Carrier Comfort Zone 2 Installation Manual
11 Press the Next Period button until the DAY period is displayed. Repeat Steps 5Ð10 to set the starting time and the desired heating and cooling temperatures for Zone 1, Monday, DAY.
Continue the process for the EVE and SLEEP periods. A98163 Now all of Zone 1, Monday has been programmed. Press the Next Day button until Tuesday (Tu) is displayed and repeat Steps 4Ð10.
A98164 Continue to program the remaining days of the week. After you have finished with Zone 1, press the Next Zone button and repeat the same process for the remaining zone or zones. A98165 When you have finished entering your comfort chart schedule, review the program by repeating periods, days, and zones.
Then press the End button to exit the program. HINT If a period has the same desired temperatures as the previous period, press the copy period button. Then change the starting time to reduce the number of keystrokes. HINT If Tuesday has the same settings as Monday, press the copy day button, and move on to Wednesday. HINT If the next zone has the same settings as the previous zone, press the copy period and copy day buttons at the same time to copy the entire zone. 12 Using Your System Now that you have completed programming your comfort schedule, it is time to use your system.
There are 2 operating modes: normal operation and programming mode. Unless you are programming the times or temperatures of a zone, the user interface will be in the normal operating mode.
Setting the current day: If it is not already correct, press the Next Day button until the current day of the week is shown. A98166 Setting the current time: 1.
Press the Set Time/Temp button until the TIME icon flashes. Press the up or down buttons until the desired time is shown, making sure that AM or PM is correct.
When you are finished, press the End button to exit. (It will automatically exit after 15 seconds.) A98167.
14 Viewing the temperatures in each zone: Press the Next Zone button to view the zone temperature and desired temperatures for each zone. A98170 Clean filter feature: Your Comfort Zone II system reminds you when to change or clean your filter. It tracks how many hours your equip- ment has been operating and displays a CLEAN FILTER icon when it is time to change it.
Once you have changed the filter, press the Out and Hold buttons at the same time to reset this feature. A98171 ZONE TEMPERATURE HEATING DESIRED TEMPERATURE COOLING DESIRED TEMPERATURE.
17 Controlling Your Humidity Your Comfort Zone II system allows you to control the indoor humidity if you have optional equipment such as a humidifier or a variable speed system. If you do not have these options, you can still view the indoor humidity in your home or business as well as dehumidify your home or business while on vacation to prevent moisture damage.
Check with your dealer to determine your equip- ment features and limitations. Depending upon where you live or work and the season of the year, you may need to humidify or dehumidify the air in your home or business. With your new zoning system, you can control indoor humidity through your user interface instead of having several different controls. Viewing the indoor humidity: A96475 1.
Press the up and down buttons simultaneously. First the outdoor air temperature will be shown, then the indoor humidity. Programming the humidification setpoint (optional feature for use with a humidifier): 1.
Press the Set Time/Temp and Fan buttons at the same time to enter the humidity programming mode.
. Installation and Start-Up Instructions NOTE: Read the entire instruction manual before starting the installation. TABLE OF CONTENTS PAGE Safety Consideration.1 Installation Considerations.1-2 Introduction.2 Installation.2-18 Check Equipment and Jobsite.2 Wiring.2 Shielded Cable.2 Install Comfort Zone Center.3 Install Zone Dampers.3-5 Round Metal Duct Work.4 Rectangular Metal Duct Work.4 Round Flexible Duct Work.4-5.
Use vibration isolators (flex connectors) on zone dampers and duct work to minimize noise. Place dampers away from areas that may be noise sensitive.
Carrier Comfort Zone Ii Installation Manual
TXV is required in air conditioning and heat pump applica- tions. Use separate isolated transformer to supply power to Comfort Zone System (50 va minimum, class 2, field supplied). NOTE 2 PORT #1 ISOSAT-01 PORT #2 Comfort Comfort Zone Zone ISOSAT BUS NOTE 1 SHIELD DRAIN WIRE (TYP) PORT #1 ISOSAT-01 PORT #2 DEVICE BUS (TYP) SHIELD DRAIN WIRE (TYP) PORT #1 ISOSAT-01 PORT #2 NOTES: 1.Use butt splices, or solder, for shield connections.
COMFORT ZONE CENTER BACK PLATE o r t n t e COMFORT ZONE CENTER COVER Fig. 5—Comfort Zone Center DAMPER ACTUATOR Fig. 6—Damper Motor Positioning Before insulating the duct work, check for proper damper opera- tion. Apply the 24vac between COM and OPN to open the damper and COM and CLS to close the damper. S-LOCK SUPPLY AIR DUCT DRIVE Fig. 10—Rectangular Metal Duct Work 1 / ' TO 2' INSULATION Fig.
11—Insulated Rectangular Metal Duct Work FLEXIBLE DUCT Fig 12—Round Flexible Duct Work 2. Secure flexible duct to zone damper using SMACNA or other approved method. Insert 2-conductor wiring through 1 of pre-drilled holes in side of back plate. Connect sensor to 2-wire conductor using provided wire nuts. 16 for connection to Comfort Zone Center.) Step 7—Install Dx Coil Sensor The Dx coil temperature sensor is recommended for use in heat pump with fan coil applications only. Zone Dampers BYPASS ZN4 CL OP COM CL OP COM CL OP COM CL OP COM CL OP COM COMFORT ZONE I/O COMM COMM BUS BUS HAM CONTROLLER R W R W R W R W R W R W W R G OAT LAT ZT4 ZT3 ZT2 Dx Coil. 5 WIRE CONDUCTOR (INTERFACE BOARD) 3 WIRE CONDUCTOR (COMM BUS) COMM BUS FIELD WIRING (FEED THRU) I/O BOARD Fig.
17—Wiring Four Zone Controller Changing the base temperatures will change the Comfort Temperature Setpoints used in the system schedules. Always set the Base Temperatures prior to programming the system schedules. If Fan Switch on 4 zone controller is set to ON instead of Auto, then system fan will run continuously. Any time Comfort Zone is operating fan, it will be in active control of system. NOTE: If Auto Fan Off For Heating option (rotary switch position T-9) is ON, and Fan Switch on the 4 zone controller is ON, Comfort Zone will operate fan full time. Two-Stage Heat Pump For cooling applications, the second stage of an air conditioner is not necessarily more expensive to operate than first stage. But additional cooling can drive down the efficiency of a 2-speed air conditioner and longer use of first stage alone tends to deliver better humidity control in moist climates.
Again, because of these advantages, Comfort Zone will attempt to minimize use of second stage cooling. Table 5—HVAC Equipment Stages Vs. Zone Demand HEATING & COOLING DEMAND °F EQUIPMENT STAGES First-Stage Cooling Second-Stage Cooling First-Stage Heating Second-Stage Heating Third-Stage Heating Fourth-Stage Heating 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. Refer to Table 6 for settings and their definitions. Zone Controller Bus Address (S-1) This setting establishes the identity of the 4 zone controller on the Carrier communication bus. NOTE: Remote room sensors do not require addressing. If using optional Smart Sensors, they must be addressed as follows: Table 6—Programmable Options-Settings. Check location of 4 zone controller and remote room sensors to make sure that they are not near heat producing devices such as lamps, sunlight, and appliances. Table 7—Wiring Diagram Reference For Fig.
19 and 20 FAN COIL WITH AIR CONDITIONER INDOOR UNIT (FIG. 19) FA4A OUTDOOR UNIT FB4A. Write down on a piece of paper AND GIVE TO THE OWNER a list showing what rooms are controlled by what dampers, and their corresponding zone numbers. Keep list for your future use. Instruct owner to turn cool switch OFF in the fall, and turn it ON in the spring. Cool Switch OFF—Cooling will not come on.
AUTO—Cooling will come on when any zone is more than 1.5°F above desired cool setpoint. Fan Switch ON—Fan will stay on continuously (recommended). AUTO—Fan will come on only when heating or cooling is required. Press ADVANCE TIME/DAY button until desired start time is displayed. Adjust setpoints. Adjust setpoints using up and down buttons until desired temperatures for the selected time period appear in display.
These setpoints will be used during the time period currently displayed in clock window. OUTSIDE AIR TEMPERATURE SENSOR The Outside Air Temperature Sensor must be used whenever an Outside Air Damper is installed. An Outside Air Temperature Sensor must also be used for dual fuel applications. Step 16—Troubleshooting This section contains information to assist you in troubleshooting problems and errors associated with the Comfort Zone System. TOGGLE SETTING Timeguard delay is 30 sec, overrides 5-minute delay be- tween de-energizing and re-energizing HVAC stages. This (T1)-Timeguard Override option automatically returns to OFF after 30 sec timeout. If equipment has been shut down due to a leaving air tem- perature trip, the timeguard override has no effect.
SYMPTOM Thermostat is not receiving power. Verify that comfort zone center is receiving 24 vac. (50 va minimum required with 4 motorized No Display 2. Check that the thermostat is receiving a steady 10 VDC across the red and white wires at the Low voltage. Error Display (Dial Position T4) must be turned on. SF ERROR CODE DESCRIPTION Temperature Programming Error Time Period Programming Error Zone 1 Temperature Calibration Out of Range Zone 2 Temperature Calibration Out of Range Zone 3 Temperature Calibration Out of Range Zone 4 Temperature Calibration Out of Range Duct Temperature Calibration Out of. Error Display (Dial Position T4) must be turned on.
HF ERROR CODE DESCRIPTION Zone 1 Temperature Sensor Zone 2 Temperature Sensor Zone 3 Temperature Sensor Zone 4 Temperature Sensor Duct Temperature Sensor Outside Air Temperature Sensor Dx Coil Sensor Bus Access Error Zone 2 Smart Sensor Zone 3 Smart Sensor Zone 4 Smart Sensor. Latent Capacity Control (LCC) R1 = Relay DPST, Pilot Duty, 24-v coil (HN61KK324) or Equivalent. H = Humidistat, opens on humidity rise (HL38MG026) Fig. 19—Typical Wiring Diagrams (Fan Coil with Air Conditioner) STANDARD SINGLE SPEED AIR CONDITIONER COMFORT ZONE SYSTEM. COOL 1 (Y1) Blue COOL 2 (Y2) White HEAT 1 (W1) Brown HEAT 2 (W2) Green FAN (G) Orange RV-COOL (O) Black RV-HEAT (O) Fig.
19—Typical Wiring Diagrams (Fan Coil with Air Conditioner) Continued 2-SPEED AIR CONDITIONER (38TD) FAN COIL Y/Y2 A94034. Instructions for two-stage operation. Connect 'W2' from the Comfort Zone Center to 'W2' on the furnace control board. See Furnace Installation Instructions For Details Involving Set-Up Switch Configuration and Two-Stage Furnace Operation. 20—Typical Wiring Diagrams (Furnace with Air Conditioner) STANDARD SINGLE SPEED AIR CONDITIONER. Latent Capacity Control (LCC) R1 = Relay DPST, Pilot Duty, 24-v coil (HN61KK324) or Equivalent.
H = Humidistat, opens on humidity rise (HL38MG026) Fig. 20—Typical Wiring Diagrams (Furnace with Air Conditioner) Continued 2-SPEED AIR CONDITIONER (38TD) COMFORT ZONE CENTER UNIT 24 VAC (R). 'W2' on the furnace control board. See Furnace Installation Instructions For Details Involving Set-Up Switch Configuration and Two- Stage Furnace Operation.
20—Typical Wiring Diagrams (Furnace with Air Conditioner) Continued 2-SPEED AIR CONDITIONER (38TD) FURNACE W/W1 Y/Y2 Latent Capacity Control (LCC) R1 = Relay DPST, Pilot Duty, 24-v coil (HN61KK324) or Equivalent. COMFORT ZONE CENTER FAN COIL UNIT 24 VAC (R) Yellow COOL 1 (Y1) Blue COOL 2 (Y2) White HEAT 1 (W1) Brown HEAT 2 (W2) Green FAN (G) Orange RV-COOL (O) Black RV-HEAT (O) COMFORT ZONE SYSTEM FAN COIL UNIT 24 VAC (R) Yellow COOL 1 (Y1) Blue. COMFORT ZONE SYSTEM UNIT 24 VAC (R) Yellow COOL 1 (Y1) Blue COOL 2 (Y2) White HEAT 1 (W1) Brown HEAT 2 (W2) Green FAN (G) Orange RV-COOL (O) Black RV-HEAT (O) Fig. 21—Typical Wiring Diagrams (Fan Coil with Heat Pump) Continued 2-SPEED HEAT PUMP (38YD). COMFORT ZONE CENTER VARIABLE SPEED FURNACE UNIT 24 VAC (R) Yellow COOL 1 (Y1) Blue COOL 2 (Y2) White HEAT 1 (W1) Brown HEAT 2 (W2) Green FAN (G) Orange RV-COOL (O) Black RV-HEAT (O) R1 = Relay DPST, Pilot Duty, 24-v coil (HN61KK324) or Equivalent. COMFORT ZONE CENTER VARIABLE SPEED FURNACE UNIT 24 VAC (R) Yellow COOL 1 (Y1) Blue COOL 2 (Y2) White HEAT 1 (W1) Brown HEAT 2 (W2) Green FAN (G) Orange RV-COOL (O) Black RV-HEAT (O) R1 = Relay DPST, Pilot Duty, 24-v coil (HN61KK324) or Equivalent.
COMFORT ZONE CENTER FURNACE UNIT 24 VAC (R) Yellow COOL 1 (Y1) Blue COOL 2 (Y2) White HEAT 1 (W1) Brown HEAT 2 (W2) Green FAN (G) Orange RV-COOL (O) Black RV-HEAT (O) Latent Capacity Control (LCC) R1 = Relay DPST, Pilot Duty, 24-v coil (HN61KK324) or Equivalent. Calibrate Zone 1 Temp Sensor Damper Service Position Copyright 1995 CARRIER Corp. Indianapolis, IN 46231 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.