White Rodgers 1F78-144 Non Programmable Thermostat Instruction Manual

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CONTENTS  

Preparations .................................................. 1  

Thermostat Details ........................................ 1  

Removing Old Thermostat............................. 1  

Mounting and Wiring...................................... 2  

Check Thermostat Operation......................... 3  

Specifications ................................................ 5  

Troubleshooting ............................................. 5  

Installation Instructions for  

Heating & Air Conditioning  

1F78  

Non-Programmable Thermostat  

YOUR THERMOSTAT REPLACES  

Typical System Compatibility Chart  

PREPARATIONS  

1

Assemble tools required below.  

1F78  

Standard Heat Only Two Wire Gas or Oil Fired Systems (24 volt)  

Electronic Ignition Heat Only Two Wire Systems (24 volt)  

Electronic Ignition Heat Only Gas or Oil Fired Systems (24 volt)  

Standard Heat/Cool Systems (24 volt)  

Ye s  

Ye s  

Ye s  

Ye s  

Ye s  

Ye s  

Ye s  

Ye s  

Ye s  

No  

FLAT BLADE SCREWDRIVER  

Heat/Cool Systems Electric Heat (24 volt)  

Heat Only Electric Heat Systems (24 volt)  

Cool Only Systems (24 volt)  

HAND OR POWER  

DRILL WITH 3/16 INCH  

DRILL BIT, IF NEEDED  

Heat Pump Systems (No Aux or Emergency Heat)  

Hot Water Zone Heat Only (Two Wire) Systems  

Hot Water Zone Heat Only (Three Wire) Systems  

Line Voltage Heating or Baseboard 110/240 Volt Systems  

Millivolt Systems Floor or Wall Furnaces  

WIRE CUTTER/STRIPPER  

No  

Failure to follow and read all instructions carefully  

before installing or operating this control could cause  

personal injury and/or property damage  

Ye s  

Ye s  

No  

12 VDC Mobile Home Application  

Multistage Systems  

Systems Exceding 30VAC, 1.5 Amp  

No  

REMOVING OLD THERMOSTAT  

THERMOSTAT DETAILS  

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2

Mounting  

hole  

CAUTION  

!

To prevent electrical shock and/or equipment damage,  

disconnect electrical power to the system at the main fuse  

or circuit breaker until installation is complete.  

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+

+

Before removing wires from old thermostat’s switching subbase,  

label each wire with the terminal designation it was removed  

from.  

W

RH  

B

RC  

W904  

Clip for  

Celsius  

Display  

1. Remove Old Thermostat: A standard heat/cool thermostat  

consists of three basic parts:  

W904  

G

O

Y

a. The cover, which may be either a snap-on or hinge type.  

b. The base, which is removed by loosening all captive screws.  

W905  

c. The switching subbase, which is removed by unscrewing  

the mounting screws that hold it on the wall or adaptor plate.  

ELEC GAS  

2. Shut off electricity at the main fuse box until installation is  

complete. Ensure that electrical power is disconnected.  

Mounting  

hole  

W905 Clip  

for Hydronic  

System  

3. Remove the front cover of the old thermostat. With wires still  

attached, remove wall plate from the wall. If the old thermostat  

has a wall mounting plate, remove the thermostat and the wall  

mounting plate as an assembly.  

Electric/Gas  

Switch  

NOTE: Earlier models refer to 37-7006 for jumper locations.  

4. Identify each wire attached to the old thermostat using the  

labels enclosed with the new thermostat.  

Figure 1.Thermostat  

5. Disconnect the wires from the old thermostat one at a time. DO  

NOT LET WIRES FALL BACK INTO THE WALL.  

6. Install new thermostat using the following procedures.  

PART NO. 37-6615C  

Replaces 37-6615B  

1028  

www.white-rodgers.com  

www.emersonclimate.com  

https://manual-hub.com/  

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General	Details
Name	White Rodgers 1F78-144 Non Programmable Thermostat Instruction Manual
Make	WHITE RODGERS
Language	English
Filetype	PDF (Download)
File size	0.42 MB

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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• WHITE RODGERS

White Rodgers 1F78-144 Non Programmable Thermostat Instruction Manual Overview

Summary of Contents

• Page 1: Preparations Assemble tools required below. Failure to follow and read all instructions carefully before installing or operating this control could cause personal injury and/or property damage. Removing Old Thermostat To prevent electrical shock and/or equipment damage, disconnect electrical power to the system at the main fuse or circuit breaker until installation is complete. Before removing wires from old thermostat’s switching subbase, label each wire with the terminal designation it was removed from. A standard heat/cool thermostat consists of three basic parts: the cover, the base, and the switching subbase. Shut off electricity at the main fuse box until installation is complete. Ensure that electrical power is disconnected. Identify each wire attached to the old thermostat using the labels enclosed with the new thermostat. Disconnect the wires from the old thermostat one at a time. Do not let wires fall back into the wall. Install new thermostat using the following procedures.
• Page 2: Caution: Take care when securing and routing wires to avoid shorting adjacent terminals or the rear of the thermostat. Removing old thermostat: This product does not contain mercury, but may replace a unit that does. Terminal cross reference chart: Includes designations for new thermostats and other manufacturers. Mounting and wiring: Ensure the factory-installed jumper wire between RH and RC terminals remains in place. Warning: Do not use on circuits exceeding specified voltage to prevent damage and hazards. Attach thermostat base to wall: Remove packing material and gently pull the cover straight off the base. Electric heat or single-stage heat pump systems: The thermostat is configured to operate a heat/cool, fossil fuel forced air system. Battery location: This thermostat requires 2 “AAA” alkaline batteries to operate. Hydronic heating systems: The thermostat must be set to operate properly with hot water or steam systems. Factory default setting: The thermostat cycles the system just under 1°F, with adjustments available for hydronic systems.
• Page 3: Mounting and wiring Typical wiring diagram for heat only, 3-wire, single transformer systems Typical wiring diagram for heat/cool, 5-wire, two-transformer systems Typical wiring diagram for cool only, 3-wire, single transformer systems Typical wiring diagram for heat pump with reversing valve energized in COOL Typical wiring diagram for heat pump with reversing valve energized in HEAT Check thermostat operation This thermostat has a time delay between cooling cycles to allow the head pressure in the compressor to stabilize. To prevent static discharge problems, touch side of thermostat to release static build-up before touching any keys. If at any time during testing your system does not operate properly, contact a qualified service person.
• Page 4: Check thermostat operation Before you begin using your thermostat, you should be familiar with its features and with the display and the location and operation of the thermostat buttons. Your thermostat consists of two parts: the thermostat cover and the base. To remove the cover, gently pull it straight out from the base. To replace the cover, line up the cover with the base and press gently until the cover snaps onto the base. The thermostat buttons and switches include temperature setting arrows, a fan switch, and a system switch. The display shows the current temperature and the currently set temperature. You can enter both your heating and cooling setpoints at the same time. Your new thermostat has been accurately set in the factory, but you may adjust the temperature display to match your old thermostat. The factory default setting is Fahrenheit, but it can be altered to Celsius. The display backlight improves display contrast in low lighting conditions.
• Page 5: SPECIFICATIONS Electrical Rating: 0 to 30 VAC 50/60 Hz or D.C. Setpoint Temperature Range: 45°F to 90°F (7°C to 32°C) Operating Ambient Temperature Range: 32°F to 105°F (0°C to 41°C) Operating Humidity Range: 0 to 90% RH (non-condensing) Shipping Temperature Range: -40°F to 150°F (-40°C to 66°C) TROUBLESHOOTING If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation, you can reset the thermostat. For best results, replace batteries once a year with new premium brand alkaline batteries. No Heat/No Cool/No Fan: Common problems include blown fuse or tripped circuit breaker. Pilot light not lit: Re-light pilot. Furnace Lock-Out Condition: Heat may also be intermittent; contact the furnace manufacturer or local service person for assistance.
• Page 6: Troubleshooting Heat, cool or fan runs constantly. Possible causes include a short in wiring, thermostat, or heat/cool/fan system. Check wire connections and reset the thermostat. If the issue persists, consult the manufacturer or a service person. Furnace cycles too fast or too slow. Digital thermostats may cycle faster than older models. To increase cycle time, clip Jumper W-905. If issues continue, contact a local service person. Cooling cycles too fast or too slow. The cycle rate for cooling is fixed and cannot be adjusted. Consult a local service person for suggestions. Thermostat setting and thermostat thermometer disagree. The thermometer can be adjusted +/- 3 degrees. Blank display and/or keypad not responding. Possible causes include a voltage spike or the need for a battery change. Replace batteries and check the heat/cool system for proper operation.
• Page 7: Solución de problemas El modo de calor, frío o ventilador funciona de manera constante. Verifique todas las conexiones de los cables para asegurarse de que no estén en cortocircuito o tocándose entre sí. Intente reajustar el termostato como se describe más arriba. Si la condición persiste, el fabricante de su sistema o el personal técnico podrá indicarle cómo probar si el sistema de frío/calor está funcionando correctamente. Los ciclos de la caldera son demasiado cortos o demasiado largos. Normalmente, los termostatos digitales proporcionan un control preciso de la temperatura. Si desea aumentar la duración del ciclo, corte el cable de puente W-905. La duración del ciclo de refrigeración es fija y no se puede ajustar. El valor del termómetro del termostato requiere ajuste. La pantalla está en blanco y/o el teclado no responde.
• Page 8: Especificaciones Datos eléctricos Características eléctricas: 0 a 30 VCA 50/60 hz. o D.C. Rango de temperaturas de referencia: 45°F a 90°F (7°C a 32°C) Temperatura ambiente operativa: 32°F a 105°F (0ºC a 41ºC) Humedad operativa: 0 a 90% HR (sin condensación) Temperatura de transporte: -40°F a 150°F (-40ºC a 66ºC) Solución de problemas Si un pico de voltaje o una descarga estática pone en blanco la pantalla, puede reajustar el termostato. Para obtener resultados óptimos, cambie las pilas una vez al año por pilas alcalinas nuevas. El sistema no calienta/enfría: verifique el fusible, el interruptor de alimentación y las conexiones. Condición de bloqueo de la caldera puede causar calefacción intermitente. Si el termostato no hace un chasquido después de reajustarlo, póngase en contacto con el servicio técnico.
• Page 9: Verifique el funcionamiento del termostato. Antes de usar su termostato, familiarícese con sus funciones y la ubicación de los diferentes botones. Su termostato consta de dos partes: la cubierta del termostato y la base. Para retirar la cubierta, tire suavemente de ella para separarla de la base. Los botones e interruptores del termostato incluyen opciones para ajustar la temperatura y el sistema de calefacción/refrigeración. La pantalla muestra la temperatura actual y la temperatura programada. Puede ajustar la pantalla de temperatura de su termostato dentro de un rango de 3°F. La luz de fondo mejora el contraste de la pantalla en condiciones de poca luz. El ajuste predeterminado de fábrica es en grados Fahrenheit, pero se puede cambiar a grados Celsius. Si las pilas tienen poca carga, la pantalla mostrará un mensaje indicando que deben cambiarse.
• Page 10: Montaje y conexiones Sistema de termostato Diagrama de conexiones típico para sistemas de solo calor de un solo transformador y 3 cables Diagrama de conexiones típico para sistemas de calor/frío de dos transformadores y 5 cables Nota: Para solo calor con 2 cables, conectar a RH y W Diagrama de conexiones típico para sistemas de solo frío de un solo transformador y 3 cables Nota: El cable de puente rojo debe conectarse entre las terminales RH y RC del termostato Este termostato tiene una demora de tiempo entre los ciclos de refrigeración Verifique el funcionamiento del termostato Para evitar problemas de descarga estática, toque la parte lateral del termostato antes de pulsar cualquier tecla ¡Precaución! Para evitar daños al compresor, si la temperatura externa está por debajo de los 50°F, NO utilice el sistema de refrigeración.
• Page 11: ¡PRECAUCIÓN! Cómo retirar el termostato viejo. Al fijar y pasar los cables, tenga cuidado de que no hagan cortocircuito con las terminales adyacentes o en la parte trasera del termostato. Este producto no contiene mercurio. No obstante, puede reemplazar una unidad que sí contiene mercurio. No abra las celdas de mercurio. En el caso de que una celda se dañe, no toque el mercurio derramado. El mercurio no debe desecharse con los residuos domésticos. La instalación del termostato y de todos los componentes del sistema debe cumplir con las reglamentaciones del código NEC para circuitos de clase II. Este termostato está configurado de fábrica para operar un sistema de aire forzado con combustible fósil. Si su sistema es un sistema eléctrico o de bomba de calor que requiere que el termostato encienda el ventilador en una llamada de calor, ubique el interruptor GAS/ELECTRIC. Este termostato requiere 2 pilas alcalinas “AAA” para funcionar. La configuración predeterminada de fábrica es de calor por aire forzado.
• Page 12: Preparación Procúrese las herramientas indicadas a continuación. Detalles del termostato ¡Precaución! Desconecte la alimentación eléctrica al sistema en el disyuntor o caja de fusibles principal hasta que la instalación esté terminada. Cómo retirar el termostato viejo Retire el termostato viejo: un termostato de calor/frío consta de tres partes básicas. Apague la electricidad en la caja de fusibles principal hasta que haya finalizado la instalación. Identifique cada uno de los cables conectados al termostato viejo usando las etiquetas incluidas con el nuevo termostato. Desconecte los cables del termostato viejo de a uno a la vez. No deje que los cables vuelvan a introducirse en la pared. Instale el termostato nuevo siguiendo el procedimiento indicado.