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OWNER'S MANUAL

P/N P374-1000

Programmable

 

Digital Thermostat

1 For All

Meets Residential California Title 24

1 Day Programmable 
4 Time Periods per Day
Auto Changeover 
Large, Easy To Read Display
Thermoglow    Backlight
No Batteries Required

67

70

H

EAT

C

OOL

AUTO

o

o

Am

 6:03

68

Su

TOTALINE

TOTALINE

Use with most Air Conditioning & Heating Systems including: 1 Stage of 
Electric Cooling or up to 2 Stages of Gas Heating, Heat Pump, Electric or
Hydronic Heat. 

Replacement Components Division      Carrier Corporation 4/01

Summary of Contents for 1 For All P374-1000

Page 1: ...Auto Changeover Large Easy To Read Display Thermoglow Backlight No Batteries Required 67 70 HEAT COOL AUTO o o Am 6 03 68 Su TOTALINE TOTALINE Use with most Air Conditioning Heating Systems including 1 Stage of Electric Cooling or up to 2 Stages of Gas Heating Heat Pump Electric or Hydronic Heat Replacement Components Division Carrier Corporation 4 01 ...

Page 2: ... Periods 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 P374 1000 2 3 5 6 8 11 14 18 Replacement Components Division Carrier Corporation 4 01 ...

Page 3: ...it LCD Display Warmer or Button Cooler or Button Mode Button Heat or Cool Indicator Red Heat Green Cool 67 70 HEAT COOL AUTO o o Am 6 03 68 S SET CLOCK PROGRAM VACATION OUTSIDE FAN MODE Programmable Thermostat FAN PROGRAM BACKLIGHT SET CLOCK EMERGENCY HEAT TOTALINE ...

Page 4: ...e system is turned off PROGRAM ON indicates the stored program is enabled to run Page 6 Time Clock Indicates the current time of day This clock is also used to program the timer periods Page 8 Room Temperature Display Indicates the current room temperature Desired Set Temperature Indicates desired room temperature s Page 6 Display Page 3 1 1 1 1 2 3 4 4 6 5 7 8 9 88 88 HEAT COOL OFF AUTO Fan On Pr...

Page 5: ...tion Indication Fan On 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 7 Locked Indication Locked appears after the right combination of buttons are pressed rendering the buttons inoperative Page 16 Start Indication Start appears when programming timer functions Page 8 Display Page 4 ...

Page 6: ...hermostat is preprogrammed from the factory to operate 1 stage of cooling or 2 Stages of heating equipment without the need for further programming To optimize the installation of this thermostat follow the instructions in the Advanced Setup section The thermostat is not preprogrammed from the factory to operate electric heat or heat pump systems To control these systems follow the steps in the Ad...

Page 7: ...ates 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 Morning Day Evening Night Periods Select Mode Basic Operation Page 6 Press Press Press Press MODE MODE MODE MODE 69 HEAT o Pm 12 00 70 72 COOL o Pm 12 00 70 69 72 HEAT COOL AUTO o o Pm 12 00 70 OFF Pm 12 00 70...

Page 8: ...taneously Pressing the Up or Down buttons in Heat or Cool modes will adjust only the heat or cool set temperature Select Desired Temperature Fan Operation Page 7 Basic Operation 69 72 HEAT COOL AUTO o o Pm 12 00 70 Fan On indicates constant fan operation This feature is active even if the thermostat is set to Off 55 85 HEAT COOL o o Pm 12 00 65 Fan On Press FAN ...

Page 9: ... start time for Morning Adjust the heating setpoint for Morning Adjust the cooling setpoint for Morning 35 99 35 99 Start Am 7 30 Morning 74 COOL o Am 7 30 Morning 72 74 HEAT COOL o o Am 7 30 Morning Use the back cover Programming Worksheet to help with this section Press PROGRAM Press MODE Press MODE Press MODE ...

Page 10: ...or Evening Adjust the start time for Day Adjust the heating setpoint for Day Adjust the cooling setpoint for Day 35 99 35 99 35 99 Start Am I0 30 Day Start Pm 5 30 Evening Day 75 COOL o Am I0 30 Evening 75 COOL o Pm 5 30 Day 73 75 HEAT COOL o o Am I0 30 Press MODE Press MODE Press MODE Press MODE Press MODE ...

Page 11: ... heating setpoint for Evening Adjust the cooling setpoint for Night Adjust the start time for Night Start Pm I I 30 Night Night 78 COOL o Pm I I 30 Pm 5 30 Evening 73 75 HEAT COOL o o Night 70 78 HEAT COOL o o Am I I 30 35 99 35 99 35 99 Press MODE Press MODE Press MODE Press PROGRAM ...

Page 12: ... Off On Off Adjust the time of day clock Tip To change hours quickly press and hold the fan button in and then press the up or down buttons Press Press Press Continued MODE MODE MODE Setup AM I2 00 I OFF Setup HP 2 Setup O 3 Select the reversing valve polarity for Heat Pump O or B Step 3 only appears if heat pump is on in step 2 B O OFF Setup EH 4 Select Electric Heat On or Off Step 4 only appears...

Page 13: ...etpoints 0 6 Select the cycles per hour limit d cycles per hour limit defeated d1 d defeat 5 min Compressor lockout d d1 2 6 Press Press Press Press MODE MODE MODE PROGRAM Setup Cy 6 7 Setup 8 2 8 5 COOL Setup HEAT 8If 2 6 Setup F 9 Select thermostat operation in degrees Fahrenheit or Centigrade F C Page 12 ...

Page 14: ...our 12 00 Am 2 Heat Pump Off On Off 3 4 Electric Heat Off On Off 6 8 9 Reversing Valve polarity O B O Deadband 1 6 2 7 Forced minimum difference heat cool 0 6 2 Cycles per hour d d1 2 6 6 Fahrenheit or Centigrade F C F Advanced Setup Table Accessed and configured through the Set Clock button ...

Page 15: ...oint Cool Setpoint Dead Band Dead Band 2 degrees 1st Stage turn on 2nd Stage turn on 1st 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 6 on page 12 This minimum difference is enforced during Auto changeover operation and Program On ELECTRIC HEAT Selecting...

Page 16: ...ng Emergency Heat only OFF and HEAT are available the Press for Emergency Heat FAN FACTORY DEFAULTS If for any reason it is desirable to return all stored settings back to the factory default settings press the Mode button While holding the Mode button in press the Fan button for 5 sec All icons will appear Press and hold in the Fan button until Fd appears This resets all factory settings To calib...

Page 17: ...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 55 85 HEAT COOL Locked o o Pm 12 00 65 ...

Page 18: ...Heat and Cool 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 ...

Page 19: ...ORK 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 cleaning and or replacemen...

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