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
From millivolt system
THERMOSTAT
SYSTEM
Y
6
MV
G
W
RC
RH
6
W
RC
G
MV
Millivolt
System
Y
RH
From millivolt system
Thermostat Terminal Connections
Figure 8. Typical wiring diagram for millivolt systems
From millivolt system
From 24 VAC
transformer
THERMOSTAT
Y
6
MV
G
W
RC
RH
6
W
SYSTEM
MV
RC
G
Millivolt
System
Cooling
System
Fan
Hot
Relay
24 VAC
120 VAC
Y
Neutral
RH
TRANSFORMER
From fan relay
From cooling system
Thermostat Terminal Connections
Figure 9. Typical wiring diagram for millivolt systems + cool only, 3-wire systems
From zone valve
THERMOSTAT
SYSTEM
6
W
RC
G
Y
6
MV
G
W
RC
RH
MV
6
1
4
2
5
Zone
Valve
Hot
Y
24 VAC
120 VAC
RH
From 24 VAC transformer
(through zone valve)
Neutral
TRANSFORMER
Thermostat Terminal Connections
Figure 10. Typical wiring diagram for heat only, 3-wire, zone valve systems
From heating
system
From 24 VAC
cooling transformer
THERMOSTAT
Y
6
MV
G
W
RC
RH
SYSTEM
Hot
6
W
MV
RC
G
24 VAC
Cooling
System
Fan
Heating
System
120 VAC
Relay
Neutral
HEATING TRANSFORMER
Hot
Y
From fan relay
RH
From cooling
system
24 VAC
120 VAC
From 24 VAC
heating transformer
Neutral
COOLING TRANSFORMER
Thermostat Terminal Connections
Figure 11. Typical wiring diagram for heat/cool, 5-wire, two-transformer system
4. Place subbase over hole in wall and mark mounting
hole locations on wall using subbase as a template.
mounting holes, or if holes drilled are too large and do
not allow you to tighten subbase snugly, use plastic
screw anchors to secure subbase.
5. Move subbase out of the way. Drill mounting holes.
7. Push excess wire into wall and plug hole with a fire-
resistant material (such as fiberglass insulation) to
prevent drafts from affecting thermostat operation.
6. Fasten subbase loosely to wall, as shown in fig. 3,
using two mounting screws. Place a level against
bottom of subbase, adjust until level, and then tighten
screws. (Leveling is for appearance only and will not
affect thermostat operation.) If you are using existing
5
| 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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