Home > WHITE RODGERS > White Rodgers 1F78-144 Non Programmable Thermostat Instruction Manual
White Rodgers 1F78-144 Non Programmable Thermostat Instruction Manual
MOUNTING AND WIRING
CONTINUED FROM SECOND PAGE
4
JUMPER
WIRE
THERMOSTAT
SYSTEM
Hot
Y
B
O
G
W
RC
RH
THERMOSTAT
SYSTEM
Y
B
O
G
W
RC
RH
Cooling
Fan
Heating
24 VAC
120 VAC
Neutral
System Relay System
Fan
Heating
System
Relay
Hot
HEATING
TRANSFORMER
24 VAC
120 VAC
Neutral
NOTE
For 2-wire Heat only,
attach to RH and W
Hot
TRANSFORMER
24 VAC
120 VAC
Neutral
Figure 2.Typical wiring diagram for
heat only, 3-wire, single transformer systems
COOLING TRANSFORMER
Figure 5.Typical wiring diagram for
heat/cool, 5-wire, two-transformer systems
JUMPER
WIRE
THERMOSTAT
Y
B
O
G
W
RC
RH
SYSTEM
JUMPER
WIRE
JUMPER
WIRE
THERMOSTAT
SYSTEM
Cooling
Fan
Y
B
O
G
W
RC RH
System Relay
Hot
24 VAC
120 VAC
Neutral
Reversing Compressor Fan
Valve*
Contactor Relay
Hot
TRANSFORMER
24 VAC
120 VAC
Neutral
* Reversing valve is energized when the
system switch is in the COOL position
Figure 3.Typical wiring diagram for
cool only, 3-wire, single transformer systems
TRANSFORMER
Figure 6.Typical wiring diagram for heat pump
with reversing valve energized in COOL
NOTE
RED jumper wire (provided with thermostat) must be
connected between thermostat RH and RC terminals
for proper thermostat operation with this system.
JUMPER
WIRE
JUMPER
WIRE
JUMPER
WIRE
THERMOSTAT
SYSTEM
THERMOSTAT
SYSTEM
Y
B
O
G
W
RC RH
Y
B
O
G
W
RC RH
Reversing Compressor Fan
Valve*
Contactor Relay
Cooling
Fan
Heating
System
Hot
System Relay
Hot
24 VAC
120 VAC
Neutral
24 VAC
120 VAC
Neutral
* Reversing valve is energized when the
system switch is in the HEAT position
TRANSFORMER
TRANSFORMER
Figure 7.Typical wiring diagram for heat pump
with reversing valve energized in HEAT
Figure 4.Typical wiring diagram for
heat/cool, 4-wire, single transformer systems
CHECK THERMOSTAT OPERATION
5
This thermostat has a time delay between cooling cycles to allow
the head pressure in the compressor to stabilize. If the temperature
is adjusted to call for cool within 5 minutes of the last cycle the
snowflake icon will blink indicating the thermostat is locked out.After
3 to 5 minutes, the compressor will start and the snowflake icon will
stop flashing. This helps prevent the compressor from cycling too
quickly and is normal operation for the thermostat.
NOTE
To prevent static discharge problems,touch side of thermo-
stat 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.
Fan Operation
If your system does not have a G terminal connection, skip to
Heating System.
1. Move SYSTEM switch to COOL position.
2. Press
to adjust thermostat setting below room temperature.
The blower should come on immediately on high speed, followed
by cold air circulation
1. Turn on power to the system.
3. Press to adjust temperature setting above room
temperature. The cooling system should stop operating.
2. Move FAN switch to ON position. The blower should begin to
operate.
3. Move FAN switch to AUTO position. The blower should stop
immediately.
Heating System
1. Move SYSTEM switch to HEAT position. If the heating system
has a standing pilot, be sure to light it.
Cooling System
2. Press
toadjustthermostat settingabove room temperature.
The heating system should begin to operate.
CAUTION
To prevent compressor and/or property damage, if the
outdoor temperature is below 50°F, DO NOT operate the
cooling system.
!
3. Press
toadjusttemperaturesettingbelowroomtemperature.
The heating system should stop operating.
| 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 |
(1 votes, average: 5.00 out of 5)
Loading...
White-Rodgers 1E78 Non Programmable Heat Only Thermostat User Manual
White-Rodgers 1F97-1277 Big Blue Single Stage Thermostat User Manual
White-Rodgers 1F56N-444 Thermostat User Manual
White-Rodgers 1F83-277 Heating & Air Conditioning Auto Changeover Heat Pump Thermostat User Manual
White-Rodgers M30 Thermostat Instruction Manual
WHITE-RODGERS 1F51N-619 Low Voltage Evaporative Cooler Thermostat Instruction Manual
White Rodgers 1F78-151 Non Programmable Thermostat Instructions
WHITE RODGERS 1F80-51 Programmable Electronic Digital Thermostat Instruction Manual
WHITE-RODGERS 1F86-0471 Blue Single 1 1 Stage Thermostat Instruction Manual
WHITE-RODGERS 1F90-71 5-Day 2-Day Electronic Digital Thermostat Instruction Manual
Danfoss ECtemp Next Plus Electronic Intelligent Timer Thermostat Installation Guide
BOSCH Thermostat atmosphere Smart Home 230 V Instruction Manual
technolysis HYT002-WIFI WI-FI Digital Heating Thermostat User Manual
STELPRO STCP MULTIPLE PROGRAMMING ELECTRONIC THERMOSTAT User Guide
Sinum R-S3 Room Thermostat Owner’s Manual
Danfoss RMT-24 Room Thermostat Installation Guide
COLDBUSTER MWD5 Programmable Thermostat User Manual
ENGO CONTROLS ESIMPLE230B 230V Simple Dial Thermostat User Guide
Danfoss TP5001B Programmable Room Thermostat User Guide
Honeywell ATC928 Evohome Connected Multi Zone Room Thermostat Installation Guide