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)

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

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.

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.

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

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

UAT-C_(i) Fan Performance Chart

Fan Performance Chart

UAT150C

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

Fan Performance Chart UAT-C_(i)

UAT180C

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

RPM

2454 2600 2800 3000 3200 3400 3630 L/S

1100

1200

1300

1400

2.2 kW

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