10-air conditioning installations - split unit
TRANSCRIPT
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Sr. Dr. Sarajul Fikri Mohamed
Faculty of Built Environment
MECHANICAL & ELECTRICAL WORKS
MEASUREMENT (SBEQ3213)Week 10 : Air Conditioning Installations - Split Unit
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Cold Water InstallationsPLUMBING WORKS
Electrical Installations
Fire Fighting System
MAIN COURSE COMPONENTS
Air Conditioning Installations
Unit/Split Package/Central
Single Phase Three Phase
ELECTRICAL WORKS
MECHANICAL WORKS
Soil & Waste Pipes/Sanitary Fittings
Underground Drainage
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1. Air conditioning installations: main components of window& split unit
2. SMM2 measurement rules for air conditioning installations
3. Taking off list for air conditioning installations
4. Heading and description.
5. Case study: AIR CONDITIONING SYSTEM FOR SEKOLAHPIAWAI KBSR & KLINIK PERGIGIAN / KESIHATAN FOR JKRMEKANIKAL NEGERI KELANTAN
6. Studio work
TABLE OF CONTENTS
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2009 Sarajul Fikri Mohamed
MAIN COMPONENTS
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PREAMBLES
EQUIPMENT: CONDENSING UNIT & FAN COIL UNIT ETC
DUCTING: SUPPLY DUCT & RETURN DUCT
DUCTING FITTING
INSULATION TO DUCTWORK/PIPE
DUCT WORK SUPPORT
PIPEWORK
EQUIPMENT/DIFFUSER/GRILLE/DAMPER
BUILDERS WORK
ELECTRICAL SYSTEM
TESTING
AIR CONDITIONING SYSTEM
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AIR CONDITIONING SYSTEM
UNIT SYSTEM PACKAGE SYSTEM CENTRAL SYSTEM
WINDOW UNITSPLIT UNIT
UNIT KEMAS SIAP
PENYEJUKAN
UDARA
UNIT KEMAS SIAP
KESELURUHAN
UNIT KEMAS SIAP
KESELURUHAN
UNIT KEMAS SIAP
PENYEJUKAN
UDARA
WATER CHILLEDSYSTEM
CENTRAL SYSTEM
MAIN SYSTEMS
AIR CONDITIONING INSTALLATIONS
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MAIN COMPONENTSAIR CONDITIONING INSTALLATIONSCONDENSOR UNIT
INSULATION
FAN COIL UNIT
ELECTRICAL
APPLIANCES
BUILDERS WORK
TESTING
PIPEWORK
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COOLING CAPACITYAIR CONDITIONING INSTALLATIONS
Horse Power BTU/HR1.0 9,000
1.5 12,000
2.0 18,000
2.5 24,000
Although horse power is commonly used to indicate the capacity of an
air conditioner, the scientific measure is BTU/HR (British Thermal Unit
per hour).
One BTU/HR is the quantity of heat required to raise the temperature of
one pound of water one degree Fahrenheit.
The conversion from horse power to BTU/HR are as follows:
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HOW AIR CONDITIONING
WORKS
Fakulti Alam Bina
VIDEO PRESENTATION 1
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10
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INDOOR: FCU
AIR COND
SCHEDULE
SCHEMATIC VIEW
OUT DOOR : CONDENSOR
UNIT
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INDOOR: FAN COIL UNIT
OUT DOOR : CONDENSOR
UNIT
SUPPLY AIR PIPE
RETURN AIR PIPE
ARMFLEX
INSULATION
DRAIN PIPE
ELECTRICAL
SYSTEM
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13
WINDOW UNITAIR CONDITIONING INSTALLATIONS
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14
SPLIT UNITAIR CONDITIONING INSTALLATIONS
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SPLIT UNIT: INSTALLATION PROCEDURESAIR CONDITIONING INSTALLATIONS
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SPLIT UNIT SYSTEM-:
TYPE: Wall Mounted
BTUIR: (9,500 - 25,000)
Kw: (2.8 - 7.3)
FAN COIL UNIT CONDENSER UNIT
SPLIT UNITAIR CONDITIONING INSTALLATIONS
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MULTI SPLIT SYSTEMAIR CONDITIONING INSTALLATIONS
SCHEMATIC VRV ARRANGEMENT
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INSTALLATIONS OF
OUTDOOR UNIT
Fakulti Alam Bina
VIDEO PRESENTATION
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19
PACKAGE UNITAIR CONDITIONING INSTALLATIONS
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COOLING TOWER (Menara
penyejuk)
CENTRAL SYSTEMAIR CONDITIONING INSTALLATIONS
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2009 Sarajul Fikri Mohamed
SMM2 MEASUREMENT
RULES
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AIR CONDITIONINGANDVENTILATION SYSTEM
MEASUREMENTRULES
SECTION QPLUMBING AND MECHANICALENGINEERING INSTALLATIONS
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Q.1 Information
Q.2 Classification Of WorkQ.3 Location of works
PIPEWORKS
Q.7 Generally
Q.8 Pipe and FittingsQ.9 Special Connection, etc
Q.10 Labour
Q.11 Sundries
Q.12 Pipework Support
Q.13 Connection
Q 14 Ducting and fittingsQ.16 Ductwork supports
Q. 18 Ducting and ducting fittings
EQUIPMENT AND ANCILLARIES
Q.19 Generally
BUILDERS WORK
Q.31 Generally
Q.32. Particularly
MEASUREMENT RULES: SECTION QAIR CONDITIONING INSTALLATIONS
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MEASUREMENT RULES
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25
GENERALLY
Q.1 INFORMATION
AIR CONDITIONING SYSTEM AND INSTALLATION
Generally
Q.1. Information
1 Particulars of the following shall be given :
a) Regulation, etc.b) Kind and quality of material.
c) Gauge, thickness or substance of material.
d) Any tests, etc.
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ITEM DESCRIPTION UNIT QTY RATEAMOUNT
(RM)
AIR-COOLED MULTI SPLIT SYSTEM
OUTDOOR UNIT
a York' or other equal or approved air-cooled
condensing unit with a cooling capacity
48000 BTU/HR with type R22 refrigerant
complete with fans, motors and all
necessary refrigerant piping (m/s) and
connection and bolted to roof slab No 1 12,742.00
b York' or other equal or approved air-cooled
condensing unit with a cooling capacity
48000 BTU/HR with type R22 refrigerant
complete with fans, motors and all
necessary refrigerant piping (m/s) and No 1 16,259.00
connection and bolted to roof slab
c York' or other equal or approved air-cooledcondensing unit with a cooling capacity
72000 BTU/HR with type R22 refrigerant
complete with fans, motors and all
necessary refrigerant piping (m/s) and
connection and bolted to roof slab No 1 16,259.00
d York' or other equal or approved air-cooled
condensing unit with a cooling capacity
78000 BTU/HR with type R22 refrigerant
complete with fans, motors and all
necessary refrigerant piping (m/s) and
connection and bolted to roof slab No 1 16,259.00
e York' or other equal or approved air-cooledcondensing unit with a cooling capacity
90000 BTU/HR with type R22 refrigerant
complete with fans, motors and all
necessary refrigerant piping (m/s) and
connection and bolted to roof slab No 1 17,670.00
TO COLLECTION:
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CONDENSING UNIT
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Q.1.2 Assembling and jointing together the component parts of composite units and providing any necessary connectingflanges and jointing materials shall be deemed to be includedwith the items concerned. Where composite units are suppliedby the Employer, particulars shall be given of the assemblywork involved.
Q.1.3 Patterns, moulds, templets and the like shall be deemed to beincluded with the items.
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Q.1.4 Priming and painting off-site and proprietary finishes or
surface treatment applied as part of the production processshall be described stating whether applied before or after
fabrication or assembly.
Q.1.5 Except where otherwise stated the method of fixing and the
provision of nails, bolts, nuts, holes, screws, plugs, shot-firedpins and the like shall be given in the description of the work.
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Q.1.6 The nature of the background to which work is to be fixed shall be given in
the description. Any necessary drilling of the backgrounds shall be deemed
to be included. Backgrounds shall be classified as follows :
a) Building-board which shall be deemed to include hardboard,
compressed cement sheet, plasterboard, fibreboard and similar
materials which do not grip woodscrews.
b) Timber which shall be deemed to include softwood, hardwood,
blockboard, plywood and similar materials which will grip wood-screwswhen a lead-hole has been drilled.
c) brickwork, concrete or stone work
d) plain metal
e) glass
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ITEM DESCRIPTION UNIT QTY RATEAMOUNT
(RM)
OUTDOOR UNIT(CONT'D)
a York' or other equal or approved air-cooled
condensing unit with a cooling capacity
96000 BTU/HR with type R22 refrigerant
complete with fans, motors and all
necessary refrigerant piping (m/s) and
connection and bolted to roof slab No 1
INDOOR UNIT
b York' or other equal and approved fan coil
unit a cooling capacity of 12,000 BTU/HR,
complete with electronic refrigerant
control valve, mode selector cooling, self
diagnosis remote controller and self
diagnosis circuit with malfunction code
display, and fixed to ceiling with approvedaccessories No 6
c York' or other equal and approved fan coil
unit a cooling capacity of 24,000 BTU/HR,
complete with electronic refrigerant
control valve, mode selector cooling, self
diagnosis remote controller and self
diagnosis circuit with malfunction code
display, and fixed to ceiling with approved
accessories No 8
d York' or other equal and approved fan coil
unit a cooling capacity of 30,000 BTU/HR,
complete with electronic refrigerant
control valve, mode selector cooling, self
diagnosis remote controller and self
diagnosis circuit with malfunction code
display, and fixed to ceiling with approved
accessories No 4
TO COLLECTION:
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FAN COIL UNIT
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Q.1.7. Temporary work shall be so described. Removing temporarywork and making good after shall be deemed to be included
with the item.
Q.1.8. Connecting to existing services shall be described
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GENERALLY
Q.2. CLASSIFICATION OF WORK
Q.2.1 Work together with its metalwork, supports and the like (unlessassociated with more than one installation) shall be classified asfollows and given under an appropriate heading :
t) Air handling installation, identifying whether ventilationsupply, ventilation extract, ventilation with heating (air heatedcentrally), ventilation with heating (air heated locally),airconditioning (air heated centrally), air conditioning (air heatedlocally), or foul air extract.
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Q.3. LOCATION OF WORK
Location of works :
a. Internally
b. Externally
c. In plant rooms
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PIPE WORKS
Q.7 GENERALLY
1. Purpose-made pipes and purpose-made pipe fittings shall bedescribed.
2. Pipes and pipe fittings which are wrapped, coated or lined by themanufacturershall be so described stating the type of treatment.
3. Pipework required to be temporarily fixed in position,dismantled for chromium-plating or other special finishing andsubsequently refixed shall be so described.
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ITEM DESCRIPTION UNIT QTY RATEAMOUNT
(RM)
PIPEWORKS
Piping
a Supply Air Pipe
18.80mm Galvanised steel tubing to
BS 1387 refrigerant pipe fixed to concrete
slab with and including mild steel clips m 218
b Return Air Pipe
37.60mm Galvanised steel tubing to
BS 1387 refrigerant pipe fixed to concrete
slab with and including mild steel clips m 218
c Drain Pipe
18.80 mm Diameter galvanised drain pipe
to Bs 1387 fixed to concrete slab with
and including mild steel clips. m 47
e Extra Over for 18.80 mm x 18.80 mm
Diameter Galvanised Iron bend including
jointing and fixing in supply air pipe No 25
f Extra Over for 37.60 mm x 37.60 mm
Diameter ditto in return air pipe No 25
g Extra Over for 18.80 mm x 18.80 mm
Diameter ditto in drain pipe No 10
h Extra Over for 18.80 mm x 18.80 mm x
18.80 mm Diameter Galvanised Iron tee
including jointing and fixing in supply air
pipe No 11
j Extra Over for 37.60 mm x 37.60 mm x
37.60 mm Diameter Galvanised Iron bend
including jointing and fixing in return air
pipe No 11
k Extra Over for 18.80 mm x 18.80 mm x
18.80 mm Diameter Galvanised Iron bend
including jointing and fixing in drain pipe No 14
TO COLLECTION:
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SUPPLY AIR PIPE
RETURN AIR PIPE
DRAIN PIPE
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a)Shall be supplied and installed:
-all necessary interconnecting pipework between item of equipment
-all vents and exhausts
-all necessary pipe, valves, fittings, anchors, supports, brackets, insulation
etc
b) Type of piping
i) Refrigerant pipe
- up to and including 2 bore, pipes shall be seamless coppers to BS659.above 2 bore pipes shall be galvanised steel heavy gauges to BS1387
ii) Drain pipe
- drain pipes shall be seamless copper tubing for all size diameter and
galvanised steel.
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Q.8 PIPE AND FITTING
1. Pipes (measured over all pipe fittings, short running
lengths and branches) shall be given in metres stating thetype and the normal size. (Q.8.1)
Purpose-made pipe shall be so described and given
separately. Curved pipes shall be so described stating the
mean radius.
Joints in the running length shall be given in the
description stating the method of jointing.
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Q.8 PIPE AND FITTING
2. Flexible pipes and extensible pipes (measured as fully
extended) shall each be so described. (Q.8.3)
3. Pipes laid or fixed in ducts, trenches and chases or embedded
in in-situ concrete or screeds shall each be so described.
(Q.8.4)
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Q.9. SPECIAL CONNECTIONS, ETC.
1. Special connections and special joints in pipes shall each be
enumerated separately (except where given in the description ofanother enumerated item) stating the nominal size and kind ofpipe concerned and the method of jointing. Classification shall beas follows :
a) Connections between pipes of differing materials and
differing grades of the same material.b) Connections between pipes and appliances or
equipment.
c) Connections to existing pipes.
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Q.10. LABOURS
Labours on pipes (e.g. made bends, made springs, madeoffsets, beaded ends, ornamental ends, etc.) shall be deemedto be included with the pipes on which they occur.
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Q.11 SUNDRIES
6. Pipe-sleeves through walls, floors ceilings shall be enumeratedstating the type, lengths, the nominal size and kind of pipepassing through and the type of packing required, and if to besupplied for fixing by other trades, this shall be so described.
7. Wall, floor or ceiling plates shall be grouped together as platesand enumerated stating the type and size.
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Q.12 PIPEWORK SUPPORTS
1. Components or assemblies of components (e.g. clips, saddles,pipe-hooks, holderbats, brackets, rollers, chairs and hangers orblack-plates and girder-lugs) used to fix supports for more thanone pipe shall be enumerated separately stating the type andsize of components.
Spring compensated components shall be so described statingthe loading and movement to be accommodated.
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EQUIPMENT AND ANCILLARIES
Q.19 GENERALLY
1. Unless otherwise stated, equipment such as boiler,generators, cylinder, pumps, cooling, air handling unit, fans,refrigerator equipment etc in numbers ( Q.19.1)
Condenser Unit And Fan Coil, etc. Measured in nos (Q.19.1)
2. Packaged item shall be described in conjunction with amanufacturers detailed specification (Q.19.2)
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EQUIPMENT AND ANCILLARIES
Q.19 GENERALLY
3. Any limiting dimensions on the size shall be given. (Q.19.3)
4. Electrical connection shall be given in accordance withsection R . (Q.19.4) Section R.
5. Platework, fuel hoppers dan supporting steelwork -accordance Section P.
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ITEM DESCRIPTION UNIT QTY RATEAMOUNT
(RM)
INSULATION TO PIPEWORK
a Supply Air Pipe
25 mm thick close cell thermal insulation
expanded rubber compound or approved
equivalent to 18.8 mm Diameter
galvanised steel tubing m 218
b Drain Pipe
12 mm thick Armaflex or flexible
expanded rubber compound insulation to
18.80 mm Diameter darin pipe m 47
AIR CONDITIONING PANEL
c 3 Phase 240 Volt air-conditioning
electrical wiring installation to air-
conditioning system including proving 10
Nos switch, any items of control wiring
and the like provision of all necessary
copper cables, wiring material cocealed
conduits fitting No 1
----------------------------------
d Upon completion allowed for the testing
the foregoing air-conditioning system,
make good and defect and leave the
whole fo the installation in perfect working
order to the satisfaction of the engineerItem
BUILDER'S WORK
e 50 mm thick concrete Grade 15 as based
300 mm wide m3 0.1
TO COLLECTION:
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BILLS OFQUANTITIES FOR:
ELECTRICALWIRING
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EQUIPMENT AND ANCILLLARIES
Q.20 Anti-vibration and sound insulation
Anti-vibration mountings for plant shall be enumerated stating the typeand the size. Anti-vibration material and sound-insulating material inplant bases shall be given in square metres stating the nature of the
material and the thickness.
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EQUIPMENT AND ANCILLLARIES
Q.21 Equipment supports
1. Equipment supports shall be enumerated and described.
2. Particulars of the method of fixing shall be given in the descriptionin accordance with clauses Q.1.5-6.
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Q.22 JOINTING (PENYAMBUNGAN)
1. Particulars of the method of jointing shall be given in thedescription of the equipment.
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EQUIPMENT AND ANCILLARIES
Q.24 IDENTIFICATION PLATES
Plates,discs and labels for identification plants shall be
deemed to be included with the item concerned. (Q.24)
Charts giving the keys shall be enumerated
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INSULATION
Q.25 GENERALLY
1. Particulars of the following shall be given: (Q.25.1)
Kind and quality of material
Thickness of material
Finish of material Method of fixing
2. Includes smoothing the material and working aroundsupports.(Q.25.2)
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Q.26 INSULATION TO PIPEWORK
1. Insulation to pipework meter stating types and size of thepipe.
2. Working insulation around ancillaries shall be enumerated
separately in numbers extra over
3. Working insulation over flanges and pipe fitting shall be
deemed.4. Insulation boxes shall be enumerated separately in
numbers stating types of material and infill.
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ITEM DESCRIPTION UNIT QTY RATEAMOUNT
(RM)
INSULATION TO PIPEWORK
a Supply Air Pipe
25 mm thick close cell thermal insulation
expanded rubber compound or approved
equivalent to 18.8 mm Diameter
galvanised steel tubing m 218
b Drain Pipe
12 mm thick Armaflex or flexible
expanded rubber compound insulation to
18.80 mm Diameter darin pipe m 47
AIR CONDITIONING PANEL
c 3 Phase 240 Volt air-conditioning
electrical wiring installation to air-conditioning system including proving 10
Nos switch, any items of control wiring
and the like provision of all necessary
copper cables, wiring material cocealed
conduits fitting No 1
----------------------------------
d Upon completion allowed for the testing
the foregoing air-conditioning system,
make good and defect and leave the
whole fo the installation in perfect working
order to the sat isfaction of the engineerItem
BUILDER'S WORK
e 50 mm thick concrete Grade 15 as based
300 mm wide m3 0.1
TO COLLECTION:
-
BILLS OF QUANTITIESFOR:
INSULATION
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Refrigerant pipe for supply air
Filter dryer
Refrigerant pipe
for return airDrain pipe
Filter dryer
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a) BENDS
-in general, all bends used shall have radius of not less then
5 times the diameter.
b) TEES
steel piping
-tees in pipes 2 and above shall be slipped on or other
approved levelled end. In pipes under 2 1/2 diameter, teesmay be welded.
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Q.27 INSULATION TO DUCTWORK
1. Insulation to ductworkmeterstating types and size of the ducting.
2. Working insulation around ducting fittings, special fittings andancillariesin numbersextra over
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Q.28 INSULATION TO EQUIPMENT
1. Insulation to equipment enumerated stating overall sizeof the unit. Particular shall be given of any protection to theinsulation.
2. Providing detachable mattressesand working insulationaround special f i t t ingsand ancil lar ies shal l be deemed.
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Q.29 SUNDRY INSULATION
1. Loose insulation in trench, ducts, tank casings and like - shallbe given separately in cubic metres stating nature of materials.
2. Cellular concrete insulation in trench and ducts (groupedtogether) - shall be given in cubic metres stating mix of theconcrete.
3. Special protection or finish at opening through wall, valvechambers and the like shal l each b e descr ibed enumerated.
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Q.30 SUNDRIES
1. Testing each installation shall be given as an ITEM.
stating any required qualifications, no of stage tests in
addition to the final, purpose, instruments and appliances
required, special insurances etc.
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ITEM DESCRIPTION UNIT QTY RATEAMOUNT
(RM)
INSULATION TO PIPEWORK
a Supply Air Pipe25 mm thick close cell thermal insulation
expanded rubber compound or approved
equivalent to 18.8 mm Diameter
galvanised steel tubingm 218
b Drain Pipe
12 mm thick Armaflex or flexible
expanded rubber compound insulation to
18.80 mm Diameter darin pipe m 47
AIR CONDITIONING PANEL
c 3 Phase 240 Volt air-conditioning
electrical wiring installation to air-conditioning system including proving 10
Nos switch, any items of control wiring
and the like provision of all necessary
copper cables, wiring material cocealed
conduits fitting No 1
----------------------------------
d Upon completion allowed for the testing
the foregoing air-conditioning system,
make good and defect and leave the
whole fo the installation in perfect working
order to the satisfaction of the engineerItem
BUILDER'S WORK
e 50 mm thick concrete Grade 15 as based
300 mm wide m3 0.1
TO COLLECTION:
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BILLS OFQUANTITIES FOR:
TESTING
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BUILDERS WORK
Q.31 GENERALLY
1. Unless otherwise stated, all items of builders shall be given
in accordance with the appropriate section.
2. Builders works in connection with plumbing and mechanicalengineering installations shall be grouped together under an
appropriate heading.
MEASUREMENT RULES
AIR CONDITIONING INSTALLATIONS
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BUILDERS WORK
Q.32 PARTICULARLY
1. Excavation works.
2. Inspection chamber-V.6.
3. Bedding and pointing equipments or unit of equipment.
4. Cutting away for and making goods after the plumbing and
mechanical installations.5. Etc
MEASUREMENT RULES
AIR CONDITIONING INSTALLATIONS
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ITEM DESCRIPTION UNIT QTY RATEAMOUNT
(RM)
INSULATION TO PIPEWORK
a Supply Air Pipe
25 mm thick close cell thermal insulation
expanded rubber compound or approved
equivalent to 18.8 mm Diameter
galvanised steel tubing m 218
b Drain Pipe
12 mm thick Armaflex or flexible
expanded rubber compound insulation to
18.80 mm Diameter darin pipe m 47
AIR CONDITIONING PANEL
c 3 Phase 240 Volt air-conditioning
electrical wiring installation to air-conditioning system including proving 10
Nos switch, any items of control wiring
and the like provision of all necessary
copper cables, wiring material cocealed
conduits fitting No 1
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d Upon completion allowed for the testing
the foregoing air-conditioning system,
make good and defect and leave the
whole fo the installation in perfect working
order to the satisfaction of the engineerItem
BUILDER'S WORK
e 50 mm thick concrete Grade 15 as based
300 mm wide m3 0.1
TO COLLECTION:
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BILLS OFQUANTITIES FOR:
BUILDERS WORK
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2009 Sarajul Fikri Mohamed
TAKING OFF LIST
Project 1
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j
TAKING OFF LIST1) Preambles ( Note )
2) Equipment
Fan Coil Unit - NO.
- Wall Mounted Split Unit
- 10,000 BTUH
- 12,000 BTUH
- 20,000 BTUH- 25,000 BTUH
- Ceiling Cassette Split Unit
- 20,000 BTUH
Condenser Unit - NO.
- Multi Split Condenser- 30,000 BTUH
- 40,000 BTUH
- 35,000 BTUH
- 45,000 BT
Project 1
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- Split Condenser
- 10,000 BTUH
- 12,000 BTUH
- 20,000 BTUH
- 25,000 BTUH
3) Hanger - NO4) Pipework - M
- Refrigerant pipe
- Condensate pipe
5) Insulation of Pipework - M
6) Electrical Wiring - ITEM7) Builders Work - ITEM
8) Maintenance - ITEM
9) Testing - ITEM
j
TAKING OFF LIST
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NO QUERY REMARK
1 Brand of packaged unit not stated - York brand Model ACC 435
2 Type of refrigerant - Refrigerant R-22
3 Thickness and type of insulation-pipe
- 50 mm Thick fibreglass
4 Size of refrigerant pipe - 50 mm Diameter
QUERY LIST
AIR CONDITIONING INSTALLATIONS
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AIR CONDITIONINGINSTALLATIONSSPLIT UNIT
Fakulti Alam Bina
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INDOOR: FCU
AIR COND
SCHEDULE
SCHEMATIC VIEW
OUT DOOR : CONDENSORUNIT
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THANK YOU