ICP EF08B1500A1, EF12F1900A, EF12F1900A1, EF16J2200A, EF20N2600A Installation Guide

INSTA LATION INSTRUCTIONS

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Models

EF08B1500A1, A2 EF12F1900A

EF16J2200A EF20N2600A

With

AMF001NHA

Accessory No Heat Kit

Use ONLY factor'

listed electric heaters.

ECTRIC

FURNACE

SafetyLabeling and SignalWords

Danger,Warning and Caution

The signal words DANGER, WARNING and CAUTION are used to identify levels of hazard seriousness. The

signal word DANGER is only used on product labels to signify an immediate hazard. The signal words WARN- ING and CAUTION will be used on product labels and

throughout this manual and other manuals that may ap-

ply to the product. DANGER - Immediate hazards which WILL result in se-

vere personal injury or death.

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

CAUTION - Hazards or unsafe practices which COULD result in minor personal injury or product or property

damage.

Safety Labeling and Signal Words Coy

General Information / Installation ............ 2

Vertical Installations ........................ 2

Horizontal Installations ..................... 3

Condensate Drain .......................... 5

Refrigerant Orifice and Lines ................ 5

Electrical Wiring ............................ 6

Checks and Maintenance .................... 7

Blower Performance ........................ 8

Signal Words in Manuals The signal word WARNING is used throughout this

manual in the following manner:

The signal word CAUTION is used throughout this manual in the following manner:

CAUTION

Product Labeling

Signal words are used incombination with colors and/or pictures on product labels.

Printed in U.S.A. 442 01 2201 02

6-99

_ Installation Instructions Electric Furnace I

Figure 1 Dimensions and Clearances

14-3/8 " (EF08) 17-7/8 " (EF12)

21-1/2" (EF16) 25-1/8 " (EF20)

3/4"

LowVoltage PilotH01e

CLEARANCES

Alternate

LineVoltage PilotHole

DrainConnections For Horizontal

Main3/4 Fpt Overflow3/4 FPT

Main/OverflowDrains - 3/4 FPT

LineVoltage PilotHole

45" (EF08-12)

54" (EF16-20)

Suction- Liquid

NO HEATERS

All Sides .................................. O"

From Supply Duct .......................... 0"

Recommended Service From Front .......... 20"

(Service for blower, filter if installed)

WITH HEATERS

All Sides .................................. O"

From First Three

Feet of Supply Duct to Combustibles ........ 1"

From Duct after Three Feet ................. 0"

Recommended Service From Front .......... 20"

(Service for blower, filter, heaters if installed)

Fire Hazard

16-3/8 '' (EF08) 19-7/8 '' (EF12)

FilterDoor

23-1/2" (EF16) 27-1/8'' (EF20)

38-20-17

GeneralInformation

Installation or repairs made by unqualified persons can result in hazards to you and others. Installation MUST

conform with local building codes and with the National Electrical Code NFPA70 current edition.

The information contained in this manual is intended

for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments.

Failure to carefully read and follow all instructions in

this manual can result in equipment malfunction,

property damage, personal injury and/or death.

THESE INSTRUCTIONS ASSUME THAT A TYPICAL INSTAL-

LATION WILL INCLUDE ELECTRIC HEAT AND A COIL. BA-

SIC INSTRUCTIONS ARE PROVIDED BUT THE INSTALLER WILL HAVE TO REFER TO INSTRUCTIONS FOR OTHER AC-

CESSORIES FOR MORE COMPLETE INFORMATION.

When heaters are installed maintain clear- ances from combustible materials as speci-

fied on unit rating plate.

Failure to do so can result in fire, property

damage, personal injury or death.

The blower cabinet may be used as an electric furnace or for cool- ing or heat pump operation with or without electric heat. The cabi-

net can be installed in an upflow, downflow or horizontal position

(Figure 2). Horizontal installations require a horizontal kit for prop-

er coil support and drain pan. Downflow installations require a subbase kit which provides proper clearances and a support to

install a coil.These units are not shipped with air filters installed.

Filter must be field supplied, either washable or disposal type.

Washable filters are available as an accessory.

Location

Select the best position which suits the installation site conditions. The location should provide adequate structural support, space in

the front of the unit for service access, clearance for return air and supply duct connections, space for refrigerant piping connections

and condensate drain line connections, and clearance for filter re- moval.

NOTE: Internal filter can be accessed from separate filter door. If the filter can NOT be easily accessed, a remote filter is recom-

mended. Refer to ACCA Manual D for remote filter sizing.

Ifthe unit is located in an area of high humidity, nuisance sweating

of casing may occur. On these installations a wrap of 2" fiberglass insulation with a vapor barrier should be used.

442 01 2201 02

I Electric Furnace Installation Instructions I

UpflowInstallations

The unit is ready to install in the upflow position without modifica-

tions. The unit MUST be supported on the bottom ONLY and set on a

supporting frame or shelf. Use screws through the bottom to an- chor to supporting frame.

DownflowInstallations

Refer to instructions with Subbase Kit.

Figure 2 Airflow Positions

UPFLOW POSITION

HEATER

BLOWER

DOWNFLOW POSITION

FILTER

Coil supop_._

Subbase

HF-_'_R

\ /

FILI_R

38-20-19

Non-DuctedReturn Air Closet Installation

The cabinet can be installed in a closet with a false bottom to form a return air plenum, or mounted on an open platform inside the closet. Platform should be high enough to provide a free (open)

area for adequate return airflow into the bottom of the cabinet. The open area can be on the front side or a combination of front

and sides, providing there is clearance on the sides between cabi-

net and closet. Refer to ACCA Manual D for sizing and free

area recommendations.

NOTE: Local codes may limit application of systems without a

ducted return to single story dwellings.

Horizontal Leftand Right Installations

No Coil Ifa coil is not being installed, the cabinet can be placed on either

side for horizontal airflow as shipped. Refer to instructions with electric heat for instructions on horizontal applications.

With Coil All units must have the horizontal drain pan kit installed for either

left or right hand applications. For installation of the drain pan, re-

fer to the installation instructions included with the horizontal drain

pan kit, and the following.

CAUTION

A field-fabricated auxiliary drain pan, with a seperate drain is REQUIRED for all installations over a finished

living space or in any area that may be damaged by overflow from the main drain pan. In some localities, local codes require an auxiliary drain pan for ANY hori-

zontal installation.

Figure 3 Airflow Positions

HORIZONTAL LEFT POSITION

HORIZONTAL RIGHT POSITION

,,=,

38-20-19

Drain Pan Installation

1. Position side of coil drain pan into horizontal drain pan trough on deep end of pan.

Install the coil support bracket on left or right side of the

cabinet.

Install coil drip flanges on the left or right side of the coil, (same side as horizontal drain pan).

Install drain plugs as required in back side of horizontal

drain pan. Install plugs in A coil drains to prevent air leaks.

Slide coil assembly into cabinet being careful not to tear in-

sulation.

NOTE: Be sure A coil pan fits into the support bracket on the back side of the cabinet and that pan is under the flange of the bracket

on the right side. The brackets fit over the top edge of the A coil drain pan to hold it when it's put into the horizontal position.

6. Refer to Restrictor Orifice Selection and change restrictor if necessary, then install coil access panel.

Cabinet can now be placed on it's side for horizontal airflow.

Suspended Cabinet Installation

1. If the cabinet cannot be supported on a frame or shelf, it may be suspended.

Use metal strapping or threaded rod with angle iron sup- ports under the auxiliary drain pan to suspend cabinet.

These supports MUST run parallel with the length of the cabinet (Figure 5 ).

Ensure that there is adequate room to remove service and

access panels after installing supporting brackets.

Place Styrofoam blocks in auxiliary drain pan to support

cabinet.

DuctConnections

Supply Duct

Supply duct must be attached to the outside of flange on outlet end of unit. Flexible connectors may be used if desired. Maintain clearances from supply duct to combustibles when heaters are

installed. See Figure 1 and unit rating plate.

Return Duct

Return duct should be attached to bottom of unitusing sheet met-

al screws or other fasteners.

442 01 2201 02 W

_ Installation Instructions

Figure 4 / Horizontal Drain Pan

Horizontal Drain Pan

(Left Hand Ai_ow)

Coil Support Bracket (Right Hand Ai_w)

Electric Furnace I

il Support Bracket

Coil Access Panel

Drip Flanges (Left Hand Airflow)

Figure 5 Horizontal Installation

Drip Flanges (Right Hand Airflow)

Coil Support Bracket

(Left Hand Airflow)

Horizontal Drain Pan (Right Hand Airflow)

38-20-06

FilterInstallation

Filters must be field supplied. The blower cabinet is set up for an

internal filter or a remote filter grille or other means may be pro- vided. Refer to ACCA Manual D for remote filter sizing.

To install an internal filter, remove screw securing filter door and slide filter into unit. Some filters are marked for airflow direction,

make sure arrow points towards blower if marked. Washable fil- ters are offered as an accessory. Disposable filter sizes are listed

in Filter Static Pressure Drop Table.

Field-Fabricated

L Drain Pan

I Supports MUST run parallel with blowercabinet I =_=0_,

442 01 2201 02

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