Format No Ref. Proc. No Issue No Rev No Rev. Date

ODS/SOF/004B ODS/SOP/008 to 015 01 01 15/10/2003

OFFSHORE

DESIGN

SECTION

FUNCTIONAL SPECIFICATION FOR

“Instrument & Utility Air Compressor Package

With Air Dryer”

SPEC. No. FS 5402

Rev. No. 1

Discipline Mechanical

No of Pages: 19 of 33

Coalescer filter Differential pressure X X X X

Oil cooler discharge Temperature X X X X

Dryer cycle failure X X

Receiver pressure signal (Instrument Air Receiver) X

Compressor Vibration (per unit) X X X

After cooler Fan Vibration X X X

After Cooler Fan motor over Load (per unit) X X

Receiver Liquid Level (Utility Air Receiver) X X X

Receiver Liquid Level (Instrument Air Receiver) X X X

Lubrication oil temperature (per unit) X X X X

Compressor motor over load (per unit) X X

Compressor running (per unit) X X

Low flow in regeneration circuit

(Split Flow Desiccant Type Air Dryer)

X

Regeneration air Temperature

(Split Flow Desiccant Type Air Dryer)

X X

5.7.3 Remote Control and Indications for platform DCS ( wherever DCS

available/provided )

The contractor shall provide terminations at the junction box for the following remote

control and indicators that will be used for the platform DCS:

• I/O associated with compressor sequence control

• Emergency Shutdown (from DCS to Local Control Panel)

• Package Common Fault (from Local Control Panel to DCS)

• Package Common Shutdown (from Local Control Panel to DCS)

• Package Running Indication (from Local Control Panel to DCS)

• Package Stopping Indication (from Local Control Panel to DCS)

• Remote State Indication (from DCS to Local Control Panel)

All terminations shall have volt free contacts.

5.8 Electrical Requirements

All electrical equipment motors, material and wiring shall be in accordance with the

FS 4017- Functional Specification for Electrical Equipment with Packaged Plant and

FS 4008 -Functional specification for electrical motors .

Format No Ref. Proc. No Issue No Rev No Rev. Date

ODS/SOF/004B ODS/SOP/008 to 015 01 01 15/10/2003

OFFSHORE

DESIGN

SECTION

FUNCTIONAL SPECIFICATION FOR

“Instrument & Utility Air Compressor Package

With Air Dryer”

SPEC. No. FS 5402

Rev. No. 1

Discipline Mechanical

No of Pages: 20 of 33

5.9 Package Requirements

5.9.1 General

The package shall be designed and fabricated in accordance with the Functional

Specification for Packaged Equipment 5100P / W

5.9.2 Piping

All interconnecting pipe work and valves shall comply with the requirements of

AMSE B 31.3 and the requirements of the Functional Specifications for Piping

Design 2004-A, Functional specification for piping fabrication and installation 2004 –

B, Functional Specification for Insulation of Piping and Equipment.

All pipe work shall be thoroughly cleaned internally before erection.

Connections to the receivers and Dryer units shall be flanged to ASME B16.6 Class

150 RF

The pipe work interconnecting the compressors, receivers and dryers shall be so

arranged that each major piece of equipment can be taken out of service without

interrupting the air supply.

All drain lines shall be separately routed to the Package edge where they shall be

grouped and terminated in one 50 DN (2”) ASME B 16.5 Class 150 RF flange for

connection to the platform drain system. There shall be a continuous fall of at least

1:100 in the drain lines towards the terminal point.

Pipe work shall be sized and designed in accordance with good engineering practice.

All pipe work shall be adequately supported for shipment and operation. Termination

flange size shall be DN 50 (2”) minimum. Drain lines do not need to be heat traced

or insulated.

The use of flexible hoses shall be kept at a minimum. Any flexible hoses shall be

braided and have a pressure rating of at least the system relief valve set pressure at the

operating temperature.

All piping terminations shall be flanged to ASME B 16.5

5.9.3 Base Plate