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AAON Mini Controller User Manual

Manual is about: AAON Mini Controller User's manual

Summary of Mini Controller

  • Page 1

    Aaon mini controller user’s manual qualified installer improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Installation and service must be performed by a trained, qualified installer. A copy of this manual should be kept ...

  • Page 2

    2.

  • Page 3

    3 table of contents safety .............................................................................................................................................. 5 aaon ® mini controller features and options .............................................................................. 7 gen...

  • Page 4

    4 index of tables and figures tables table 1 - control wiring............................................................................................................... 11 table 2 - utc offset ..........................................................................................................

  • Page 5: Safety

    5 safety attention should be paid to the following statements: note - notes are intended to clarify the unit installation, operation and maintenance. Caution - caution statements are given to prevent actions that may result in equipment damage, property damage, or personal injury. Warning - warning ...

  • Page 6: Warning

    6 1. The controller is for indoor use only. See general information section for more information. 2. Read the entire user’s manual. Other important safety precautions are provided throughout this manual. 3. Keep this manual and all literature safeguarded near the equipment. During installation, test...

  • Page 7: Aaon

    7 aaon ® mini controller features and options  lead/single variable capacity scroll compressor control  constant volume control  single zone vav control  air conditioner or heat pump  weekday, weekend, entire week or daily scheduling  12 day holiday scheduling  alarms and trend logging  push...

  • Page 8: General Information

    8 general information the aaon mini controller has been designed for simple single zone system control. Codes and ordinances hvac system should be sized in accordance with the american society of heating, refrigeration and air conditioning engineers handbook. Installation of equipment must conform t...

  • Page 9: Installation

    9 humidity readings range: 0-100% rh accuracy@77°f (25°c): +/-2% rh (10-90% rh) response time: less than 4 seconds environmental limits operating: 34-125°f (1.1-51.6°c) shipping: -40-140°f (-40-60°c) humidity: 0-95% rh non-condensing installation locating and mounting the controller for optimum perf...

  • Page 11: Warning

    11 electrical connection terminations are made to the main terminal block of the controller and the hvac equipment. A complete set of unit specific wiring diagrams, showing factory and field wiring are laminated in plastic and located inside the controls compartment door of the aaon hvac equipment. ...

  • Page 12: Caution

    12 figure 4 - eol and pull-up switch resistor positions on reverse side of controller see bacnet points list section for additional information. Input connections passive input devices require pull-up resistors in the circuit. For passive input devices, such as 10k type 3 thermistors, on the in2 thr...

  • Page 13: Startup

    13 power connection the controller requires an external 24 vac power source. Use a class-2 transformer to supply power. Connect the transformer’s neutral lead to the 24 vac common (- c) terminal and the ac phase lead to the 24 vac phase (~ r) terminal. Power is applied to the controller when the tra...

  • Page 14

    14 when system enable is set to auto, the controller will maintain both the space heating and cooling setpoints with operation depending on the space temperature. When system enable is set to heating, the controller will maintain only the space heating setpoint. When system enable is set to cooling,...

  • Page 15

    15 figure 7 - home screen with flashing service message space temperature alarm activated when the space temperature is outside the range of 56-86°f for over 300 seconds. Alarm is available on all controllers. Space humidity alarm activated when the space humidity is above 65% rh for over 300 second...

  • Page 16

    16 min setpt diff minimum setpoint differential between the cooling and heating space temperature setpoints. Used for both the occupied and unoccupied modes of operation. Default setpoint differential is 2°f and range is 1- 15°f. Deadband space temperature setpoint deadband. Default setpoint deadban...

  • Page 17

    17 advanced menu configuration (advanced) application application menu is used for application configuration. Degree scale °f or °c app controller application standard - air conditioner application heat pump - heat pump application not configured - default value opt number of heating and cooling sta...

  • Page 18

    18 fan - cool min speed minimum cooling speed of a variable speed fan. Default is 30%, range is 30-80% and value must be less than the maximum cooling speed. Fan - heat max speed maximum heating speed of a variable speed fan. Default is 100%, range is 50-100% and value must be greater than the minim...

  • Page 19

    19 comp stg delay (mins) compressor stage delay. Used for cooling and heat pump heating. Default is 3 minutes and range 2-15 minutes. Valve - rev valve heat pump reversing valve options. Active htg - reversing valve is active during the heating mode of operation. Default value. Active cool - reversi...

  • Page 20

    20 factory restore - restore option clears all present values, restores configuration to the defaults and restarts the controller. (advanced) inputs the inputs menu shows all analog inputs, their current value and any calibration offset. (advanced) limits the limits menu allows setting of minimum an...

  • Page 21

    21 heat max on description. Default is 120 units and range is -120-600 units. (advanced) security the security menu allows setting of user, operator and administrator access to setpoint adjustment, main menu, system mode, occupancy override, and fan operation. Passwords for the user, operator and ad...

  • Page 22: Warning

    22 default configuration access default user password = 0000 default operator password = 1988 default administrator password = 2425 note: administrator password is required to set security passwords. If changed, keep a record of the new administrator password in a trusted location. Table 3 - default...

  • Page 23

    23 controller configuration steps 1. Unit application 2. Heating and cooling stages 3. Sensors 4. Supply fan 5. Features 6. Limits 7. Setpoints 8. Date/time 9. Schedule/holidays 10. Trend logs 11. Security access 12. Restart constant volume air conditioner configuration 1. Main menu: advanced: appli...

  • Page 24

    24 6. Main menu: setpoints: check setpoint values 7. Main menu: advanced: date/time: check date and time 8. Main menu: schedule: setup a schedule and holidays single zone vav air conditioner configuration - vav cool + cv heat 1. Main menu: advanced: application: app = standard opt = # heat stages / ...

  • Page 25

    25 4. Main menu: advanced: application: sat control = cooling 5. Main menu: advanced: limits: check limit values 6. Main menu: setpoints: check setpoint values 7. Main menu: advanced: date/time: check date and time 8. Main menu: schedule: setup a schedule and holidays single zone vav air conditioner...

  • Page 26

    26 2. Main menu: advanced: application: additional setup: sensors: oat sensor = yes sat sensor = yes 3. Main menu: advanced: application: additional setup: fan: speeds: variable heating and cooling unocc: on or auto occ: on or auto check minimum speeds 4. Main menu: advanced: application: sat contro...

  • Page 27

    27 8. Main menu: schedule: setup a schedule and holidays constant volume heat pump configuration 1. Main menu: advanced: application: app = heat pump opt = # compressor stages / with or without emergency heat 2. Main menu: advanced: application: additional setup: sensors: oat sensor = yes sat sensor...

  • Page 28

    28 6. Main menu: advanced: limits: check limit values 7. Main menu: setpoints: check setpoint values 8. Main menu: advanced: date/time: check date and time 9. Main menu: schedule: setup a schedule and holidays single zone vav heat pump configuration- vav cool + cv heat 1. Main menu: advanced: applic...

  • Page 29

    29 3. Main menu: advanced: application: additional setup: fan: speeds: variable cooling unocc: on or auto occ: on or auto check minimum speed 4. Main menu: advanced: application: sat control = cooling 5. Main menu: advanced: limits: check limit values 6. Main menu: setpoints: check setpoint values 7...

  • Page 30

    30 single zone vav heat pump configuration- vav cool + vav heat 1. Main menu: advanced: application: app = heat pump opt = # compressor stages / with or without emergency heat 2. Main menu: advanced: application: additional setup: sensors: oat sensor = yes sat sensor = yes 3. Main menu: advanced: ap...

  • Page 31

    31 7. Main menu: setpoints: check setpoint values 8. Main menu: advanced: date/time: check date and time 9. Main menu: schedule: setup a schedule and holidays modulating hot gas reheat mini controller with space humidity sensor (r80580) and wattmaster modulating hot gas reheat board are required for...

  • Page 32

    32 economizer 1. Main menu: advanced: application: additional setup: sensors: configure oa humidity sensor if enthalpy controlled 2. Main menu: advanced: application: additional setup: damper: setup modulating economizer damper and checks setpoint values 3. Main menu: advanced: application: addition...

  • Page 33

    33 fan status 1. Main menu: advanced: application: additional setup: sensor: configure fan status sensor.

  • Page 34: Operation

    34 operation unit operations should be controlled with the controller, never at the main power supply, except for servicing, emergency or complete shutdown of the unit. Cooling single or two stage stage 1 - variable capacity scroll compressor stage 2 - single stage compressor rn/rq - unit size = 3-2...

  • Page 35

    35 variable capacity scroll compressor is de- activated. Single zone vav cooling operation - supply air temperature control when the space temperature has deviated ½ of the space temperature deadband above the cooling space temperature setpoint supply air temperature control is activated. The variab...

  • Page 36

    36 single zone vav heating operation - supply air temperature control when the space temperature has deviated ½ of the space temperature deadband below the heating space temperature setpoint supply air temperature control is activated. The first stage of heating modulates to maintain the heating sup...

  • Page 37

    37 the emergency heating stages are de- activated. Modulating/scr electric heating operates as a single stage of auxiliary/emergency heating. Heating elements modulate using a supply air temperature sensor and setpoint potentiometer to meet a specific supply air temperature setpoint. Modulating natu...

  • Page 38

    38 wired for constant speed/constant volume operation. Single zone vav supply fan supply fan operation is selectable between “auto” and “on”. The supply fan will either cycle with cooling/heating operation (auto) or operate continuously (on). The setting is selectable for both occupied and unoccupie...

  • Page 39

    39 modulate to maintain the suction pressure setpoint. If the space temperature deviates below the space cooling setpoint minus ½ of the space temperature deadband the reheat relay is activated. The dehumidification priority determines whether or not dehumidification mode takes priority over heating...

  • Page 40

    40 bacnet points list table 4 - analog values object read/write description default min max av1 r/w min space temp setpoint diff 2°f 1°f 15°f av2 r active cooling setpoint - - - av3 r active heating setpoint - - - av4 r/w unocc cooling setpoint 80°f 55°f 90°f av5 r/w unocc heating setpoint 64°f 55°f...

  • Page 41

    41 table 5 - analog values continued av44 r/w cool supply fan max speed setpoint 100% 50% 100% av45 r/w dehum suction psi setpoint 119.4 psi 50 psi 250 psi av46 r/w dehum fan speed setpoint 50% 25% 75% av47 r/w unocc dehum setpoint 65% 20% 85% av48 r/w sat low limit alarm 40°f 32°f 60°f av49 r/w hea...

  • Page 42

    42 table 7 - multi-state values object read/write description options msv1 r/w application main standard, heat pump msv2 r/w application sub #heat stages/#cool stages or #comp stages/#emer. Heat stages msv3 r/w fan control constant speed, variable speed cool, variable speed cool and heat msv4 r/w ec...

  • Page 43: Maintenance And Support

    43 maintenance and support (see back of the manual for maintenance log.) at least once each year, a qualified service technician should check out the unit. Supply fans, evaporator coils and air filters should be inspected monthly. Periodically during operation, it is necessary to perform routine ser...

  • Page 44

    44 glossary baud rate: default is 38400 and options available include 9600, 19200, 38400 and 76800. Co2 setpt (ppm): space co 2 override setpoint. Default setpoint is 1100 ppm and range is 500-1800 ppm. Comp1 min off (secs): compressor minimum off time. Default is 120 seconds and range is 120-600 se...

  • Page 45

    45 fan - cool max speed: maximum cooling speed of a variable speed fan. Default is 100%, range is 50-100% and value must be greater than the minimum cooling speed. Fan - cool min speed: minimum cooling speed of a variable speed fan. Default is 30%, range is 30-80% and value must be less than the max...

  • Page 46

    46 min setpt diff: minimum setpoint differential between the cooling and heating space temperature setpoints. Used for both the occupied and unoccupied modes of operation. Default setpoint differential is 2°f and range is 1-15°f. Oat high: description. Default is 150°f and range is 110-160°f. Oat lo...

  • Page 47

    47 aaon mini controller startup form date:_______________ job name:_____________________________________________________________________ address:______________________________________________________________________ model number:_________________________________________________________________ _____...

  • Page 48

    48 maintenance log this log must be kept with the unit. It is the responsibility of the owner and/or maintenance/service contractor to document any service, repair or adjustments. Aaon service and warranty departments are available to advise and provide phone help for proper operation and replacemen...

  • Page 49

    49 literature change history october 2010 revision of the manual correcting the sequence of operation for enthalpy controlled economizer. December 2013 added bacnet points list, glossary, and how relay output 5 can be used as the y1 compressor 1 relay output. March 2014 added dehumidification priori...

  • Page 52

    Aaon 2425 south yukon ave. Tulsa, ok 74107-2728 phone: 918-583-2266 fax: 918-583-6094 www.Aaon.Com aaon mini controller user’s manual r98200 · rev. B · 140311 it is the intent of aaon to provide accurate and current product information. However, in the interest of product improvement, aaon reserves ...