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5.0 AIR HANDLER Comfort Control 2 System™ INTERFACE BOARD FIGURE 8 THE AIR HANDLER CONTROL BOARD EQUIPPED WITH THE Comfort Control2 System™ For the Comfort Control 2 System™, you must have: • An air handler equipped with the Comfort Control 2 System™ • A condensing unit or heat pump equipped with Comfort Control 2 System™ • A Comfort Control 2 thermostat If your equipment does not meet this criteria, you must wire it using conventional 24VAC thermostat control wiring. Reference Section 5.11. 5.1 Comfort Control 2 CONTROL WIRING The Comfort Control 2 requires four (4) control wires for unit operation: R – 24VAC C – 24VAC common 1 – Data wire 1 2 – Data wire 2 Wiring sizing for Comfort Control 2 is identical to systems using low voltage 24V wires. No t e: Comfort Control 2 requires a minimum 18 AWG. IMPORTANT: When using Comfort Control 2, do not make any connections to the 24VAC thermostat wires. If any connections are made to the G, W1, W2, Y1, Y2, B, or ODD wires, the Comfort Control 2 control will assume the control is being used with a traditional thermostat and will IGNORE ANY COMMUNICATIONS USING DATA WIRE 1 AND DATA WIRE 2. IMPORTANT: Class 2 low voltage control wire should not be run in conduit with power wiring and must be separated from power wiring, unless Class 1 wire of proper voltage rating is used. • The four 18AWG low voltage control wires must be installed from the thermostat to the indoor unit and from indoor unit to the outdoor unit. The wire length between the thermostat and indoor unit should not be greater than 100 feet. The wire length between the indoor unit and outdoor unit should not be greater than 125 feet. • Low voltage control connections are made by extending wires from top of air handler using wire nuts. • See wiring diagrams attached to indoor and outdoor sections to be connected. 15 Comfort Control 2 System™ CONTROL WIRING The RHPL-series of air handlers are designed to operate with conventional 24VAC controls or with a serial communicating system. • Do not leave excess field control wiring inside unit, pull excess control wire to outside of unit and provide strain relief for field wiring on inside of cabinet at point wiring penetrates cabinet. • Make sure, after installation, separation of control wiring and power wiring has been maintained. FIGURE 9 TYPICAL The Comfort Control 2 System™ WIRING DIAGRAM Communicating Thermostat 1 2 R C Comfort Control 2 System™ CONTROL WIRING Indoor Unit Outdoor Unit 1 1 2 2 R R C C WIRING INFORMATION Line Voltage –Field Installed - - - - - –Factory Standard 5.2 Comfort Control 2 System™ CONTROL BOARD The RHPL series air handler control, Figure 8, has the following features: • Memory Card – The memory card stores all information needed for unit operation. Once the system is wired for serial communications, this information is shared with the thermostat and outdoor unit. This shared data is available if one of the components in the system needs to be replaced. • An automotive-style ATC blade fuse for transformer protection (3 amp). • An on-board LED to indicate blower CFM. • An RJ-11 port for use with a diagnostic tool. • Inputs for field installed supply and return air temperature sensors (available in kit RXHT-A01) • DIP switches for airflow adjustments IMPORTANT: The DIP switches are NOT used when the air handler is wired for serial communications. Airflow adjustments are performed via the thermostat or a diagnostic tool. Installation Verification • Term and bias dip switches should be on. • 24V AC power on R&C must be present at the control for the air handler to operate, reference Figure 9. • Line voltage must be present at the control for indoor blower operation. • The RX Data LED will flash green in normal operation. A flashing green light indicates 24VAC is present and the data wires 1 and 2 are wired properly. IMPORTANT: If the RX DATA LED is solid green, data wire 1 and data wire 2 are not properly connected. Typically, the connections are switched, i.e. data wire 1 is wired to the data wire 2 connection and data wire 2 is wired to the data wire 1 connection. Verify wiring and correct the polarity at the two data wires. IMPORTANT: Diagnostic port is for the diagnostic tool only. Do not attempt to connect components using a telephone cord. Damage will occur. IMPORTANT: Diagnostic port is not a phone jack. Connecting to a telephone or telephone system will result in damage. 5.3 USING THE ON-BOARD LED TO DETERMINE BLOWER CFM The CFM LED indicates blower output by flashing one (1) flash for every 100 CFM of airflow. The LED will pause 1/10 second between each flash. 5.4 AIRFLOW ADJUSTMENTS WITH THE Comfort Control 2 System™ The RHPL air handler Comfort Control 2 System™ may operate using the Comfort Control 2 or via traditional thermostat wiring. When the air handler is wired for the Comfort Control 2 using Data wire 1 and Data wire 2, the DIP switches on the Comfort Control 2 control have NO affect on the airflow. 16 serial communicating control have NO affect on the airflow. IMPORTANT: When using serial communications, the DIP switches have no affect or airf IMPORTANT: When using the Comfort Control 2, the DIP switches have no affect on or on air handler performance. airflow or on air handler performance. 5.5 Cooling5.5Airflow tonnage) COOLINGSettings AIRFLOW(by SETTINGS (BY TONNAGE) The RHPL-series of air handlers automatically set cooling airflow when using the 2 System™. The air handler detects the tonnage of the condensing ComfortofControl The (-)HPL-series air handlers automatically set cooling airflow when using serial performance and comfort. Refer to Table 2 unit/heat pump and sets airflow for optimum communications. The air handler detects theSelection tonnage condensing unit/heat pump for the airflow provided when the RHPL air handlerofis the matched to the (-)PRL heat pump. 2 System™ control board does allow the installer to tweak the cool5.7Cooling Heating Airflow Adjustment The Comfort Control 5.6 Airflow Adjustment 2 Comfort Control 2 System™ CONTROL WIRING and None airflow for optimum performance and comfort. Refer to table X.X for the airflow provided TABLE 1 +10% the (-)HPL air handler is matched to the (-)PRL heatHEAT pump. WHEN MATCHED TO THE (-)PRL PUMP RHPL AIRFLOW -10% Airflow (cfm) Table. Tonnage heat Adjustment Table X.X of – Airflow Selection nd st pump Stage via 1the Stage IMPORTANT: Cooling airflow adjustment is2accessible serial communicating (-)PRL-024JEC 775 625 the cooling airflow thermostat or via a service tool. Refer to their instructions to access (-)PRL-036JEC 1200 875 adjustment menu. (-)PRL-048JEC 1625 1200 NOTE: Cooling airflow(-)PRL-060JEC adjustments are in effect for cooling operation 1675 1375 only. They are ign when in heating mode or when electric heat is activated. Table X.X – (-)HPL airflow when matched to the (-)PRL heat pump. 5.6 COOLING AIRFLOW ADJUSTMENT ing airflow +/-10% to suit the installation. When using the Comfort Control System™, the airflow can only be adjusted using the serial communicating thermostat or a service Theserial serialcommunicating communicating control does allow theadjustment installerto totweak tweak thecooling heating airflow+/-10 +/-10 The control allow the installer the airflow tool. To adjust the airflow, does go to the airflow menu and select the desired adjustment. (Reference 2.)communications, suitthe theinstallation. installation. When usingTable serial communications,the theairflow airflowcan canonly onlybe beadjusted adjustedus u suit When using serial theserial serialcommunicating communicating thermostat or a service tool. To adjust the airflow, go to the airflo the TABLE 2 thermostat or a service tool. To adjust the airflow, go to the airflow Selection adjustmentmenu menuAIRFLOW andselect select thedesired desired adjustment (referencetable tableX.X). X.X). ADJUSTMENT SELECTION TABLE adjustment and the adjustment (reference None +10% Selection -10% None +10% Table X.X – Airflow Adjustment Selection Table. -10% IMPORTANT: Cooling airflow adjustment is accessible via the serial communicating thermostat or via a service tool. Refer to their instructions to accessTable. the cooling airflow Table X.X – Airflow Adjustment Selection IMPORTANT: Cooling airflow adjustment is accessible via the Comfort Control 2 theradjustment menu. mostat or via a service tool. Refer to their instructions to access the cooling airflow IMPORTANT: Heating airflow adjustment is accessible via the serial communicating adjustment menu. thermostat orNOTE: via aairflow serviceadjustments tool. Referare to their instructions to access the heating airflow NOTE: Cooling in effect for cooling operation only. They are ign Cooling airflow adjustments are in effect for cooling operation only. They are adjustment menu. when in heating mode activated. ignored whenor in when heatingelectric mode or heat whenis electric heat is activated. 5.7Airflow HEATING AIRFLOW ADJUSTMENT NOTE: Heating airflow Adjustment adjustments are in effect for heat pump operation only. They are 5.7 Heating 2 control does allow the installer to tweak the heating airflow +/-10% The Control ignored when inComfort cooling mode or when electric heat is2activated. to suit the installation. When using Comfort Control System™, the airflow can only be 2 thermostat The serial communicating allow the installer to tweak heating airflow +/-10 adjusted using thecontrol Comfortdoes Control or a service tool. Tothe adjust the airflow, go to the airflow adjustment menu and select the desiredthe adjustment. 3.) 5.7 Electric Heat When Airflow suit the installation. using serial communications, airflow(Reference can only Table be adjusted u the serial communicating thermostat or a service tool. To adjust the airflow, go to the airflo 3 The (-)HPL-series of air handlers are factory programmed to provide adequate airflow for adjustment menuTABLE and select the desired adjustment (reference table X.X). AIRFLOW ADJUSTMENT SELECTION TABLE electric heat (auxiliary heat). Airflow for electric heat is fixed and cannot be field adjusted. Selection Thermostat Electric None Heat Airflow Input 2-ton 3-ton 4-ton 5-ton +10% W1 or W2 800 CFM 1200 CFM 1600 CFM 1800 CFM -10% Table X.X – Airflow Adjustment Selection Table. 5.8 Cooling Mode Dehumidification IMPORTANT: Heating airflow adjustment is accessible via the Comfort Control 2 ther- mostatHeating or via a service tool.adjustment Refer to theirisinstructions to via access heating airflow IMPORTANT: airflow accessible thethe serial communicating adjustment menu. thermostat or via a service tool. Refer to their instructions to access the heating airflow NOTE: Heating airflow adjustments are in effect for heat pump operation only. They adjustment menu. are ignored when in cooling mode or when electric heat is activated. NOTE: Heating airflow adjustments are in effect for heat pump operation only. They are 17 ignored when in cooling mode or when electric heat is activated. adjustment menu. NOTE: Heating airflow adjustments are in effect for heat pump operation only. They are ignored when in cooling mode or when electric heat is activated. 5.8 ELECTRIC HEAT AIRFLOW RHPL-series air handlers are factory programmed to provide adequate airflow for Electric Heat of Airflow 5.7The electric heat (auxiliary heat). Airflow for electric heat is fixed and cannot be field adjusted. The (-)HPL-series of air handlers are factory programmed to provide adequate airflow for TABLE electric heat 4(auxiliary heat). Airflow for electric heat is fixed and cannot be field adjusted. ELECTRIC HEAT AIRFLOW Thermostat Input W1 or W2 ODD TERMINAL Comfort Control 2 System™ CONTROL WIRING Electric Heat Airflow 3-ton 4-ton 1200 CFM 1600 CFM 5-ton 1800 CFM 5.85.9 Cooling Mode Dehumidification COOLING MODE DEHUMIDIFICATION TABLE 5 INDOOR AMBIENT CONDITION HIGH HUMIDITY LOW HUMIDITY 2-ton 800 CFM INPUT TO “ODD” TERMINAL (FROM HUMIDISTAT) Ø VAC 24 VAC The serial communicating control is shipped with “On Demand Dehumidification” (ODD) turned OFF. On Demand Dehumidification may be activated from the serial communicating thermostat when the serial communicating thermostat has an on-board humidity sensor. IMPORTANT: On Demand Dehumidification is accessible via the serial communicating thermostat or via a service tool. Refer to their instructions to access the ODD airflow 4 adjustment menu. 5.10 COOLING DELAY PROFILES The RHPL air handler is factory configured with optimum ON/OFF delays to maximize energy efficiency and comfort. In certain situations, the installer may choose an alternate profile to tweak the system operation for the building load and to maximize comfort. The alternate profiles are defined below: IMPORTANT: On Demand Dehumidification, ODD, is the preferred method to maximize comfort with little or no loss of energy efficiency. If using ODD, do NOT use any of the alternate profiles. Only use the factory default profile. Use of the alternate profiles with ODD will decrease energy efficiency with no gain in comfort. Profile A – Factory default profile. Air Handler RHPL-HM2421 RHPL-HM3621 RHPL-HM4824 RHPL-HM6024 On Delay Delay Duration % Rated Airflow (second) No Delay N/A No Delay N/A No Delay N/A No Delay N/A Off Delay (seconds) 45 45 45 45 Profile B – Quiet Start profile The Quiet Start profile is configured to bring the blower up to 50% airflow for 30 seconds before advancing to 100% airflow. This helps to minimize the blower noise at system startup. Air Handler RHPL-HM2421 RHPL-HM3621 RHPL-HM4824 RHPL-HM6024 On Delay Delay Duration % Rated Airflow (second) 30 50 30 50 30 50 30 50 Off Delay (seconds) 15 15 15 15 Profile C – Humid profile The humid profile is configured to run the blower at 80% airflow for about the first four minutes of system operation to remove more moisture from the conditioned space. Air Handler RHPL-HM2421 RHPL-HM3621 RHPL-HM4824 RHPL-HM6024 On Delay Delay Duration % Rated Airflow (second) 255 80 255 80 255 80 255 80 Off Delay (seconds) 0 0 0 0 Profile D – Dry Climate profile The Dry Climate profile is configured for areas that require little to no additional dehumidification. Air Handler RHPL-HM2421 RHPL-HM3621 RHPL-HM4824 RHPL-HM6024 18 On Delay Delay Duration % Rated Airflow (second) 150 88 150 88 150 88 150 88 Off Delay (seconds) 60 60 60 60 WIRE COLOR CODE BK – BLACK G – GREEN BR – BROWN GY – GRAY R – RED PR – PURPLE Y – YELLOW BL – BLUE W – WHITE O – ORANGE FIGURE 10 FIGURE 11 TYPICAL 2-STAGE THERMOSTAT: HEAT PUMP WITH ELECTRIC HEAT TYPICAL TWO-STAGE THERMOSTAT: (-)PRL HEAT PUMP WITH ELECTRIC HEAT USING A HUMIDISTAT FOR DEHUMIDIFICATION*. Typical Two-Stage Thermostat B Y1 Y2 G E/W1 Typical Two-Stage Thermostat R W2 C B Y1 Y2 G E/W1 W2 C R Humidistat (-)HPL Air Handler (-)HPL Air Handler (-)PRL Heat Pump Outdoor Unit W1 W2 W2 Y Y1 Y/BL B BL Y1 Y Y1 Y2 Y/BL Y2 B BL B R R R Y1 Y2 B R R R C BR C G W/R ODD PR L D WIRING INFORMATION Line Voltage -Field Installed -Factory Standard C BR C G W/R L ODD PR D CONVENTIONAL THERMOSTAT WIRING Y2 (-)PRL Heat Pump Outdoor Unit W1 WIRING INFORMATION Line Voltage -Field Installed -Factory Standard *See Section 5.17 for proper DIP switch selection. S8 S7 S6 S5 S4 S3 S2 S8 S7 S5 S1 S6 OFF S4 OFF S3 ON S2 ON S1 DIP SWITCH POSITIONS DIP SWITCH POSITIONS FIGURE 13 FIGURE 12 TYPICAL TWO-STAGE THERMOSTAT: (-)PRL HEAT PUMP WITH ELECTRIC HEAT USING A TWO-STAGE THERMOSTAT WITH DEHUMIDIFICATION* (-)PRL HEAT PUMP WITH ELECTRIC HEAT USING A TWO-STAGE THERMOSTAT WITH DEHUMIDIFICATION* AND A MALFUNCTION LIGHT Typical Two-Stage Thermostat Typical Two-Stage Thermostat B Y1 Y2 G E/W1 W2 C B Y1 Y2 G R DHM E/W1 W2 C R DHM L (-)HPL Air Handler (-)HPL Air Handler (-)PRL Heat Pump Outdoor Unit W1 W2 Y1 Y Y2 Y/BL B BL Y1 Y2 B R R C BR C G W/R L ODD PR D R (-)PRL Heat Pump Outdoor Unit W1 W2 Y1 Y Y1 Y2 Y/BL Y2 B BL B R R R C BR C G W/R L ODD PR D WIRING INFORMATION Line Voltage - Field Installed - Factory Standard WIRING INFORMATION Line Voltage - Field Installed - Factory Standard *See Section 5.17 for proper DIP switch selection. *See Section 5.17 for proper DIP switch selection. DIP SWITCH POSITIONS DIP SWITCH POSITIONS ON S8 S7 S6 S5 S4 S3 S2 S8 S7 S6 S5 S4 S3 S2 S1 OFF OFF S1 ON 19 5.11 CONVENTIONAL 24VAC THERMOSTAT CONTROL WIRING The (-)PRL series of heat pumps allow the installer to use conventional 24VAC control wiring and a conventional thermostat for proper unit operation. IMPORTANT: The preferred method of unit installation and operation is by the Comfort 6.2 Serial Communications Control access to the fault history of the system. This diagnosControl System™, which allows 2 tic information is not available when the (-)PRL unit is using a conventional thermostat. Reference section 5.1 Comfort Control 2 System™ Control Wiring. The (-)HPL series air handler control, figure X.X,of has following control wiring requires a minimum eight the (8) wires for properfeatures: unit operation: Thermostat R – 24VAC C – ATC 24VACblade common An automotive-style fuse for transformer protection (3 amp). G – Constant Fan An on-board LEDW1 to –indicate CFM. First stageblower electric heat Second electric heat An RJ-11 port for W2 use– with a stage diagnostic tool. Y1 – First stage operation Inputs for field installed supply return air temperature sensors (available in kit RXH Y2 – Second stageand operation B – Heat pump operation A01) Optional wiring: adjustments • DIP switches for airflow • • • • ODD – On demand humidification IMPORTANT: Aelectric diagnostic tool can be used to display any air handler diagnostic code call for heat is received. However, no system changes are permitted. Anywiring, system changes MUST control be done via the NOTE: When using 24VAC thermostat control the serial communicating will ignore any inputs to Data wire 1 and Data wire 2. switches. CONVENTIONAL THERMOSTAT WIRING NOTE: W1 and W2 may be jumpered together to energize all the electric heat when a IMPORTANT: Class 2 low voltage control wire should not be run in conduit with power wiring and must be separated from power wiring, unless Class 1 wire of proper voltage Verification rating is used. Installation Low voltage control must wiring should be 18 AWG color-coded minimum). For to operate 24V AC power on R&C be present at the control(105°C for the air handler lengths longer than 100 ft., 16 AWG wire should be used. Line voltage must be present at the control for indoor blower operation. Low voltage control connections are made by extending wires from top of air handler The control wires must be connected to a conventional 24VAC thermostat for proper using wire nuts. operation.See wiring diagrams attached to indoor and outdoor sections to be connected • • • Do not leave excess field control wiring inside unit, pull excess control wire to outside of unit and provide strain relief for field wiring on inside of cabinet at point wiring penetrates cabinet. 6.3 Using the On-Board LED to Determine Blower CFM Make sure, after installation, separation of control wiring and power wiring has been maintained.board LED indicates blower output by flashing one (1) interface The (-)HPL second for e 100 CFM of airflow. The LED will pause 1/10 second between each flash. After the blo USING THE LED TO DETERMINE CFM before repeating CFM has been5.12 displayed, the ON-BOARD LED will illuminate dimly forBLOWER 10 seconds The CFM LED indicates blower output by flashing one (1) flash for every 100 CFM of airsequence. (See Table 1.) will pause 1/10 second between each flash. flow. The LED 5.13 COOLING AIRFLOW SETTINGS 6.4 Cooling Airflow FIGURE 14 Settings DIP SWITCH SETTING FOR COOLING AIRFLOW Figure X – DIP switch setting for cooling airflow 20 The RHPL-series of air handlers are factory configured to for proper airflow. The cooling The (-)HPL-series of air handlers are factory configured to effect for proper airflow. The cooling airflow (CAF) is fixed and the DIP switch settings have no on airflow. The factory setting is: airflow (CAF) is fixed and the DIP switch settings have no effect on airflow. The factory The (-)HPL-series of air handlers are factory configured to for proper airflow. The cooling is: TABLE 6 airflow (CAF) is fixed and the DIP switch settings have no effect on airflow. The factory setti Airflow 24VAC THERMOSTAT AIRFLOW SETTINGS WHEN USING TRADITIONALCooling is: 2-ton 3-ton 4-ton 5-ton Cooling Airflow Y1 Y2 Y1 Y2 Y1 Y2 Y1 Y2 2-ton 3-ton 4-ton 5-ton CFM 625 775 900 1200 1200 1625 1375 1675 Y1 Y2 Y1 Y2 Y1 Y2 Y1 Y2 CFM 625 775 900 1200 1200 1625 1375 1675 Table X.X – Airflow settings when using traditional 24VAC thermostat TableThe X.XDIP – Airflow settings whenonly usingwhen traditional thermostat IMPORTANT: switches are active using 24VAC conventional a 24VAC IMPORTANT: The DIP switches are active only when using conventional a 24VAC therthermostat. If using serial communications, refer to section 5conventional for adjusting 2 System™, refer to Section 5.13 for adjusting airIf using Comfortare Control mostat. IMPORTANT: The DIPthe switches active only when using a airflows. 24VAC flows. thermostat. If using serial communications, refer to section 5 for adjusting airflows. 6.5 Heating Airflow Adjustment FIGURE 15 DIP SWITCH SETTING FOR HEAT PUMP AIRFLOW 6.5 Heating Airflow Adjustment CONVENTIONAL THERMOSTAT WIRING Figure X – DIP switch setting for heat pump airflow 5.14 HEATING AIRFLOW ADJUSTMENT Figure X – DIP switch setting for heat pump airflow The RHPL-series of air handlers are factory configured to for proper airflow. The heat pump airflow (PAF) is fixed are and the DIP switch settings to have effect on airflow. The The (-)HPL-series of air handlers factory configured fornoproper airflow. The heat pu The (-)HPL-series of airis:handlers are factory configured to for proper airflow. The heat pump factory setting airflow and the theDIP DIPswitch switchsettings settingshave have effect airflow. factory airflow (PAF) (PAF) is is fixed fixed and nono effect onon airflow. TheThe factory settis is: TABLE 7 is: AIRFLOW SETTINGS WHEN USING TRADITIONAL 24VAC THERMOSTAT HeatingAirflow Airflow Heating 2-ton 3-ton 4-ton 5-ton 2-ton 3-ton 4-ton 5-ton Y1 Y2 Y2 Y1 Y1 Y2 Y2 Y1Y1 Y2Y2 Y1Y1 Y2 Y2 Y1 CFM 625 775 900 1200 1200 1625 16251375 13751675 1675 625 775 900 1200 1200 CFM Table X.X –– Airflow Airflowsettings settingswhen whenusing usingtraditional traditional 24VAC thermostat 24VAC thermostat Table X.X IMPORTANT: The DIP switches are active only when using conventional a 24VAC ther- 2 System™, IMPORTANT: DIP switches only conventional a 24VAC IMPORTANT: DIP switches areactive active onlywhen when using conventional a 24VAC referusing to Section 5.14 for adjusting airmostat. The If using the Comfort are Control flows. thermostat. If If using 5 for adjusting airflows. thermostat. serial communications, communications,refer refertotosection section 5 for adjusting airflows. using serial FIGURE 16 6.6Airflow Airflow Adjustment (TRIM) DIPAdjustment SWITCH SETTING FOR AIRFLOW ADJUSTMENTS 6.6 (TRIM) Figure X – DIP switch setting for airflow adjustments 21 5.15 AIRFLOW ADJUSTMENT (TRIM) Figure X – DIP switch setting for airflow Figure Xcan – DIP setting for airflow Cooling and heat pump airflow be switch adjusted +/-10% to adjustments suitadjustments the installation. To adjust the airflow, set DIP switches 5 & 6 per Table 8: Cooling and pump airflow can be +/-10% to suit To adjust the the Cooling and heat pump airflow canadjusted be adjusted +/-10% to the suitinstallation. the installation. To adjust TABLE 8 heat airflow, set DIP switches 5 & 56 & per6TABLE Table X.X:X.X: airflow, set DIP switches per Table AIRFLOW ADJUSTMENT SELECTION Airflow Adjustments Airflow Adjustments 2-ton2-ton 3-ton3-ton 4-ton4-ton 5-ton5-ton Position Switch Switch SwitchY1 Y1Y2 Y2Y1 Y1Y2 Y2Y1 Y1Y2 Y2Y1 Y1Y2 Y2 Position Switch 5 5 6 6 A A OFFOFF OFFOFF625 625775 775900 900 12001200 12001200 16251625 13751375 16751675 B B ON ON OFFOFF700 700850 850 10001000 13251325 13251325 18001800 15251525 18501850 C C OFFOFF ON ON 575 575700 700800 800 10751075 10751075 14751475 12501250 15001500 D D ON ON ON ON 625 625775 775900 900 12001200 12001200 16251625 13751375 16751675 Table X.X X.X – Airflow Adjustment Selection Table. Table – Airflow Adjustment Selection Table. IMPORTANT: The DIP switches are active only when using conventional a 24VAC ther2 System™, IMPORTANT: The Comfort DIP DIP switches are active onlyonly when using conventional 24VAC mostat. If using the Control refer tousing Section 5.15a for IMPORTANT: The switches are active when conventional aadjusting 24VAC airthermostat. If using serialserial communications, referrefer to section 5 for5adjusting airflows. flows. thermostat. If using communications, to section for adjusting airflows. NOTE: Airflow adjustment is active for cooling and heat pump operation only. They are NOTE: Airflow adjustment is active for cooling and heat pump operation only.only. TheyThey are are NOTE: is active for cooling and heat pump operation ignored whenAirflow electricadjustment heat is activated. ignored whenwhen electric heat heat is activated. ignored electric is activated. CONVENTIONAL THERMOSTAT WIRING DIP DIP Switch Settings Switch Settings 5.16 ELECTRIC HEAT AIRFLOW 6.7 Electric Heat Airflow 6.7 Electric Heat Airflow The RHPL-series of air handlers are factory programmed to provide adequate airflow for The The (-)HPL-series of airof handlers are factory programmed provide adequate airflow for (-)HPL-series air handlers are programmed to and provide adequate airflow for electric heat (auxiliary heat). Airflow forfactory electric heat istofixed cannot be field adjustelectric heat heat (auxiliary heat).heat). Airflow for electric heat heat is fixed and cannot be field adjusted. electric (auxiliary Airflow for electric is fixed and cannot be field adjusted. ed. Thermostat Electric HeatHeat Airflow Thermostat Electric Airflow InputInput 2-ton2-ton 3-ton3-ton 4-ton4-ton 5-ton5-ton W1 or CFMCFM 16001600 CFMCFM 18001800 CFMCFM W1W2 or W2 800 CFM 800 CFM 12001200 6.8 Cooling Mode Dehumidification 5.17 COOLING MODE DEHUMIDIFICATION 6.8 Cooling Mode Dehumidification FIGURE 17 ON DEMAND DEHUMIDIFICATION DIP SWITCH 10 10 Figure Figure X X –– On On Demand Demand Dehumidification Dehumidification DIP DIP Switch Switch The handler shipped with “On (ODD) The (-)HPL-series (-)HPL-series air airFigure handler shipped withDehumidification “On Demand Demand Dehumidification” Dehumidification” (ODD) turned turned X is –is On Demand DIP Switch The air handler is shipped “On Demand (ODD) OFF. On is in with aa traditional thermostat OFF.RHPL-series On Demand Demand Dehumidification Dehumidification is used usedwith in conjunction conjunction withDehumidification” traditional 24VAC 24VAC thermostat turned OFF. Demand Dehumidification is Demand usedODD in conjunction withswitch a(ODD) traditional The (-)HPL-series air handler is shipped with “On Dehumidification” turned equipped with an humidity sensor. Activate by 77 ON. When equipped withOn an on-board on-board humidity sensor. Activate ODD by turning turning DIP DIP switch ON. When 24VAC thermostat equipped with anused on-board humidity sensor. Activate ODD by turnOFF. On Demand Dehumidification is in conjunction with a traditional 24VAC thermostat ODD is turned ON, the thermostat sends a 24VAC signal to the ODD input of the air handler. ODD is turned ON, the thermostat sends a 24VAC signal to the ODD input of the air handler. ing DIP switch 7 ON. ODD operation is controlled by the indoor humidity sensed at the equipped with Operation is: Operation is: an on-board humidity sensor. Activate ODD by turning DIP switch 7 ON. When thermostat. is: ODD is turnedOperation ON, the thermostat sends a 24VAC signal to the ODD input of the air handler. Operation is: Normal (humidity set point): Normal Humidity (humidityBELOW BELOWthe thethermostat thermostat point): Normal Humidity Humidity (humidity BELOW the thermostat setset point): Normal Humidity (humidity BELOW the thermostat set point):Result Normal Humidity Normal Humidity Result A Full A 24VAC 24VAC signal signal is is applied applied to to Full rated rated airflow airflow is is delivered delivered Normal Humidity Result the terminal by the ODD ODD terminal by the the blower blower A 24VAC signal is applied to Full rated airflow is delivered ODD terminal byset the blower High (humidity ABOVE point): High Humidity Humiditythe (humidity ABOVEthe thethermostat thermostat set point): (humidity ABOVE the thermostat set point): 22 High Humidity (humidityHigh ABOVE the thermostat set point): Result Humidity High Humidity Result No Airflow No signal signal applied applied to to the the ODD ODD Airflow is is reduced reduced by by aa preset preset Result latent terminal amount terminalHigh Humidity amount to to increase increase latent No signal applied to the ODD Airflow capacity capacityis reduced by a preset terminal amount to increase latent capacity The to maximum efficiency and humidity The RHPL air air handler programmed to provide maximum efficiency and optimum The (-)HPL (-)HPL air handler handler is isisprogrammed programmed to provide provide maximum efficiency and optimum optimum humidity removal. humidity detected, the air reduces cooling airflow humidity removal. highis the air handler cooling airremoval. When When high highWhen humidity ishumidity detected,is thedetected, air handler handler reduces coolingreduces airflow defined defined in in The (-)HPL Table X.X. flow defined Tableis9.programmed to provide maximum efficiency and optimum humidity Table X.X. airinhandler removal. When high humidity is detected, the air handler reduces cooling airflow defined in Table X.X. Air Cooling Air Handler Handler Cooling Airflow Airflow Reduction Reduction Air Handler Cooling Airflow 2-ton 85% 2-ton 85% Reduction 3-ton terminal amount to increase latent capacity The (-)HPL air handler is programmed to provide maximum efficiency and optimum humidity removal. high humidity is detected, the air handler reduces cooling airflow defined in TABLE When 9 ODD AIRFLOW REDUCTION Table X.X. Air Handler Cooling Airflow Reduction 85% 2-ton 3-ton 4-ton 5-ton 80% Table X.X – ODD Airflow Reduction IMPORTANT: The DIP switches are active only when using conventional a 24VAC therIMPORTANT: The DIP switches are2active only when using conventional a 24VAC mostat. If using the Comfort Control System™, refer to Section 5.17 for adjusting airflows. thermostat. If using serial communications, refer to section 5 for adjusting airflows. (Refer to Section 5.9.) NOTE: ODD airflow adjustments are active for cooling operation only. They are ignored when the heat pump is in heating mode or when electric heat is activated. 11 TABLE 10 SELECTION C EXPLANATION: ON DEMAND DEHUMIDIFICATION SWITCH 7 POSITION ODD INPUT ON NONE 24VAC 3-TON 4-TON 5-TON Y1 Y2 Y1 Y2 Y1 Y2 Y1 Y2 500 625 625 775 725 900 950 1200 950 1200 1300 1625 1100 1375 1350 1675 5.18 COOLING DELAY PROFILES Cooling delay profiles are not available when the RHPL air handler is controlled using a conventional 24VAC thermostat. These profiles are available only when the air handler is wired for the Comfort Control 2 System™. Refer to Section 5.10 for Comfort Control 2 Cooling Delay Profiles wiring. 5.19 AIR HANDLER DIAGNOSTIC CODES Descriptions of the air handler Comfort Control 2 diagnostic codes are provided below. These codes can be displayed at the thermostat or via a diagnostic tool. IMPORTANT: Air handler diagnostic codes are available at the thermostat when the system is wired for Comfort Control 2. 23 CONVENTIONAL THERMOSTAT WIRING COOLING AIRFLOW - CFM 2-TON Descriptions of the the air air handler handler serial serial communicating communicating control control diagnostic diagnostic codes codes are are provided provided Descriptions of Thesecodes codescan canbe bedisplayed displayedatatthe thethermostat thermostator orvia viaaadiagnostic diagnostictool. tool. below. These below. X.X Air Handler Diagnostic Codes 7-Segment Status/Possible Cause – Troubleshooting LEDs Display AIR HANDLER IMPORTANT: Air diagnostic codes are at the the system IMPORTANT: Air handler diagnostic codesDIAGNOSTIC are available available atCODES the thermostat thermostat when the system isis Descriptions of the airhandler handler serial communicating control codeswhen are provided Code Descriptions of the ICC diagnostic codes arediagnostic provided below: Diagnostic Description Information wired for serial communications. If wired serialcodes communications. If at the thermostat or via a diagnostic tool. below.for These can be displayed d1 – No SharedCodes Data X.X Air Handler Diagnostic CONVENTIONAL THERMOSTAT WIRING • Replace memory card with correct system The control board does not have shared information 7-Segment 7-Segment 7-Segment 7-Segment data. Status/Possible Cause – Troubleshooting Troubleshooting IMPORTANT: Airair handler diagnostic codes are available atdiagnostic the thermostat when the system is Status/Possible Cause LEDs Display Descriptions handler serial communicating control codes provided LEDsDisplay Display of the Diagnostic Description Status/Possible Cause –are LEDs Status/Possible Cause ––Troubleshooting Troubleshooting LEDs Display Information Code wired for serial communications. If d3Diagnostic – Airflow CFM Code Diagnostic Description Information Misapplied/wrong Code Description Information Code Information Diagnostic Description below. These codes can be displayed atMismatch the thermostat or via a• diagnostic tool. indoor air mover – replace The air handler cannot supply the required with properly sized air handler/furnace. d1 – No Shared Data d1 – No Shared Data d1 – No Shared Data d1 – No Shared Data • Replace memory card with system airflow for proper system operation ELECTRONICScorrect GROUP TO ELECTRONICS GROUP TO 7-Segment The control board does not have shared data. information IMPORTANT: Air handler diagnostic codes are available at the thermostat when the system is Status/Possible Cause card – Troubleshooting LEDs Display DESCRIBE d4 – (Device) If Memory Card Invalid for • CheckDESCRIBE memory to ensure it matches wired for serial communications. Code Diagnostic Description Information 7-Segment Device device d3 Airflow CFM Mismatch Misapplied/wrong indoor air mover replace d3 Airflow CFM Mismatch 7-Segment •••• Misapplied/wrong indoor air mover –––replace d3– Airflow CFM Misapplied/wrong indoor mover – replace d3 Airflow CFM Mismatch Misapplied/wrong indoor air mover replace d1 ––––No Shared Data Status/Possible Cause – air Troubleshooting LEDs Display The data inMismatch the memory card inserted into The indoor air mover (air handler/furnace) air handler cannot supply the required properly sized air handler/furnace. The with with properly sized air handler/furnace. The indoor air mover (air handler/furnace) 7-Segment Status/Possible Cause – Troubleshooting LEDs Display with properly sized air handler/furnace. The indoor air mover (air handler/furnace) ELECTRONICS GROUP with properly Information sized air handler/furnace.TO Code Diagnostic Description the control board does not match the data in airflowsupply for Diagnostic proper system operation cannot supply the required airflow for the required airflow for Status/Possible Cause Troubleshooting LEDs Display d1cannot Code Description Information cannot supply the required airflow for – No Shared Data • Replace memory card with –correct system the control. DESCRIBE proper system operation proper system operation Code Information Diagnostic Description d1 – No Shared Data proper system operation • Replace memory card with correct system The control board does not have shared information d5 – Card Hardware Conflict • Replace the air handler motor with the correct X.X Air Handler Diagnostic Codes 7-Segment Check memory card indoor to ensure itmover matches– replace –control (Device) Memory Card Invalid forfor • Misapplied/wrong d4––– d4 (Device) Memory Card Invalid for • d4 (Device) Memory Card Invalid d1 No Shared Data The board does not have shared • d3 Airflow CFM Mismatch d4 (Device) Memory Card Invalid for information air • data. The motor horsepower is not correct for the horsepower motor. Device device Status/Possible Cause –GROUP Troubleshooting LEDs Display Device Device ELECTRONICS TO data. The indoor aircard mover (air handler/furnace) Device with properly sized air handler/furnace. The memory is missing or the data in the air CFM handler • Check• ifReplace memory card is present the memory card –with correct system d3 – Airflow Mismatch Code Diagnostic Description Information • Misapplied/wrong indoor air mover replace Descriptions of cannot the airsupply handler serial communicating control diagnostic codes are provided the required airflow memory card does not match the data for in the DESCRIBE information. d3 ––Airflow CFM Mismatch •with indoor aircorrect mover system – replace air handler cannot supplyatthe required properly sized air handler/furnace. d1 No Shared Data • Misapplied/wrong Replace memory card with control. proper system operation below. TheseThe codes can be displayed the thermostat or via a• diagnostic tool. 7-Segment 7-Segment The air handler cannot supply the required d8 – Old Shared Data with properly sized air handler/furnace. If system will not operate, order new memory for proper system operation The control board does not have shared information 7-Segment airflow d3 Airflow CFM Mismatch indoor mover – replace d5–––(Device) Card Hardware Conflict Replace the air handler motor with the correct Memory Card Invalid for •••• Misapplied/wrong Status/Possible Cause –– air Troubleshooting LEDs Status/Possible Cause Troubleshooting LEDs Display Display d4 airflow for proper system operation System data is obsolete card to update system information. data.indoor horsepower motor. The air moverCard (air Status/Possible Cause – Troubleshooting LEDs Display d4Device motor Diagnostic horsepower is nothandler/furnace) correct for the with properly sized air handler/furnace. –The (Device) Memory Invalid forare Code Information Description • Check card tocard ensure matches Code Diagnostic Description Information IMPORTANT: Air handler diagnostic codes available atmemory the when the system system is • Replace thethermostat memory with it correct air handler Code cannot supply the required airflow for Diagnostic Description Information d4 – (Device) Memory Card Invalid for • Check memory card to ensure it matches Device d1 – No Shared Data device d3 – Airflow CFM Mismatch • Replace memory card with correct system • Misapplied/wrong indoor air mover – replace information. d1 – No Shared Data • Replace memory card with correct system wired for serial communications. If proper system operation d1 –control No Shared Data • information Replace memory card with correct system Device device The data in the memory card inserted into 68 – ECM No Signal The board does not have shared The air handler cannot supply the required • Make sure the ECM motor wiring harness with properly sized air handler/furnace. The control board does not have shared information d6 ––data BLWR HP CNFLCT Replace the motor with correct horsepower d4 (Device) Memory Card Invalid for control board does not have shared •• information The in the memory card inserted into •••to thedata. control board does not match the data in The ECM motor is not communicating airflow for proper system operation plugged into the ECM motor and control data. Blower Horsepower conflict motor. Device data. 7-Segment thethe control does not match the control. the board air handler control board. The horsepower data in the memory carddata in • Replace board. the memory card with correct system d3 – Airflow CFM Mismatch d4 – (Device) Memory Card Invalid for • Misapplied/wrong indoor mover – replace • Check memory card to ensure it ensure matches Status/Possible Cause –air Troubleshooting LEDs Display d5the d3 –control. Airflow CFM Mismatch Misapplied/wrong indoor air mover replace notHardware matchCFM the motor horsepower. information. memory card to –does Card Conflict • ••Replace the airCheck handler motor with the ––correct • Test the ECM motor for proper operation using d3 – Airflow Mismatch Misapplied/wrong indoor air mover replace The air handler cannot supply the required Device with properly sized air handler/furnace. device it matches device Code The air handler cannot supply the required Diagnostic Description Information with properly sized air handler/furnace. d5 – Card Hardware Conflict • Replace the air handler motor with the correct The motor horsepower is not correct for the horsepower motor. a service tool. The air handler cannot supply the required with properly sized air handler/furnace. 30 Fuse Open •• The The3-amp 3-amp fuse onthe theICC ICC is open.system airflow for proper system operation 30 ––––motor Fuse Open The data in the memory card insertedfor into fuse on open. 30 Fuse Open The 3-amp fuse on the ICC open. airflow for proper system operation d1 No Shared Data isSensor not correct the • •••Replace horsepower motor. d7 BLWER MFG CNFLCT Replace thememory memory card withisis correct airThe handler the with correct system 81 –horsepower Return Air Out of Range airflow for proper system operation •voltage Make sure card the sensor is is plugged intoorthe air The ICC detects the on-board fuse is open The ICC detects the on-board fuse is open the control board does not match the data in • Low wiring at R and C damaged The ICC detects the on-board fuse is open • Low voltage wiring at R and C damaged or The System does not have any data on the information. ELECTRONICS GROUP TO • Low voltage wiring at R and C ismatches damaged or air –handler Replace the memory card withititis correct system d4 (Device) Memory Card Invalid for • Check memory card to ensure information. The resistance of the sensor out of range for handler control board. d4 – (Device) Memory Card Invalid for • Check memory card to ensure matches installed motor.Memory Card Invalid for the control. miswired. miswired. d4 – (Device) miswired. • Check memory card to ensure it matches information. device DESCRIBE normalData operation. d8Device –d5Old Shared • If• system not operate, order Device • will Check the resistance ofnew the memory sensor. Replace if device –Old Card Hardware Conflict Replace the air handler motor correct Device device d8 – Shared Data • If system will not operate, orderwith newthe memory The data in the memory card inserted into System data is obsolete card to update system information. The data in the memory card inserted into it is out of tolerance. • • The motor horsepower is notinserted correct for 30 Fuse Open motor. d8––control –data Old Shared Data Ifhorsepower system will not operate, order new memory d3 Airflow Mismatch •••• The 3-amp fuse on the ICC is mover open. The in the memory card intothe Misapplied/wrong indoor air – replace System data isCFM obsolete card to update system information. the does not match the data in the control board does not match the data in 82 –board Air Sensor Out of Range • update Make sure the sensor isisplugged into System data isSupply obsolete card to system information. air handler The ICC detects the on-board fuse is open The indoor air mover (air handler/furnace) • Replace the memory card with correct system the control board does not match the data in with properly sized air handler/furnace. • Low voltage wiring at R and C damaged orthe air the the control. control. The resistance of the sensor out of range for handler control board. cannot supply the required airflow for information. the miswired. 68d5 – ECM No Signal • ••Make sure the the ECM motormotor wiring harness ––control. Card Hardware Conflict Replace air handler the d5 Card Hardware Conflict normal operation. Replace thethe airECM handler motor with the correct correct •sure Check the resistance ofwith the sensor. Replace if proper system operation 68 – ECM No Signal d8 – Old Shared Data d5 Card Hardware Conflict Make motor wiring harness • If system will not operate, order new memory • Replace the air handler motor with the correct The ECM motor is not communicating to plugged into the ECM motor and control The motor horsepower is not correct for the horsepower motor. The motor horsepower is not correct for the • horsepower motor. • it is out of tolerance. 60 – BLWR FLT–RUN • TEST the ECM for proper operation. 30 – Fuse Open • The 3-amp fuse on the ICC is open. • The ECM motor is not communicating to d4 –handler (Device) Card System data isMemory obsolete motor horsepower is not Invalid correct for the •board. plugged intomotor. thesystem ECM motor and control card to update information. horsepower theair airhandler control board. •• Replace the card with correct system The ECM motor isthe running but has a is open air handler Replace the memory memory card with correct system 93detects – Internal Control The ICC on-board fuse •voltage Check control for proper operation. Low wiring atcard R and C issystem damaged or the air handler control board. Fault Device air handler board. Replace the memory with correct system • ••Test the ECM motor for proper operation using fault information. information. The air handler control is not functioning. • Replace control miswired. • information. Test thetool. ECM motor for proper operation using d8 Shared Data ••a• service If system will operate, new memory d8 Old Shared Data 68–––Old ECM No Signal IfMake system will not operate, order new memory sure thenot ECM motororder wiring harness a service tool. d8 –– Old Shared Data • If system will not operate, order new 81System – Return Air Sensor Out of Range 61 BLWR FLT–NO RUN • Make sure thesensor ECM motor wiring harness is • Make sure the is plugged into thememory air data is obsolete card to update system information. System data is obsolete The ECM motor is not communicating to • card to update system information. • plugged into the ECM motor and control • 81 – Return Air Sensor Out of Range The ECM motor is not operating System data of is obsolete Make sure sensor isinformation. plugged into the air plugged intothe the ECM motor and control board. card tocontrol update system The resistance the sensor out of range for handler board. the air handler control board. board. • handler Test the ECM motor forthe proper operation. The resistance control board. normal operation.of the sensor out of range for • Check the resistance of sensor. Replace if Test the ECM motormotor proper operation normal operation. 68 No Check the resistance offorthe sensor. Replaceusing if ••it• is Make sure the ECM wiring harness out of tolerance. 68 –– ECM ECM No Signal Signal Make sure the ECM motor wiring harness a isservice tool. 68 ECM NoSignal Signal •• plugged Make sure thethe ECM motor wiring harness Make sure the ECM motor wiring harness is 68 ––ECM ECM motor No is communicating to it out of tolerance. into ECM motor and control The ECM motor is not notOut communicating to • •Make 82The –81 Supply Air Sensor of Range plugged into the ECM motor and control sure the sensor is plugged into the air –ECM Return Air Sensor Out of of Range Range plugged into the ECM motor andand control The ECM motor isSensor to to The motor isnot notcommunicating communicating Makesure sure the sensor plugged into theair air plugged into the ECM motor control •• board. the handler control board. 82 –air Supply Air Out Make the sensor isis plugged into the the air handler control board. The resistance of the sensor outout of range for for •handler board. control board. the air handler control board. board. The resistance of the sensor of range the air handler control board. handler control board. board. The resistance of the sensor out of range for • ••Check handler control board. Test the ECM motor proper operation normal operation. Test theECM ECMmotor motor for proper operation using the resistance of the sensor. Replace if Test the forfor proper operation usingusing normal operation. Check the resistance of the sensor. Replace •••• aTest the ECM motor for proper operation using normal operation. service tool. the resistance of the sensor. Replace ifif tool. aa service service tool. it isCheck out of tolerance. it is out of tolerance. a service tool. ––– Return Air Sensor Out Range itMake is out ofthe tolerance. Make sure the sensor plugged into the 81 Return AirSensor Sensor Out of Range 9381 –82 Control Fault sure the sensor issystem plugged into the air air • •••Check control for proper operation. Make sure sensor is is plugged the air 81Internal Return Air Out ofof Range 30 Fuse Open The 3-amp fuse on the isinto open. Supply Air Sensor Out ofRange Range 81 ––––resistance Return Air Sensor Out of Make sure the sensor isICC plugged into theair air •••• handler Make sure the sensor is plugged the The of the sensor out of range for control board. 93 Internal Control Fault Check control for proper system into operation. The resistance thesensor sensor out of range handler control board. The resistance ofofthe out of range for for • •Replace The air handler control is not functioning. handler control board. control The ICC detects the on-board fuse is open Low voltage wiring at R and C is damaged or The resistance of the sensor out of range for The resistance of the sensor out of range for handler control board. handler control board. normal The air operation. handler control is not functioning. normal operation. Check the resistance ofof thethe sensor. Replace if if ••• Check the resistance sensor. Replace Replace control normal operation. Check the resistance of the sensor. Replace if miswired. normaloperation. operation. normal Check the resistance of the sensor. Replace •• itCheck the resistance of the sensor. Replace ifif it is is out of tolerance. it is out outof oftolerance. tolerance. out oftolerance. tolerance. ititisisout of 82 Air Sensor Out Range ••• Make sure the sensor the Make sure is is plugged intointo the air 82––– Supply Supply Air of of Range 82 Supply AirSensor SensorOut Out of Range Make surethe thesensor sensor is plugged plugged into the air air 93 – Internal Control Fault 82 – Supply Air Sensor Out of Range • Check control for proper systeminto operation. • Make sure the sensor is plugged the air The of the sensor handler control board. The resistance resistance of outout of of range for for handler control board. The resistance ofthe thesensor sensor out of range range for handler control board. The airoperation. handlerofcontrol is not The resistance the sensor outfunctioning. of range for handler control board. Replace control normal operation. Check the resistance of thethe sensor. Replace if if13 normal •••• Check the resistance normal operation. Check the resistance of of the sensor. sensor. Replace Replace 13 if normal operation. it is is out of tolerance. • itCheck the resistance of the sensor. Replace if out of tolerance. it is out of tolerance. itCheck is outcontrol of tolerance. system operation. 93––– Internal Internal Control 93 Control Fault •••• Check for proper system operation. 93 Internal ControlFault Fault Checkcontrol controlfor forproper proper system operation. 93 – Internal Control Fault • Check control for proper system operation. The air handler control is not functioning. • Replace control The air handler control is not functioning. •• Replace control The air handler control is not functioning. Replace control The air handler control is not functioning. • Replace control 13 7 0 13 24