Robertshaw 300, 224, 226, 230, 300-225 Installation & Programming Manual

...

Page 1

RCBERTSHAW DELUXE PROGRAMMABLE THERMOSTATS

MEET CA TITLE 24 REQUIREMENTS

Robertshaw warrants to the original purchaser that this product and its component parts will be free from defects in workmanship and materials for a period of two years from the date of purchase. Your dealer will provide free replacement of the product upon proof of purchase.

This warranty does not apply in the event of misuse, abuse or as a result of unauthorized alterations or repairs. Robertshaw will not be liable for any consequential damages including, without limitation, damages resulting from defects, loss of use or misuse.

NORTH AMERICA

ROBERTSHAW CONTROLS COMPANY

UNI-LINE NORTH AMERICA l P.O. BOX 2000 l CORONA, CA

PRINTED IN CANADA 1

996

Robertshaw

Company

97255 ALTO1

l-898

TABLE OF CONTENTS

INTRODUCTION

...........................................................................................................

STANDARD FEATURES

............................................................................................

4-6

THERMOSTAT LOCATION

............................................................................................

REMOVING THE THERMOSTAT FROM THE SUBBASE

..............................................

DESCRIPTION OF THE DIPSWITCH FUNCTIONS

.................................................

9-11

COVER LOCK

.............................................................................................................

REPLACING THE THERMOSTAT ON THE SUBBASE

................................................

WIRING DIAGRAMS

..............................................................................................

13-24

PROGRAMMING 7 DAY MODELS

.........................................................................

26-29

PLANNING YOUR SCHEDULE

.................................................................................

THE CURRENT

.......................................................................

SETTING YOUR PROGRAM TEMPERATURES

......................................................

SETTING YOUR PROGRAM TIMES

.........................................................................

TEMPERATURE OVERRIDE

....................................................................................

CHANGING FAHRENHEIT (“F) TO CELSIUS

....................................................

CHANGING 12 HOUR TIME TO 24 HOUR TIME

......................................................

Installation

Programming Instructions

for

Deluxe Programmable Thermostats

POWER FAILURES

.................................................................................................

OUTDOOR TEMPERATURE INDICATOR (OPTIONAL)

............................................

PROGRAMMING

DAY MODELS

.....................................................................

TYPICAL RESIDENTIAL SCHEDULE

.......................................................................

PLANNING YOUR SCHEDULE

.................................................................................

SETTING THE CURRENT DAY/TIME

......................................................................

SETTING THE WEEKDAY PROGRAM TIMES AND HEATING TEMPERATURES

32-33

SETTING THE WEEKDAY AND WEEKEND COOLING TEMPERATURES

..........

33-34

REVIEWING SCHEDULED TIMES AND TEMPERATURES

........................................

CHANGING SCHEDULED TIMES AND

...........................................

SPECIFICATIONS

..................................................................................................

36-37

IMPORTANT INSTALLER’S NOTE

........................................................................

IMPORTANT: Read this manual thoroughly to understand all

I----

the features of your deluxe programmable thermostat.

Page 2

INTRODUCTION

The Deluxe Programmable Thermostat represents the most advanced solid-state, microcomputer temperature control on the market today. The thermostat incorporates state-of-the-art technology packaged in an extremely low profile designer series case. Ultra-Touch controls are combined with a easy-to-read, full function liquid crystal display to provide the ultimate in “user friendly” operation of your heating and air conditioning equipment.

STANDARD FEATURES

No batteries required

always remembers scheduled events and temperatures

100% Solid State circuitry Computerized heat anticipation and cooling droop Built-in short cycle protection during normal operation Tamper proof electronic keyboard lockout

Auto or Manual fan operation

Auto or Manual Heat/Cool changeover* Constant Hold feature allows continuous override Temporary temperature override Selectable 12 or

hour clock display Selectable Fahrenheit or Celsius temperature display Lockable Access Cover Full Function Liquid Crystal Display (LCD)

No Auto changeover on

or 230

FOR MODELS

Press to set the real time Day, Hour and Minute

to set the Heating

Cooling setpoints

Press to set program

days and times Press to hold the current

setting. The program will hold indefinitely or until RESUME is pressed

Press to display the outdoor temperature (Optional)

Press to select The word is displayed

for 5 seconds. (Emergency heat for

300227) Select for continuous

Fan or Auto Fan Press to exit the

hold

or override program, or when programming is complete

Press to set the real time Day,

Press to

the

Hour and Minute

outdoor temperature (Optional)

Press to change from

Press to select

Daylight Savings

The word is displayed

Press to set program

for 5

temperatures and

(Emergency Heat for

start times

Select for continuous Fan or Auto Fan

Press to

the current

setting. The program

Press to exit the hold

will

indefinitely or

until RESUME is

or override program, or when programming

pressed

is complete

To Raise

the

Press

at the same time to change

the temperature

Celsius to Fahrenheit

THERMOSTAT LOCATION

ensure proper operation, the thermostat should be mounted on an

wall in a frequently

occupied area of the building.

In addition, its position must be at least

(46

cm) from any

outside

wall, and approximately

(1.5 m) above the floor in a location with freely circulating air

an average temperature.

Be sure to avoid the following locations:

doors or in corners where freely

air

unavailable

where direct sunlight or radiant heat from appliances might affect control operation

on an

wall

adjacent to, or in line

conditioned air discharge

stairwells or outside doors

where its operation may be affected by steam or water pipes or warm air stacks in an

adjacent partition, or by an

area behind the thermostat

where its operation will be affected

by the supply air of an adjacent unit

near sources of electrical Interference such as arcing relay contact

To Lower To Raise the

the

Press

at the same time to change

the temperature from Celsius to Fahrenheit

Page 3

REMOVING THETHERMOSTAT FROM THE SUBBASE

DESCRIPTION OF THE DIPSWITCH FUNCTIONS

Insert a flat blade screwdriver, or a coin,

2 Events or 4 Events Per Day

the case from the bottom two corners and

separate from the subbase as shown in the diagram at the left. Some

more force than others when

rating due to the number of terminals used.

2. Swing the thermostat out from the bottom.

3. Lift the thermostat up and off the subbase.

into the slot located in the bottom

ter of the thermostat case and

twist

turn. When you feel or hear a “click”, grasp

4 EVENTS will allow you to

program

DAY EVENING

and

NIGHT

settings.

Smart

Fan (3MM26,3l%?27,3lW?29)

When the Smart Fan switch is in the on position and the Fan

has been energized (during the occupied program), the thermostat will keep the fan running continuously during the pied programs and automatically cycle the fan with a call for heating or cooling during the

program.

The unoccupied program is the night program.

Your thermostat can be set to either 2 events or 4 events per day.

EVENTS will allow you to program a DAY

setting and a NIGHT

setting.

4. Place the rectangle opening in the subbase over the equipment control wires protruding from the wall and, using the subbase as a template, mark the location of the two mounting holes

(exact vertical mounting is necessary only for appearance).

5. Use the supplied anchors and screws for mounting on drywall or plaster: drill two

(5mm)

diameter holes at the marked locations; use a hammer to tap the nylon anchors in flush to the

wall surface and fasten subbase using the supplied screws. (Do not overtighten!)

6. Connect the wires from your system to the thermostat terminals as shown in the wiring diagrams. Carefully dress the wires so that any excess is pushed back into the wall cavity or junction box,

Ensure that the wires are flush to the plastic subbase. The access hole should be sealed or

stuffed to prevent drafts from the wall affecting the thermostat.

Single or Multistage

For equipment with single compressor (2

cool for 300-227 or 1

cool for

switch to “single stage”.

For equipment with two compressors (3 heaV2 cool for 330-227 or

2 heaV2 cool for

switch to “multistage”.

LED #l (300226,306-227,3W&?9)

Switch “on” will energize the LED light pipe at the top of thermostats plus the filter indicator on the display. This would indicate filter needs changing.

LED

Switch “on” will energize the LED light pipe at the top of thermostats plus the wrench indicator on

the display. This would indicate service is required.

FEATURES Remote Sensor RS2

The thermostat is designed to accept the Remote Sensor (10528) which will allow you to locate

your thermostat in area away from view.

LED Auxiliary Heat Indicator

Your thermostat is equipped with a LED that indicates when the system has engaged auxiliary heat mode. It is the center (RED) LED.

Add-On Heat Pumps

Your thermostat is equipped to enhance the performance of an “Add-On” heat pump. The thermostat, in most

will perform the function of a fossil fuel kit.

To select “Add-On”, place switch

for

to the “ON” position. The thermostat will turn off the compressor with a call for “AUX” heat, When the switch is set to normal, the thermostat allows the compressor and the “AUX” heat to be on simultaneously.

Minute or 4 Minute Minimum On Times

Keypad Lock

Place the

in the “Locked” position to lockout all buttons except the Outdoor Temperature button.

Plenum Fan Switch

OFF

Fan comes on immediately with heat (used on electric heat).

The fan is controlled by the system (used on gas/oil heat).

Standard/Add-on Heat Pump

For most heat pump applications, this switch should be left

the “Standard” position. This will allow the compressor and the auxiliary heat to be on simultaneously. For add-on heat pumps, or heat pumps that require fossil fuel kits, move this switch to the “Add-on” position. This will turn off the compressor with a call for auxiliary heat.

Setting the Outdoor Hi

Lo Temperature Balance Points

When

the optional Robertshaw Remote Outdoor Sensor

#lo-529) you can select

the outdoor balance points to lock-out the auxiliary heat and/or the compressor of the heat pump. To set the balance points:

1. Press and hold the OUTDOOR button, then press the MODE button. “HibP” will appear in the display meaning HI balance point, along with the factory

(48°C). Any outside

temperature above the “HibP” will lock out the

heat. any temperature below the “HibP”

will allow the auxiliary heat to run when called for by the thermostat.

2. Press

to set the “HibP” temperature. (A typical setting may be 52°F).

3. Press the OUTDOOR button. “LobP”

appear in the display meaning Lo balance point, along

the factory setting of -54°F

Any outside temperature below the “LobP” will lock out

the compressor, any temperature above the “LobP” will allow the compressor to run when

called for by the thermostat.

4. Press

to set the “LobP” temperature. (A typical setting may be

5. Press the RESUME button

Page 4

WIRING DIAGRAM

You may also lock the cover down to prevent unauthorized access to the thermostat by adding the clear plastic lock (included in the installation bag). To install, remove the thermostat from the subbase and place the clear plastic lock in the subbase as shown below. Replace the thermostat and close the cover. The cover is now locked. To open, simply use a screwdriver to push the lock back, allowing the cover to open. To remove the lock, open the cover, remove the thermostat from the subbase, then remove the lock.

REPLACING THE THERMOSTAT ON THE SUBBASE

1. Position the thermostat on the hinged tabs located at the top of the subbase.

2. Gently swing the thermostat down and press on the bottom center edge until it snaps in place.

OUTPUT

TERMINAL FUNCTIONS

OFF ON

min. (on/off)

Unlocked

Locked

Electric

Gas

. . . . . . . . . . . . .

24VAC

supply

from

heating

. . . . . . . . . . . . . . .

Energizes

the

heating

equipment

with a call for heating

. . . . . . . . . . . . .

24VAC

supply

from

cooling

. . . . . . . . . . . . . . . .

Energizes

the

cooling equipment

with a call for cooling

. . . . . . . . . . . . . . .

Fan

energized

with

a call

for

Heating or Cooling or selected by pressing the Fan button Heating mode.

. . . . . . . . . . .

Use to

connect Outdoor

Temperature Sensor and/or

Indoor Remote Sensor Options. Refer to the instructions included with the sensors.

Equipment load resistors(proivided) may be required on the W, Y and G switching circuits if the equipment

loads do not draw

amps. Connect load resistors at the equipment. ‘See important installer’s note on page 38 and 39.

Line

Voltage

300-224

WIRING DIAGRAM

Note 1:

If jumper removed, a

separate transformer must be used to

power the loads.

Note

2: This thermostat may be used with 24 Volt DC. The negative side of the DC supply must be wired to the 24V (C) terminal.

Note 1

24V

Note 2

24 VAC Transformer

Page 5

OUTPUTTERMINAL FUNCTIONS

. . . . . . . . . . . . .

Energizes on a call for first stage heat

. . . . . . . . . . . . . .

Energizes with a call for cooling

. . . . . . . . . . . . . . .

Fan is energized with a call for heating or selected by pressing the fan button

. . . . . . . . . . . . . . .

Independent switching voltage’

24V

. . . . . . . . . . . .

24 VAC hot from the equipment transformer

. . . . . . .

24 VAC common from the equipment transformer

WIRING DIAGRAM

300-226

RS2

. . . . . . . . . . .

Use to connect outdoor temperature sensor and/or indoor remote sensor

options. Refer to the instructions

included with the sensors.

OFF ON

4 events

2 events

Smart fan “OFF

“ON”

4 min. (on/off)

2 min. (on/off)

Unlocked

Locked

Electric

Gas

Allows for DC operation required on some older

Lennox and

units.

To replace a dual transformer system, connect the hot lead of the higher rated transformer (Tl) to the 24V terminal. Connect the common to the Connect the common of the second transformer to the common lead of the

and tape off or wire nut the

hot lead of T2.

Important: Switch

must be left in “OFF” position

OUTPUT TERMINAL FUNCTIONS

WIRING DIAGRAM

as2

Off ON

. . . . . . . . . . . . .

Auxiliary Heat is energized as second stage heating or Emergency Heat

. . . . . . . . . . . . . .

Compressor is energized with a call for Heating or Cooling

. . . . . . . . . . . . . . .

Fan is energized with a call for Heating or Cooling or selected by pressing the Fan button

. . . . . . . . . . . . . . .

Independent Switching Voltage*

24V

24 VAC Hot from the equipment transformer

. . . . . . . . .

24 VAC common from the equipment transformer

LED1. . . . . . . .

Free lights for status or function indication

LED 2 RS2

. . . . . . . . . . .

Use to connect outdoor temperature Sensor and/or indoor Remote Sensor Options. Refer to the instructions included with the sensors.

. . . . . . . . . . . . . . .

Energizes the reversing continuously

the Cooling

mode.

. . . . . . . . . . . . . . .

Energizes the reversing continuously in the Heating and off modes.

Note

If jumper is removed, the terminal may be used to accommodate independent switching circuits,

Note

2: This thermostat may be used

The negative side of the be wired to the 24V (C)

Note 1:

If jumper

removed, a separate

transformer must be used to power the loads.

Note

2: This thermostat may be used with 24 Volt DC. The negative side of the DC supply must be wired to the 24V (C) terminal.

Line

Voltage

VAC

Transformer

separate

used

Page 6

. . . . . .

-........ Energizes auxiliary heat as second stage

emergency heat

. . . . . . . . . . . . . . . . . . . .

Energizes

compressor

no.

on a

call for

second stage heating or cooling

. . . . . . . . . . .

Energizes

auxiliary heat as

last stage heating or

first stage emergency heat

. . . . . . . . . . . . . . “.“. Energizes

compressor

no.

on a call

for

first stage heating or cooling

. . . . . . .

Fan

is energized

with

a call

for heating

or cooling or by pressing the fan button

. . . . . . . . . . . . . . . . . . . .

Independent

switching

voltage’

24V

. . . . . . . . . . . . . . . . .

VAC

hot

from

the

equipment

transformer

. . . . . . . . . . . . . 24 VAC

the equipment transformer

. . . . . .

Free lights for status

LED2

or function indication

RS2

. . . . . . . . . . . . . . . . .

Use

to connect outdoor

temperature sensor

indoor remote sensor options. Refer

RS+V

to the instructrons included with the sensors.

. . . . . . . . . . . . . . . . . . . . .

OFF ON

Energues the

reversing continuously

theBcooling mode

. . . . . . . . . . . . . . . . . . . . . Energizes the

reversing

continuouslyinthe heating

and

off

events

2 events

modes.

Smart fan “OFF

‘ON’

. . . . . . . . . . . . . . . . . . . Relay

coilisde-energized

the night

min. (on/off)

COM

2 min. (on/off)

event. In all other events, the relay coil is

ener

Unlocked

Locked

Allows for D

operation required on some older

Standard

Add-on

Lennox and McQuay units.

Single stage

Multistage

To replace a dual transformer system, connect the hot

LED #l only

LED #l with filter symbol

lead of the

rated transformer (Tl) to the 24V

LED

only

LED

with fault symbol

terminal. Connect the common to the

Connect the common of the second transformer to the common lead of the

and tape off or wire nut the hot lead of T2.

OUTPUTTERMINAL FUNCTIONS

300-229

OFF ON

4 events

Smart fan “OFF

4 min. (on/off)

Unlocked

Electric

Single stage

LED

only

2 events “ON” 2 min. (on/off) Locked Gas Multistage

LED #2only

. . . . . . . . . . . . . . . . . . .

auxiliary

heat

second

stage

emergency heat

. . . . . . . . . . . . . . . . . . . .

compressor no. 2 on a call for

second stage heating or cooling

auxiliary heat as last stage

first stage emergency heat

. . . . . . . . . . . . . . . . . . . .

compressor no. 1 on a call for

first stage heating or cooling

. . . . . . . . . . . . . . . . . . . . . Fan

energized

with a

call

for

heating

or cooling or by pressing the fan button

. . . . . . . . . . . . . . . . . . . . .

Independent

switching

voltage’

24V

. . . . . . . . . . . . . . . . . .

VAC

hot from

the

. . . . . . . . . . . . .

24 VAC common from the equipment transformer

LED1

. . . . . . . . . . . . . . .

Free

status

LED2

or function indication Use to connect outdoor temperature sensor and/or

remote sensor

Refer

RS+V

to the

included

the sensors

Energizes the reversing continuously

the

mode

. . . . . . . . . . . . . . . . . . . . .

Energizes the

reversing continuously

the

heating and

off

modes

. . . . . . . . . . . . . . . . . . .

Relay

de-energized in the night

COM

event In all other events, the relay

energized.

Allows for DC operation required on some older Lennox and McQuay units.

To replace a dual transformer system, connect the hot

LED

with filter symbol

lead of the higher rated transformer

to the

terminal. Connect the common to the

Connect

LED

with fault symbol

the common of the second transformer to the common

or wire nut the hot lead of T2.

WIRING DIAGRAM

Note 1:

If jumper

removed, a separate

transformer must be used to power the loads.

Note

2: This thermostat may be used with 24 Volt DC. The negative side of the DC supply must be wired to the 24V (C) terminal.

OCC

Common

Transformer

separate

used

WIRING DIAGRAM

Transformer

Line Voltage

Page 7

PLANNING YOUR SCHEDULE

. .

. . 24VAC

supply

cooling

equipment transformer

Y. . . . . . uI . . . .

Energizes the cooling equipment with a call for

cooling

Fan is

energized withacall forCooling of

selected by pressing

Fan button

. . . . . . . . .

Use

to connect Outdoor Temperature Sensor and/or Indoor Remote Options. Refer to the instructions included with the sensors.

Equipment load resistors(proivided) may be required on the Y and G switching circuits if the equipment loads do not draw

amps per circuit minimum.

OFF ON

Connect load resistors at the equipment.

4 minute. (min. on)

2 minute (min. on)

Keypad unlocked

Keypad Locked

THE CURRENT

DAY/TIME

Press the CLOCK button.* The display will flash a day of the week. Press the@

buttons until the current day shows.

Press the CLOCK button again. The display will flash the hour.

(Note the AM/PM indicator). Press the@

buttons until the current hour shows. Press the CLOCK button again. The display will flash the minutes. Press the@

buttons until the current minutes show. Press the CLOCK button and the current day and time are now set.

* Note: If a button is not pushed in 15 seconds, the thermostat will automatically return

to normal operation.

With your specific program determined, you are ready to begin programming. You will now enter the individual program period temperatures

for the heating program.

Press the MODE button until

HEAT is displayed. Press the SET TEMP button.’ The first program period (Morning) will be displayed. Press the@o@buttons to adjust that program periods desired temperature for heating. Repeat Steps 2

3 for the Day, Evening and Night program periods. Remember,

your

thermostat was set-up for 2 program periods, you will only have to repeat Steps 2

3 for the Night program period. Press the MODE button until COOL is displayed. You will now enter the individual program period temperatures for the cooling program. Repeat Steps 2, 3 & 4 for the cooling temperatures. Press the MODE button until your desired mode of operation appears: HEAT-AUTO-OFF-COOL. Press the RESUME button to return to normal operation.

Note: If a button

not pushed in 15 seconds, the thermostat

automatically return to normal operation. You may

back

the

portion

by repeatedly pressing the SET

button

you get back

where you left off

Your new Robertshaw programmable thermostat has been designed so that you can either 2 program periods (Day or Night) or 4 program periods (Morning, Day, Evening or Night; The thermostat comes from the factory set for 4 program periods. To change this setting, please refer to the “2 Events or 4 Events Per Day” section on page 8.

To help save programming time, we suggest you use the worksheet below to set-up your specific program.

Note: If you plan to use the Automatic Changeover Mode, you can not set your heating and cooling temperatures closer than 2 degrees

apart

for the same program period.

Programming Chart

PROGRAM PERIOD

MORNING

DAY

EVENING

NIGHT

HEAT

TEMPERATURES

HEAT:

HEAT

HEAT:

COOL:

COOL.

COOL:

(TIME)

Monday Tuesday Wednesday Thursdav

Saturday

Sunday

SETTING YOUR PROGRAM TIMES

Referring to your Schedule Planner, you will now enter the times for the program periods.

Press the PROGRAM button. The display will flash a day of the week.

2. Press the@

buttons to select the day you wish to program. (We suggest

starting with Monday)

3. Press the PROGRAM button. The display will flash the hour of the first period (Morning). (Note the AM/PM indicator).

Press

buttons to adjust the desired hour for the first program period.

Press the PROGRAM button again. The display

flash the minutes.

Press

to adjust the desired

for the first period. (Note the minutes are in Increments of 10). Repeat Steps 3-6 for the Day, Evening and Night periods. Remember, if your thermostat was set-up for 2 program periods, you will only have to repeat Steps 3-6 for the Night period. After entering the Night period, press the PROGRAM button. “COPY” will be

displayed. The COPY function will allow program times to be copied to sequential days.

If you do not

to copy the program times to another day (or block of days), proceed to Step 11 Press

buttons to select the next individual day, or block of days, to

copy the program times to.

the PROGRAM button to copy the program times to the selected days of the week.

Steps l-10 for any remaining unprogrammed days of the week.

finished, you can verify that all program periods are programmed correctly by repeated pressing the PROGRAM button. When “COPY” appears, press the PROGRAM button to skip to the next day.

Note: If a button is not pushed in 15 seconds, the thermostat will automatically return to normal operation. You

may easily go back into the programming portion simply by repeatedly pressing the PROGRAM button

you

get back to where you left off.

Page 8

TEMPERATURE OVERRIDE

Temporary Override (3 hours)

You

may temporarily change the temperature setting at any time without

affecting the program.

Press

buttons. The current event temperature and mode of operation will be displayed. Press the@o@buttons again to temporarily adjust the temperature. This temperature will be maintained for three hours. To cancel, simply press the RESUME button.

Temporary Override w/keyboard

(1 hour)

You

may temporarily change the temperature setting at any time without

affecting the program, even though the keypad is locked out.

Press

buttons. The display will show the temperature for the first

event. Press

buttons again to temporarily adjust the temperature

degrees. This temperature will be maintained for one hour.

Continuous Override (Hold) You

may also maintain a constant temperature setting at any time without affecting the program.

1. Press and release the

button until the desired mode is displayed

(Heat

Auto

Off

Cool)

2. Press and release the HOLD button. “Hold” will be displayed.

3. Press

buttons to adjust the temperature.

This temperature will be maintained

indefinitely. To cancel, simply press the RESUME button.

Note: If the AUTO mode is used, press the MODE button, then press

buttons to

select a heating setpoint. Press the MODE button, and then press

buttons to

select a cooling setpoint.

TYPICAL RESIDENTIAL SCHEDULE (3000224,300-226,300-230)

PLANNING YOUR SCHEDULE

Settings

AM/PM

HEAT

6:00 AM

8:00 AM

COOL 72

DAY

HEAT

9.00 AM

COOL 85

HEAT

EVENING

330PM

COOL 72

NIGHT

HEAT

10.30 PM

COOL

The first

to do before programming your thermostat

to determine your

own personal

comfort

levels for each day as to temperature and time. Shown above is a

schedule.

On the weekdays, after the temperature has been lowered all night, it would be typical to have the thermostat begin to warm the house at 6:00 AM, if you get up at 700 AM. At 9:00 AM, after everyone has left for the day, the thermostate can be set to lower the temperature to save you energy during the day. Before anyone arrives home in the afternoon, the temperature may again

be increased to provide comfort for you when you return. Finally, at bedtime, the thermostat again lowers the temperature to save you energy all night.

On Saturday and Sunday when everyone is home, the temperature comes up to 68°F at 8:00 AM and stays there all day until lo:30 PM when the temperature sets back to 62°F.

CHANGING FAHRENHEIT

TO CELSIUS

This thermostat is preset to display the temperature in Fahrenheit. You

may

change the display to readout in Celsius. To change from one to the other, simultaneously press buttons. The display will change automatically.

CHANGING 12 HOUR TIME TO 24 HOUR TIME

This thermostat is preset to display the standard 12 hour time format. You may change the display to readout in the 24 hour time format. To change from one to the other, press and release the CLOCK button, then press the MODE button. The display will change automatically.

POWER FAILURES

This Robertshaw thermostat will maintain the program settings

any type of power failure. If power fails, “AC” will be displayed for 30 minutes. After 30 minutes, the display will go blank. If power is restored within the first 30 minutes, the thermostat will resume normal operation.

power is restored after 30 minutes,

AM” will flash, and the thermostat will control to the

night event

until the clock is reset. Once the clock is reset, the thermostat will resume

normal operation.

OUTDOOR TEMPERATURE INDICATOR (OPTIONAL)

If your Robertshaw thermostat has been installed with an outdoor remote sensor, you can view

the outdoor temperature by simply pressing and holding the OUTDOOR button. The thermostat will return to normal operation automatically.

To help save programming time, we suggest you use the worksheet below to set-up your specific program.

It is suggested that you set your desired program times about 1 hour before the time that you actually require your home to reach the set temperature. So, if you get up at 7:00 AM, set the wake up temperature to come on at 6:00 AM.

Note: If you plan to use the Automatic Changeover Mode, you can not set your heating and cooling temperatures closer than 2 degrees apart for the same program period.

Programming Chart

Time

AM/PM

Weekend Time

NIGHT

Page 9

Before you set the current day and time, set the thermostat into the proper time mode by pressing the Daylight Savings Time (DST) button. If the thermostat has been installed during

Daylight Savings Time, press and release the DST button until the clock symbol in the lower right hand corner of the display appears. If the thermostat has been installed during standard

time, press the DST button until the clock symbol disappears.

1. Press the CLOCK button.* The display will flash a day of the week.

2. Press the@

buttons until the current day shows.

3. Press the CLOCK button again. The display will flash the hour.

(Note the

AM/PM indicator).

4. Press the@ or@ buttons until the current hour shows.

5. Press the CLOCK button again. The display will flash the minutes.

6. Press the@ or@ buttons until the current minutes show.

7. Press the CLOCK button and the current day and time are now set. *

Note: If a button is not pushed in 15 seconds, the thermostat will automatically return

to normal operation.

SETTING THE WEEKDAY PROGRAM TIMES AND

HEATING TEMPERATURES

With your specific program determined, you are ready to begin programming. You will now enter

the

times and temperatures for the weekday program period.

Refer to your schedule planner

for the appropriate times and heating temperature.

Press

button until HEAT is displayed.

Press the Program button. MO TU WE TH

FR will be displayed along with the morning

symbol. The starting time will be flashing. Press

buttons to adjust the desired morning start time. (Note AM/PM indicators)

Press the Program button. The display will flash the minutes.

(EXAMPLE:

If the heating temperature has been set at 70’ or higher. If you attempt to set

the cooling temperature closer than two degrees above the heating

temperature, the thermostat will automatically maintain a two degree separation between heating and coolin

thus lowering the heating temperature.

Press the

button to adjust to the desired cooling temperature.

Press the Program button until the day symbol is displayed and the cooling

temperature is flashing.

Press the button to adjust to the desired temperature.

Press the Program button until the evening symbol is displayed and the cooling

temperature is flashing.

8. Press the @ or@ button to adjust to the desired temperature.

Press the Program button until the night symbol is displayed and the cooling

temperature is flashing.

10. Press the@ or@ button to adjust to the desired temperature. 11 Press the resume button.

5. Press the

6. Press the

button to adjust the minutes. (Note the minutes are

increments of 10)

button. The

temperature will be displayed.

Press the

button to adjust to

the

desired heating temperature.

8. Repeat steps 2 through 7 for the day, evening, and night program

If you wish to use

only the

morning and

program periods

holding the program button in the hour or minute

setting and

press the mode button, 4

dashes will appear.

SETTING THE WEEKEND PROGRAM TIMES AND HEATING TEMPERATURES

After the weekday night heating temperature has been entered. Press the Program

button. SAT SUN will be displayed.

2. Repeat steps 2 through 7.

3. After weekend

heating temperature has been entered press the resume button.

(Note if the Resume button is not pressed, the thermostat

start the

program within 15 seconds)

SETTING THE WEEKDAY AND WEEKEND COOLING TEMPERATURES

‘NOTE: Since the programmed time schecules are the same for both heating and cooling, you only

need to set the cooling temperatures providing you have

already programmed the weekday and weekend

schedules.

Press the MODE button until COOL is displayed.

2. Press the Program button. MO TU WE TH FR

be displayed along with the morning

symbol. The

time

be flashing.

3. Press the Program button until the cooling temperature is IMPORTANT NOTE. The cooling temperature must be set at least two degrees higher than

the

temperature.

REVIEWING SCHEDULED TIMES AND TEMPERATURES

review

your programmed schedules, all you have to do is repeatedly press and release the PROGRAM button. Each scheduled event will be displayed starting with the weekday start times and temperatures and ending with the weekend start times and temperatures. To cancel your review, simply press and release the RESUME button or wait 15 seconds for

the

thermostat

to resume automatically.

CHANGING SCHEDULED TIMES AND TEMPERATURES

change any scheduled start time or temperature, press and release

the PROGRAM button until proper symbol flashes, ie. day, hour minute or temp. then use the or button to make the change. Press and release the RESUME button after all schedule changes have been made or wait 15 seconds for the thermostat to resume automatically.

Page 10

SPECIFICATIONS

Rated Voltage . . . . . . . .

20-30

24 nominal

Rated A.C

08 Amps to 1.5 Amps continuous

Current

per output with surges to 4 Amp Max.

Control

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . ..*..........................

Heating:

Steps

Range

to 30°C in

Steps

Cooling:

to 108°F in

Steps

to 40°C in 1

Steps

Thermostat

Measurement Range . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

to 124°F or 0 to 48°C

O.D.T. Displayed

Range . . .

. . . . ...*.....

to 124°F or -48 to 48°C

Control.

at 20°C

Accuracy

Minimum

(between heating and cooling)

Deadband.

NOTE:

This thermostat contains electronic circuitry replacing the conventional Mechanical

anticipator.

IMPORTANT INSTALLER’S NOTE FOR THE

This thermostat is equipped with a transformer wiring fault indicator (located along the top left side of the thermostat.)

If the RED light is ‘on’ when the wiring is complete, you must check the equipment to ensure

that the transformers are wired in accordance with the diagrams provided on this sheet.

NOTE: Continued operation of the thermostat with the red light ‘on’ will damage the thermostat.

Equipment

SINGLE TRANSFORMER

If the fault indicator is ‘on’, the transformer exceeds the allowed 30 Replace the transformer

SPECIFICATIONS

Rated Voltage

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . .

20-30

24 nominal

Rated AC

Current

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Amps to 0.75 Amps continuous

per output with surges to 3 Amp Max.

Rated D.C.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Current

. . . . . . . . . . . . . . . . . . 0 Amps to 0.75 Amps continuous

per output with surges to 3 Amp Max.

Control . . . . . .

Range

Heating:

Steps

to 30°C in

Steps

Cooling:

Steps

to 40°C in

Steps

Thermostat Measurement Range..

to 124°F or 0 to 48°C

O.D.T. Displayed Range

124°F or -48 to 48°C

Control . . Accuracy

Minimum

(between heating and cooling)

or 1

NOTE:

This thermostat contains electronic circuitry replacing the conventional Mechanical

anticipator.

TWO TRANSFORMER SYSTEM Separate RH and RC Wires

TWO TRANSFORMERS With a Single

Wire

If the fault indicator is ‘on’, the transformers are OUT OF PHASE. Switch the secondary wires of one of the transformers (NOT

BOTH) and ensure the RED light goes OFF.

If the fault indicator is ‘on’, the transformers are OUT OF PHASE.

Switch the secondary wires of

one of the transformers (NOT BOTH) and ensure the RED light goes OFF,