Carrier P374-1500 Owner'S Manual Download

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OWNER'S MANUAL

P/N P374-1500

Configurable for

Advanced Heat Pump or

Dual Fuel Operation

Programmable Thermostat

Can be configured for Dual Fuel operation (Heat Pump & Furnace).

7 Day Programmable
4 Time periods
Thermoglow Backlight
Advanced Heat Pump
Dual Fuel Configurable
Using Outdoor Sensor
Adjustable Times and
Deadbands Between
Stages
Adjustable Changeover
Balance Point

Replacement Component Division Carrier Corporation 6/99

HEAT

PUMP

DUAL

FUEL

3 HEAT - 2 COOL

TOTALINE

EAT

OOL

AUTO

6:03

Summary of Contents for P374-1500

Page 1: ...Heat Pump Furnace 7 Day Programmable 4 Time periods Thermoglow Backlight Advanced Heat Pump Dual Fuel Configurable Using Outdoor Sensor Adjustable Times and Deadbands Between Stages Adjustable Changeover Balance Point Replacement Component Division Carrier Corporation 6 99 HEAT PUMP DUAL FUEL 3 HEAT 2 COOL TOTALINE 67 70 HEAT COOL AUTO o o Am 6 03 68 Su ...

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 2 3 5 6 8 12 17 24 P N P374 1500 Replacement Components Division Carrier Corporation 6 99 ...

Page 3: ... 2 Backlit 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 VACATION SET CLOCK OUTSIDE ...

Page 4: ... indicates the stored program is enabled to run Page 8 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 1 1 1 2 3 4 4 7 6 8 10 11 12 9 88 88 HEAT COOL OFF AUTO Fan On Program Ser...

Page 5: ... Fan On is not lit indicates the fan will only operate when necessary to heat or to cool Page 7 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 15 Locked Indication Locked appears after the right combination of buttons are pressed rendering the buttons inoperative Page 22 St...

Page 6: ...urn to normal operation Quick Start Set the Clock and Go Page 5 This thermostat is preprogrammed from the factory to operate 1 2 or 3 Stage equipment without the need for further programming To optimize the installation of this thermostat follow the instructions in the Advanced Setup section 2 Setup S buttons To adjust the clock or Day use Press Setup Am 12 00 i SET CLOCK SET CLOCK MODE ...

Page 7: ...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 69 HEAT o Pm 12 00 70 M 72 COOL o Pm 12 00 70 M 69 72 HEAT COOL AUTO o o Pm 12 00 70 M OFF Pm 12 00 70 M 70 73 HEAT COOL ProgramOn o o Pm 12 00 7...

Page 8: ...neously Pressing the up 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 M 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 S Fan On Press FAN ...

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

Page 10: ...ening 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 M Start Pm 5 30 Evening M Day 75 COOL o Am I0 30 M Evening 75 COOL o Pm 5 30 M Day 73 75 HEAT COOL o o Am I0 30 M Press MODE Press MODE Press MODE Press MODE Press MODE ...

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

Page 12: ...then pressing 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 The copy command becomes available after programming the entire previous day If No is selected as in previous steps flashing prompts for input will appear for the 4 time periods for the next day Press MODE Press MODE ...

Page 13: ...sult in improper operation Setup steps 1 2 are found in the clock set section NOTE Each step is located at the top right corner of the display for easy reference B O page 17 page 21 page 17 Press MODE PROGRAM MODE Select Dual Fuel operation On or Advanced Heat Pump operation Off Adjust the Changeover or Balance Point for the outside sensor 4 5 OFF OFF Setup Setup bf eh On On Off Off 6 Setup 35 6p ...

Page 14: ...e 3rd stage 1 6 0 10 0 10 Adjust the minimum number of minutes stage 1 must be on before stage 2 turns on Adjust the minimum number of minutes stage 2 must be on before stage 3 turns on 0 60 0 60 I0 I I Setup Setup 0 02 0 02 7 8 9 Setup Setup Setup 86 I 86 2 86 3 8 8 8 8 2 2 2 2 3 Press MODE Press MODE Press MODE Press MODE Press MODE ...

Page 15: ...6 d d1 2 6 cy I3 Setup 6 I2 HEAT COOL Setup 2 81f Press MODE Press MODE Adjust the programmable fan timer 0 60 minutes 0 00 off Fan On Fan On Fan On I4 Setup Setup 0 00 Press MODE Press MODE Press MODE I5 I6 Am Pm ON OFF 7 00 9 00 Adjust the programmable fan start time step 15 appears only if step 14 is not 0 00 Adjust the programmable fan stop time step 16 appears only if step 14 is not 0 00 page...

Page 16: ...Filter icon appears on the display 0 off Reset the Service Filter counter to 0 to remove the icon from the display 0 1950 2 I ServiceFilter Setup 500 20 ServiceFilter Setup 0 I8 I9 Setup Setup HEAT COOL 0 0 Press MODE Press Press Press FAN FAN FAN Press MODE Press MODE Press MODE Press MODE Select the display back light always On or Off after 8 seconds I7 Setup On L I On Off Continued ...

Page 17: ...icon 21 Service Filter run time set 0 1950 500 22 Reversing Valve polarity O B O Deadband Temperature swing 1st Stage 1 6 2 8 Deadband Temperature swing 2nd Stage 0 10 2 9 Deadband Temperature swing 3rd Stage 0 10 2 10 Minutes Between Stages 1 2 0 60 2 11 Minutes Between Stages 2 3 0 60 2 Forced minimum difference heat cool 0 6 2 Cycles per hour d d1 2 6 6 0 00 0 60 0 00 15 Programmable Fan Start ...

Page 18: ...operation allows maximum flexibility when controlling multi stage heat pumps Turn on times between stages between deadbands are installer adjustable When used with an outdoor temperature sensor the 3rd stage is locked out unless the outdoor temperature is at or below the adjustable Changeover Balance Point If an outdoor temperature sensor is not installed the 3rd stage is locked out Note Adjusting...

Page 19: ... 2nd stage has been on meeting time required page 13 step 11 also adjustable from 0 60 minutes default 2 B the temperature from 2nd stage turn on plus the 3rd deadband this 3rd deadband is adjustable from 0 10 degrees the default is 2 and C the outside temperature is at or below the changeover balance point Advanced Setup Step 6 page 12 Heat Setpoint Cool Setpoint Deadband Deadband Deadband Deadba...

Page 20: ...Setting the times to the same setting in both steps 15 16 will allow Programmable Fan to operate 24 hours a day page 14 step 14 EMERGENCY HEAT Is a feature available to this thermostat To turn on Emergency Heat press in the Fan button While holding the Fan button press Up button for 2 seconds The Cool setpoint display will read EH During Emergency Heat the thermostat will turn on the fan and the 2...

Page 21: ...e 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 pressing the up or down buttons To move the Heat and Cool setpoints closer together enter the Cool or Heat mode by pressing the Mode button then adjust the setpoint s closer t...

Page 22: ...rature to the Changeover Balance Point Sensor when asked to This thermostat will temperature from the Outdoor Sensor to The Outdoor Sensor is available in a wired or wireless version The wired sensor can be connected to the thermostat with Unshielded See the Outdoor Sensor instructions for further details up to 500 of 20 ga or 300 of 18 ga thermostat wire ELECTRIC HEAT Selecting Electric Heat ON p...

Page 23: ...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 70 We VACATION MODE This feature forces the thermostat into Unoccupied for a preset duration up to 99 days The Vacation setup display is entered as foll...

Page 24: ...8 press the Mode go to step 29 Step 29 is the Cool Unoccupied setpoint Press the Up or Down buttons to adjust Press the Mode button again to go to step 30 Step 30 is the Heat Unoccupied setpoint Press Up or Down buttons to adjust Press the Vacation button to return to normal operation The thermostat will enter the Vacation mode when the clock crosses midnight During Vacation mode Unoccupied setpoi...

Page 25: ...s Copy Thu Fri No Yes S U N D A Y Morning Day Evening Night Copy Sat Sun No Yes Copy Wed Thu W E N E S D D A Y T U R H S D A Y Morning Morning Day Day Evening Evening Night Night No Yes DAY PERIOD HEAT START TIME COOL Copy Mon Tue M O N D A Y T U E S D A Y Morning Morning Day Day Evening Evening Night Night No Yes P N 88 194 Printed on recycled paper ...

Page 26: ...EALER OROTHERPERSON WHATSOEVER ALLWORKUNDERTHETERMSOFTHI SWARRANTYSHALLBEPERFORMEDDURI NG NORMALWORKI NGHOURS ALLREPLACEMENTPARTS WHETHERNEWOR REMANUFACTURED ASSUMEASTHEI RWARRANTYPERI ODONLYTHEREMAI NI NG TI MEPERI ODOFTHI SWARRANTY THECOMPANYWI LLNOTBERESPONSI BLEFOR 1 Nor mal mai nt enanceasout l i nedi nt hei nst al l at i onandser vi ci ngi nst r uct i onsor owner s manual i ncl udi ngf i l t...

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