Lennox AUD24AH2/A-D(U) User manual

Installation Instructions

Original Instructions

Air Conditioners

Air Handlers

Models:

AUD24AH2/A-D(U)

AUD36AH2/A-D(U)

AUD48AH2/A-D(U)

AUD60AH2/A-D(U)

To Users

(1) This appliance can be used by children aged from 8 years and above and persons

with reduced physical, sensory or mental capabilities or lack of experience and

knowledge if they have been given supervision or instruction concerning use of

the appliance in a safe way and understand the hazards involved. Children shall

not play with the appliance. Cleaning and user maintenance shall not be made by

children without supervision.

(2) In order to ensure reliability of product, the product may consume some power

under stand-by status for maintaining normal communication of system and

preheating refrigerant and lubricant. If the product is not to be used for long, cut off

the power supply; please energize and preheat the unit in advance before reusing

it.

(3) Please properly select the model according to actual using environment;

otherwise it may impact the using convenience.

(4) This product has gone through strict inspection and operational test before leaving

the factory. In order to avoid damage due to improper disassembly and inspection,

which may impact the normal operation of unit, please do not disassemble the unit

by yourself. You can contact with the special maintenance center of our company

if necessary.

(5) When the product is faulted and cannot be operated, please contact with our

maintenance center as soon as possible by providing the following information.

1)Contents of nameplate of product (model, cooling/heating capacity, product No.,

ex-factory date).

2)Malfunction status (specify the situations before and after the error occurs).

(6) All the illustrations and information in the instruction manual are only for reference.

In order to make the product better, we will continuously conduct improvement

and innovation. We have the right to make necessary revision to the product from

time to time due to the reason of sales or production, and reserve the right to

revise the contents without further notice.

Thank you for selecting AC PRO’s product. Please read this instruction manual

carefully before installing and using the product, so as to master and correctly use the

product. In order to guide you to correctly install and use our product and achieve

expected operating effect, we hereby instruct as below:

(7) If the supply cord is damaged, it must be replaced by the manufacturer, its service

agent or similarly qualified persons in order to avoid a hazard.

Exception Clauses

Manufacturer will bear no responsibilities when personal injury or property loss is

caused by the following reasons:

(1) Damage the product due to improper use or misuse of the product.

(2) Alter, change, maintain or use the product with other equipment without abiding by

the instruction manual of manufacturer.

(3) After verification, the defect of product is directly caused by corrosive gas.

(4) After verification, defects are due to improper operation during transportation of

product.

(5) Operate, repair, maintain the unit without abiding by instruction manual or related

regulations.

(6) After verification, the problem or dispute is caused by the quality specification or

performance of parts and components that produced by other manufacturers.

(7) The damage is caused by natural calamities, bad using environment or force

majeure.

(8) AC PRO assumes no responsibility for personal

injury, property loss or equipment damage caused by improper installation and

commissioning, unnecessary maintenance, or not following relevant national rules

and regulations, industrial standards and requirements in this instruction manual.

(9) The final right to interpret for this instruction manual belongs to AC PRO.

Contents

1 Safety Precautions ............................................................ 1

2 Product Introduction ......................................................... 2

2.1 Product Description................................................................2

2.2 Optional Accessories..............................................................2

2.3 Physical Dimension................................................................3

2.4 Names of Main Parts..............................................................4

2.5 General Information ...............................................................4

2.6 Dip switch configuration .........................................................5

2.7 Fan Performance Data ........................................................6

3 Preparative for Installation................................................ 7

3.1 Pre-Installation Instruction......................................................7

3.2 Important Safety Instructions..................................................8

4 Installation........................................................................ 10

4.1 Unit Inspection .....................................................................10

4.2 Location ...............................................................................10

4.3 Piping Work..........................................................................11

4.4 Condensate Removal...........................................................13

4.5 Ductwork..............................................................................14

4.6 Electric Heater .....................................................................14

4.7 Electrical Installation ............................................................16

5 Installation Check and Trial Run .................................... 21

5.1 Checking Items after Installation ..........................................21

5.2 Trial Run ..............................................................................22

6 Common Malfunction and Elimination .......................... 23

7 Maintenance and Care..................................................... 25

7.1 Drain Pipe ............................................................................25

7.2 Notice before Seasonal Use.................................................25

7.3 Maintenance after Seasonal Use .........................................25

7.4 Parts Replacement...............................................................25

8 After-Sales Service .......................................................... 25

This marking indicates that this product should not be disposed with other household

wastes throughout the EU. To prevent possible harm to the environment or

human health from uncontrolled waste disposal, recycle it responsibly to

promote the sustainable reuse of material resources. To return your used

device, please use the return and collection systems or contact the retailer

where the product was purchased. They can take this product for

environmental safe recycling.

Air Handlers

1 Safety Precautions

This product can’t be installed at corrosive, inflammable or explosive environment

or the place with special requirements, such as kitchen. Otherwise, it will affect the

normal operation or shorten the service life of the unit, or even cause fire hazard or

serious injury. As for above special places, please adopt special air conditioner with

anti-corrosive or anti-explosion function.

Improper installation, adjustment, alteration, service, maintenance, or use can

cause explosion, fire, electrical shock, or other conditions which may cause death,

personal injury, or property damage. Consult a qualified installer, service agency, or

your distributor or branch for information or assistance. The qualified installer or agency

must use factory--authorized kits or accessories when modifying this product. Refer to

the individual instructions packaged with the kits or accessories when installing. Follow

all safety codes. Wear safety glasses, protective clothing, and work gloves. Use

quenching cloth for brazing operations. Have fire extinguisher available. Read these

instructions thoroughly and follow all warnings or cautions included in literature and

attached to the unit. Consult local building codes and National Electrical Code (NEC)

for special requirements. Recognize safety information. This is the safety--alert

symbol .

When you see this symbol on the unit and in instructions or manuals, be alert to the

potential for personal injury. Understand these signal words: DANGER, WARNING,

CAUTION and NOTICE. These words are used with the safety--alert symbol.

Indicates a hazardous situation that, if not avoided, will result in

death or serious injury.

Indicates a hazardous situation that, if not avoided, could result

in death or serious injury.

Indicates a hazardous situation that, if not avoided, may result

in minor or moderate injury.

Indicates important but not hazard-related information, used to

indicate risk of property damage.

Air Handlers

Electrical shock hazard:

Failure to follow this warning could result in personal injury or death.

Before installing, modifying, or servicing system, main electrical disconnect switch

must be in the OFF position. There may be more than 1 disconnect switch. Lock out

and tag switch with a suitable warning label.

2 Product Introduction

2.1 Product Description

2.2 Optional Accessories

Indoor unit accessories

No.

Name

Appearance

Q'ty

Usage

1 3/8 CPC 1

Copper Pipe

Connector

Liquid Line

2 3/4 CPC 1

Copper Pipe

Connector Gas

Line

The AC PRO air handler offer the perfect combination of superior product quality,

operating efficiency, operating sound levels and value for money. The condensing unit

uses the environmentally friendly refrigerant R410A, which is chlorine-free to help

prevent damage to the ozone layer.

Air Handlers

2.3 Physical Dimension

Unit: inch

Model

Dimension

$UD24AH2/A-D(U)

AUD36AH2/A-D(U) 21-1/4 21-1/4 48-1/4 11-5/8 20

AUD48AH2/A-D(U)

AUD60AH2/A-D(U) 24-3/4 21-1/4 57 11-5/8 20

Clearance

Side and back 0”

Front 24” for servicing.

Air Handlers

2.4 Names of Main Parts

2.5 General Information

Model

Cooling capacity(ton)

Optional electric heater (kW)

AUD24AH2/A-D(U)

2.0

5/8/10

AUD36AH2/A-D(U)

3.0

5/8/10

AUD48AH2/A-D(U)

4.0

10/15/20

AUD60AH2/A-D(U)

5.0

10/15/20

Model Motor @ 230V ~, 60Hz

FLA

AUD24AH2/A-D(U)

AUD36AH2/A-D(U) 1/2 2.1

AUD48AH2/A-D(U)

AUD60AH2/A-D(U) 1 3.2

Unit: inch

Model

Filter size

AUD24AH2/A-D(U)

AUD36AH2/A-D(U) 19.29×20.31×.59

AUD48AH2/A-D(U)

AUD60AH2/A-D(U) 20.6×20.31×.59

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