White Rodgers 1F90W-51 Replacement Installation, Remove Old Thermostat, Attach Subbase To Wall

Page 3
REPLACEMENT INSTALLATION

REPLACEMENT INSTALLATION

REMOVE OLD THERMOSTAT

1.Shut off electricity at the main fuse box until installa- tion is complete. Verify power is off with a voltmeter.

2.Remove the front cover of the old thermostat. With wires still attached, remove wall plate from the wall.

3.If the old thermostat has a wall mounting plate, remove the thermostat and the wall mounting plate as an assembly.

4.FOR HEATING ONLY SYSTEMS — Disconnect the two wires from the old thermostat. Skip steps 5 through 7 below and proceed to ATTACH SUBBASE TO WALL.

5.FOR HEATING/COOLING SYSTEMS — Before re- moving wires from old thermostat, identify the termi- nals that have wires attached on the old thermostat. Then use Table 1 to identify the type of thermostat you are replacing. For example, if the old thermostat has wires attached to terminals R, W, Y, and G, the old thermostat is a type 5 (note that the old thermostat may not have wires attached to all the terminals identified in Table 1).

6.Use the self-adhesive labels enclosed with your new thermostat to identify the wires attached to the old thermostat. The labels correspond to the thermostat type number you identified in step 5 above (see Table 2). For example, if you determined that the old thermostat is a type 5, use the labels for the type 5 thermostat (you may not use all the labels for the type number you've identified if the old thermostat did not have wires attached to all the terminals).

7.Label each wire as you disconnect it. The labels have both the old terminal markings and the new terminal identification. Discard any unused labels. PULL AT

LEAST SIX INCHES OF WIRE OUT OF THE WALL WHEN YOU DISCONNECT IT - DO NOT ALLOW THE WIRES TO FALL BACK INTO THE WALL.

TABLE 1. OLD THERMOSTAT IDENTIFICATION

 

OLD

 

 

 

OLD THERMOSTAT

 

 

 

 

 

THERMOSTAT

 

 

 

 

 

 

 

 

 

 

TERMINAL IDENTIFICATION

 

 

 

TYPE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

 

4

 

W

 

 

RC

 

Y

 

 

G

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

 

RH

 

W

 

 

RC

 

Y

 

 

G

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

 

M

 

H

 

 

 

V

 

C

 

 

F

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

 

R5

 

4

 

 

 

 

 

 

 

 

 

Y6

 

 

G

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

 

R

 

W

 

 

 

 

 

 

 

Y

 

 

G

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TABLE 2. WIRE IDENTIFICATION LABELS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

New Old

New Old

New Old

New Old

New Old

 

 

1

 

RH 4

W W

RC RC

Y Y

G G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

New Old

New Old

New Old

New Old

New Old

 

 

2

 

RH RH

W

 

W

RC

RC

Y

Y

G

G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

New Old

New Old

New Old

New Old

New Old

 

 

3

 

RH M

W H

RC V

Y C

G F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

 

New Old

New Old

 

 

 

 

 

 

 

 

New Old

New Old

 

 

4

 

RH R5

W

4

 

 

 

 

 

 

 

 

Y

Y6

G

G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

 

New Old

New Old

 

 

 

 

 

 

 

 

New Old

New Old

 

 

5

 

RH R

W

 

W

 

 

 

 

 

 

 

 

Y

Y

G

G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ATTACH SUBBASE TO WALL

1.Remove the packing material from the thermostat. Place the fingers of one hand on the center top and bottom portion of the thermostat. Grasp the subbase in the other hand on the top and bottom center, and gently pull straight out (see fig. 2). The thermostat has pin and socket connectors. Forcing or prying on the thermostat will cause damage to the unit.

2.Pull wires through opening in the center of the sub- base. DO NOT LET WIRES FALL BACK INTO

WALL.

3.Connect wires beneath terminal screws on subbase using appropriate wiring schematic (see figs. 3 through 8).

4.Place subbase over hole in wall and mark mounting hole locations on wall using subbase as a template.

(Installation instructions continue on page 5.)

PULL STRAIGHT OUT

Figure 2. Removing thermostat from subbase

Expansion

Plugs

Connect wires under

terminal screws

Mounting

 

 

Activity

W

 

Light

Hole

6-pin Connector

Mounting

 

RC

 

 

G

 

Hole

 

Y

 

 

 

RH

 

 

 

3-pin Connector

 

 

Pull wires through

this opening

Figure 3. Subbase

3

 

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Contents DESCRIPTION PRECAUTIONSCONTENTS Operator Save these instructions for future useSELECT THERMOSTAT LOCATION SPECIFICATIONSINSTALLATION NEW INSTALLATION ROUTE WIRES TO LOCATIONREPLACEMENT INSTALLATION REMOVE OLD THERMOSTATATTACH SUBBASE TO WALL RC G ATTACH THERMOSTAT TO SUBBASE ELECTRIC HEAT SYSTEMS OPERATION SYSTEM CONFIGURATIONENERGY MANAGEMENT RECOVERY EMR CHECK THERMOSTAT OPERATIONCOOLING SYSTEM TROUBLESHOOTINGWhite-RodgersDivision, Emerson Electric Co WARRANTY INFORMATIONWARRANTY INFORMATION FOR CONSUMERS Attn Technical Service Department
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Manual 32 pages 55.65 Kb

1F90W-51 specifications

The White Rodgers 1F90W-51 is a sophisticated thermostat designed for modern heating and cooling systems, offering homeowners a blend of convenience, energy efficiency, and advanced technology. This programmable thermostat is well-regarded for its user-friendly features and ease of installation, making it a popular choice among DIY enthusiasts and professionals alike.

One of the standout features of the White Rodgers 1F90W-51 is its ability to provide precise temperature control. It supports a 7-day programming schedule, allowing users to set different temperatures for each day of the week, maximizing comfort while minimizing energy usage. This feature is particularly beneficial for families with varying schedules, enabling them to maintain optimal home temperatures when they are present and reduce heating or cooling when the house is empty.

The 1F90W-51 incorporates advanced technology that allows for compatibility with a wide range of HVAC systems, including conventional heating and cooling setups, heat pumps, and even multi-stage systems. The thermostat's digital display makes it easy for users to read and adjust settings, while its intuitive interface simplifies programming and operation.

In terms of efficiency, the White Rodgers 1F90W-51 is designed to help homeowners save on energy bills. By allowing for precise temperature adjustments and programmable schedules, it encourages users to optimize their heating and cooling usage. This not only protects the environment by reducing energy consumption but also translates to cost savings over time.

Another notable characteristic of the 1F90W-51 is its built-in temperature hold feature, which allows users to override the programmed settings temporarily. This is useful for occasions when unexpected changes in schedule may require a quick adjustment without the need to reprogram the entire unit.

In addition to functionality, the White Rodgers 1F90W-51 boasts a sleek design that blends seamlessly into any home décor. Its compact size and classic appearance allow it to fit well in various locations throughout the house.

Overall, the White Rodgers 1F90W-51 is a reliable and feature-rich thermostat that provides users with the tools needed to enhance their home comfort while remaining conscious of energy consumption. Its combination of programmability, compatibility, and user-friendly design makes it a top choice for those seeking an efficient and effective climate control solution.
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