ICP EDD2X18BA1, EDD2X18BAT1, EDD2X24BA1, EDD2X24BAT1, EDD2X24FA1 Installation Guide

Theseinstructionsmustbereadandunderstoodcompletelybeforeattemptinginstallation.

It is important that the Blower and Duct System be properly sized to allow the system to operate at full capacity. Poorly
designed systems will not give satisfactory cooling or economy. They may even shorten the service life of the

compressor in the outdoor unit.

Safety Labeling and Signal Words

DANGER, WARNING, CAUTION, and
NOTE

The signal words DANGER, WARNING, CAU-
TION, and NOTE are used to identify levels of haz-

ard seriousness. The signal word DANGER is only
used on product labels to signify an immediate haz-
ard. The signal words WARNING, CAUTION, and

NOTE will be used on product labels and through-
out this manual and other manuals that may apply

to the product.

DANGER - Immediate hazards which will result in

severe personal injury or death.
WARNING - Hazards or unsafe practices which

could result in severe personal injury or death.
CAUTION - Hazards or unsafe practices which

may result in minor personal injury or product or
property damage.

NOTE - Used to highlight suggestions which will
result in enhanced installation, reliability, or opera-

tion.

Signal Words in Manuals

The signal word WARNING isused throughout this

manual in the following manner:

The signal word CAUTION is used throughout this

manual in the following manner:

Signal Words on Product Labeling
Signal words are used in combination with colors

and/or pictures on product labels.

TABLE OF CONTENTS

Installation .................................. 2 - 4

Condensate Drain ........................... 4 - 5

Waste Line Connection .......................... 5

Refrigerant Line Connections .................... 6

Refrigerant Metering Device ..................... 7

Check and Adjust Airflow ..................... 7 - 8

Start-Up Procedure ............................ 9

R-410A Quick Reference Guide .................. 9

ELECTRICAL SHOCK HAZARD
Failure to turn off electric power could result in

personal injury or death.
Before installing or servicing system, turn off

main power to the system. There may be more than
one disconnect switch, including accessory heat-
er(s).

484 01 3001 03 Nov 2007

INSTALLATION

EDA Loose Coils are shipped with a metal collar plate
approximately the same size as the drain pan. The collar
plate must be installed between the drain pan and the

furnace or air handler cabinet to prevent condensation

inside the cabinet. Position the collar plate as shown in
Figure 1, with the flanges pointing down, towards the

furnace or air handler cabinet. Size the plenum or
fabricate spacers to seal against the outside of the collar

and prevent air bypass.

Figure 1 [ EDA Collar Plate

Collar Plate
under drain pan

Flanges down

EDM and EDD Cased Coils are designed to fit furnaces
and air handlers of the same width with no modifications.

When an EDM or EDD Cased Coil is applied to a narrower

or wider furnace or air handler, a field fabricated adapter is
required. Refer to Figure 2 for examples of field fabricated

adapters.
EDM coils are designed for installation in any position -

upflow, downflow, horizontal left, or horizontal right -

without modification to the drain pans or casing. The

drain pans remain in the same positions in the casing no
matter which direction the air moves.

PRODUCT DAMAGE HAZARD
Failure to follow this caution may result in product

damage.
When a narrower coil is installed on a wider gas

furnace (upflow, downflow, or horizontal), a field
fabricated adapter must create 3" minimum space

between furnace and coil to allow airflow to dis-

tribute evenly.

When a loose coil is installed on any GAS furnace,

the drain pan must be at least 2"away from the fur-

nace heat exchanger to avoid drain pan damage.
When a loose coil is installed on any OIL furnace,

the drain pan must be at least 5" away from the fur-

nace heat exchanger to avoid drain pan damage.

PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in proper-

ty damage
A field fabricated auxiliary drain pan, with a sepa-

rate drain is REQUIRED for all installations over a
finished living space or in any area that may be

damaged by overflow from a restricted main drain
pan. In some localities, local codes require an aux-
iliary drain pan for ANY horizontal installation.

2 484 01 3001 03

Figure2 1 Adapters for Coils Wider or Narrower than Furnace or Air Handler

0 0

NARROWER'

COIL

ADAPTER

(FIELD SUPPLIED)

(FIELD SUPPLIED)

WIDER FURNACE

NOTE: When coil is used in a heat pump application with
electric heat, coil must be installed upstream of the

electric heater (refer to Figure 3). This prevents electric
heat from driving up refrigeration system pressure during

heating cycle.
NOTE: When coil is installed to a gas or oil furnace, coil

must be installed downstream of the furnace heat
exchanger (refer to Figure 4). This reduces condensate

formation in the furnace heat exchanger during the
cooling cycle. When the gas or oil furnace is in downflow

application on a combustible floor, Sub-Base accessory
must be installed between coil and floor. Refer to

Product Specification literature for accessory part
number.

O

O

WIDER COIL

ADAPTER

NARROWER

FURNACE

NOTE: When coil is installed with a Heat Pump in
conjunction with a fossil fuel heating system, a Fossil

Fuel Kit must be used. Refer to Product Specification
literature for kit part number.

NOTE: On furnace installations where the coil is located
in an unconditioned space, nuisance sweating may

occur in the area around the cabinet to supply duct joint.

Wrap the joint between the cabinet and the supply duct
with a 6" wide piece of insulation with vapor barrier.

Figure 3 1

UPFLOW POSITION

DOWNFLOW POSITION HORIZONTAL LEFT POSITION

ELECTRIC HEATER

Heat Pump Coil Position Relative to Electric Heat

HORIZONTAL RIGHT POSITION

BLOWER

38- 20-19a

484 01 3001 03 3