JL MARINE & ENGINEERING PTE LTD

NO 3 GUL DRIVE SINGAPORE 629455 DWG NO: JL1324-PROVD

Tel:(65)65587079 Fax:(65)65587098
Company Email: Jlmarine@jlmarine.com.sg
Website: www.jlmarine.com.sg Sheet 00 f 35 Sheets

Drawing Title: Project No:

JL1324/JL1325
PROVISION REFRIGERATION SYSTEM Approved By George Foo 2013-05-20
Checked By T.C.Q 2013-05-20
Designed By David Chen 2013-05-20
Project Title: Builder
83 M PLATFORM SUPPLY/OIL JINGJIANG NANYANG SHIPYARD
RECOVERY/SAFETY STANDBY VESSEL
HULL NO: POET 1456/1457

Rev No. Symbol Date Contents Signature

Z 2013-05-20 As-built Plan David Chen

JL MARINE Doc No: JL1324-PROVD-000, Rev: Z

List of drawing content

Rev.
S/No Dwg/Doc No Dwg/Doc Title Pages
No

1 JL1324-PROVD-000 List of Drawing Contents Z 1

Provision Refrigeration system

2 JL1324-PROVD-001
description
Z 5

3 JL1324-PROVD-002 Heat Load Calculation Z 3

Refrigeration Piping Schematic

4 JL1324-PROVD-003
Diagram
Z 1

5 JL1324-PROVD-004 Condensing Unit Details Z 6

7 JL1324-PROVD-005 Fan Coil Unit Z 2

8 JL1324-PROVD-006 Valve Control Panel Diagram Z 1

9 JL1324-PROVD-007 Air Cooler Arrangement Z 1

10 JL1324-PROVD-008 Spare Part List Z 2

Provision Refrigeration Control

11 JL1324-PROVD-ELE-001
Diagram
Z 10

12 JL1324-PROVD-ELE-002 Digital Temperature Control Panel Z 2

JL1324-PROVD-ELE-003 Z 1
13 Man Lock-in Alarm Panel

Page 1 of 1
JL MARINE Doc. No: JL1324-PROVD-001, Rev: Z

Specification of Provision Refrigeration System

1.) Technical Specifications for Provision Plant

The Provision Condensing Unit for provision stores is specifically designed

exclusively for marine use with sea water-cooled condenser. Factory engineered
and assembled to ensure a perfectly balanced refrigeration system. These compact
units require minimum labor for installation at site.
The refrigeration system consists of two (2) condensing units. Each condensing
unit will be capable of maintaining the specified temperature at full load no more
than 18 hours per day .the other unit acts as stand by.
Both units are to be in service during cooling down period to the specified
temperature for 24 hours or less.
The refrigeration machine works automatically with direct expansion on R404A
refrigerant. The refrigerating chambers will be cooled by means of unit cooler and
will maintain automatically at specified temperature. Defrosting system will be
provided for freezer room unit cooler with electric heaters in coil, drain pan and
drain pipe. It will be controlled automatically by defrost timer or manually
operated.

2.) Safety devices provided with Condensing Unit.

S/ Safety Devices Cut In Press. Cut Out Press. Remarks

no
1 High pressure switch Manual reset 20 Kg/cm2 KP 5

2 Low pressure switch 1.2 Kg/cm2 0.1 Kg/cm2 KP 1

3 Water pressure switch >0.5 Kg/cm2 0.5 Kg/cm2 Penn

4 Pressure Relief Valve OEM setting:27.5Kg/cm2

Note: Above setting value is subject to adjust as per operation conditions.

3.) Storage capacity and temperature of each cold chamber are as follows

S/no Compartment Temperature Volume(m3 ) Cooler type

1 Freezer room -200C Abt. 25 Unit Cooler
2 Chiller room +40C Abt. 33 Unit Cooler

4) Water for Condenser Cooling

Seawater temperature : 360C
Water consumption : 5 m 3/Hr. (Each condenser)

5) Refrigerant : R404A

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JL MARINE Doc. No: JL1324-PROVD-001, Rev: Z

6) Machinery Specifications for Provision Plant.

1 unit of JL provision condensing unit.
Model No. : JCU-1.2-RM
Cooling Capacity Each : 4,500 Watts.
Refrigerant : R404A
Condensing Temperature. : + 430C
Evaporating Temperature. : -270C

6.1) Two (2) Sets of Compressor

Type/Model : Bitzer Type V open type compressor
No. Of Cylinder : 2
Dia. Of Cylinder : 85 mm
Stroke Of Piston : 65 mm
Revolution : 635 Rpm
Driven Mechanism : Belt driven 2 SPA
Compressor Flywheel : ∅450 mm
Discharge Conn. : 7/8”
Suction Conn. : 1-1/8”
Accessories for compressor
a. Suction & discharge stop valve
b. Flywheels and V-Belts
c. Crankcase heater 60w
6.2) Two (2) Sets of compressor motor (c/w cable gland)
Type : TEFC, IP 54.
Output : 6.3 Kw
Poles : 4 Poles
Insulation Class: Class ‘F’
Revolution : 1750 rpm
Driven Pulley : ∅160 mmX ∅28 mm
Electric Source : 440V/3Ph/60Hz

6.3) 2 Sets of condenser

Type : Horizontal shell & tube type
Model : JSM-505
Cooling Media : Seawater of 32 °C
Water Consumption : 5 m3/Hr
Gas inlet : 5/8”
Liquid outlet : 1/2”
Water inlet : DN 32
Water outlet : DN 32
Material
a. Tube : Cu/Ni Finned Tubes
b. Plate : Stainless Steel
c. Shell : Mild Steel

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JL MARINE Doc. No: JL1324-PROVD-001, Rev: Z

6.4) 1 Lot Accessories For Condensers

a. 4 PC thermometers ( 00C - 1200C ) for cooling water
b. 2 PC safety valves.
c. 2 PC water pressure gauges ( 76mm -6 Kg/cm2 )

6.5) 2 Sets of Oil Separator

Model : AC & S-5887
Refrigerant Connection : 7/8”

6.6) 1 Set Filter & Drier Panel Comprises Of

a. Alco EK-165 Casing C/W Filter Core.
b. 3 PC 12.7 mm (1/2”) Stop and By Pass Valves.
c. 1 PC 12.7 mm (1/2”) Sight Glass.

6.7) 2 Sets Control Switch Box Comprises Of

a. 4 PCs FD 60 mm pressure gauges.
(2 × 76 cm Hg – 14 Kg/cm2 pressure gauges)
(2 × 0 - 35 Kg/cm2 pressure gauges)
b. 4 PCs 1/4” stop valves for pressure gauges
c. 2 × KP 1 Low Pressure Switches.
d. 2 × KP 5 High Pressure Switches.
7) 2 Sets of fan coil cooler units
Unit cooler shall be ceiling suspending type. It comprises of Coil, Casing, Fan
and Defrost Heater, which have the following characters:
• Coil is built with internal grooved cooper tube and aluminum fins with 4
or 7 spacing, the coil is completed with a multiple injection system by
means of venturi type distribution head for thermostatic expansion valve
Casing is built totally in aluminum, white plastic-coated, corrosion
resistant impact and scratchproof. Drip tray with inter metal sheet to
eliminate condensation.
7.1) Unit Cooler for Freezer Room 1 Set
• Model : FHVT602
• Power source : 220V/1PH/60HZ
• Evaporation Temperature : -27 0C
• Room Temperature : -20 0C
• Unit Capacity : 1940W
• Fan Motor Power : 160 W
• Air Flow rate : 1960m3/h
• Inlet Connection : 1/2”
• Outlet Connection : 3/4”
• Coil Surface Area : 9.3 m2
• Defrost Heater : 2190W
• Drain Pipe Strip Heater : 128 W
Remark: defrost safety thermostat to be built-in

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JL MARINE Doc. No: JL1324-PROVD-001, Rev: Z

7.2) Unit Cooler for Vegetable Room 1 Set

• Model : FHV411
• Power source : 220V/1PH/60HZ
• Evaporation Temperature : -4 0C
• Room Temperature : +4 0C
• Unit Capacity : 2540 W
• Fan Motor Power : 160W
• Air Flow Rate : 1500 m3/h
• Inlet Connection : 1/2’’
• Outlet Connection : 3/4’’
• Coil Surface Area : 9.9 m2

8) 1 Sets control valve panel comprises of

a. 2 PCs of Danfoss thermostatic expansion valve
(1 × TES2-0.6 for Freezer Room)
(1 × TES-0.45 for Chiller Room)
b. 2 × 3/8” EVR6 solenoid valves (danfoss)
c. 2 × 3/8” cap valves (for by pass)
d. 4 PC of stop valves (danfoss)
[2 × 3/8” mm stop valves]
[2 × 1/2” mm stop valves]
[4 × 3/4” mm stop valves]
e. 1pc KVP-15 (5/8’’)constant pressure regulators.
f. 1pc non return valve NRV19 ( ¾’’) (danfoss)

9) 1 set of group electrical control starter panel as per drawing

(Refers to electrical drawing, the panel shall be supply loose)
Electric panel which consist of all electric components and starters for start/stop of
compressors, automatic and manual operations, necessary interlock to prevent
starting and/or tripping the compressors in the event of failure of the draft fan
mounted on the freezer and chiller rooms coil cooler units, overloading of
compressor, high pressure safety cut out and defrosting timer for the automatic
defrosting of the freezer coils. The start/stop push buttons, indicating lamps on
solenoid valves activation, fault lamps and auto/manual selector switch shall be
displayed on the external of the panel.

10) 1 set of digital thermostat & thermometer panel as per drawing

2 PCS dial thermometer +30℃ to -30℃
2 PCS digital thermostats

11) 2 set of man lock-in control panel

Two units of man trap in alarm complete with buzzer and visual flash and two
pieces of activation buttons, one for each room.
(Refers to electrical drawing, the panel shall be supply loose)

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JL MARINE Doc. No: JL1324-PROVD-001, Rev: Z

12) 1 lot of recommended spare parts and tools.

1 set of tools and spare parts in accordance to Manufacturer standard conforming

to Class Requirement. (Refer to JL1324-PROV-008 for detail)

13) 1 lot of refrigerant & compressor oil for initial charge and spare

a. Refrigerant R404A : 2 × 10.9 Kg

b. Lubricant oil : 1 × 4 Lts.

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JL MARINE Doc No: JL1324-PROVD-002, Rev: Z

Heat Load Summary

1. Design Condition

S/No Description Temperature ( oC)

1 Ambient Air 50
2 Deck exposed in Sun Shine 75
3 Deck exposed in Sun Shade 50
4 Wall exposed in Sun Shine 66
5 Wall exposed in Sun Shade 50
6 Air Conditioning Space 23
7 Non Air Conditioned Space 35
8 Spot Cooling Space 30
9 Engine Room 60
.

2. Provision Refrigeration Chamber

Room Room
Cooling Defrosting
S/No Compartment Volume Temp Remarks
Method Method
(m³) (ºC)
Auto &
1 Freezer Room ~40 -20 Unit Cooler Electric
Manual
2 Chiller Room ~45 +4 Unit Cooler

3. Heat Transmission Coefficient

The construction of Cold/cool rooms is assumed as the specification listed in below
table, which shall be determined by Shipyard.

S/No Part Specification w/( °c*m²)

1 Ceiling 125PU+0.5SUS+0.5 SUS 0.38
2 Floor 125PU+30CM+8TI 0.22
125PU+0.5SUS+0.5 SUS 0.38
3 Side Wall 125PU+0.5SUS+0.5 SUS 0.38
125PU+0.5SUS+0.5 SUS 0.38
4 Partition Wall 125PU+0.5SUS+0.5 SUS 0.49

Note: PU: Polyurethane, CM: Cement TI: Tile,

SUS: Stainless Steel, GA: Galvanized Steel Sheet

4. Operation

Cooling down Period Unit running within 24 Hours

Maintenance Period Unit running with max 18hrs/Day running

Page 1 of 3
JL MARINE Doc No: JL1324-PROVD-002, Rev: Z

5. Heat Calculation
A) Freezer Room
Room Volume: ~40m3
Room Temperature: ~-20°c
1) Transmission Heat Gain

Temp
Coefficient
S/No Description Area (m2) Difference Watts
w/(°c*m)
(K)
1 Ceiling 11 0.38 43 180
2 Floor 11 0.22 43 105
3 Side wall 9 0.38 50 171
7.5 0.38 50 132
9 0.38 55 189
4 Partition 7.5 0.49 24 89
Sub Total (watts) 866

2) Infiltration Heat (door)

4.2(l/s) X 0.042(kj/l) x 1000 = 177 Watts

3) Internal Heat

Fan Motor 80 Watts X 2 set = 160 Watts

4) Total Heat Loss = 1203 Watts

B) Chiller Room
Room Volume: ~45m3
Room Temperature: ~+4°c
1) Transmission Heat Gain

Temp
Coefficient
S/No Description Area (m2) Difference Watts
w/(°c*m)
(K)
1 ceiling 14 0.38 19 102
2 floor 14 0.22 19 181
10 0.38 26 99
3 Side wall 9 0.38 26 89
10 0.38 31 118
4 partition
Sub Total (watts) 599

2) Infiltration Heat (door)

6.2(l/s) X 0.07(kj/l) x 1000 = 434 Watts

3) Internal Heat

Fan Motor 103 Watts X 1 set = 103Watts

4) Total Heat Loss = 1136 Watts

Page 2 of 3
JL MARINE Doc No: JL1324-PROVD-002, Rev: Z

C) Total Heat Load

24 Hrs Running 18Hrs Running

S/NO ROOM
(w) (w)
1 Freezer Room 1203 1604

2 Chiller Room 1136 1515

Cooling Load Required 2339 3119

Total Cooling Load Required with 10% Allowance (w) 3430

Required Refrigeration Plant Capacity (Min) 4000

6. Condensing Unit Capacity Specification

JL Provide the following Provision Unit:

Model: JCU-1.2-RM
Capacity: 4000 Watts/Each
Evaporating Temp: -27 °C
Condensing Temp: 43 °C
Motor Speed: 1,750 rpm
Refrigerant: R404A

7. Fan Coil Unit (Air Cooler)

Heat Gain T.D. Unit Cooler Capacity

S/No Room
(W) (°C) Model (W)

1 Freezer Room 1604 7 FHVT602 1940

2 Chiller Room 1515 8 FHV411 2540

Page 3 of 3
Forced convection unit air cooler - flatline
FHV 411 JL1324-PROVD-005
Place of cooling: CHILLER ROOM PAGE 1 OF 2

Dimensions, Tube volumes, Weights

Dimensions Tube vol. Weight Connections
A B C D E F G H Inlet Outlet
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [dm³] [kg] Ø [mm] Ø [mm]
702 420 460 430 200 2.40 19 12.0 # 18.0

#: Multiple injection with Schrader valve at the outlet

Electrical loads
No. Blade Power supply Input Current No. of re- Electric defrost heating El. airconditioning
ø capacity volutions Coil Drain Total Total
pan
[mm] [ V, Hz ] [W] [A] [ min-1] [W] [W] [W] [W] [W]

1 300 S ~230 V 50/60 Hz 78/103 0,35/0,45 1350/1520

Capacity data
Refri- Capacity Evapora- Air inlet DT1 Sur- Air Air Sound Fin
gerant Pe tion te tA1 face capacity throw power spacing
[kW] [°C] [°C] [K] [m²] [m³/h] [m] [ dB(A) ] [mm]
4
Result R404A 2.54 -4.0 4.0 8.0 9.9 1500 5 70 4.0
Forced convection unit air cooler - flatline
FHVT 602 JL1324-PROVD-005
Place of cooling: FREEZER ROOM PAGE 2 OF 2

Dimensions, Tube volumes, Weights

Dimensions Tube vol. Weight Connections
A B C D E F G H Inlet Outlet
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [dm³] [kg] Ø [mm] Ø [mm]
1094 812 350 430 200 3.20 23 12.0 # 18.0

#: Multiple injection with Schrader valve at the outlet

Electrical loads
No. Blade Power supply Input Current No. of re- Electric defrost heating El. airconditioning
ø capacity volutions Coil Drain Total Total
pan
[mm] [ V, Hz ] [W] [A] [ min-1] [W] [W] [W] [W] [W]

2 250-34 S ~230 V 50/60 Hz 86/80 0,62/0,55 1300/1550 2x730 1x730 2190

Capacity data
Refri- Capacity Evapora- Air inlet DT1 Sur- Air Air Sound Fin
gerant Pe tion te tA1 face capacity throw power spacing
[kW] [°C] [°C] [K] [m²] [m³/h] [m] [ dB(A) ] [mm]

Result R404A 1.94 -27.0 -20.0 7.0 10.3 1960 6 66 6.0

JL MARINE Doc No: JL1324-PROVD-008 Rev.:Z

SPARE PART LIST

Part I Compressor Spare Part List BITZER V

Qty/ Qty/
S/No Description Part No Remarks
Ship Supply
Valve Plate Assembly
1 304050-06 2 1
Comprise of:

1A Valve Plate 2 1

Suction & Discharge Valve

1B 4 4
Reeds

Spring for Suction &

1C 8 4
Discharge Valve Reeds

2 Shaft Seal Assembly 374008-04 2 1

Piston Assembly
3 302239-06 4 1
Comprise of:

3A Piston Crown Flange Gasket 4 1

3B Piston Ring 4 sets 1 set

3C Connecting Rod 4 1

3D Piston Pin 4 1

Part II Spare Part for Condenser and Control Components

Qty/ Qty/
S/No Description Part No Remarks
Ship Supply
Pressure Relief Valve
1 1 1
Size: 1/2"x½” NPT
For JSM-5
2 Cover Gasket Packing 4 1Set
Condenser
FD: 63mm
3 Suction Pressure Gauge Range: -1~ 14Bar
1 1
FD: 63mm
4 Discharge Pressure Gauge Range: -1~ 35Bar
1 1
5 High Pressure Switch Danfoss KP-5 1 1
6 Low Pressure Switch Danfoss KP-1 1 1
Thermostatic Expansion Danfoss TS2-0.45 c/w Orifice
7 Danfoss TS2-0.7
2 1
Valve No.1
220V…240
8 Coil of Solenoid Valve Danfoss 3/8” 2 1 /
1Ph/60Hz

Page 1 of 2
JL MARINE Doc No: JL1324-PROVD-008 Rev.:0

Part III Spare Part for Electric Control Components

Qty/ Qty/
S/No Description Part No Remarks
Ship Supply
Fuse Legrand
1 12 2
RA: 4A 10.3x38
Fuse Legrand
2 4 5
RA: 2A 10.3x38
Control Relay Omron
3 10 1
240V/1Ph/50Hz Model: MY-2N
Control Relay Omron
4 3 1
240V/1Ph/50Hz Model: MY-4N
Telemecanique
5 Start/Stop Push Button 2 1
Model:XB4-BL845

Page 2 of 2