GE manual Heat pump defrost Zoneline 5500 Series, Heat Pump Operation Zoneline 5500 Series

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Heat Pumps and Energy Savings

Heat Pump Operation - Zoneline 5500 Series

Heat sources: Heat pump, heat pump and simultaneous electric resistance heat, or electric resistance heat

The Zoneline 5500 Series heat pumps employ a highly featured microprocessor control system interfaced with thermistors to accurately measure indoor air temperature, outdoor air temperature, indoor coil temperature, and outdoor coil temperature. This system allows the microprocessor to precisely and predictably react to changing conditions in order to provide a very advanced Packaged Terminal Heat Pump operating system.

The Zoneline 5500 series is designed to help insure a comfortable room. When “HEAT” is selected, the unit will determine if the room air is warm enough to satisfy the thermostat setting. If the temperature at the unit sensor is below the desired temperature, the electric resistance heater will be utilized to warm the room to the point where the thermostat is satisfied. This feature is designed to allow the temperature of an unoccupied room to be maintained at an energy saving level without inconveniencing the room occupant. Once the thermostat has been satisfied, the resistance heater will turn off and the heat pump will operate as shown in Zoneline 5500 Series Heat Source Logic chart when the thermostat calls for heat again. The unit will operate in this manner even if connected to a Central Desk Control.

Zoneline 5500 Series Heat Source Logic

ROOM

 

 

 

TEMPERATURE

 

 

 

VS. THERMOSTAT

Above 46°F.

Between 46°F.

Below 25°F.

SET POINT

 

and 25°F.

 

Less Than 1.8°F.

Heat Pump

Heat Pump*

Full Resistance

Below

 

 

Heat

 

 

 

 

1.8°F to 2.7°F.

Heat Pump

Heat Pump +

Full Resistance

Below

 

Supplemental

Heat

 

 

Heater

 

 

 

 

 

More than 2.7°F.

Heat Pump

Full Resistance

Full Resistance

Below

 

Heat

Heat

 

 

 

 

*If the “Temperature Boost” switch (dip switch #8) is in the “ON” position, the supplemental simultaneous heater will be used with heat pump operation. Simultaneous supplemental heater: 1.0 KW @ 230 V; 0.8 KW @ 208 V; 1.7 KW @ 265 V

The “Temperature Boost” option utilizes the supplemental simultaneous heater simultaneously with heat pump operation when the outdoor temperature is below 46°F. regardless of the indoor air temperature. The chart above indicates the heat source of the Zoneline 5500 series heat pump under various indoor and outdoor conditions. The unit is designed to provide heat pump savings without sacrificing room comfort. The Quick Heat Recovery feature is not affected by the Zoneline 5500 Series Heat Source Logic shown in the chart above. For more information about the Quick Heat Recovery Feature, see page 9. The full heat output of the resistance heater is dependent upon circuit amperage and the power connection kit used. See pages 42 - 43 for information on the power connection kits and available heater capacities.

A heat pump override switch is provided in the auxiliary controls to allow the unit to operate only in resistance heat. The use of this option significantly increases the cost for heating.

Heat pump defrost - Zoneline 5500 Series

The Zoneline 5500 Series has a reverse cycle demand defrost system to extend heat pump operation and increase savings from extended operation. The microprocessor determines the need for defrosting by criteria based on continuous compressor running time, outdoor air temperature, outdoor coil temperature, and the rate of temperature change of the outdoor coil. When defrosting is required, the unit reverses the flow of refrigerant to direct the hot gas into the outdoor coil to melt the frost build-up. Before and after the reverse cycle defrosting, the unit shuts off the compressor to allow the refrigerant pressures to equalize throughout the system. This eliminates the possibility of a loud reversing noise. During these periods of pressure equalization, the full resistance heat capacity of the unit is activated to help insure room comfort conditions during the defrost cycle. The unit remains in the defrost cycle for a minimum of 2 minutes up to a maximum of 9 minutes. The defrost cycle terminates when the outdoor coil reaches a temperature of 68°F or the maximum time has been reached.

Heat pump condensate See page 34 for information on heat pump condensate. The Zoneline 5500 Series heat pump may be ordered with a factory installed Internal Condensate Removal (ICR) system to minimize the amount of condensate water draining from the unit during heat pump operation.

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Contents Architects and Engineers Design Data Manual Series Heat Pump with Backup Resistance Heat Quick Reference3500 Series Control Panel Series Cooling with Electric HeatSeries Control Panel EER COPCooling With Resistance Heat Newest Innovation from GETable of Contents Important NoticeIntroduction Deluxe Series shown Optional Accessories of the Zoneline SystemComponents of the Zoneline System Zoneline Features Model Series UPCFeatures and Benefits Fan Only Setting HIGH/LOW Fan Cycle Switch SmartFanCompressor Restart Delay Electronic Temperature LimitingEasy Clean Air Discharge Area Up-Front Air FiltersConcealed Manual Vent Control Corrosion Protection OptionalAuxiliary Control Switches Cooling Temperature LimitsHeating Temperature Limits 3500 SeriesSeries DiagnosCentral Desk Control Remote Thermostat Control Resistance Heat ModelsRAK806 Universal Control Cover Label Heat Pump ModelsFeature Series See RAK806 Universal Control cover Label onFor Use With Mechanical 4-Wire Systems Only Remote Control Low Voltage WiringR1, R2, and R3 Special order, 100 piece minimum orderHeat pump condensate Heat Pumps and Energy SavingsBalance Point Zoneline 5500 Series Heat Source Logic Heat pump defrost Zoneline 5500 SeriesHeat Pump Operation Zoneline 5500 Series Application Comments Air DistributionRecommendation High Wall Mount For unitsDimensions RAK204 Wall CaseSub-Base General Wall Case Installation DataWindow, Curtain and Panel Wall Construction Installation of Wall Case in Wall Opening Masonry Wall ConstructionBrick, Frame, Stucco and Shingle Construction Preparation of the Wall Case for All Types of ConstructionFraming for Wall Case Fastening Wall CaseWall Section Detailed Side View Room CabinetWall Case Room Wall Case CabinetRoom Cabinet Wall CaseWall Case Receptacle By OthersWall Case Installation Cord SET Connected CaulkCorner and lap joints be additionally sealed Page Recommend 2 to Adjustable Caulk Holes by InstallerShown with Access Covers Removed Alternates Small TOP ViewRAK204 Series SUB-BASE Installation and Electrical Data Chaseway OptionType B Screw Green Ground Metal Case Screw Clip Type D Type a To Secure Side ChannelsCondensate Disposal Systems Cooling CondensateTypical Installation Wall Case with RAD10 Drain KITRear Grille Wall Case Room CabinetUSE Type a Screws for Both RAB71 and RAB77 NUT Molded Case RAB77 only DetailGasket Cabinet Bottom Tube Cover Plate Ducted Installations New Ducted InstallationsReplacements of Existing Ducted Units Ducted Application ConsiderationsDucted Application AZ2500/3500 Series Duct Adapter Extension has 1/2 InsulationSub-Base Installation Ducted Detailed Side Views AZ2500/3500 SeriesExterior Grilles Sample CalculationsPower Connection For Deluxe Series 2500 230/208 Volt Unit Installation Line Cord Connected Units230/208 Volt Unit Installation Permanent Connected Units 265 or 277 Volt Unit Installation Permanent Connected UnitsPower Connection Kits For Premium Series 230/208 Volt InstallationsReplacement of Existing Chassis Maximum Connected Load For Deluxe Series 2500 Cooling Performance Data Heat Pump Performance DataLatent System Capacity Formula for Calculating Operating Costs Using Above Data Normal Yearly Operating DataDrive Board Unit Typical 2500 Series Wiring DiagramTypical 2500 Series Schematic Diagram Board Unit Typical 3500 Series Wiring DiagramTypical 3500 Series Schematic Diagram Typical 5500 Series Wiring Diagram Typical 5500 Series Schematic DiagramSuggested Bid Form Specifications Page Alternate specification for molded wall case Deluxe Line Dry Air 25 & 3500 Series Receptacles/Sub-Bases Complete Accessory List Kit Number Description For Additional Information Refer toGeneral Installation Suggestions Electrical Wiring InstallationNew Installations Replacement InstallationsAlphabetical Index CategoryZoneline

5500 specifications

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