GE 2800 manual New Ducted Installations, Ducted Application Considerations, Components

Page 37

Ducted Installations

2800 and 3800 Series Zoneline units may be used in ducted installations.

With a ducted installation it is possible to condition the air in two areas that have a common wall separating them. A special adapter mounts on the wall case and a transition piece directs the air from the unit into the adapter. Instructions for mounting the adapter to the wall case are included with the duct adapter. The adapter contains a

grille that allows air from the unit to be discharged into the primary room and the adapter connects to a duct extension that allows the air to flow to the adjoining room. Ducting

a unit may allow a single unit to be used rather than a separate unit in each room, providing a means of reducing initial equipment cost. The duct may extend a total of 15 feet (with a field fabricated insulated duct extension) in one direction, either to the right or to the left of the unit. A baffle in the adapter allows up to 50% of the discharge air to be delivered to the secondary room.

The installation of the wall case and sub-base, if used, is the same for units being ducted as for free-standing units. The duct adapter support bracket overlaps the wall case by 1" and the bracket and mounting screws add approximately 3/8" (3/16" on each side) to the width of the wall case. If less than 1" of the wall case projects into the room it will be necessary to allow for the additional width in the opening for the wall case. The duct adapter mounting brackets should be mounted prior to installing the case in the wall.

Refer to pages 38 and 39 for drawings of ducted installations.

Prior to the installation of the transition from the room cabinet to the adapter, it will be necessary to remove the discharge grille from the room cabinet. Instructions for this modification are included with the duct adapter.

New Ducted Installations

Duct Adapter RAK6052

Components

Duct Adapter RAK6052 — The duct adapter is secured to each side of the wall case and requires the drilling of mounting holes in the wall case during installation. A template for the hole location is in the installation instructions. By securing the duct adapter to the wall case, the chassis retains the slide-out feature for servicing after the transition piece is removed.

Duct Extension RAK601 — This kit contains a 44"-long insulated duct, a register mounting collar, and an air supply register. It can be secured to the duct adapter at either end of the adapter. This duct may be cut at any dimension and used in two applications providing the sum of the two duct lengths necessary do not exceed the 44" length. Even in single applications the mounting flange must be cut off

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RAK601 Duct Extension, Mounting Collar and Register

one end of the duct to accept the collar and supply register.

Mounting Collar and Supply Register RAK602 —These components are included in the Duct Extension Kit RAK601. They may be ordered separately for installations where two duct extensions are made from one RAK601.

Ducted Application Considerations

When designing a ducted application some application considerations to be made include:

1.Do not exceed the 15-foot length maximum for the duct extension. Field supplied duct extension must be completely insulated with minimum of 1/2" insulation

2.The duct must be a straight run. Turns or bends in the duct extension create air pressure drops that the unit is not designed to overcome.

3.Minimum recommended clearance between the unit and the adjacent wall is 2".

4.Provisions for return air must be made to allow air circulation from secondary room. Doors in both secondary and primary rooms may be undercut or a return grille may be installed through a common wall.

5.When calculating the heat gain/heat loss take both areas into consideration.

Replacements of Existing Ducted Units

Since the design of the Zoneline chassis has changed over the years to provide better performance and appearance, some of the components used in ducted applications have changed. Select the proper components from the information below. The best procedure in determining the correct kit is to measure duct extension cross section.

Flat Top-Discharge Units (Zoneline Units Built Prior to 1988)

Existing Duct Extension Cross Section Measurements:

8-3/8" height x 6-1/2" width

Duct Adapter RAK7012 — This duct adapter will allow the replacement of a new chassis (2800 or 3800 Series unit) into an existing ducted application. This adapter will align properly with the duct extension and will eliminate the need to modify the wall opening. In order to minimize replacement costs, some of the components of the old duct adapter must be removed and used in the new installation. Consult the Installation Instructions of the RAK7012 before removing and discarding the old duct adapter. See additional notes page 58.

Slope-Front Discharge Units

(Models With AZC, AZR, AZW, or AZ21 or AZ31 Prefix)

Existing Duct Extension Cross Section Measurements:

7-3/32" height x 6-1/2" width

Duct Transition RAK7022 — This duct transition will allow the replacement of a new slope-front discharge Zoneline chassis (2800 or 3800 Series unit) into a previous design slope-front

ducted installation. See additional notes page 58.

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Contents GE Zoneline packaged terminal air conditioners Quick Reference ALL Units Require Power Connection KITZoneline Chassis Nomenclature Power Connection KitsExample Newest Innovation from GE Deluxe Dry Air 25 ModelsComparison of DRY AIR 25 Dehumidification Cooling With Resistance HeatTable of Contents Introduction Zoneline System Optional Accessories of the Zoneline SystemChassis Room Cabinet Wall Case2800 Zoneline Features5800 .2Features and Benefits Fan-Cycle Switch SmartFan Fan-Only Setting HIGH/LOWCompressor Restart Delay Electronic Temperature LimitingUp-Front Air Filters Easy Clean Air Discharge AreaConcealed Manual Vent Control Corrosion Protection OptionalCooling Temperature Limits Auxiliary Control SwitchesHeating Temperature Limits Series models only Heat Sentinel Diagnostics Switch Switches Description Left SwitchesSeries Up resistance heat onlyCentral Desk Control CDC Terminal Location and Typical WiringImportant CDC Comments all series applicable Remote Thermostat Control Field Wiring TerminalResistance Heat Models RAK806 Universal Control Cover LabelHeat Pump Models Feature Heat Pump Electric Heat24V AC Compressor Heater Common GroundRemote Control Low Voltage Wiring For Use With Mechanical 4-Wire Systems OnlyField-Supplied Relay Specifications Relay DesignationBalance Point Heat Pumps and Energy SavingsZoneline Heat Pump Heat Source Logic Heat Pump Operation Zoneline 3800 and 5800 SeriesHeat pump defrost Zoneline 3800 and 5800 Series Heat pump condensateAir Distribution Application CommentsWall Case with Chassis Installed DimensionsRAB71A Wall Case RAB77 Wall CaseSub-Base Wall CaseChoice of wall cases is available for the Zoneline General Wall Case Installation DataWindow, Curtain and Panel Wall Construction Architectural Window Louver InstallationMasonry Wall Construction Brick, Frame, Stucco Shingle ConstructionCase Angles Preparation of the Wall Case for All Types of ConstructionFastening Wall Case Framing for Wall CaseBrick Veneer and Frame Construction Wall Section Detailed Side View Frame and Brick Veneer Installation Cord set connectedGasket Caulk around Perimeter Wall case all 22-1/4 Where it joins22-1/4 Four sides 22-3/8All four sides where it Power supply42-1/8 27-1/4 13-1/8RAB71/77 4 ± 1/413-3/4 + D Ge.com TOP View RAB71/77 Wall Case RAK204 Series SUB-BASE Installation and Electrical DataCondensate Disposal Systems External Drain. See page 36 for internal drain Wall Case with RAD10 Drain KITInternal Drain. See page 35 for external drain New Ducted Installations Ducted InstallationsReplacements of Existing Ducted Units Ducted Application ConsiderationsRAK6052 Ducted Application AZ2800/3800 SeriesRAK601 High WideDucted Detailed Side Views AZ2800/3800 Series Outdoor Grille Exterior GrillesExterior Architectural Treatments Special Outdoor Grilles 230/208-Volt Line-Cord Connected Units Or 277-Volt Unit Installation Permanently Connected Units230/208-Volt Permanently Connected Units 230/208 Volt Sub-Base and Direct Connected UnitsReplacement of Existing Chassis Electrical Wiring Information 2800/3800/5800 SeriesEssential Elements Ordering Overview 230/208-Volt Line Cord Connected Units Maximum Connected LoadVolt Units Heat Pump Performance Data Cooling Performance DataTotal Capacity Btuh Btuh at 80º F D.B. 67º F W.B Latent System Capacity Indoor Ambient DB Temperature F 10093.00 Outdoor Design Temperature Difference Formula for Calculating Operating Costs Using Above DataInstalled unit capacity Btuh Watts/KW Normal Yearly Operating DataPage Ge.com Typical 5800 Series Schematic Diagram Suggested Bid Form Specifications Suggested Bid Form Specifications Suggested Bid Form Specifications Premium Line 5800 Series Receptacles/Sub-BasesSpecifications RAB71A Complete Accessory ListGeneral Installation Suggestions Ducted Installation Comments Zoneline warrantyReplacement Installations New InstallationsExterior Grille Color Samples Alphabetical IndexWarm Gray Beige Maple Bittersweet Chocolate GE Company Pub. No -S087 PC48947 Century of quality and innovation
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