White Rodgers 1F85-0422 User Manual 2

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CAUTION

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.

APPLICATIONS

THERMOSTAT APPLICATION GUIDE

Description

Heat Pump (No Aux. or Emergency Heat) Yes Heat Pump (with Aux. or Emergency Heat) Yes Systems with up to 2 Stages Heat, 2 Stages Cool Yes Heat Only Systems (with optional fan switch) Yes Millivolt Heat Only Systems – Floor or Wall Furnaces Yes Cool Only Systems Yes Gas or Oil Heat Yes Electric Furnace Hydronic (Hot Water) Zone Heat – 2 Wires Yes Hydronic (Hot Water) Zone Heat – 3 Wires Yes

Yes

Blue Universal Thermostat with

Automatic Heat/Cool Changeover Option

Single Stage, Multi-Stage or Heat Pump

Installation and Operating Instructions for Model:

Model Programming Choices

1F85-0422

1F83-0422

5/1/1 Day 5/2 Day Non-Programmable

Non-Programmable

1F83-0422 Thermostat

SPECIFICATIONS

Electrical Rating:

Battery Power .................................................... mV to 30 VAC, NEC Class II, 50/60 Hz or DC

Input-Hardwire ................................................... 20 to 30 VAC

Terminal Load ........................................................... 1.5 A per terminal, 2.5A maximum all terminals combined

Setpoint Range ......................................................... 45° to 90°F (7° to 32°C)

Differential (Single Stage) ......................................... Heat 0.6°F; Cool 1.2°F (adjustable)

Differential (Heat Pump) ........................................... Heat 1.2°F; Cool 1.2°F (adjustable)

Operating Ambient .................................................... 32° to +105°F (0° to +41°C)

Operating Humidity ................................................... 90% non-condensing max.

Shipping Temperature Range ................................... -4° to +150°F (-20° to +65°C)

Dimensions Thermostat ............................................ 3-7/16”H x 4-7/16”W x 1-1/4”D

ATTENTION: MERCURY NOTICE

To prevent electrical shock and/or equipment damage, disconnect electric power to system at main fuse or circuit breaker box until installation is complete.

Index Page

Installation 2 Wiring Connections 2

Thermostat Quick Reference 3 Installer Conﬁguration Menu 4 Operating Your Thermostat 6 Programming 6 Troubleshooting 8

This product does not contain mercury. However, this product may replace a product that contains mercury.

Mercury and products containing mercury must not be discarded in household trash. Do not touch any spilled mercury. Wearing non-absorbent gloves, clean up any spilled mercury and place in a sealed container. For proper disposal of a product containing mercury or a sealed container of spilled mercury, place it in a suitable shipping container. Refer to www.white-rodgers.com for location to send product containing mercury.

www.white-rodgers.com

PART NO. 37-6894D

Replaces 37-6894C

0948

INSTALLATION

WARNING

“AA” Alkaline Batteries

Mounting

Hole

Mounting

Hole

Place Level

across

Mounting T a bs

(for appearance only)

Place Level across Mounting Tabs (for appearance only)

Thermostat installation and all components of the control system shall conform to Class II circuits per the NEC code.

Remove Old Thermostat

A standard heat/cool thermostat consists of three basic parts:

1) The cover, which may be either a snap-on or hinge type.

2) The base, which is removed by loosening all captive screws.

3) The switching subbase, which is removed by unscrewing

the mounting screws that hold it on the wall or adapter plate. Before removing wires from old thermostat, label each wire with the terminal designation from

which it was attached. Disconnect the wires from the old thermostat one at a time. Do not let wires fall back

into the wall.

Installing New Thermostat

1) Pull the thermostat body off the thermostat base. Forcing

or prying on the thermostat will cause damage to the unit.

2) Place base over hole in wall and mark mounting hole

locations on wall using base as a template.

3) Move base out of the way. Drill mounting holes. If you

are using existing mounting holes and the holes drilled are too large and do not allow you to tighten base snug ly, use plastic screw anchors to secure the base.

4) Fasten base snugly to wall using mounting holes shown

in Figure 2 and two mounting screws. Leveling is for appearance only and will not affect thermostat operation.

5) Connect wires to terminal block on base.

6) Push excess wire into wall and plug hole with a ﬁre re-

sistant material (such as ﬁberglass insulation) to prevent drafts from affecting thermostat operation.

7) Carefully line the thermostat up with the base and snap

into place.

Figure 1 – Battery door shown open

Thermostat can be powered by system AC power or Battery. If

is displayed, the thermostat is battery powered. If is not displayed, thermostat is system powered with optional battery back-up. When battery power remaining is approximately half, the

will be displayed. When “Change ”

is displayed, install fresh “AA” alkaline batteries immediately. For best results, replace all batteries with new premium brand alkaline batteries such as Duracell

or Energizer®. We recom-

mend replacing batteries every 2 years. If the home is going to be unoccupied for an extended period (over 3 months) and

is displayed, the batteries should be replaced before

leaving. When less than two months of battery life remain, the setpoint temperature will offset by 10 degrees (10 degrees cooler in Heat mode / 10 degrees warmer in Cool mode). If offset occurs, the normal setpoint can be manually reset with

or . Another offset will occur within two days if batter-

ies are not replaced.

Figure 2 – Thermostat base and rear view of thermostat

Batteries

2 “AA” alkaline batteries are included with the thermostat. To install the batteries, pull the battery door as shown by the arrow and lift open. Using the polarity indicated inside the battery door, insert the batteries. To close the battery door, swing the door down while pulling in the direction of arrow. Once fully down, snap the door back into position. To replace the batteries, set system to OFF.

WIRING CONNECTIONS

Refer to equipment manufacturers’ instructions for speciﬁc system wiring information. After wiring, see CONFIGURATION section for proper thermostat conﬁguration.

TERMINAL DESIGNATION DESCRIPTIONS

Terminal Designation Description

L...............Heat pump malfunction indicator for systems

with malfunction connection

O ..............Changeover valve for heat pump energized

constantly in cooling

B ..............Changeover valve for heat pump energized

constantly in heating

Y ..............Compressor Relay

Y2 .............2nd Stage Compressor

Refer to 37-6895 for 1F83-0422/1F85-0422 wiring diagram speciﬁcations.

Terminal

Designation Description

W/E ............Heat Relay/Emergency Heat Relay (Stage 1)

W2 .............2nd Stage Heat (3rd Stage Heat in HP 2)

G ..............Fan Relay

RH .............Power for Heating

RC .............Power for Cooling

C ..............Common wire from secondary side of cooling system

transformer or heat only system transformer

6...............3 Wire Zone Valve – Energized when no call for Heat

THERMOSTAT QUICK REFERENCE

Set

SYSTEM

Heat

FAN

Auto

Room Temperature

Setting Temperature

System Indicator

Fa n Indicator

Displays the power level of the 2 “AA” batteries:

indicates good power level

indicates batteries at about half power. “Change ” indicates batteries are low and should be replaced with 2 new premium brand “AA” Alkaline batteries. (See page 2 for more details)

Set

Save

Month Call For Service Change

Filter System On 2

SYSTEM

Cool O Time

Heat Emer Auto

FAN

On Auto

Run Sched

Schedule

P Date

Run

Hold

Heat Pump

Temp Hold

Mo Tu We Th Fr Sa Su

Auto Sched

Cool Savings

Year

Home Screen Description

Figure 3 – Home Screen Display

Figure 4 – Programming & Conﬁguration Items

Programming and Conﬁguration Items

“System On” indicates when heating or cooling stage

is energized. “System On +2” indicates when a second stage is energized.

The word HOLD is displayed when the thermostat is in

the HOLD mode. Temp HOLD is displayed when the thermostat is in a Temporary HOLD mode.

Displays Change Filter when the system has run for

the programmed ﬁlter time period as a reminder to change or clean your ﬁlter.

Displays “Set” for setpoint when in Run Program mode. Displays System Mode (Heat, Emer, Auto, Cool, Off)

or Time in menu mode.

Displays Fan Mode (On, Auto) or “Run Sched” in

Menu mode.

Displays “Run Schedule”, “Schedule”, or “Menu”. Displays “Save” when Cool SavingsTM is working. Displays “Heat Pump” when system is conﬁgured

as Heat Pump thermostat.

Displays “Hold” in programmable mode when not in

“Hold” mode. Displays Light Bulb in non-programmable mode.

Initially displays “Auto Sched”. If Auto Schedule had

been used or disabled, then it displays “Cool Savings” when in the Cool Mode if Cool Savings has been enabled in the menu.

“Call For Service” indicates a fault in the heating/

cooling system, it does not indicate a fault in the thermostat.

INSTALLER/CONFIGURATION MENU

With thermostat in Heat, Cool or Auto, in normal operation, press the Menu button for at least 5 seconds. The display will show item #1 in the table below. Press Menu to advance to the next menu, Press items are not available to 1F86.

INSTALLER/CONFIGURATION MENU

REF.

HP SS

1 1 1 MENU (MS 2) HP 1, SS 1 Selects Multi-Stage (MS 2 No Heat Pump),

2 2 2 MENU (GAS) for SS or MS

3 3 3 MENU CS (0)

4 4 4 MENU E (On) OFF

–

6 5

7 6 6 MENU CR Cool (ME)

8 7 7 MENU CL (OFF) CL On Compressor Lockout Time 9 8 8 MENU Heat Auto

10 9 9 MENU dL (On) dL OFF Selects Display Light On or OFF 11 10 10 MENU 0

12 11 11 MENU

13 12 12 MENU L Heat

14 13 13 MENU L Cool

15 14 14 MENU P3 P0, P2

16 15 15 MENU Heat AS (On)

17 16 16 MENU Cool AS (On) OFF

18 17

19 18

20 19 17 MENU dS (On) OFF

21 20 18 MENU Change Filter (OFF) On Selects Filter Change-out Indicator On or OFF.

22 21 19 MENU Cool On (o) Heat On (b)

22 20 RUN

PRESS

BUTTON

5 MENU CR Heat (ME) SL, FA Adjustable Anticipation:

MENU CR Heat Pump

–

MENU Heat FA (On) OFF Fast Heat option may be disabled by

–

MENU Cool FA (On) OFF Fast Cool option may be disabled by

–

MENU Change Filter (200 h) 25-1975 h Change Filter time in 25 hour increments. This

SCHED

DISPLAYED

(FACTORY DEFAULT)

(ELE) for HP

(Disabled)

(ME)

CR Emer (FA)

Cool Off

(current temperature)

°F °C

(90)

(45)

Press

select from listed options

Heat Off with Fan icon,

Heat Off without Fan icon

Cool Off, Auto Off

1 HI, 2 HI, 3 HI, 4 HI,

1 LO, 2 LO, 3 LO, 4 LO

or to

ELE GAS setting: furnace controls the blower

1, 2, 4, 5, 6 Selects Cool Savings

SL, FA Adjustable Anticipation (Heat Pump) (only

SL, FA

Heat Cool Off,

L 62 to L 89 Selects Limited HEAT Range

L 46 to L 82 Selects Limited COOL Range

OFF Automatic Schedule for heat mode. 1F85 only.

or to change an item option. Shaded

COMMENTS

Heat Pump 1 (HP 1, 1 compressor),

or Single Stage (SS 1)

ELE setting: thermostat controls the blower

Value 1 (low) to 6 (high), Value 0 Disables Feature

Selects Energy Management Recovery (EMR)

On or OFF. 1F85 only

Selects heating cycle rate for MS or SS

when heat pump selected in #1)

Adjustable Anticipation:

Selects the cycle rate for cooling (only when

MS 2 or SS 1 is selected in item 1.) or

Selects the cycle rate for Emergency mode

and Auxiliary stage if Heat Pump is selected

in item 1.

System Mode Conguration

with Automatic Changeover capability

Adjustable Ambient Temperature Display

Selects Fahrenheit/Celsius Temperature Display

Defaults for 5-1-1 programming (P3) but nonprogrammable (PO) or 5-2 programming (P2)

is available on most models. 1F85 only

NA to Cool only system.

Automatic Schedule for cool mode. 1F85 only.

NA to Heat only system.

selecting OFF. NA to SS cong.

NA to Cool only system.

selecting OFF. NA to SS cong.

NA to Heat only system.

Selects Automatic daylight Savings Time option

On or OFF. 1F85 only

menu only appears if On is selected in above.

Selects operation of the reversing valve terminal

(O/B) output as an O or B terminal.

Returns to Normal Operation

INSTALLER/CONFIGURATION MENU

1) This control can be conﬁgured for: MS 2 – Multi-Stage System (no heat pump) HP 1 – Heat Pump with one stage of compressor SS 1 – Single Stage System

2) GAS or Electric (ELE) fan operation. If the heating system requires the thermostat to energize the fan, select ELE. Select GAS if the heating system energizes the fan on a call for heat.

3) Select Cool Savings™ value – Selects the amount of adjustment for the Cool Savings™ feature in Cool mode with 1 (1°) being the least amount of adjustment and 6 (6°) being the most amount of adjustment. Default value is 0 which disables this feature. Cool Savings is an optional energy saving feature that can reduce your cooling costs. It is based on the principal that lower indoor humidity makes a slightly higher temperature feel more comfortable. Cool Savings operates during periods of high demand which normally occur on the hottest summer days when a cooling system may run for hours to reach the thermostat setting. Long cooling run times also lower the indoor humidity. Cool Savings, very slowly, adjusts the setpoint temperature to make the setpoint closer to the displayed room temperature, to a maximum of the number of degrees you select. Adjusting the setpoint temperature over a long cooling run time allows the system to reach your set temperature and turn off. The room temperature will actually be higher than the thermostat displays but the reduction in humidity will allow comfort at the slightly higher temperature.

To turn this feature on in the Cool mode press Cool

Savings. The display will show “Save” next to the setpoint temperature. When Cool Savings is making adjustments to the room temperature display “Save” will be ﬂashing and the displayed room temperature may vary within the adjustment range you selected.

If “Save” is not displayed and this feature is OFF, no

change will occur when the cooling system is continuously running during periods of high demand.

4) Energy Management Recovery: (this step is skipped if

conﬁgured to be non-programmable). Energy Manage-

ment Recovery (E) On enables the thermostat to start heating or cooling early to make the building temperature reach the program setpoint at the time you specify. Heating will start 5 minutes early for every 1° of temperature required to reach setpoint.

Example: E On is selected and your heating is pro-

grammed to 65° at night and 70° at 7 AM. If the building temperature is 65°, the difference between 65° and 70° is 5°. Allowing 5 minutes per degree, the thermostat setpoint will change to 70° at 6:35 AM. Cooling allows more time per degree, because it takes longer to reach set temperature.

5, 6 & 7) Cycle Rate Selection – The factory default setting

for Heat and Cool modes, SS1 and MS2 is medium cycle (ME). For Heat Pump and HP1, the default setting is medium (ME). For Emer (Aux) the default setting is fast cycle (FA). To change cycle rate, press the key.

Cycle rate differentials for different settings are: Fast Medium Slow

MODE FA ME SL

Heat (SS1, MS2) 0.4°F 0.6°F 1.7°F Cool (SS1, MS2) 0.9°F 1.2°F 1.7°F Heat Pump (HP1) 0.9°F 1.2°F 1.7°F Emer (HP1) 0.6°F - 1.7°F

8) Select Compressor Lockout CL OFF or ON – Selecting CL ON will cause the thermostat to wait 5 minutes between cooling cycles. This is intended to help protect the compressor from short cycling. Some newer compressors already have a time delay built in and do not

require this feature. Your compressor manufacturer can tell you if the lockout feature is already present in their system. When the thermostat compressor time delay occurs, it will ﬂash the setpoint for up to ﬁve minutes.

9) System Mode Conﬁguration – This thermostat is con-

ﬁgured for Heat and Cool (SYSTEM switch with Cool Off Heat) default. It can also be conﬁgured for Heat and Cool with Auto changeover (Heat, Auto, Cool, Off), Heat only

with fan (Off Heat), Heat only without fan, Auto only

(Auto Off), and Cool only (Cool Off).

10) Select Backlight Display – The display backlight im-

proves display contrast in low lighting conditions. When the “C” terminal is powered, selecting backlight CdL ON will keep the light on continuously. Select backlight OFF will turn the light on momentarily after any key is pressed. When the “C” terminal is not powered, the light will be on momentarily after any key is pressed no matter whether the backlight is selected ON or OFF.

11) Select Temperature Display Adjustment 4 LO to 4 HI

– Allows you to adjust the room temperature display up to 4° higher or lower. Your thermostat was accurately calibrated at the factory, but you have the option to change the display temperature to match your previous thermostat. The current or adjusted room temperature will be displayed.

12) Select F° or C° Readout – Changes the display readout to Celsius or Fahrenheit as required.

13) Limited Heat Range – This feature provides a maximum setpoint temperature for heat. The default setting is 90°F. It can be changed between 62°F and 89°F by pressing the

14) Limited Cool Range – This feature provide a minimum setpoint temperature for cool. The default setting is 45°F. It can be changed between 46°F and 82°F by pressing the

15) Program Options: 1F85 only, conﬁgured for 5/1/1 day or

5/2 day programming or non-programming mode. The

default setting is P3, indicating 5/1/1 day programming. The programs per week can be changed to P2 or P0 by pressing the non-programmable will eliminate the need for EMR, and that step in the menu will be skipped.

16 & 17) Select Automatic Schedule – 1F85 only, with just

one touch of the Auto Schedule key this feature allows

you to program a desired comfort temperature into all the program periods along with a 6° set back for night peri-

ods of both Heat and Cool programs. Factory default is “On” for both. When Heat AS On and Cool AS On are activated while in Heat or Cool mode, select desired setpoint temperature and press Auto Schedule. This value will be copied into all the morning, day and evening program periods. The night program periods will have a 6°F set back.

18 & 19) Select Fast Second Stage ON or OFF – Heat

pump or Multi-stage only, in the run mode, with the fast Heat feature enabled (FA Heat On), if the Heat setpoint temperature is manually raised by 3°F (2°C) or more above the actual temperature using stage will energize immediately. With FA OFF, second stage will not energize until the setpoint temperature is 1°F or more above actual temperature for more than ten minutes. The Fast Cool feature (FA Cool) provides the same controls when the setpoint temperature is lowered.

20) Select Daylight Saving Time Calculation – 1F85 only,

this feature will allow the thermostat to calculate the DST automatically and apply it to the Real Time Clock display. Default On. Use feature OFF.

or key.

or keys. A selection of 0 Days for

the second

or touch keys to select the

+ 11 hidden pages

White Rodgers 1F85-0422 User Manual 2

Specifications and Main Features

Frequently Asked Questions

User Manual