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OWNER'S MANUAL

P/N 50QE900-NPWS

Commercial

Digital Thermostat

Dual Setpoint
Large, Easy To Read Display
Thermoglow Backlight
No Batteries Required
Auto Changeover
Adjustable Deadband
B or O Terminal
Locking Keypad
Locking Cover with
Tamper proof Screws
F or C

Commercial Systems & Services Carrier Corporation 3/00

Carrier

A Q U A Z O N E

Designed for Commercial Water Source Heat Pumps

Содержание Aquazone 50QE900-NPWS

Страница 1: ...play Thermoglow Backlight No Batteries Required Auto Changeover Adjustable Deadband B or O Terminal Locking Keypad Locking Cover with Tamper proof Screws F or C Commercial Systems Services Carrier Corporation 3 00 Carrier o 7374 Carrier A Q U A Z O N E Designed for Commercial Water Source Heat Pumps ...

Страница 2: ...UT 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 NPWS 2 3 5 7 10 15 Commercial Systems Services Carrier Corporation 3 00 ...

Страница 3: ...Front Panel Page 2 Liquid Crystal Display with Thermoglow Up Down Buttons Mode Button Fan Button Heat or Cool Indicator Heat Red Cool Green 1 2 3 4 5 2 3 4 5 1 88 OFFON AUTO Setup o 8888 Carrier ...

Страница 4: ...nditioning mode AUTO indicates the system will automatically changeover between heat and cool modes as the temperature varies OFF indicates the entire system is turned off Room Temperature Display Indicates the current room temperature Desired Set Temperature Indicates desired room temperature s Page 6 Display Page 3 1 1 1 2 3 3 5 6 4 1 ...

Страница 5: ...ation Indication indicates constant continuous fan operation When Fan On is not lit indicates the fan will only operate when necessary to heat or to cool Page 6 Locked Indication appears after the right combination of buttons are pressed rendering the buttons inoperative Page 12 Display Page 4 ...

Страница 6: ...temperature the room has to reach before the air conditioner will turn on to cool the room OFF indicates both heating and air conditioning systems are turned off AUTO will automatically select heat or cool based on room temperature demand Select Mode Basic Operation Page 5 Press MODE Press MODE Press MODE o 7374 72 o 73 72 AUTO o 73 74 OFF o 73 ...

Страница 7: ...nd cool set temperatures simultaneously Pressing the up down buttons in Heat or Cool modes will adjust only the heat or cool set temperature Select Desired Temperature Page 6 Basic Operation o 7374 72 AUTO o 73 74 Fan Operation indicates constant fan operation This feature is active even if the thermostat is set to Off Press FAN ...

Страница 8: ...step is located at the top right corner of the display for easy reference FAN MODE MODE MODE MODE Adjust the deadband from 1 6 degrees 2 I Setup 88 Adjust the minimum difference between cooling heating setpoints 0 6 81f 2 2 COOL HEAT Setup Select the cycles per hour limit d cycles per hour limit defeated d1 d defeat 5 min Compressor lockout d d1 2 6 6 3 Cy Setup ...

Страница 9: ...d Setup Page 8 Press MODE Select the display back light always On or Off after 8 seconds On Off Press MODE Setup L I 4 ON Continued Select thermostat operation in degrees Fahrenheit or Centigrade C F Setup F 5 ...

Страница 10: ... On Fahrenheit or Centigrade F C F Reversing Valve polarity O B O Advanced Setup Table Press the Mode button While holding the Mode press the Fan button for 2 seconds to leave the Setup screens If no buttons are pressed the display will leave the setup screens after 30 seconds FAN MODE Select the reversing valve polarity for Heat Pump O or B Step 2 only appears if heat pump is on in step 1 B O 0 S...

Страница 11: ...oint plus the deadband plus 2 degrees Heat Setpoint Cool Setpoint Dead Band Dead Band 2 degrees 2 degrees 1st Stage turn on 2nd Stage turn on 1st Stage turn on 2nd Stage turn on Heating Cooling MINIMUM HEAT COOL SETPOINT DIFFERENCE The Heat and Cool setpoints will not be allowed to come any closer to each other than the value set in Advanced Setup step 2 on page 7 This minimum difference is enforc...

Страница 12: ...n 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 only OFF and HEAT are available To turn on Emergency Heat press in the Fan button While holding the Up button for 2 seconds will read EH Press for Emergency Heat FAN 73 eh 74 ...

Страница 13: ...ess and hold in the Mode button While holding the Mode button in press the Up and Down buttons in together The Locked icon will appear on the display Press all 3 for Keypad Lockout To unlock the buttons again press and hold the Mode button While holding the Mode button in press the Up and Down buttons in together The Locked icon will disappear from the display MODE o 7272 ...

Страница 14: ...setpoints will remain spread apart by the amount that they were adjusted prior to entering Auto For example If the Cool setpoint was set to 80 while in the Cool mode and the Heat setpoint was adjusted to 70 while in the Heat mode upon entering the Auto mode the Heat and Cool setpoints would be 80 and 70 Both setpoints would then move up and down together in this example spread by 10 degrees by pre...

Страница 15: ...n press the Down button for 2 sec All icons will appear Press and hold in the Fan button until Fd appears This resets all factory settings To calibrate room temperature press the Mode button once more At this point use the Up and Down buttons to calibrate room temperature if needed Press the Mode button to return to normal operation NOTE CAUTION ON PAGE 1 LOCKING COVER w Tamper Proof Screws Carrie...

Страница 16: ...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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