Daikin UAT150C User manual

TECHNICAL MANUAL
Packaged Air Conditioner
Rooftop C Series
UAT-C series
— Cooling only [50Hz] —
R22

UAT-C_(i) Table of Contents
Table of Contents
Nomenclature......................................................................................................................1
Features...............................................................................................................................2
Fan Performance Chart......................................................................................................6
Fan Performance Table....................................................................................................10
Engineering & Physical Data...........................................................................................11
Performance Data.............................................................................................................12
Outlines & Dimensions....................................................................................................16
Wiring Diagrams...............................................................................................................18
Installation.........................................................................................................................26
Specification Guide..........................................................................................................28
Engineering & Physical Data (Arabic)............................................................................29
Specification Guide (Arabic) ...........................................................................................30

Nomenclature UAT-C_(i)
1
Nomenclature
YUAT 300 CX1
Revision/Specification
9: Mechanical Control
“ ”: PCB Control
Power Supply
Y1: 50Hz / 3Ph / 380-415V
Product Type
UAT: Rooftop
Product Specification
Variation
G: Gold Fin (Outdoor Coil)
“ ”: Bare Fin (Outdoor Coil)
Size
150: 150,000 Btu/h
300: 300,000 Btu/h
Product series
C: C Series
G 9
Product Origin
X: OYLM

2
UAT-C_(i) Features
Features
Key Features
High Energy Efficiency
In line with the market trend of moving towards high
energy efficiency products, the UAT-C series is
developed with the target of high EER.
Model UAT150C UAT180C
Gross EER @ 35°C
(Btu/hr /W) 11.5 11.4
Efficiency @ 48°C
(kW/TR) 1.51 1.55
Model UAT240C UAT300C
Gross EER @ 35°C
(Btu/hr /W) 11.1 11.1
Efficiency @ 48°C
(kW/TR) 1.62 1.57
Note: Efficiency at 48°C is in compliance with the Kuwait MEW
minimum requirement of 1.7kW/TR.
Wide Operating Range
The UAT-C series rooftops are specifically designed
for High Ambient Application and capable of operating
at an outdoor ambient of up to 54°C.
Lightweight and compact
The lightweight and compact design of UAT-C series
allows for ease of transportation and installation.
Separate Service Panels
The unit is designed with two separate service panels
for easy electrical box servicing.
Independent Refrigerant Circuit
Each unit is designed with two independent refrigerant
circuits, where user can control each individual system
separately.
This also allows the unit to run at part load when lower
cooling capacity is required.
Air Discharge and Air Return
The UAT-C series is available in Horizontal Air
Discharge only, designed with Air discharge on the
top and return air on the bottom for easy duct design.

3
Features UAT-C_(i)
Component Features
Compressor
High efficiency, low noise, and hermitically sealed
SCROLL compressors are used in the UAT-C series
to give a better performance.
All compressors are equipped with an internal
overload protection. Crankcase heaters are installed
as standard in each compressor.
Evaporator Coil
Evaporator coils are manufactured from seamless
inner grooved copper tubes mechanically bonded to
aluminium fins to ensure optimum heat transfer.
All coils are tested against leaks by Nitrogen holding
at 609psig and highly precise Helium leak test at
235psig.
ALL standard coils are 3-4 rows / 14-16 FPI, 3/8”
(9.52mm) O.D. tubes.
Evaporator Fan
The unit is designed with belt driven evaporator
motor, which allows for change of pulley on site to
accommodate different static pressure and air flow
requirement.
Condenser Coil
Condenser coils are manufactured from seamless
inner grooved copper tubes mechanically bonded to
aluminium fins to ensure optimum heat transfer. All
coils are tested against leaks by Nitrogen holding
at 609psig and highly precise Helium leak test at
235psig.
ALL standard coils are up to 3 rows / 14-16 FPI, 3/8”
(9.52mm) O.D. tubes.
Options:
Hydrophilic Gold Fin coating (NA549) condenser coil
is offered as option, which has longer life span under
corrosive environment.
Condenser Fan/Motor
Fans are of propeller type, direct driven by
weatherproof electrical induction motors. Condenser
fan motors are rated IP55 protection index with
class F insulation class and is designed with dust
proof bearing to ensure the reliability of the motor
and smooth operation all year round.
Casing/Structure
The unit casing used in UAT-C series is made of zinc
coated galvanized steel sheets. It is further coated
with an electrostatic powder coat, oven-baked for a
tough and lasting weather resistant finish. Zinc plated
screws are used to further reduce the possibility of
unit rusting.

4
UAT-C_(i) Features
Refrigerant Circuit
The UAT-C series is designed with the ability to
operate at partial load depending on the requirement
of the application.
Each refrigerant circuit has an independent Thermal
Expansion Valve (TXV), Filter Drier and High / Low
Pressure Switch.
Additional valves are provided for site installation of
Pressure Gauge and Low Ambient Kit.
Filter
Saranet pre-filter is available as standard in the unit
to prevent foreign particles entry into the unit.
A 2” filter rail is installed in the unit to accommodate
additional site installed filter.
Electrical Control Panel
The control panel is protected by a panel cover
to prevent nuisance changes by unauthorized
personnel.
Two control options are available as factory installed.
Mechanical Control
Mechanical Control option is suitable for wiring with
field installed thermostat or building management
system. The unit is designed where each refrigerant
system can be controlled separately, thus allowing
Features:
• 24 volts transformer is provided for field installed
thermostat
• Individual compressor, condenser fan motor
and evaporator fan motor, with over current
protection
• Anti recycle timer to prevent the compressor
from rapid and short cycling
• Delay timer to prevent both compressor turning
on the same time
• Control circuit fuses

5
Features UAT-C_(i)
Microprocessor Based Control
The control system consists of a microprocessor
controller and a user interface remote controller. The
controller offers the following features:
• Built in anti recycle timer to prevent compressor
short cycling
• Sequential control of compressor, condenser
motor and evaporator motor
• Intelligent control to ensure balance usage of
compressor in the system
• Auto random restart and memory backup of
last setting in case of interrupted power supply
• Energy saving function
• Sensor fault indication
With the remote wired controller connected, the
following features can be performed:
• Temperature setting
• 7 days programmable timer
• Error indication on the remote controller for
easy troubleshooting

6
UAT-C_(i) Fan Performance Chart
Fan Performance Chart
UAT150C
0
100
200
300
400
500
600
700
3600 4100 4600 5100 5600
Air Flow
Total Static Pressure (Pa)
800
700
1000
Internal
Static
Pressure
Standard
Point
CFM
900
1.5 kW
3.0 kW
1700 1900 2100 2300 2500 2642 L/S
1100
1200
1300
1400
RPM
2.2 kW

7
Fan Performance Chart UAT-C_(i)
UAT180C
0
100
200
300
400
500
600
700
5200 5700 6200 6700 7200 7700
Air Flow
Total Static Pressure (Pa)
800
700
1000
Internal
Static
Pressure
Standard
Point
CFM
900
3.7 kW
3.0 k
W
RPM
2454 2600 2800 3000 3200 3400 3630 L/S
1100
1200
1300
1400
2.2 kW