Trane E4AH5E24A1J30A User manual

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

2
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

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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

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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

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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

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Table 1. Unit Dimensions
Model
Dimensions (in.)
H
W
D
A
Liquid Line
Connection
Gas Line
Connection
E4AH5E24A1J30A
E4AH5E36A1J30A
46-1/2
21
21
19-1/4
3/8
3/4
E4AH5E48A1K30A
E4AH5E60A1K30A
56
24-1/2
21
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

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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

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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.
A

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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