold room. Thus, warm air will
significantly reduce the cooler capacity and may lead to ice formation in the drain pan.
If the temperature surrounding the drain line and trap is below freezing (0oC), it must be wrapped with a
drain line heater and insulation until out of wall of the cool room. Be sure to wrap the drain pan coupling
too. Make sure the drain line is clear to prevent drain line plugged and overflow.
4.4 Superheat
Check suction superheat and adjust expansion valve to prevent liquid flood back to the compressor.
Recommended 5K to 20 K for suction superheat.
**Remarks: Expansion valve is not factory pre-fitted.
5 ELECTRICAL
5.1 Field wiring
Field wiring should comply with local codes. The power supply voltage, phase and frequency must
match what is shown on the unit cooler data plate.
The wiring diagram for each unit is located on the inside of the control box. The unit must be
grounded.

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Heater slot available for defrost heaters and it had been inserted into the lower of cooling coil. It is advised
to install thermal fuse (supplied by site) when the unit is used with defrost heater. The location of the
thermal fuse should be appropriately located to have safety cut off when the heater is overheated.
5.2 Earth Wiring
Units must be earthed and no maintenance work should be attempted prior to disconnecting the electrical
supply. Installation of earth wire should be made to earth screw before connecting the live wires. The earth
wire shall be slacked with longer length as shown in below diagram.
WARNING
Please check electrical safety (leakage current, withstand voltage, earth continuity) after connected
to heaters, fuse, and timers.
Heater
Location

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5.3 Wiring Diagram
(a) LFSLHS0200AXV1

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(b) LFSLHS0300AXV1
6 START UP
6.1 Pre-start up
After the installation is completed, a review of the following items should be performed before the
system is placed into operation:
Check electrical connections, fan motors, grills and all other fasteners for tightness. Be sure the
thermostatic expansion valve bulb is properly located, strapped and insulated.
With the system operating, check the supply voltage. It must be within +/- 10% of the voltage marked
on the unit nameplate.
6.2 Operation Checkout
A defrost cycle is needed when the frost build up is such that is impedes the airflow through the coil.
The defrost requirements will vary on each installation and may change depending on the time of the
year and other conditions.

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Check the drain line and make sure drain line is clear and unit is aligned in all position to avoid overflow
of condensation water.
7 PREVENTATIVEMAINTENANCE
A preventative maintenance schedule should be set up as soon as the Unit Cooler is installed. The unit
should be inspected periodically for proper operation and buildup of dirt.
1. Inspect and clean the drainpan to ensure there is no blockage. The drain pan should be cleaned
regularly with warm water and neutral detergent.
2. The cabinet can be cleaned with water and neutral detergent. DO NOT clean the fans and fins using a
water jet or high-pressure cleaner.
3. The evaporator coil should be checked once a month for proper defrosting. Many variables
affect coil
frosting such as room temperature, type of product being stored, how often new product is brought in
and the length of time the door to the room remains open. Summer conditions of high humidity can
cause heavier frost loads. It may be necessary to change the numbers of defrost cycles seasonally.
4. At least every six months check all fan motors. Tighten motor mounting screws and fan set screws.
8 TROUBLESHOOTING CHART
Table 1: TROUBLESHOOTING CHART
PROBLEM
POSSIBLE CAUSES
CORRECTIVEACTION
Excessive buildup of
frost on coil.
Defrost time is too short.
Too high humidity in room.
Extend defrost time on timer.
Limit access to cooler; do not
keep doors open during stocking.
WARNING
Please be aware that during electric defrost; the temperature of surrounding may rise dramatically.
Kindly keep a safety distance away from the unit.
WARNING: All power must be disconnected before cleaning.

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Accumulation of ice or
water in drain pan.
Drain line plugged.
Drain pipe does not have slope
angle.
Indoor unit not align or install
in level at all directions.
Drain line does not have drain
trap.
Clean drain line. Make sure drain
line is insulated properly.
Install the drain line with slope.
See page 5 for details.
Check unit installation and align
the unit level at all directions.
Install drain line trap.
Noise
Resonance on the vibrating
mounting parts.
Vibration of fan or fan
mounting misaligned.
Fix the position of vibrating part
correctly.
Fix the position of fan correctly;
replace if defective.
Room temperature too
high/ not cold
Room thermostat defect.
Insufficient or no refrigerant
supply to evaporator.
Frost build up on evaporator
coil.
Defrosting too frequent.
Wrong combination of unit:
-Unit cooler is too big against
to outdoor unit.
-Unit cooler is too small against
to cooling load.
Check thermostat setting and
replace if any.
Check sensor location.
Investigate cause (leakage, choking,
etc.), repair fault and charge
system if necessary.
Defrost the coil and clean the frost.
Reduce defrost cycle frequency.
Review and reselect the unit
combination.
9 UNIT DECOMMISSIONING AND DISPOSAL
At the end of the system’s useful life, a suitably qualified engineer or serviceman should
decommission it. The refrigerant and compressor oil are classed as hazardous waste and as such must
reclaimed and disposed of in the correct manner, including completion of waste transfer paperwork.
The system components must be disposed or recycled as appropriate in the correct manner.

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