Carrier ZONEKIT4ZCAR instruction manual Ðhvac Equipment Stages Vs. Zone Demand

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Table 5ÐHVAC Equipment Stages

Vs. Zone Demand

HEATING & COOLING

DEMAND °F

DEMAND °C

EQUIPMENT STAGES

 

 

First-Stage Cooling

1.5

0.83

Second-Stage Cooling

2.0

1.11

First-Stage Heating

1.5

0.83

Second-Stage Heating

2.0

1.11

Third-Stage Heating

2.5

1.39

Fourth-Stage Heating

3.0

1.67

 

 

 

NOTE: Comfort Zone uses a 3-minute timer to delay start of second-stage (heating or cooling). This timer is started whenever first-stage heating or cooling is energized. This delay cannot be overridden or disabled.

STAGE CONTROL DURING EQUIPMENT OPERATION

As shown earlier, Comfort Zone has 6 configurable options which help govern equipment operation. They are:

1.Comfort Trend Staging (Rotary Position T-8).

2.System Mode Reselect (Rotary Position T-22).

3.High/Low Temperature Limits Enabled (Rotary Position T-10).

4.High Temperature Trip Limit (Rotary Position S-6).

5.Dx Sensor (Rotary Position T-27).

6.Smart Start (Heat Pump Strip Heat Economy Feature)

Comfort Trend Staging and High/Low Temperature Limits control the use of extra stages of heating and cooling. Both can be turned off by the installer but the use of these options is highly recommended.

Comfort Trend Staging is used by Comfort Zone as an aid to decide if second-stage (heating or cooling) is needed. The system must have at least 1 zone with a demand equal to or greater than 2.0oF to allow use of second stage. Comfort Trend looks at temperature inside zone and watches trend over time. If zone demand is being lowered by first-stage operation, second stage is not energized. Stage 1 would remain ON and Stage 2 would remain OFF as long as temperature and trend continued to improve.

Comfort Trend Staging uses a 6-minute timer and a record of the Reference Zone demand to control second stage. When Comfort Trend Staging starts, demand in Reference Zone is recorded and temperature in zone is continuously monitored. If demand in Reference Zone is reduced (temperature is approaching comfort setpoints), then 6-minute timer is restarted and new demand is recorded. If 6-minute timer expires and demand is the same or has grown greater, Comfort Zone will start second stage.

Comfort Trend works for all stages of heating and cooling operation.

Comfort Trend staging will be used if rotary Position T-8 is turned ON. If T-8 is turned OFF, then second stage will be energized whenever Reference Zone demand meets or exceeds 2.0°F and after 3-minute delay.

System Mode Reselect allows Comfort Zone to switch between heating and cooling even if current system demand has not been satisfied. For example, if Comfort Zone is providing heat, System Mode Reselect allows Comfort Zone to look at any cooling needs which may also exist in the building. If cooling demand exceeds heating demand for 20 minutes, Comfort Zone will stop providing

heat and switch into a cooling mode. Once cooling demand is satisfied (or System Mode Reselect dictates a switch), Comfort Zone will revert to a heating mode in order to try and satisfy that demand.

The need for System Mode Reselect usually indicates some type of system problem. Common use of System Mode Reselect may be caused by poor or improper duct work, open windows or doors, HVAC equipment failure, improper equipment sizing, etc. The need for System Mode Reselect usually occurs in larger installa- tions where zone use or occupancy may vary widely. For residen- tial application, the need for System Mode Reselect is normally not frequent unless the building has unusual architectural features or problems with HVAC system.

High/Low Temperature Limits is an option that allows Comfort Zone to control equipment stages and position dampers based upon temperature of supply air leaving HVAC equipment. As the Comfort Zone system operates through a heating or cooling cycle, zone demands and damper positions will change. This changes actual tonnage or BTUH that is applied to HVAC equipment. The tonnage generated by HVAC equipment must equal tonnage placed into zones. If zone's airflow decreases, cooling equipment will tend to drive down supply air temperatures. Conversely, heating equipment will tend to drive up supply air temperatures.

With High/Low Temperature Limits turned ON, Comfort Zone will detect this condition and take corrective action. The first step taken by Comfort Zone will be to start turning off extra stages of equipment. this will continue until either the Leaving Air Tem- perature problem is corrected or system is operating on first-stage heating or cooling only.

If system is operating on first-stage heating or cooling, Comfort Zone will begin to gradually open zone dampers. This can continue until system has become a fully-open constant-volume system if needed. The objective is to provide required heating or cooling as best as possible prior to shutting off equipment. In practice the control tends to match equipment capacity to zone demands and will seldom revert back to a fully-open system.

The Leaving Air Temperature control can also indicate problem zones within a system which are not receiving sufficient airflow. If 1 area (or zone) within a building has difficulty becoming satisfied then there may be a sizing problem or an obstruction in duct work supplying that zone.

To use the Leaving Air Temperature Control, 3 options must be setup properly. They are:

1.High/Low Temperature Limits Enabled (Rotary Position T-10).

2.High Temperature Trip Limit (Rotary Position S-6).

3.Dx Coil Sensor For Leaving Air Temperature Checking (Rotary Position T-27).

First, High/Low Temperature Limits Enabled must be turned ON. This is the ON-OFF switch for the control option. The temperature used for this control is measured by Remote Duct Sensor and (optionally) the Dx Coil Sensor.

The High Temperature Trip Limit (Rotary Position S-6) is supply air temperature for heating that the Leaving Air Tempera- ture control uses to detect a problem during heating modes only. The Comfort Zone thermostat will display a number between 05 and 55°F. The actual temperature is 100°F greater, such that the actual range is 105°F to 155°F. Comfort Zone cannot display the 100's digit.

Selecting the Offset Temperature picks the temperature when Comfort Zone will start taking action to correct the Leaving Air Temperature. If limit temperature is between 105°F and 109°F,

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Contents ZONEKIT4ZCAR Shielded Cable ÐWiringÐCheck Equipment and Jobsite From MAX Comfort Zone Gage Length Wires Center to ÐWiring RequirementsÐInstall Comfort Zone Center ÐInstall Zone DampersDamper Mounting Bracket Round Metal Duct WorkRectangular Metal Duct Work Round Flexible Duct WorkRectangular Fibrous Glass Duct Work ÐInstall Barometric Bypass DamperÐInstall Duct Temperature Sensor ÐRound Flexible Duct WorkÐSequence of Operation ÐInstall Dx Coil SensorÐInstall Four Zone Controller ÐInstall Remote Room Sensors or Smart Sensors OptionalÐComfort Zone System Wiring Diagram PRE-POSITIONING Dampers and Starting the System FAN Sequence of Events for a Normal Heating or Cooling CycleSelection of a Reference Zone in the System Control Strategy for Heating / Cooling Stages ÐZone Damper Positions Damper Position Versus Zone DemandControlling the Zone Dampers Operating the Heating and Cooling EquipmentRelay Pack to Hvac Equipment Connections Configuration Options for Equipment OperationÐHeating System Option Vs. Type of Heater Used ÐAvailable Heating and Cooling Stages Vs. System TypeHeating & Cooling Demand F Demand C Equipment Stages Ðhvac Equipment Stages Vs. Zone DemandStage Control During Equipment Operation Programmable OPTIONS-SETTINGS ÐProgrammable Options-SettingsÐConfiguring Four Zone Controller ÐStart-Up ÐWiring Diagram Reference ForÐWiring Diagrams Programmable OPTIONS-TOGGLESÐProgramming Schedules System SwitchesRight AM Time Period PM Time Period Wrong ÐExample Weekly ScheduleController Display Zone Selector DialSmart Sensor and Smart Sensor Power Pack ÐTemperature Sensor CalibrationsÐAccessories Home Access ModuleÐTroubleshooting Outside AIR Temperature SensorÐToggle Summary Toggle Setting OFF DefaultSymptom Possible Cause ÐOperating ProblemsSF Error Code Description Solution HF Error Code Description Solution ÐTypical Wiring Diagrams Fan Coil with Air Conditioner Comfort Zone Center Speed AIR Conditioner ÐTypical Wiring Diagrams Furnace with Air Conditioner A94037 ÐTypical Wiring Diagrams Furnace with Air Conditioner ÐTypical Wiring Diagrams Fan Coil with Heat Pump A94044 ÐTypical Wiring Diagram Furnace with Heat Pump ÐTypical Wiring Diagrams Furnace with Heat Pump ÐTypical Wiring Diagrams Furnace with Heat Pump Rotary Comfort Zone Configuration TableToggle Description Factory Record Default JOB Setting Setting

ZONEKIT4ZCAR specifications

The Carrier ZONEKIT4ZCAR is an innovative zoning system designed to enhance the comfort and efficiency of heating and cooling in residential and commercial spaces. Its functionality allows users to customize temperature settings in different areas of a building, which is especially valuable in larger homes or multi-room facilities.

One of the standout features of the ZONEKIT4ZCAR is its integration with Carrier’s advanced HVAC technology. This zoning system utilizes dampers that control airflow, directing heated or cooled air to specific areas as needed. This ensures that every room is maintained at the desired temperature without wasting energy on unused spaces. The system can effectively manage up to four different zones simultaneously.

The ZONEKIT4ZCAR is equipped with smart technology compatibility, allowing seamless integration with smart home systems. Users can control their zoning settings through mobile applications, voice commands, or smart thermostats. This feature enhances user convenience, providing access to temperature adjustments from anywhere in the home. Additionally, the system can be programmed to follow user schedules, optimizing energy usage and potentially lowering energy bills.

Another key characteristic of the Carrier ZONEKIT4ZCAR is its reliability and durability. Carrier is a well-respected brand in the HVAC industry, associated with high-quality products that are built to last. The ZONEKIT4ZCAR reflects this commitment, featuring robust construction and materials that ensure longevity and consistent performance.

The installation process of the ZONEKIT4ZCAR is designed to be straightforward, making it an appealing choice for both professionals and DIY enthusiasts. It is compatible with various Carrier heating and cooling systems, allowing for easy upgrades or replacements in existing setups.

In terms of energy efficiency, the ZONEKIT4ZCAR caters to environmentally conscious users. By allowing precise control over the climate in specific areas, the system reduces overall energy consumption, thereby lowering carbon footprints.

Finally, the ZONEKIT4ZCAR provides exceptional comfort and control, making it a smart investment for anyone looking to improve their indoor climate experience. With its combination of cutting-edge technology, user-friendly features, and energy efficiency, the Carrier ZONEKIT4ZCAR stands out in the HVAC market as a reliable choice for modern zoning solutions.
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