Daikin LFSLHS0200AXV1 Scheda tecnica

COMMERCIAL REFRIGERATION SLIM UNIT COOLER

LOW TEMPERATURE

OPERATING AND

INSTALLATION MANUAL

TABLE OF CONTENTS

Page

Unit Information and Dimensions

1.1

Nomenclature

1.2

Product Features

1.3

Unit Dimension

1.4

General

Specification

2.1 General

2.2 Capacity Table

Unit Location and Mounting

3.1

Unit Location

3.2

Mounting

3.3

Drain Trap

Piping Installation

4.1

Refrigerant Pipe Connection

4.2

Vacuum and Leak test

4.3

Drain Pipe

4.4

Superheat

Electrical

5.1

Field Wiring

5.2

Earth Wiring

5.3

Wiring Diagram

Start-up

6.1

Pre-start up

6.2

Operation checkout

Preventative Maintenance

Troubleshooting Chart

Unit Decommissioning and Disposal

0-UC 12-SEP 17-1 Page 1

1UNIT

INFORMATION

1.1 Nomenclature

0200

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.

0-UC 12-SEP 17-1 Page 2

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)

0-UC 12-SEP 17-1 Page 3

2SPECIFICATION

2.1 General

(a) Low Temperature

Model

LFSLHS0200AXV1

LFSLHS0300AXV1

Capacity

2.0

3.0

Sound

Pressure Level

dB(A)

General

Power supply

(V/Ph/Hz)

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

Refrigerant

R404A/R410A/R507A/

R448A/R449A

R404A/R410A/R507A/

R448A/R449A

Max operating pressure

(Bar)

Fan

Fan Size

(mm x Qty)

300 x 2

300 x 3

Air Flow

( m3/h)

1350

2025

Fan Speed

(rpm)

1250

Running current

(A)

0.54

0.81

Power Consumptions

(W)

105

Air Throw

Distance (m)

Finishing

Casing

Galvanized & Powder Coated

Color

White

Connection

Pipe Size

(OD)

Outlet (mm)

15.88

19.05

Inlet (mm)

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.

0-UC 12-SEP 17-1 Page 4

2.2 Capacity Table

(a) Low Temperature

Refrigerant

R404A

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

LFSLHS0300AXV1

1.0

1.1

0.95

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.

0-UC 12-SEP 17-1 Page 5

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.

0-UC 12-SEP 17-1 Page 6

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.

0-UC 12-SEP 17-1 Page 7

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

0-UC 12-SEP 17-1 Page 8

5.3 Wiring Diagram

(a) LFSLHS0200AXV1

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