Home > WHITE RODGERS > WHITE-RODGERS 1F90-71 5-Day 2-Day Electronic Digital Thermostat Instruction Manual
WHITE-RODGERS 1F90-71 5-Day 2-Day Electronic Digital Thermostat Instruction Manual
CAUTION
NOTE
!
All wiring diagrams are for typical systems only. Refer to
equipment manufacturers’ instructions for specific sys-
tem wiring information.
To prevent electrical shock and/or equipment
damage, disconnect electrical power at the main
fuse box or circuit breaker until installation is
complete.
From heating system
From 24 VAC transformer
THERMOSTAT
Y
6
MV
G
W
RC
RH
6
W
RC
G
SYSTEM
MV
Heating
System
Hot
120 VAC
Y
24 VAC
RH
Neutral
TRANSFORMER
Thermostat Terminal Connections
Figure 4. Typical wiring diagram for heat only, 2-wire, single transformer systems
From 24 VAC
transformer
From heating system
JUMPER
WIRE
THERMOSTAT
SYSTEM
6
W
RC
G
Y
6
MV
G
W
RC
RH
MV
NOTE
Fan
Heating
System
RED jumper wire (pro-
vided with thermostat)
must be connected be-
tween thermostat's RH
and RC terminals for pro-
per thermostat operation
with this system.
Relay
Hot
Y
24 VAC
120 VAC
RH
From fan relay
CONNECT red jumper
wire (provided)
Neutral
TRANSFORMER
Thermostat Terminal Connections
Figure 5. Typical wiring diagram for heat only, 3-wire, single transformer systems
From 24 VAC
transformer
THERMOSTAT
SYSTEM
Y
6
MV
G
W
RC
RH
6
W
RC
G
MV
Cooling
System
Fan
Relay
Hot
120 VAC
Y
From fan relay
From cooling system
24 VAC
RH
Neutral
TRANSFORMER
Thermostat Terminal Connections
Figure 6. Typical wiring diagram for cool only, 3-wire, single transformer systems
From heating system
CONNECT red jumper
wire (provided)
JUMPER
WIRE
THERMOSTAT
SYSTEM
Y
6
MV
G
W
RC
RH
6
W
RC
G
W
MV
RH
NOTE
Cooling
System
Fan
Heating
System
RED jumper wire (pro-
vided with thermostat)
must be connected be-
tween thermostat's RH
and RC terminals for pro-
per thermostat operation
with this system.
Relay
Hot
Y
From fan relay
24 VAC
120 VAC
Neutral
From cooling system
From 24 VAC
transformer
TRANSFORMER
Thermostat Terminal Connections
Figure 7. Typical wiring diagram for heat/cool, 4-wire, single transformer systems
4
| General | Details |
|---|---|
| Name | WHITE-RODGERS 1F90-71 5-Day 2-Day Electronic Digital Thermostat Instruction Manual |
| Make | WHITE RODGERS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.13 MB |
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