South African Airways
Scope of Work
for
HVAC Refurbishment/Replacement at Airways Park and Inflight Services Buildings
Address:
South African Airways
Airways Park and Inflight Services
Jones Road
O.R. Tambo International Airport
1627
Background
Airways Park is fed by twenty one (21) Air Handling units and seven (7) Chillers in Total. All Air
Handling units do not have heating Capabilities and of the seven (7) Chillers, only three (3) are
operational. Additionally the Chillers are over twenty years old and have a life expectancy of twenty
(20) years.
Inflight Services is fed by twenty three (23) Air Handling units and heating is achieved via a hot water
coil, fed from a boiler system. Heating via this method is very inefficient and costly, especially due to
the fact that the vast piping systems are old and leaking.
Scope of Work - Airways Park
Heating:

Site Establishment (Health and Safety, Security, Access)

Detailed Design, complete with Piping and Instrumentation Diagram (must be approved by
SAA Facilities Engineering)

Manufacture Equipment as per Price Schedule. Local support for all equipment supplied.

Install Equipment as per Price Schedule. Must be easily maintainable.

Commission all Equipment.

Contractor will be responsible for maintenance during installation and up to 3 months after
final completion (during this time training and handover to onsite maintenance team will take
place)

Training of Site Staff (allow for 3 months after completion of Project).
This system is primarily responsible for heating during winter months and must ensure that
18 – 22 Degrees Celsius is achieved and maintained in all areas of the building. The Control
System must allow for Local SMART Control at the Air Handling Unit (e.g. capable of switching
between heating and cooling) and linked to a centralised control unit located at the Main
Chiller Plant (all controls used must be Building Management System compatible). The control
system input must be wired to at least 1 thermocouple per floor of a Block (average of floor
temperatures to be used as an input for temperature control). New Power supply cables for
Heating Elements and Air handling units (existing cable will be replaced by 1 new cable) must
be routed to each Air handling unit from a central point. Safe isolation and removal (if
applicable) of any items that are changed. There should be no impact on operations during any
phase of this project (all work impacting operations must be carried out after normal business
hours 17h00 – 04h00, except in areas that operate 24 hours a day, where special arrangements
must be made with the SAA Project Manager). SAA is open to alternative tried and tested
heating solutions; however those are to be submitted as completely standalone bids with
payback models.
Chillers F- Block:

Site Establishment (Health and Safety , Security, Access)

Detailed Design, complete with (Piping and Instrumentation Diagram must be approved by
SAA Facilities Engineering)

Manufacture and Supply Equipment as per Price Schedule. Local support for all equipment
supplied. Must be easily maintainable.

Removal of existing chillers unit (No disruption to operations, chiller to be removed, installed,
commissioned, fully functional one at a time) - Install Equipment as per Price Schedule.

Commission all Equipment.

Contractor will be responsible for maintenance during installation and up to 3 months after
final completion (during this time training and handover to onsite maintenance team will take
place)

Maintenance and Operational Manuals to be handed over (2 hard copies and 2 Softcopies)

Training of Site Staff (allow for 3 months after completion of Project).
This system is primarily responsible for cooling during summer months and must ensure that
18 – 22 Degrees Celsius is achieved and maintained in all areas of the building. The Control
System must allow for Local SMART Control (same as Air handling unit) at the Chiller Unit (e.g.
capable of switching between heating and cooling) and linked to a centralised control unit
located at the Main Chiller Plant (all controls used must be Building Management System
compatible). The control system input must be wired to at least 1 thermocouple per floor of a
Block (average of floor temperatures to be used as an input for temperature control). Safe
isolation and removal of all items that are changed/replaced. Chillers are to be wrapped and
transported to our storage facility in Inflight Services. There should be no impact on operations
during any phase of this project (all work impacting operations must be carried out after
normal business hours 17h00 – 04h00, except in areas that operate 24 hours a day, where
special arrangements must be made with the SAA Project Manager). One unit is to be removed,
new one installed and commissioned and be fully functional to carry the load when the
second/third/fourth is done. The cooling towers are to be fully refurbished (one at a time – no
impact to operations).
Chillers H- Block:

Site Establishment (Health and Safety , Security, Access)

Detailed Design, complete with Piping and Instrumentation Diagram (must be approved by
SAA Facilities Engineering)

Manufacture and Supply Equipment as per Price Schedule. Local support for all equipment
supplied. Must be easily maintainable.

Removal of existing chillers unit (No disruption to operations, chiller to be removed, installed,
commissioned, fully functional one at a time) - Install Equipment as per Price Schedule.

Commission all Equipment.

Contractor will be responsible for maintenance during installation and up to 3 months after
final completion (during this time training and handover to onsite maintenance team will take
place)

Maintenance and Operational Manuals to be handed over (2 hard copies and 2 Softcopies)

Training of Site Staff (allow for 3 months after completion of Project).
This system is primarily responsible for cooling during summer months and must ensure that
18 – 22 Degrees Celsius is achieved and maintained in all areas of the building. The Control
System must allow for Local SMART Control (same as Air handling unit) at the Chiller Unit (e.g.
capable of switching between heating and cooling) and linked to a centralised control unit
located at the Main Chiller Plant (all controls used must be Building Management System
compatible). The control system input must be wired to at least 1 thermocouple per floor of a
Block (average of floor temperatures to be used as an input for temperature control). Safe
isolation and removal of all items that are changed/replaced. Chillers are to be wrapped and
transported to our storage facility in Inflight Services. There should be no impact on operations
during any phase of this project (all work impacting operations must be carried out after
normal business hours 17h00 – 04h00, except in areas that operate 24 hours a day, where
special arrangements must be made with the SAA Project Manager). One unit is to be removed,
new one installed and commissioned and be fully functional to carry the load when the
second/third is done. The cooling towers are to be fully refurbished (one at a time – no impact
to operations).

To Supply all Materials, Installation and commissioning including testing of the Air Handling
Units and Chillers and the Removal of the old Air Handling Unit and Chillers for both Airways
Park and Inflight Services Building.
Scope of Work – Inflight Services
Air handling units with Cooling and Heating:

Site Establishment (Health and Safety , Security, Access)

Detailed Design, complete with Piping and Instrumentation Diagram (must be approved by
SAA Facilities Engineering)

Manufacture Equipment as per Price Schedule. Local support for all equipment supplied.

Install Equipment as per Price Schedule.

Commission all Equipment.

Contractor will be responsible for maintenance during installation and up to 3 months after
final completion (during this time training and handover to onsite maintenance team will take
place)

Training of Site Staff (allow for 3 months after completion of Project).
This system is responsible for SMART Cooling/Heating and must ensure that 18 – 22 Degrees
Celsius is achieved and maintained in all areas of the building. The Control System must allow
for Local SMART Control at the Air Handling Unit (e.g. capable of switching between heating
and cooling) and linked to a centralised control unit located at the Main Chiller Plant (all
controls used must be Building Management System compatible). The control system input
must be wired to at least 1 thermocouple per floor of a Block (average of floor temperatures to
be used as an input for temperature control). New Power supply cables (if applicable) for
Heating Elements and Air handling units (existing cable will be replaced by 1 new cable) must
be routed to each Air handling unit from a central point. As part of this project all pipework is
to be changed (lagging and cladded), in line with design and standards (Local or International).
Safe isolation and removal of all items that are changed e.g. Existing Air handling units, piping
systems etc. There should be no impact on operations during any phase of this project (all
work impacting operations must be carried out after normal business hours 17h00 – 04h00,
except in areas that operate 24 hours a day, where special arrangements must be made with
the SAA Project Manager). SAA is open to alternative tried and tested heating solutions;
however those are to be submitted as completely standalone bids with payback models
General

The Contractor will be responsible to Clean up and Removal, disposal of all debris associated
with the Supply and Installation for both Air Handling Unit , Chillers at Airways including
Inflight Services Building.

Preferred hours of Work for Receiving, Supply, Installation, and the start-up should be
performed during the day between 07:00am till 05:00pm from Monday till Friday.
Authorization from SAA Project Manager should be requested in advance (24 hrs prior) should
the Contractor need to work after hours and weekends over weekends.

The Contractor will provide his/her accredited Safety Rep. on site.

The Contractor will provide his/her Project Manager on site. Meetings with SAA Project
Manager will be held once a week and as seen fit based on Project Delivery. Project Schedule
(Baseline and critical path etc.), Risk Register, Proposed Payment Certificates etc. will be
presented and discussed.

The Contractor must familiarize him/herself with the Site, hence South African Airways will
accommodate the Contractor should they wish for additional Time before the closure of the
Tender.

The Contractor will responsible for the labelling of the Assets supplied and submit and asset
register.

During Installation of equipment all Maintenance, Breakdowns and day to day operating of the
new equipment will be dealt with by the contractor. Note: SAA’s Maintenance teams will be
seconded to the contractor during this period only for Maintenance type activities (Not Project
work).

The Contractor shall do all relevant reports including identifying the risk weekly if any.

The Contractor shall comply with all Health and Safety requirements.

The Contractor will be responsible for his/her tools, equipment, materials, and supplies while
on Site.

The Contractor is responsible to do Security Clearance with the South African Police
Department on behalf of all employees and subcontractors under his Management.

The Contractor will submit a Proposed Progress Payment Schedule linked to deliverables –
Final Approval by SAA.

As Drawings to be supplied e.g. As-built, Piping and Instrumentation Diagram.

All Guarantees and Warranties.