White Rodgers 1F78 Installation Instructions Manual

White Rodgers 1F78 Installation Instructions Manual

5/2 day programmable thermostat
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Installation Instructions for
Heating & Air Conditioning
5/2 Day Programmable Thermostat
YOUR THERMOSTAT REPLACES
Typical System Compatibility Chart
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)
Heat/Cool Systems Electric Heat (24 volt)
Heat Only Electric Heat Systems (24 volt)
Cool Only Systems (24 volt)
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
12 VDC Mobile Home Application
Multistage Systems
Systems Exceding 30VAC, 1.5 Amp
2
THERMOSTAT DETAILS
-
W903
Clip to
Disable
EMR
Feature
Mounting
hole
W903
W9 4
0
W9 5
0
W905
Clip for
Hydronic
System
W904
Clip for
Celsius Display
Figure 1. Thermostat base
Figure 1. Thermostat base
1F78
1F78
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
No
No
Mounting
hole
-
+
+
W
RH
B
RC
G
Y
O
ELEC
GAS
Electric/Gas
Switch
White-Rodgers is a division
of Emerson Electric Co.
CONTENTS
Preparations .................................................. 1
Thermostat Details ........................................ 1

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

Mounting and Wiring ...................................... 2
Check Thermostat Operation ......................... 3
Programming your Thermostat ...................... 4
Specifications ................................................ 6
Troubleshooting ............................................. 6
1
PREPARATIONS
Assemble tools required below.
HAND OR POWER
DRILL WITH 3/16 INCH
DRILL BIT, IF NEEDED
Failure to follow and read all instructions carefully
before installing or operating this control could cause
personal injury and/or property damage
3
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.
1. Remove Old Thermostat: A standard heat/cool thermostat
consists of three basic parts:
a. The cover, which may be either a snap-on or hinge type.
b. The base, which is removed by loosening all captive screws.
c. The switching subbase, which is removed by unscrewing
the mounting screws that hold it on the wall or adaptor plate.
2. Shut off electricity at the main fuse box until installation is
complete. Ensure that electrical power is disconnected.
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.
4. Identify each wire attached to the old 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.
www.white-rodgers.com
FLAT BLADE SCREWDRIVER
WIRE CUTTER/STRIPPER
CAUTION
!
PART NO. 37-6614B
Replaces 37-6614A
0731

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Summary of Contents for White Rodgers 1F78

  • Page 1: Removing Old 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. White-Rodgers is a division PART NO. 37-6614B of Emerson Electric Co. Replaces 37-6614A www.white-rodgers.com 0731...
  • Page 2: Removing Old Thermostat

    REMOVING OLD THERMOSTAT CAUTION CONTINUED FROM FIRST PAGE Take care when securing and routing wires so they do not short to adjacent terminals or rear of thermostat. Personal injury and/or property damage may occur. ATTENTION! This product does not contain mercury. However, this product may replace a unit which contains mercury.
  • Page 3: Check Thermostat Operation

    MOUNTING AND WIRING CONTINUED FROM SECOND PAGE JUMPER THERMOSTAT WIRE THERMOSTAT SYSTEM SYSTEM Cooling Heating 24 VAC 120 VAC System Relay System Heating Neutral Relay System HEATING TRANSFORMER 24 VAC NOTE 120 VAC Neutral For 2-wire Heat only, attach to RH and W TRANSFORMER 24 VAC 120 VAC...
  • Page 4: Buttons And Switches

    CHECK THERMOSTAT OPERATION CONTINUED FROM THIRD PAGE 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.
  • Page 5: Programming Your Thermostat

    wish, you may adjust your new thermostat temperature dis- Entering Your Program play to match your old thermostat. This can be accomplished Follow these steps to enter the heating and cooling programs you (within a ±3° range) as follows: have selected. 1.
  • Page 6: Specifications

    PROGRAMMING YOUR THERMOSTAT CONTINUED FROM FIFTH PAGE Check Your Programming 6. Repeat steps 4 and 5 to select the start time and heating tem- perature for the 2nd heating program period. Follow these steps to check your thermostat programming one fi nal 7.
  • Page 7: Troubleshooting

    TROUBLESHOOTING CONTINUED FROM SIXTH PAGE Symptom Possible Cause Corrective Action No Heat (continued) 5. Heating system requires service or Diagnostic: Set SYSTEM Switch to HEAT and raise thermostat requires replacement. the setpoint above room temperature. Within a few seconds the thermostat should make a soft click sound.
  • Page 8 HOMEOWNER HELP LINE: 1-800-284-2925 The Emerson logo is a trademark and service mark of Emerson Electric Co. www.white-rodgers.com...
  • Page 9: Detalles Del Termostato

    5. Desconecte los cables del termostato viejo de a uno a la vez. NO DEJE QUE LOS CABLES VUELVAN A INTRODUCIRSE EN LA PARED. 6. Instale el termostato nuevo siguiendo el procedimiento indicado a continuación. N° DE PIEZA 37-6614B White-Rodgers es una división Reemplaza 37-6614A de Emerson Electric Co. 0731 www.white-rodgers.com...
  • Page 10: Montaje Y Conexiones

    CÓMO RETIRAR EL TERMOSTATO VIEJO ¡PRECAUCIÓN! SIGUE DE LA PÁGINA 1 Al fijar y pasar los cables, tenga cuidado de que no hagan cortocircuito con las terminales adyacentes o en la parte trasera del termostato. Podrían producirse lesiones personales y/o ¡ATENCIÓN! Este producto no contiene mercurio.
  • Page 11 MONTAJE Y CONEXIONES SIGUE DE LA PÁGINA 2 CABLE SISTEMA DE PUENTE SISTEMA TERMOSTATO TERMOSTATO Vivo Sistema Relé Sistema 24 VCA 120 VCA Relé del Sistema de refrigeración ventilador calefacción Neutro ventilador calefacción Vivo TRANSFORMADOR DE CALEFACCIÓN NOTA 24 VCA 120 VCA Neutro Para sólo calor con 2...
  • Page 12 VERIFIQUE EL FUNCIONAMIENTO DEL TERMOSTATO SIGUE DE LA PÁGINA 3 Antes de que comience a usar su termostato, debe familiarizarse con sus funciones y con la pantalla y la ubicación y funcionamiento de los diferentes botones. Su termostato consta de dos partes: la cubierta del termostato y la base.
  • Page 13 Cómo ingresar su programa 1. Presione los botones PRGM y RUN al mismo tiempo. 2. Presione para ajustar la temperatura de pantalla al Siga los pasos indicados a continuación para ingresar los programas de valor deseado. calefacción y refrigeración que ha seleccionado. 3.
  • Page 14: Especificaciones

    PROGRAMACIÓN DE SU TERMOSTATO SIGUE DE LA PÁGINA 5 5. Presione PRGM una sola vez. Aparecerá la hora de inicio y la tempera- 1. Mueva el interruptor SYSTEM a la posición COOL. tura de referencia para el 2° período de calefacción. 2.
  • Page 15 SOLUCIÓN DE PROBLEMAS SIGUE DE LA PÁGINA 6 Síntoma Causa posible Acción correctiva El sistema no calienta 5. El sistema de calefacción requiere servicio Diagnóstico: Coloque el interruptor SYSTEM en HEAT y (continuación) técnico o debe cambiarse el termostato de la temperatura de referencia por encima de la temperatura aumento.
  • Page 16 LÍNEA DE AYUDA PARA EL USUARIO: 1-800-284-2925 El logotipo de Emerson es una marca y una marca de servicio de Emerson Electric Co. www.white-rodgers.com...

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