Installation guide

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FREEDOM AIR

INSTALLATION INSTRUCTIONS

ELECTRIC FURNACES / AIR HANDLERS

AHX SERIES

A. Introduction

These Air Handlers come in a variety of models and

sizes for upflow, or horizontal use and come l?om the

factory with cooling coils and a horizontal drain pan

already supplied for air conditioning and heat pmnp

applications.

These instructions are primarily to assist qualified

individuals trained and experienced in the proper

installation of this type of equipment. Refer to

authorities having jurisdiction for additional

guidance. Remember that the Clean Air Act of 1990

requires technician certification l\_r handling

rel?igerant.

B. Rules for Safe Installation and Operation

1. Read these rules and the instructions carefully.

Failure to lbllow the roles and the instructions could

cause a malfunction of the unit, and a possible safety

hazard. Keep these instructions nearby the unit for

future reference.

2. While this unit has been designed and

manufactured to comply with National Codes, it is the

instafler's responsibility to install this unit to comply

with National Codes and/or prevailing local codes

and regulations. The manufacturer assmnes no

responsibility for units installed in violation of any

code or regulation.

3. Before selaTicing, allow unit to cool.

ALWAYS SHUT OFF ELECTRICITY WHEN

WORKING ON UNIT. This will prevent any

electrical shocks or burns.

4. Ground the unit to prevent electric shock. All

electrical wiring should be in accordance with the

National Electrical Code.

5. Duct work must be installed in accordance with

the standards of the National Fire Protection

Association (NFPA) for the installation of Air

Conditioning, Warm Air Heating and Ventilating

Systems (NFPA 90A and 90B). The air distribution

duct system should be sized for 0.2 inches of static

pressure. See National Environlnental Systems

Contractors Association Manual K for duct sizing

recolrnnendations. Duct_xs_rk in non-conditioned

spaces must be insulated to prevent forlnation of

condensate and for maximum operating efficiency.

6. The safety testing agency label appearing on

these units covers the unit and factory installed coil

(if provided) only. It does not cover any other

equipment.

7. Exterior surface of cabinet may sweat when unit

is installed in non-conditioned space such as attic or

garage. Installer must provide protection such as full

size auxiliary drain pan on all units installed in non-

conditioned space such as attic or garage type

installations to prevent damage fiom condensation

runoff. It is recolrnnended that units installed in non-

conditioned space be insulated with 1" thick

fiberglass with the vapor barrier on the outside.

8. While designed to operate quietly when

properly installed, several steps should be taken to

insure this. Use of isolation pads when mounting

unit, flexible duct collars for discharge, and use of

acoustical duct liners are all good installation

practices that promote quiet operation.

9. Cabinet insulation is rated for R 4.2 (standard).

Nameplate on unit shows what is installed. Some

jurisdictions require R 6.0 on installations in non-

conditioned space. Add insulation 1" thick to exterior

of furnace to comply in these jurisdictions, putting the

vapor barrier on the outside.

C. Unpackin_ the Unit

The unit should be unpacked on receipt and if

damage is found, a claim should be made

ilrnnediately by the receiver to the shipping carrier.

Your electric air handler is completely asselnbled.

Only electric power, thermostat wiring, duct

connections, refiigerant and drain connections are

needed for installation. Check the rating plate for

unit size, voltage, phase etc. to make sure unit meets

your requirelnents.

D. Physical Installation

MINIMUM CLEARANCES

These units have a 0" minilnuln clearance to

combustible materials rating f?om all cabinet

surfaces. The unit should be installed with

selwiceability clearance of 30" f?om the fiont of the

unit. The unit can be selwiced entirely fiom the fiont,

including replacing the filter. Be sure and route

primal T and secondary drain connections so as

not to obstruct replacement of filter.

ARRANGEMENT

Unit is shipped fiom the factory arranged to be

installed in a vertical upflow or horizontal right to left

airflow position (standard) or field convertible to a

horizontal left to right airflow position.

Upflow Application

In an upflow installation the discharge outlet is at

the top. Care should be taken to insure unit is level to

permit proper condensate drainage. Normal upflow

installation will be in a basement or closet. If

installed in a closet, the closet should have a platform

fiamed in, with an opening on top of the platform

centered in the closet. Connect the supply air outlet

to a warm air plenmn. Install return air _ifles fiom

496 01 4118 00 1 05/18/04

Summary of content (6 pages)

PAGE 1
FREEDOM AIR INSTALLATION INSTRUCTIONS ELECTRIC FURNACES / AIR HANDLERS AHX SERIES A. Introduction These Air Handlers come in a variety of models and sizes for upflow, or horizontal use and come l?om the factory with cooling coils and a horizontal drain pan already supplied for air conditioning and heat pmnp applications. These instructions are primarily to assist qualified individuals trained and experienced in the proper installation of this type of equipment.
PAGE 2
outside the closet to space below the platforln. Platform must be at least 10" above the floor. If installed in a basement, run supply and return ductwork in accordance with local codes. Caution!! A "P" trap must be installed in the coil drain line! Cap unused drain fittings. Horizontal application Horizontal application will normally be used in an attic or crawl space. This type installation requires a return air duct be attached to the furnace inlet.
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codes.Thisincludes thestandards of theNational FireProtection Association for installation of AirConditioning andVentilatingsystems, NFPANo. 90B. Thevastmajorityof problems encountered withcoolingandheating systems canbeattributed to improperly designed orinstalled ductsystems. L. CHECK TEST AHX Dimensions AHX AND START The unit should be tested after the system has been completely installed to determine proper operation. Unit heat modules are equipped with heater time delay controls.
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FREEDOM INSTALLATION AIR CONDITIONING AIR INSTRUCTIONS & HEAT PUMP A/H COIL FACTORY INSTALLED TXV INTRODUCTION These Air Handler matches). EFFICIENCY AND Coils are designed CAPACITY specifically RATINGS ARE for use with LISTED electric IN CURRENT ARI WITH MANY BRANDS OF OUTDOOR CONDENSING OR HEAT MATCHES ARE LISTED IN INDOOR COIL MANUFACTURER DISTRIBUTOR FOR RATINGS AND PROPER MATCHING UNITS. CAUTION! CONTAIN ALL COILS ARE SHIPPED ANY HCFC22.
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