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Fig. 4—Two-Stage Furnace

with Single-Speed Heat Pump

A98562

O/W2

Y1/W2

W/W1

DUAL FUEL

THERMOSTAT

TWO-STAGE

FURNACE

SINGLE-SPEED

HEAT PUMP

W/W1

Y/Y2

HUM

HEAT STAGE 2

(FURNACE LO)

HEAT STAGE 3

(FURNACE HI)

HEAT/COOL

STAGE 1

(COMPRESSOR)

RVS COOLING

FAN

24 VAC HOT

24 VAC COM

N/A

RVS SENSING

OUTDOOR

SENSOR

CONNECTION

Y/Y2

OUTDOOR

SENSOR

See notes 1, 2, 3, 4, 7, and 9

SUGGESTED DIP

SWITCH SETTINGS

OFF OFF OFF OFF

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Fig. 2—Single-Stage Furnace

with Single-Speed Heat Pump

A98443

O/W2

Y1/W2

W/W1

DUAL FUEL

THERMOSTAT

SINGLE-STAGE

FURNACE

SINGLE-SPEED

HEAT PUMP

HUM

HEAT STAGE 2

(FURNACE)

N/A

HEAT/COOL

STAGE 1

(COMPRESSOR)

RVS COOLING

FAN

24 VAC HOT

24 VAC COM

N/A

RVS SENSING

OUTDOOR

SENSOR

CONNECTION

Y/Y2

OUTDOOR

SENSOR

See notes 1, 2, 3, 4, and 9

SUGGESTED DIP

SWITCH SETTINGS

OFF OFF OFF OFF

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Fig. 5—Two-Stage Furnace

with 2-Speed Heat Pump

A98563

O/W2

Y1/W2

W/W1

DUAL FUEL

THERMOSTAT

TWO-STAGE

FURNACE

TWO-SPEED

HEAT PUMP

W/W1

Y/Y2

HUM

HEAT STAGE 3

(FURNACE)

HEAT/COOL

STAGE 2

(COMPRESSOR HI)

HEAT/COOL

STAGE 1

(COMPRESSOR LO)

RVS COOLING

FAN

24 VAC HOT

24 VAC COM

N/A

RVS SENSING

OUTDOOR

SENSOR

CONNECTION

Y/Y2

OUTDOOR

SENSOR

See notes 1, 2, 3, 4, 5, 6, 8, and 10

SUGGESTED DIP

SWITCH SETTINGS

OFF OFF OFF ON

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Fig. 3—Single-Stage Furnace

with 2-Speed Heat Pump

A98444

O/W2

Y1/W2

W/W1

DUAL FUEL

THERMOSTAT

SINGLE-STAGE

FURNACE

TWO-SPEED

HEAT PUMP

HUM

HEAT STAGE 3

(FURNACE)

HEAT/COOL

STAGE 2

(COMPRESSOR HI)

HEAT/COOL

STAGE 1

(COMPRESSOR LO)

RVS COOLING

FAN

24 VAC HOT

24 VAC COM

N/A

RVS SENSING

OUTDOOR

SENSOR

CONNECTION

Y/Y2

OUTDOOR

SENSOR

See notes 1, 2, 3, 4, 5, 6, and 10

SUGGESTED DIP

SWITCH SETTINGS

OFF OFF OFF ON

Содержание Programmable Dual Fuel Thermostats

Страница 1: ...ettings per 24 hour period for 7 independent days may be programmed Batteries are not required during a power interruption the internal memory stores programs for an unlimited time and the clock continues to run for at least 72 hrs SYSTEM CONSIDERATIONS The dual fuel thermostat is designed to be used only in HP furnace installations It replaces a conventional 2 stage HP thermostat and a HP furnace...

Страница 2: ...ing The temperature range is 5 55 F When the outdoor temperature is above the auxiliary heat lockout setting the heat pump will become the primary source and the gas furnace cannot come on except in defrost or emergency heat mode The auxiliary heat lockout setting can never be set below the balance point setting and likewise the balance point can never be set above the auxiliary heat lockout setti...

Страница 3: ...lied with the unit and must be installed Plan installation so that 2 wires can be run from the thermostat to an outdoor location preferably on the north side of the house or refer to Installation Instructions included with the outdoor temperature sensor for simplified connection Sensor can be mounted to outdoor unit and existing control wires may be used for its connection Details are provided in ...

Страница 4: ...s See Fig 2 through 9 Both R and C must be connected for proper thermostat operation Improper wiring or installation may damage the thermostat Check to make sure wiring is correct before proceeding with installation or turning on unit 9 Push any excess wire into wall and against mounting base Seal hole in wall to prevent air leaks Leaks can affect operation 10 Snap hinge back together 11 Close the...

Страница 5: ...gain to flash upper small display for selection of another option or press END to exit the configuration mode Option 8 Auxiliary Heat Lockout Setting This option allows selection of an outdoor temperature of 5 through 55 F in 5 steps or equivalent values in C or OF off Furnace is prevented from operating for outdoor temperatures above the selected temperature If OF off is selected furnace operatio...

Страница 6: ...ater due to a staging timer which requires 15 minutes of low before high comes on The UP and FAN buttons cannot be used to defeat this timer This timer can be defeated by reducing the set point to more than 5 below room temperature bringing on a high speed demand within 5 seconds Remember 2 speed units have a 1 minute off time between lo and high speed so the thermostat s demand will not show imme...

Страница 7: ... The FAN button may be used to select between AUTO fan on only with equipment and ON fan on continuously fan modes Step 7 Checklist 1 Put away tools and instruments and clean up debris 2 Review Homeowner s Guide with owner 3 Leave literature packet with owner 4 Fill out and return survey card Table 4 Dual Fuel Thermostat Quick Reference THERMOSTAT OUTPUTS Outdoor Unit Set DIP Switch D 24v Hot Comm...

Страница 8: ... notes 1 2 3 4 and 9 SUGGESTED DIP SWITCH SETTINGS ON A B C D OFF OFF OFF OFF Fig 5 Two Stage Furnace with 2 Speed Heat Pump A98563 O W2 Y1 W2 W W1 G R R G DUAL FUEL THERMOSTAT TWO STAGE FURNACE TWO SPEED HEAT PUMP W W1 C Y2 W2 O Y1 W3 C B L S1 S2 R Y Y2 C HUM W2 HEAT STAGE 3 FURNACE HEAT COOL STAGE 2 COMPRESSOR HI HEAT COOL STAGE 1 COMPRESSOR LO RVS COOLING FAN 24 VAC HOT 24 VAC COM N A RVS SENSI...

Страница 9: ...GS ON A B C D OFF OFF OFF OFF FURNACE BOARD O Y1 VARIABLE SPEED 80 NON CONDENSING FURNACE Fig 9 Variable Speed Furnace with 2 Speed Heat Pump A98446 O W2 Y1 W2 W W1 G R R G DUAL FUEL THERMOSTAT VARIABLE SPEED CONDENSING FURNACE TWO SPEED HEAT PUMP W W1 C Y2 W2 O Y1 W3 C B L S1 S2 R C HUM W2 HEAT STAGE 3 FURNACE HEAT COOL STAGE 2 COMPRESSOR HI HEAT COOL STAGE 1 COMPRESSOR LO RVS COOLING FAN 24 VAC ...

Страница 10: ...ot select the FURNACE INTERFACE or BALANCE POINT option on the 2 speed heat pump control board This is controlled internally by the Dual Fuel Thermostat 7 As an option lock the furnace into low fire operation and let Y1 W2 control high fire operation Refer to indoor equipment Installation Instructions for proper setup 8 Furnace must control its own second stage heat operation via furnace control a...

Страница 11: ...imum brownout level all outputs are turned off and the display indicates E2 If the AC line voltage disappears completely the display will immediately go blank E3 If thermostat cannot properly read outdoor temperature E3 will alternate with room temperature on the room temperature display and the outdoor temperature will read 2 dashes E6 If defrost timer continues for longer than 15 minutes E6 will...

Страница 12: ...ctory default 2 3 Fahrenheit or Celsius F or C factory default F 4 7 N A 8 Auxiliary Heat Lockout Off or 5 55 F factory default Off 9 10 N A 11 Balance Point Temperature Off or 5 55 F factory default 40 12 N A 13 Room Temperature Offset 5 to 5 factory default 0 14 N A 15 Enable Auto Mode Off or On factory default On Mon Tue Wed Thu Fri Sat Sun TIME HEAT COOL TIME HEAT COOL TIME HEAT COOL TIME HEAT...

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Содержание Programmable Dual Fuel Thermostats

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Carrier Programmable Dual Fuel Thermostats, Инструкция по установке, запуску и эксплуатации

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Содержание Programmable Dual Fuel Thermostats

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