Trane E4AH5E24A1J30A Manuale utente

Installation

Manual

High Efficiency Air Handlers

2-5 Ton Capacity

R-410A TXV Inside

E4AH5E48A1K30A

E4AH5E60A1K30A

NOTE: Appearance of unit may vary.

Installation must be performed in accordance

with the requirements of NEC and CEC by

authorized personnel only.

All phases of this installation must comply with National, State and Local Codes.

This document is customer’s property and is to remain with this unit. Please return it to customer with

service information upon completion of work.

These instructions are intended as an assist to qualified and licensed personnel for proper installation,

adjustment and operation of ECM air handler units. Read it thoroughly before attempting installation or

service work.

Failure to follow these instructions may result in fire, electrical shock, property damage,

personal injury or death.

The instructions do not cover all varitions in systems or provide for every possible contingency to be met

in connection with the installation.

88-E4AH5001-1B-EN

Table of contents

1. Safety.................................................................................... 3

2. Dimensions .........................................................................5

3. Applications........................................................................ 7

4. Electrical Wiring.............................................................12

5. Airflow Performance ....................................................24

6. Ductwork........................................................................... 25

7. Air Filter............................................................................. 26

8. Indoor Unit Function ....................................................27

9. Service Manual .............................................................. 29

1. Safety

Read the following safety instructions before installing the unit or doing service work.

WARNING may cause personal death or serious injury.

CAUTION may lead to injury or structural damage under some conditions.

THIS PRODUCT CAN EXPOSE YOU TO CHEMICALS

INCLUDING LEAD, WHICH ARE KNOWN TO THE

STATE OF CALIFORNIA TO CAUSE CANCER AND

BIRTH DEFECTS OR OTHER REPRODUCTIVE

HARM.

FOR MORE INFORMATION GO TO

www.p65Warnings.ca.gov

WARNING

FIRE HAZARD!

WITH HEAT PUMP INSTALLATIONS, SOME ELECTRIC

HEATERS ARE POSITION SENSITIVE. USE ONLY

APPROVED HEATER TO UNIT COMBINATIONS PER

NAMEPLATE AND SET BLOWER AIRFLOW SPEED

PER NAMEPLATE INSTRUCTIONS.

WHEN HEATERS COME SUPPLIED WITH CIRCUIT

BREAKERS, USE 240/208 VOLT SUPPLY POWER WITH

120 VOLTS (NOMINAL) TO GROUND.

FAILURE TO FOLLOW THE ABOVE COULD RESULT IN

DEATH, SERIOUS INJURY OR EQUIPMENT DAMAGE.

WARNING

HAZARDOUS VOLTAGE!

DISCONNECT ALL ELECTRIC POWER INCLUDING

REMOTE DISCONNECTS BEFORE SERVICING.

INSURE THAT ALL MOTOR CAPACITORS HAVE

DISCHARGED STORED VOLTAGE.

FAILURE TO DO THE ABOVE COULD RESULT IN

DEATH OR SERIOUS INJURY.

WARNING

SHARP EDGES!

AVOID CONTACT WITH COlL FINS AND SHEET METAL

EDGES.

FAILURE TO FOLLOW THE ABOVE COULD RESULT IN

DEATH OR SERIOUS INJURY.

WARNING

FLAMMABLE VAPORS!

THE USE AND STORAGE OF GASOLINE OR OTHER

FLAMMABLE VAPORS AND LIQUIDS IN OPEN

CONTAINERS IN THE VICINITY OF THIS FURNACE CAN

RESULT IN EXPLOSION OR FIRE.

FAILURE TO FOLLOW THE ABOVE COULD RESULT IN

DEATH OR SERIOUS INJURY, OR PROPERTY DAMAGE.

WARNING

FIBERGLASS WOOL EXPOSURE!

REFER TO OWNER'S INFORMATION MANUAL

PROVIDED WITH THIS UNIT FOR PROPER

INSTALLATION, OPERATING AND MAINTENANCE

INSTRUCTIONS.

DISTURBING THE INSULATION IN THIS PRODUCT

DURING INSTALLATION, MAINTENANCE OR REPAIR

WILL EXPOSE YOU TO AIRBORNE PARTICLES OF

GLASS WOOL FIBERS AND CERAMIC FIBERS KNOWN

TO THE STATE OF CALIFORNIA TO CAUSE CANCER

THROUGH INHALATION. GLASS WOOL FIBERS COULD

ALSO CAUSE RESPIRATORY, SKIN OR EYE IRRITATION.

WARNING

PRESSURIZED REFRIGERANT! —

IMPROPER REFRIGERANT!

SYSTEM CONTAINS OIL AND REFRIGERANT UNDER

HIGH PRESSURE. RECOVER REFRIGERANT TO

RELIEVE PRESSURE BEFORE OPENING THE SYSTEM.

DO NOT USE NON-APPROVED REFRIGERANTS OR

REFRIGERANT SUBSTITUTES OR REFRIGERANT

ADDITIVES. SEE OUTDOOR UNIT NAMEPLATE FOR

REFRIGERANT TYPE.

FAILURE TO FOLLOW THE ABOVE COULD RESULT IN

DEATH, SERIOUS INJURY OR EQUIPMENT DAMAGE.

WARNING

USE COPPER CONDUCTORS ONLY!

UNIT TERMINALS ARE NOT DESIGNED TO ACCEPT

OTHER TYPES OF CONDUCTORS.

FAILURE TO DO THE ABOVE COULD RESULT IN

EQUIPMENT DAMAGE.

WARNING

ROTATING FAN BLADE!

DISCONNECT ALL ELECTRIC POWER INCLUDING

REMOTE DISCONNECTS BEFORE SERVICING.

FAILURE TO DISCONNECT POWER BEFORE

SERVICING CAN CAUSE SEVERE PERSONAL INJURY

OR DEATH.

WARNING

2. Dimensions

NOTE: 25'' CLEARANCE IS REQUIRED IN THE FRONT OF THE UNIT FOR FILTER AND COIL

MAINTENANCE

Figure 2-1 Unit dimensions

Inlet (Front View) Primary drain

connection 3/4'' Female pipe thread (NPT)Inlet (Left Side View)

Gas Line

Liquid Line

Table 1. Unit Dimensions

Model

Dimensions (in.)

Liquid Line

Connection

Gas Line

Connection

E4AH5E24A1J30A

E4AH5E36A1J30A

46-1/2

19-1/4

3/8

3/4

E4AH5E48A1K30A

E4AH5E60A1K30A

24-1/2

22-3/4

3/8

7/8

Select a solid and level site, keep enough space for proper installation and maintenance.

Adjust motor speed tap on indoor main control board (MCB) to select correct air flow according to

blower performance table.

a) Horizontal position

b) Vertical position

Figure 2-2 Clearance requirement

3. Applications

3.1 Vertical up-flow and Horizontal right-flow

Vertical up-flow and horizontal right-flow configurations are the factory settings on all models.

If return air is to be ducted, install duct flush with floor. Use fireproof resilient gasket 1/8’’ to 1/4’’ thick

between the ducts, unit and floor. Set unit on floor over opening.

IMPORTANT

Lightly tighten the drain connections so they do not leak.

Using excessive force may cause damage to the drain connections. Torque applied to drain

connections should not exceed 10.ft.lbs.

Figure 3-1 Dimensions for front connection coil

3.00

1.75

3.00”

1.70”

1.40”

2.36

2.70

3.96

3.1.1 Installation of drainpipe

1.When the air handler is installed vertically, please block the upper drainage hole with a cover. The

lower right of the drainage hole is connected with the drainage pipe, and the lower left of the drainage

hole is connected with the overflow pipe that should be exposed to the air; lf the pipe ① is draining,

which means the pipe ② is blocked. Contact maintenance personnel as soon as possible.

2. When installing the air handler lying down, the upper drainage hole is covered the lower left of the

drainage hole is connected with the drainage pipe, the lower right of the drainage hole is connected

with the overflow pipe that should be exposed to the air. lf the pipe ① is draining, which means the

pipe ② is blocked. Contact maintenance personnel as soon as possible.

Figure 3-3 Horizontal right

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Keep the coil connections sealed until refrigerant connections are made. Refer to condensing unit

installation instructions for details on pipe size and insulation.

Coil is shipped with nitrogen. Evacuate the system before charging with refrigerant.

Make sure the refrigerant pipes layout do not block service access.

Purge the refrigerant pipes and indoor coil with dry nitrogen while brazing.

Use a wet rag or an approved heat paste to protect the TXV sensing bulb during the brazing

process.

Condensate Drain Connection

Use a thin layer of Teflon paste, silicone or Teflon tape when making drain fitting connections.

Do not over tighten fittings resulting in splitting pipe connections on the drain pan.

Figure 7-1 Condensate drain trap

Make sure the drain pipes layout do not block service access. Minimum clearance of 25’’ is required

for filter, coil or blower removal and service access.

Ensure the unit is level or pitched slightly toward primary drain connection so that water will drain

smoothly from the pan. All horizontal drain pipes must be pitched downward away from the unit a

minimum of 1/8” per foot of line to ensure proper drainage.

Do not reduce drain pipe size less than connection size provided on condensate drain pan.

Do not connect condensate drain pipe to a closed or open sewer pipe.

The drain pipe should be insulated where necessary to prevent sweating and damage due to

condensate forming on the outside surface of the line.

Make provisions for disconnecting and cleaning of the primary drain pipe if it become necessary.

Install a 3 inch trap in the primary drain pipe as close as possible to the unit. Make sure that the top

of the trap is below connection to the drain pan to allow complete drainage of pan.

Auxiliary drain pipe should be connected to a place where it will be noticeable. Homeowner should

be warned that a problem exists if water begins running from the auxiliary drain pipe.

Test condensate drain pan and drain pipe after installation is complete. Pour enough water into

drain pan, make sure that the drain pan is draining completely, no leaks are found in drain pipe

fittings, and no water is draining from the termination of the primary drain pipe.

CONDENSATE DRAIN TRAP

UNIT

TO APPROVED

DRAIN

DO NOT OPERATE UNIT WITHOUT

CONDENSATE DRAIN TRAP.

DO NOT OVERTIGHTEN DRAIN FITTING

UNIT MUST BE SLIGHTLY PITCHED

TOWARD DRAIN CONNECTION

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