Carrier AQUAZONE 50QE900-250FS Owner'S Manual Download

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OWNER'S MANUAL

P/N 50QE900-250FS

Programmable

Digital Thermostat

Mounts Flush to the Wall
7 Day Programmable
3 Occupied, 1 Unoccupied
Auto Changeover
Large, Easy To Read Display
Thermoglow Backlight
Remote Sensor Ready
Dry Contact Equipped
Energy Saving Smart Fan
Fan Purge, IAQ Feature
Includes Locking Cover

Commercial Systems & Services Carrier Corporation 3/00

Meets California Title 24

Designed for Commercial Water Source Heat Pumps

OOL

EAT

AUTO

I2:00

A Q U A Z O N E

Summary of Contents for AQUAZONE 50QE900-250FS

Page 1: ...geover Large Easy To Read Display Thermoglow Backlight Remote Sensor Ready Dry Contact Equipped Energy Saving Smart Fan Fan Purge IAQ Feature Includes Locking Cover Commercial Systems Services Carrier Corporation 3 00 Meets California Title 24 Designed for Commercial Water Source Heat Pumps 72 74 70 Am COOL HEAT AUTO Mo I2 00 A Q U A Z O N E ...

Page 2: ... Unoccupied ADVANCED SETUP ABOUT ADVANCED OPERATION WARRANTY Page 1 CAUTION Follow Installation Instructions before proceeding SET THERMOSTAT TO MODE OFF PRIOR TO CHANGING SETTINGS IN SETUP OR RESTORING FACTORY DEFAULTS P N 50QE900 250FS 2 3 5 6 8 12 17 23 Commercial Systems Services Carrier Corporation 3 00 ...

Page 3: ...Front Panel Page 2 Liquid Crystal Display with Thermoglow Up Down Buttons Mode Button Override Button Heat or Cool Indicator Heat Red Cool Green Temperature Sensor Bubble 1 2 3 4 5 6 1 3 5 2 4 6 ...

Page 4: ...AM ON indicates the stored program is enabled to run Page 6 Clock with Day of the Week Indicates the current time and day This clock is also used to program the timer periods Page 5 Room Temperature Display Indicates the current room temperature Desired Set Temperature Indicates desired room temperature s Page 7 Display Page 3 1 2 1 5 1 3 6 7 10 9 8 4 4 11 1 1 88 88 88 unoccupied Program Fan On Se...

Page 5: ...cates constant continuous fan operation When Fan On is not lit indicates the fan will only operate when necessary to heat or to cool Page 12 Service Filter Indication Service Filter indicates when the filter should be serviced under normal conditions Appears after 0 1950 hours of blower operation adjustable Page 14 Locked Indication Locked appears after the right combination of buttons are pressed...

Page 6: ...nds to enter Setup screens Press both Mode and Override buttons as above to return to normal operation Quick Start Set the Clock and Go Page 5 The thermostat is preprogrammed from the factory to operate 1 or 2 Stage equipment without the need for further programming To optimize the installation of this thermostat follow the instructions in the Advanced Setup section buttons To adjust the clock or ...

Page 7: ...s both heating and air conditioning systems are turned off AUTO will automatically select heat or cool based on room temperature demand Program On will activate the stored timer operation occupied unoccupied periods Select Mode Basic Operation Page 6 Press Press Press Press 70 69 Pm HEAT Mo I2 00 70 72 Pm COOL Mo I2 00 70 72 69 Pm COOL HEAT AUTO Mo I2 00 70 73 70 unoccupied ProgramOn Pm COOL HEAT ...

Page 8: ...mporarily With each successive push of the Override button the override timer will add 30 minutes until the maximum of 4 hours is reached Then the next press will zero out the override timer returning to unoccupied if there are no further button presses When in Override the Override icon and the Occupied 1 icon appear on the display The time of day clock alternates with the time remaining in overr...

Page 9: ...riod programming Continued Select the maximum of occupied periods to be used on any one day Typically 1 1 2 or 3 Adjust the cooling setpoint for occupied 1 Adjust the cooling setpoint for unoccupied periods Adjust the heating setpoint for occupied 1 35 99 35 99 35 99 MODE MODE MODE MODE MODE occupied 1 74 occupied COOL 1 74 72 occupied COOL HEAT 1 85 unoccupied COOL ...

Page 10: ...occupied periods 35 99 Select the day for Occupied 1 Adjust the stop time for occupied 1 Select Occupied 1 to run on this day On or not to run this day Off Adjust the start time for occupied 1 M S Off On MODE MODE MODE MODE 55 unoccupied HEAT occupied Mo 1 occupied Am Start Mo 1 7 00 occupied Pm Stop Mo 1 6 00 occupied ON Mo 1 ...

Page 11: ...mode will copy the previous day s program and then will ask the same copy question again If yes is selected each time this routine will repeat until Saturday is copied to Sunday After Saturday is copied to Sunday the copy command is unavailable The copy command becomes available after the maximum of occupied periods are programed in a day This example uses 1 as the maximum occupied periods ever pr...

Page 12: ...ming steps are skipped Heat Cool setpoints for Occupied 1 are the same for every day of the week Heat Cool setpoints for Occupied 2 3 can be adjusted differently for each day of the week if desired If the start time is set later in the day than the stop time the program will run from the start time to midnight and from midnight to the stop time on the same day For example 9 00pm start 8 00am stop ...

Page 13: ...ight corner of the display for easy reference Tip To change hours quickly press and hold the override button in and press the up or down buttons OVERRIDE MODE MODE MODE MODE MODE I Am Setup I2 00 2 Setup Mo Adjust the number of hours the blower will run before the Service Filter icon appears on the display 0 off Reset the Service Filter counter to 0 to remove the icon from the display 0 1950 Press...

Page 14: ...our limit d cycles per hour limit defeated d1 d defeat 5 min Compressor lockout Adjust the deadband from 1 6 degrees 0 6 d d1 2 6 81f MODE MODE MODE MODE MODE 2 6 Setup 88 2 7 COOL HEAT Setup 6 8 Cy Setup Select fan operation Fan On or Fan Auto Fan On Fan Auto Fan 5 AUTO Setup Adjust the preoccupancy fan purge timer 0 3 hours 0 00 off Pu 9 Setup 0 00 ...

Page 15: ...times 0 off Each 30 second delay 0 99 On Off MODE MODE MODE MODE L I I0 ON Setup 0 I I Start Setup Sof Select thermostat operation in degrees Fahrenheit or Centigrade C F F I2 Setup Yes No Select the sensor type Yes Outside or Duct sensor No Automatic Detection of Remote Sensor To view Outside or Duct temperature press and hold Mode 2 seconds min The thermostat will not control to Outside or Duct ...

Page 16: ...ts setpoint changes Adjust the maximum allowable heat setpoint when security is in effect Step 15 only appears if step 14 is not 0 35 99 Continued MODE MODE MODE O I4 Locked Setup Sec 80 I5 HEAT Locked Setup hi Adjust the minimum allowable cool setpoint when security is in effect Step 16 only appears if step 14 is not 0 35 99 65 I6 COOL Locked Setup lo ...

Page 17: ...uto 6 7 8 9 10 11 12 13 Reset Service Filter icon Service Filter run time set 0 1950 500 Deadband or Temperature swing 1 6 2 Forced minimum difference heat cool 0 6 2 Cycles per hour d d1 2 6 6 Fan Purge timer 0 00 3 00 0 00 Thermoglow backlight Off On On Soft Start 0 99 0 Fahrenheit or Centigrade F C F Outside Duct Sensor Yes No No Advanced Setup Table 14 Security Levels 0 3 0 15 Maximum allowabl...

Page 18: ...ol setpoints will not be allowed to come any closer to each other than the value set in Advanced Setup step 7 on page 13 This minimum difference is enforced during Auto changeover operation and Program On ENERGY SAVING SMART FAN If Fan On is selected page 13 step 5 the fan will run continuously at all times except in Off and will only run if there is a heating or cooling demand in Unoccupied perio...

Page 19: ...f EMERGENCY HEAT To turn on Emergency Heat press in the Override button While holding the Override button press the Up button for 2 seconds The Cool setpoint display will read EH During Emergency Heat the thermostat will turn on the fan and the 2nd stage of heat when there is a demand for heat locking out the 1st stage compressor Exiting Emergency Heat is the same as entering During Emergency Heat...

Page 20: ...ctivated device to force 1 or more Occupied 1 For the Dry Contact to work must be in Program On Set Occupied 1 days so the Contact closure will be in is forced into Occupied 1 closure the icon Occupied 1 will blink to device or a thermostats into the thermostat to Off for all 7 control When the thermostat via the Dry Contact Press all 3 for Keypad Lockout To unlock the buttons again press and hold...

Page 21: ...s to select the number of days the thermostat will be in mode 0 Off To exit Holiday setup the Mode button Holiday press The thermostat will enter the Holiday mode when the clock crosses midnight During Holiday mode Unoccupied setpoints are enforced The Override button is active during Holiday mode It will override to Occupied 1 settings up to 4 hours then return to Holiday mode The Dry Contact Swi...

Page 22: ... adjustable range is unhampered When adjusting any Auto mode including programming Occupied and Unoccupied periods the thermostat will not allow the Heat setpoint to get closer to the Cool setpoint than the value programmed as the minimum difference in step 7 page 13 When entering the Auto mode from Cool the Heat and Cool setpoints will remain spread apart by the amount that they were adjusted pri...

Page 23: ... to either 2 00 or 4 00 Subsequent button presses will not wraparound as the Override button on the thermostat does so the 2nd or button press will set the runtime to 4 00 The feature has no effect on the external Override The wired Remote Sensor is connected to the up to 500 of 20 ga or 300 of 18 ga See the Remote Sensor instructions for further details greater Locked button thermostat with therm...

Page 24: ...HER PERSON WHATSOEVER ALL WORK UNDER THE TERMS OF THIS WARRANTY SHALL BE PERFORMED DURING NORMAL WORKING HOURS AL REPLACEMENT PARTS WHETHER NEW OR REMANUFACTURED ASSUME AS THEIR WARRANTY PERIOD ONLY THE REMAINING TIME PERIOD OF THIS WARRANTY THE MANUFACTURER WILL NOT BE RESPONSIBLE FOR 1 Normal maintenance as outlined in the installation and servicing instructions or owners manual including filter...

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