User Guide for valent models including: Heat Cool Only Controls for Dedicated Outdoor Air System, Only Controls for Dedicated Outdoor Air System, Dedicated Outdoor Air System, Outdoor Air System
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DocumentDocumentDocument 486988 Heat-Cool Only Controls for Dedicated Outdoor Air System Supplement Microprocessor Controller Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with these instructions will result in voiding of the product warranty and may result in personal injury and/or property damage. Technical Support Call: 1-800-789-8550 Email: support@doas.com Overview This document is to be used in conjunction with the Microprocessor Controller for Dedicated Outdoor Air System Installation, Operation and Maintenance Manual (IOM). All safety information provided in that IOM pertains to Heat-Cool Only controls also. Heat-Cool Only Overview Heat-Cool Only is designed to allow third-party control of a packaged DX, or Heat Pump unit while maintaining the safeties of the refrigeration system and heating devices. To achieve this, the Heat-Cool Only controller is factory installed and factory commissioned. This controller is responsible for the operation of the refrigeration and heating components installed in the unit. The safety of the refrigeration system is assured by monitoring pressures and temperatures contained within the refrigeration circuit(s). The third party is required to control the following: supply and exhaust airflow, cooling or heating operation selection, dehumidification enable, temperature setpoints, and emergency shutdown. END DEVICES: End devices required for Heat-Cool Only operation are provided and installed in the unit for the sole purpose of operating the heat/cooling control system. Sensors required for the third-party controller operation are to be provided and installed by the third party. Additionally, the third-party control system may use additional end devices not provided by the factory. Please refer to the unit's submittal information for the exact unit configuration and selected options to determine factory provided end devices. WARNING Powering the third-party controller is the responsibility of the third party. The third party will supply and install a transformer to power their controller. This power cannot be taken from the control panel. The third-party device cannot be mounted in the electrical control panel of the unit. Additionally, a third-party device that is field supplied and installed provides occupancy, temperature, and airflow monitoring. This third-party device interfaces to the Heat-Cool Only controller via a terminal strip in the control cabinet, as represented in the image below. Third Party Controller Terminal Strip Heat-Cool Only Controller Refrigeration & Heating Components Non-tempering Components Heat-Cool Only Controls for DOAS 1 Table of Contents Overview . . . . . . . . . . . . . . . . . . . . . . 1 Third Party Responsibilities . . . . . . . . . . . . 3 Operation of Unit . . . . . . . . . . . . . . . . . . 6 Appendix A: Terminal Strip Wiring . . . . . . . . . . . . . . 7 B: Gas Furnace Limitations. . . . . . . . . . . . . 8 C: Supply and Exhaust Airflow Connections. . . . 9 D: GreenTrol Airflow Connections . . . . . . . . . 10 Our Commitment . . . . . . . . . . . . . Backcover 2 Heat-Cool Only Controls for DOAS Third Party Responsibilities Occupancy, temperature, airflow, and third-party device power with Heat-Cool Only are the responsibility of the third party through a third-party device. This control not only includes the timing of each occupied mode, but logic for enabling and modulating all non-refrigeration or heating components. Occupancy Scheduling and occupancy mode control are the responsibility of the third party. WARNING When modulating the gas furnace heating capacity, it is recommended to maintain a maximum temperature rise and a minimum airflow for all units. The criteria must be met when controlling the staging and modulation of the gas furnaces in order to prevent improper combustion and damage to the unit. Please see Appendix B Heat-Cool Only Heating Limitations for minimum airflow specific to the unit Airflow size and furnace installed. Maintaining the proper airflow by enabling and modulating the fans and dampers is the responsibility Please refer to the unit's submittal information for the exact gas furnace performance data. of the third-party controller. During normal operation, airflow should continue over the unit's heat exchangers after removing the remote start command to the Heat-Cool Only controller. For units with variable speed compressors, the - Gas Furnace Heat: When the unit is heating with a gas furnace, limit turndown to the minimum airflow based on the unit size or 50.0% of design airflow, whichever value is greater. compressors may take up to two minutes to completely Please see Appendix B Heat-Cool Only stop. Additionally, in heating mode, supply airflow Heating Limitations for minimum airflow specific should continue until the supply air temperatures drop to the unit size and furnace installed. below 80ºF to dissipate the heat remaining in the heating devices and prevent excessive component temperatures. DAMPER POSITIONING: Dampers will need to be powered and a position signal provided, when the dampers are modulating. Prior to starting fans in the unit, the third party will ensure that there is an open path for airflow by confirming that the damper end switch is closed, when installed. · Exhaust fan: Exhaust fan modulation will need to maintain the building requirements. Energy Recovery Control of energy recovery equipment installed in the unit is the responsibility of the third party. A heat wheel with or without a VFD, a core with face/bypass dampers or a bypass only damper must be controlled to a thirdparty provided sensor. FAN MODULATION: The enable and modulation signals are the responsibility of the third-party controller. · Supply Fan: Supply fan modulation will need to follow these guidelines. The end switch signal must be received prior to the start of any fans in the unit when installed. - Cooling or Heat Pump Heating: When the unit is operating in cooling mode or heat pump heating, the fan turndown must be limited to a minimum of 50% of the designed airflow to ensure the refrigeration system can adequately modulate to meet the desired temperature setpoints. Modulating below 50% of the designed airflow may result in loss of space temperature control ENERGY WHEEL BYPASS DAMPER: When provided, the energy wheel bypass damper needs to be opened when exceeding design outdoor airflow rate in economizer mode by turning off the energy recovery wheel. ENERGY CORE DAMPERS: When selected, the energy core may have either face and bypass dampers or only a bypass damper. · Face/Bypass Dampers: When face and bypass dampers are both installed, the signal to the actuator would be 2-10V that is the desired for energy recovery. The signal in this situation is controlling the face damper and the bypass is the inverse of the signal. and have a negative impact on the refrigeration and heating components. - Electric Heat: Supply fan modulation must be limited to the minimum airflow requirements of the electric heater manufacturer. The minimum air flow required through a duct heater depends on the KW per square foot of face area for the highest capacity ON-OFF stage. In general, 500 · Bypass Only Damper: When only a bypass damper is installed, the signal to the actuator would be 2-10V also. However, the signal is the opposite of the desired for energy recovery. If 80% energy recovery is desired, then the signal to the bypass damper should be 20% or 2 volts. The signal is controlling the bypass damper. FPM is adequate in most applications. Please contact technical support to get more information regarding specific products. Heat-Cool Only Controls for DOAS 3 Third Party Responsibilities ENERGY RECOVERY DEFROST: Both forms of energy recovery must have a defrost sequence provided via the third-party controller. · Energy Recovery Wheel: The third party will provide either an exhaust air temperature sensor or heat wheel pressure differential sensor/switch when pre-heat is not installed in the unit and the energy recovery device is used for exhaust air energy recovery. The exhaust air temperature must remain above 36°F or the differential pressure is less than 1.5"wc when the outside air temperature is below 10°F. · Energy Core: The third party will provide an exhaust air temperature sensor when pre-heat is not installed in the unit and the energy recovery device is used for exhaust air energy recovery. The exhaust air temperature must remain above 36°F. · Electric Preheat: When a preheat device is installed for energy recovery defrost, the third-party controller needs to ensure that the following conditions are met prior to enabling the preheat device. · Outside Air Damper >=30% open; AND · Supply Fan enabled; AND · Outdoor Air Temp < 10°F. NOTE: Please see manufacturer's information for suggested minimum cfm for pre-heat. Temperature · Supply Air Temperature Control: When the unit has a HGRH coil or heating, there will be a Supply Air Temperature Setpoint input for the third-party controller. This setpoint will range between 50°F and 95°F in all modes of operation. The HGRH valve and heating devices will control to this setpoint. NOTE: A minimum setpoint of 60.0°F is advised in heating mode of a heat pump. · Supply Temperature Limits: The heat-cool only controller also has high and low temperature limits. These limits are adjustable at the controller and will cause cooling or heating to be disabled. It is the responsibility of the third party to maintain the following conditions: · Minimum Low Supply Temp Limit: 35°F · Maximum High Supply Temp Limit: 120°F · Mode Switching Cooling vs Heating: When heating and cooling are both installed in the unit, the third party is responsible for determining which mode of operation is required at any given time. The Cooling/Heating Control Mode input will be open for cooling or closed for heating. When the input changes state, the unit will shut down the current operation of the cooling or heating devices and switch to the other mode of operation after the mode switch timer expires. Heat-Cool Only Control requires the third party to make decisions based on operating conditions and setpoints to heat, cool, dehumidify, or economize. The third-party controller will communicate setpoints, via hard-wired 2-10 VDC signals, based on the operating mode: · Cooling Cooling Coil Setpoint · Dehumidifying Cooling Coil and Supply Air Setpoints · Heat Pump Heating Supply Air Setpoint · Heating Supply Air Setpoint The third-party controller needs to control the amount of economizer and energy recovery capacity necessary to meet the current requirements, depending on the equipment installed in the unit. Analog output signals are sent via the terminal strip that interfaces with the controller or directly to the end devices. Please refer to the unit wiring schematics or see Appendix A Terminal Strip Wiring for further information regarding control input types and terminal strip wiring. · Cold Coil Temperature Control: The thirdparty controller will send a signal to control the compressors in the unit. This setpoint will range between 50ºF and 75ºF in cooling and dehumidification modes of operation. · Mode Switching Cooling vs Dehumidification: When a hot gas reheat coil is installed in the unit, the third party is responsible for determining when the hot gas reheat will control to the Supply Air Temperature Setpoint. The Cooling/Dehumidification Control Mode input will be open for cooling only or closed when reheat is desired. Digital Status The Heat-Cool Only terminal strip provides the third-party controller with information from devices installed in the unit. The following information is available through those digital statuses. OUTSIDE AIR DAMPER ACTUATOR END SWITCH: When installed, this status provides an indication that the outside air damper actuator has reached a specific open position. CONDENSATE OVERFLOW SWITCH: This device, when installed, indicates when the condensate drain pan is full and further operation of the refrigeration system could cause an overflow of water in the pan. ENERGY RECOVERY STATUS: When installed, the energy recovery device may have an indication back to the terminal strip that the device is rotating, or the bypass is open. 4 Heat-Cool Only Controls for DOAS Third Party Responsibilities FILTER PRESSURE SWITCH: If a filter pressure switch or switches is installed, an indication back to the third-party indicates that the filters are dirty. GLOBAL ALARM OUTPUT: The global alarm output is available on all Heat-Cool Only units. This status indicates that there is an alarm condition in the HeatCool Only controller. Digital Commands FIRE ALARM: This input is to integrate the building fire alarm into the unit operating system and will disable any airstream refrigerant leak detection system response. Only to be used for a fire alarm input. Overriding the leak detection system is only allowed during a fire alarm per ASHRAE 15. All heating or cooling operation will stop when this input is open. The shutdown of all other devices in the unit controlled directly by the third-party controller (i.e. fans, dampers, energy recovery) is responsibility of the third party and is not controlled by this unit. This input affects the Global Alarm status. REMOTE START/STOP: This input is to remotely start or stop the refrigeration and heating control of the unit. This input will be closed for the unit to provide cooling or heating. COOLING/DEHUMIDIFICATION CONTROL MODE: This input determines whether the unit is in cooling mode or dehumidification mode. COOLING/HEATING CONTROL MODE: This input determines whether the unit is in cooling or heating mode. A2L SYSTEM RESPONSE: This is a standard hardwired system for units with refrigeration that monitors for refrigerant leaks within the unit and will respond in two ways. 1. If the leak is detected in the air tunnel, the unit will override supply fan operation and damper operation to move stagnant refrigerant from within the unit, duct, and space, ensuring proper dilution. The system will also disable any ignition sources in the airstream zone and disable compressor operation. The supply fan will spin at the higher of the following: the minimum allowable CFM to allow heat operation or the UL-required minimum airflow to dilute the refrigerant. If recirculation dampers are present the unit will be forced into 100% recirculation mode. If the unit is selected as 100% outdoor air the damper will be forced into 100% outdoor air. Heat operation (electric post heat and indirect gas heat) is allowed during an airstream refrigerant detection alarm. The building is responsible for controlling the energy wheel speed and frost control as well as the exhaust fans. 2. If the leak is detected in the compressor section, the unit will disable the compressor operation and the indirect gas heat. The airstream fan will not be forced on. Heat operation will not be allowed. If the unit does not have an indirect gas heater there will not be a refrigerant sensor in the compressor section. Alarm outputs are available for monitoring and external action requirements. These requirements include opening of zone dampers in the ductwork, disabling duct mounted electric resistance heaters, and/or enabling mechanical ventilation. These outputs are available to the building management system or through hardwire mitigation system contacts in the unit control section. Verification of the mitigation system response must be performed at start-up by removing the A2L mitigation test jumper found in the control section of the unit. Additional testing may be required by local code. The refrigerant sensors installed in the appliance will initiate a safety sequence if a leak is detected. Maintain the sensor to be free of any dust or other contaminants. The alarm status is available in the form of an electronic signal from the appliance controller and a relay dry contact suitable for building safety sequences. The end of life of the sensor will result in the appliance operating and displaying that there is a leak detected. Please reference the blink code on the bottom of the sensor and order a new sensor from the OEM. Sensor blink code status: Solid green = sensor power-up and self-test Blinking green = normal operation (heartbeat) Solid red = alarm state gas detected Blinking red = sensor fault replace sensor. Heat-Cool Only Controls for DOAS 5 Operation of Unit All Modes The following conditions are required for the third party to enable the unit to operate in any mode: · Remote Start Input: Closed · Shutdown Input: Closed · Damper Positioning: OAD/RAD End Switch Closed (when installed)** · Supply Fan Status: Closed · Supply Fan Control: Not below 50.0% of the full-load airflow for the unit** **NOTE: These safety checks are the responsibility of the third-party controller and do NOT input to the controller. Cooling The following conditions are required for the third party to enable the unit and start compressors in cooling mode: · Cooling/Dehumidification Control Input: Cooling mode (Open) · Cooling/Heating Control Input: Cooling mode (Open) · Outside Air Temperature: > Cooling Ambient Lockout (55.0°F) (adj.) · Cooling Coil Leaving Air Temp: > Coil Low Temp Limit (42.0°F) (adj.) · Refrigerant Pressure Switches: Closed (Both High and Low) · Supply Air Temperature: > Minimum Low Supply Temp Limit (35.0°F) · Cooling Coil Setpoint: 50 - 75°F scaled from 2-10vdc (Compressor staging) Dehumidifying NOTE: Hot Gas Reheat must be installed in the unit to utilize this functionality. The following conditions are required for the controller to enable a unit in dehumidification mode: · Cooling/Dehumidification Control Input: Dehumidification mode (Closed) · Cooling/Heating Control Input: Cooling mode (Open) · Outside Air Temperature: > Cooling Ambient Lockout (55.0°F) (adj.) · Cooling Coil Leaving Air Temp: > Coil Low Temp Limit (42.0°F) (adj.) · Refrigerant Pressure Switches: Closed (High and Low) · Supply Air Temperature: > Minimum Low Supply Temp Limit (35.0°F) · Supply Air Setpoint: 50 - 95°F scaled from 2-10vdc (HGRH valve modulation) · Cooling Coil Setpoint: 50 - 75°F scaled from 2-10vdc (Compressor staging) Heating The following conditions are required for the controller to enable a unit in heating mode: · Heating/Cooling Control Mode: Heating mode (Closed) · Outside Air Temperature: < Heating Ambient Lockout (80.0°F) (adj.) · Supply Air Temperature: < Maximum High Supply Temp Limit (120.0°F) · Supply Air Setpoint Request: 50 - 95°F scaled from 2-10vdc Heating - Heat Pump The following conditions are required for the controller to enable a unit and start compressors in heating mode. · Heating/Cooling Control Mode: Heating mode (closed) (Heat Pumps Only) · Outside Air Temperature: < Heating Ambient Lockout (80.0°F) (adj.) · Outside Air Temperature: > ASHP Low Ambient Lockout (17ºF) (adj.) (ASHP only) · Refrigerant Pressure Switches: Closed (High and low) · Supply Air Temperature: < Maximum High Supply Temp Limit (120.0°F) · Supply Air Setpoint Request: 50-95°F scaled from 2-10vdc 6 Heat-Cool Only Controls for DOAS Appendix A: Terminal Strip Wiring Third-Party Wiring The following table/diagram is the terminal strip wiring of the terminal strip for Heat-Cool Only operation. This terminal strip is the wiring point for the third-party control's device. Please refer to the unit schematics for additional information. Terminal 50C (2) 501 502 503 51C 511 512 60C (2) 601 602 603 604 605 606 607 70P (2) 701 702 703 704 80C (3) 801 802 803 804 805 806 90C (2) 901 (2) 902 903 904 71 72 73 74 74 76 Terminal Type 0.0-10.0 VDC 0.0-10.0 VDC 0.0-10.0 VDC * 2.0-10.0 VDC 2.0-10.0 VDC 2.0-10.0 VDC 24 VAC 24 VAC 24 VAC 24 VAC 24 VAC 24 VAC 24 VAC 24 VAC 24 VAC 24 VAC 24 VAC 0.0-10.0 VDC 0.0-10.0 VDC 0.0-10.0 VDC R21 NC R21 Common R21 NO R23 NC R23 Common R23 NO Description/Device Common Supply Fan Speed Input Exhaust Fan Speed Input Energy Recovery Capacity Input * Common from Controller Cooling Coil Temperature Setpoint Input Supply Air Temperature Setpoint Input Common Outside/Recirc Air Damper Signal Outside/Recirc Air Damper Actuator Power Supply Fan Start Exhaust Fan Start Energy Recovery Wheel Start Pre-Heater Enable Return/Exhaust Damper Actuator Power 24 VAC power or 24 VAC common from unit Building Fire Alarm Remote Start Input Cooling(0)/Dehumidification(1) Control Mode Cooling(0)/Heating(1) Control Mode Common Global Alarm Output (Heat/Cool Alarms Only) Outside Air Damper End Switch (100% OA Units) Condensate Overflow Switch Energy Recovery Status Filter Pressure Switch Return/Exhaust Damper End Switch Common AFMS Power Supply Airflow Measuring Station Exhaust Airflow Measuring Station Outdoor Airflow Measuring Station Airstream Mitigation sequence active Airstream Mitigation sequence active Airstream Mitigation sequence active Indirect Gas Furnace lockout active Indirect Gas Furnace lockout active Indirect Gas Furnace lockout active Third Party IO Type Common Analog Command Analog Command Analog Command Analog Command Analog Command Common Analog Command Digital Command Digital Command Digital Command Digital Command Digital Command Digital Command Digital Command Digital Command Digital Command Digital Command Common Digital Status Digital Status Digital Status Digital Status Digital Status Digital Status Common 24 VAC Analog Feedback Analog Feedback Analog Feedback Status - Alarm/off state is normal state Common Status - Alarm/off state is normal state Status - Alarm/off state is normal state Common Status - Alarm/off state is normal state * This terminal position is for any energy recovery device, heat wheel, core with face/bypass dampers, or core with bypass only damper. The voltage for either core option is 2.0-10.0VDC. Heat-Cool Only Controls for DOAS 7 Appendix B: Gas Furnace Limitations Supply fan modulation must be limited to the minimum airflow based on the unit size or 50% of design airflow, whichever value is greater. When modulating the gas furnace heating capacity, it is recommended to maintain a maximum temperature rise and a minimum airflow for all units. WARNING The following criteria must be met when controlling the staging and modulation of the gas furnaces to prevent improper combustion and damage to the unit. The airflow reduction is only allowed if the supply air temperature does not exceed the max temp rise listed below. The supply air temp must be monitored, and the furnace must be modulated to prevent over-firing of the furnace at low airflows. 1. In the table below, locate the unit casing size, the correct furnace MBH, and the airflow supply direction for the minimum airflow in CFM. 2. All gas furnaces must be limited to the greater of the following: a. minimum airflow in CFM; OR b. 50% of design airflow. 3. The third-party controls will send a 2-10VDC signal to control to a supply air temperature setpoint between 50.0°F (10.0°C) and 95.0°F (35.0°C) during all modes of operation. 4. The third-party controls must have a high supply temperature limit of 120.0°F (48.8°C) that shuts down all heating sources within the unit when the supply air temperature is greater than or equal to this high supply temp limit. 5. Minimum Temp Rise of 20.0°F for all furnaces. Unit Furnace Bottom Discharge Side Discharge CASING SIZE MBH MAX TEMP RISE MIN AIRFLOW CFM MAX TEMP RISE MIN AIRFLOW CFM 75 100.0°F 556 100.0°F 556 VX-12 100 100.0°F 741 100.0°F 741 VXE-12 150 100.0°F 1,111 100.0°F 1,111 200 100.0°F 1,481 100.0°F 1,481 VX-112 100 VXE-112 200 VXC-112 300 100.0°F 100.0°F 100.0°F 741 1,481 2,222 100.0°F 100.0°F 100.0°F 741 1,481 2,222 VX-212 300 VXE-212 400 VXC-212 600 100.0°F 100.0°F 100.0°F 2,222 2,963 3,704 100.0°F 100.0°F 100.0°F 2,222 2,963 3,704 600 100.0°F 4,444 100.0°F 4,444 VX-312 VXE-312 800 1000 100.0°F 100.0°F 5,926 7,407 100.0°F 100.0°F 5,926 7,407 1200 100.0°F 8,889 100.0°F 8,889 8 Heat-Cool Only Controls for DOAS Appendix C: Supply and Exhaust Airflow Calculations If airflow monitoring for the outside air damper is installed it could be one of two types of airflow. Each type has their own calculations and/or setup. Supply and Exhaust Fan Models The following table shows the available models for the supply and exhaust fan blades installed in a unit and the corresponding K Factor for the fan blade. The third party needs to know the model number of the fan, how many fans are installed, and whether the airflow monitoring station was purchased with the supply and/or exhaust fans. Manufacturer Greenheck Greenheck Greenheck Supply and Exhaust Fan Models Model Number Fan Blade Material Fan Blade Diameter PRM-450 Aluminum 450mm/18" PRM-560 Aluminum 560mm/22" PDL-355 Aluminum 355mm/14" K Factor 1899 2975 1160 Supply and Exhaust Fan Airflow Measurement The third-party controller can use the transducer's signal from the supply fan and/or from the exhaust fan and the airflow formula to determine the amount of current airflow. FORMULA: CFM = k * (P) P = Differential Pressure (0.0-30.0 in. wc scaled from 0.0 to 10.0 VDC reading from transducer) k = K Factor (from table) * # of Fans = Square Root NOTE: The supply and exhaust airflow will be calculated separately. Only include the fans of the same type in the calculation. Heat-Cool Only Controls for DOAS 9 Appendix D: Greentrol Airflow Calculations GreenTrol Airflow Monitoring The GreenTrol® airflow monitoring station measures airflow using advanced thermal dispersion technology. An integral LCD display provides a local indication of airflow measurement and device configuration. The GreenTrol also accepts up to two airflow probes for averaging. GreenTrol Airflow Monitor functions: · LCD readout of measured airflow · Dual airflow probe averaging ANALOG OUTPUTS: The airflow monitoring controller has two configurable analog outputs that transmit airflow, temperature, or PID control. They can be configured for one of three analog output ranges: 0-10VDC, 0-5VDC, and 2-10VDC. The controller has been factory configured to use analog output 1 for transmitting outdoor airflow rate and analog output 2 for outdoor air temperature. The airflow monitoring output is wired to the customer terminal strip for Heat-Cool Only controls. See the technical manual for the airflow controller provided with the unit for instructions on configuring the analog outputs and using the Field Calibration Wizard. FORMULA: Calculating airflow based on the analog output signal: Airflow = (Signal Voltage-Minimum Voltage) Full Scale Airflow Maximum Voltage-Minimum Voltage 10 Heat-Cool Only Controls for DOAS Maintenance Log Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Date ___________________Time _____________ AM/PM Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Heat-Cool Only Controls for DOAS 11 Contact Us Contact Us / More Information Technical Support and Service 800-789-8550 support@doas.com Valent Dedicated Outdoor Air Systems 6028th Avenue North Minneapolis, MN 55411 Main: 612-877-4800 More Information Unit Schematics For configuration and connection questions, see the schematics that shipped with your unit. They can typically be found attached to the main control panel door. © 2025 Valent Continuous product improvement is a policy of Valent; therefore, product functionality and specifications are subject to change without notice. For the most recent product information visit the product website. Valent Heat-Cool Controller Part number: 486988 Rev. 2 April 2025Adobe PDF Library 17.0