Robertshaw 300-224 Technical specifications

Installation and Programming
Instructions for
Deluxe Programmable Thermostats
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TABLE OF CONTENTS
INTRODUCTION...............................................................................................4
STANDARD FEATURES ................................................................................4-6
THERMOSTAT LOCATION ...............................................................................7
REMOVING THE THERMOSTAT FROM THE SUBBASE.................................8
DESCRIPTION OF THE DIP SWITCH FUNCTIONS ...................................9-11
COVER LOCK ................................................................................................12
REPLACING THE THERMOSTAT ON THE SUBBASE...................................12
WIRING DIAGRAMS .................................................................................13-24
PROGRAMMING 7 DAY MODELS ...........................................................26-29
PLANNING YOUR SCHEDULE....................................................................25
SETTING THE CURRENT DAY AND TIME ..................................................26
SETTING YOUR PROGRAM TEMPERATURES ..........................................26
SETTING YOUR PROGRAM TIMES............................................................27
TEMPERATURE OVERRIDE.........................................................................28
CHANGING FAHRENHEIT (°F) TO CELSIUS (°C)........................................29
CHANGING 12 HOUR TIME TO 24 HOUR TIME........................................29
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POWER FAILURES ......................................................................................29
OUTDOOR TEMPERATURE INDICATOR (OPTIONAL)................................29
PROGRAMMING 5/2 DAY MODELS ........................................................30-34
TYPICAL RESIDENTIAL SCHEDULE...........................................................30
PLANNING YOUR SCHEDULE....................................................................31
SETTING THE CURRENT DAY AND TIME ..................................................32
SETTING THE WEEKDAY PROGRAM TIMES AND HEATING TEMPERATURES......32-33
SETTING THE WEEKEND PROGRAM TIMES AND HEATING TEMPERATURES............33
SETTING THE WEEKDAY AND WEEKEND COOLING TEMPERATURES ..........33-34
REVIEWING SCHEDULED TIMES AND TEMPERATURES............................35
CHANGING SCHEDULED TIMES AND TEMPERATURES ............................35
SPECIFICATIONS .....................................................................................36-37
IMPORTANT INSTALLER’S NOTE ............................................................38-39
IMPORTANT: Read this manual thoroughly to understand all
the features of your deluxe programmable thermostat.
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INTRODUCTION
The Deluxe Programmable Thermostat represents the most advanced solid-state, microcomput-
er temperature control on the market today. The thermostat incorporates state-of-the-art tech-
nology packaged in an extremely low profile designer series case. Ultra-Touch controls are com-
bined with an 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 24 hour clock display
• Selectable Fahrenheit or Celsius temperature display
• Lockable access cover
• Full function liquid crystal display (LCD)
*No Auto Changeover on 300-204, 205, 206, or 230
4
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FOR MODELS 300-224, 226, 230
5
Clock
DST
Program
Hold
Outdoor
Mode
Fan
Resume
Press to set the
real time day,
hour and minute
Press to display the
outdoor temperature
(optional)
Press to select
heat/cool/auto/off.
The word is displayed
for 5 seconds.
(Emergency heat for
300-226)
Select for continuous
fan or auto fan
Press to exit the hold
or override program,
or when programming
is complete
Press to change from
Standard Time to
Daylight Saving Time
Press to set program
temperatures and
start times
Press to hold the current
setting. The program
will hold indefinitely or
until RESUME is
pressed
To lower
the setpoint
Press ▲and ▼at the same time to change
the temperature from Celsius to Fahrenheit
To raise
the setpoint
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FOR MODELS 300-225, 227, 229
6
Clock
Set Temp
Program
Hold
Outdoor
Mode
Fan
Resume
Th AM
Press to set the
real time day,
hour and minute
Press to display the
outdoor temperature
(Optional)
Press to select
heat/cool/auto/off.
The word is displayed
for 5 seconds.
(Emergency heat for
300-227)
Select for continuous
fan or auto fan
Press to exit the hold
or override program,
or when programming
is complete
Press to set the heating
and 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
To lower
the setpoint
Press ▲and ▼at the same time to change
the temperature from Celsius to Fahrenheit
To raise
the setpoint
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THERMOSTAT LOCATION
To ensure proper operation, the thermostat should be mounted on an inside wall in a frequently
occupied area of the building. In addition, its position must be at least 18" (46 cm) from any out-
side wall, and approximately 5', (1.5 m) above the floor in a location with freely circulating air of
an average temperature.
Be sure to avoid the following locations:
• behind doors or in corners where freely circulating air is unavailable
• where direct sunlight or radiant heat from appliances might affect control operation
• on an outside wall
• adjacent to, or in line with, conditioned air discharge grilles, stairwells or outside doors
• where its operation may be affected by steam or water pipes or warm air stacks in an adja-
cent partition, or by an unheated/uncooled 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
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REMOVING THE THERMOSTAT FROM THE SUBBASE
1. Insert a flat blade screwdriver or coin 1/8"
into the slot located in the bottom center of
the thermostat case and twist 1/4 turn.
When you feel or hear a click, grasp the
case from the bottom two corners and sep-
arate from the subbase as shown in the dia-
gram at the left. Some models require more
force than others when separating due to
the number of terminals used.
2. Swing the thermostat out from the bottom.
3. Lift the thermostat up and off the subbase.
4. Place the rectangular 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 3/16" (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 over tighten!)
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 affecting the thermostat.
8
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DESCRIPTION OF THE DIP SWITCH FUNCTIONS
2 Events or 4 Events Per Day (300-225, 300-227, 300-229)
Your thermostat can be set to either 2 events or 4 events per day.
2 events will allow you to program a Day ✥setting and a Night ✠setting.
4 events will allow you to program Morning ✣, Day ✥, Evening ✤and Night ✠settings.
Smart Fan (300-225, 300-227, 300-229)
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 occu-
pied programs and automatically cycle the fan with a call for heating or cooling during the unoc-
cupied program. NOTE: The unoccupied program is the Night program.
2 Minute or 4 Minute Minimum On Times
Keypad Lock
Place the switch in the locked position to lockout all buttons except the OUTDOOR button.
Plenum Fan Switch (300-224, 300-225, 300-229)
OFF – Fan comes on immediately with heat (used on electric heat).
ON – Fan is controlled by the system (used on gas/oil heat).
Standard/Add-on Heat Pump (300-226, 300-227)
For most heat pump applications, this switch should be left in 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.
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Single or Multistate (300-227, 300-229)
For equipment with a single compressor (2 heat/1 cool for 300-227 or 1 heat/1 cool for 300-
229), switch to single stage. For equipment with two compressors (3 heat/2 cool for 330-227 or
2 heat/2 cool for 300-229), switch to multistage.
LED #1 (300-226, 300-227, 300-229)
Switch ON will energize the LED light pipe at the top of the thermostat plus the filter indicator on
the display. This indicates the filter needs to be changed.
LED #2 (300-226, 300-227, 300-229)
Switch ON will energize the LED light pipe at the top of the thermostat plus the wrench indicator
on the display. This indicates service is required.
FEATURES
Remote Sensor RS1 – RS2 – RS+V
The thermostat is designed to accept the remote sensor (10-528) which will allow you to locate
your thermostat in an area away from view.
LED Auxiliary Heat Indicator (300-226, 300-227)
Your thermostat is equipped with an LED that indicates when the system has engaged auxiliary
heat mode. It is the center (red) LED.
Add-On Heat Pumps (300-226, 300-227)
Your thermostat is equipped to enhance the performance of an add-on heat pump.
In most applications, the thermostat will perform the function of a fossil fuel kit.
To select Add-On, place switch (#3 for 300-226, #5 for 300-227) to the ON position. The ther-
mostat 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.
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Setting the Outdoor High and Low Temperature Balance Points (300-226, 300-227)
When using the optional Robertshaw remote outdoor sensor (Uni-Line #10-529), 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 high balance point, along with the factory setting of 119°F (48°C). Any out-
side temperature above the HibP will lock out the auxiliary heat, any temperature below the
HibP will allow the auxiliary heat to run when called for by the thermostat.
2. Press the ▲ or ▼ buttons to set the HibP temperature. (A typical setting may be 52°F.)
3. Press the OUTDOOR button. LobP will appear in the display meaning low balance point,
along with the factory setting of -54°F (-48°C). 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 the ▲ or ▼ buttons to set the LobP temperature. (A typical setting may be 28°F.)
5. Press the RESUME button.
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COVER LOCK
You also may 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 thermo-
stat and close the cover. The cover now is 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 ther-
mostat 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.
12
R
24V
24V (c)
RS1
RS+V
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WIRING DIAGRAM – 300-224
13
300-224
RH
W
RC
Y
G
4 min. (on/off) 2 min. (on/off)
Unlocked Locked
Electric Gas
1
2
3
Y
G
COOL #1
FAN 24 VAC
Transformer
Line
Voltage
ADD JUMPER
FOR SINGLE
TRANSFORMER
RS2
RS1
RS+V
W
HEAT #1
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OUTPUT TERMINAL FUNCTIONS – 300-224
14
RH ...............24VAC supply from heating
W.................Energizes the heating equipment with a call
for heating
RC ...............24VAC supply from cooling
Y..................Energizes the cooling equipment with a call
for cooling
G..................Fan is energized with a call for heating or
cooling or selected by pressing the FAN
button in heating mode.
RS2..............Use to connect outdoor
RS1 temperature sensor and/or
RS+V indoor remote sensor options. Refer to the
instructions included with the sensors.
Equipment load resistors (provided) may be required on
the W, Y and G switching circuits if the equipment loads
do not draw .080 amps.
Connect load resistors at the equipment.
*See important installer’s note on pages 38 and 39.
300-224 RH
W
RC
Y
G
RS2
RS1
RS+V
4 min. (on/off) 2 min. (on/off)
Unlocked Locked
Electric Gas
1
2
3
4 min. (on/off) 2 min. (on/off)
Unlocked Locked
Electric Gas
1
2
3
OFF ON
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WIRING DIAGRAM – 300-225
15
Note 1: If jumper removed, a sep-
arate transformer must be used to
power the loads.
Note 2: This thermostat may be
used with 24 Volt DC. The nega-
tive side of the DC supply must be
wired to the 24V (C) terminal.
300-225
RS2
RS1
RS+V
W1
Y1
G
R
24V
24V(c)
4 events 2 events
Smart fan OFF ON
4 min. (on/off) 2 min. (on/off)
Unlocked Locked
Electric Gas
1
2
3
4
5
W
Y
G
HEAT STAGE #1
COOLSTAGE#1
FAN
COMMON
24 VAC
Transformer
Line
Voltage
Note 1
{
Note 2
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OUTPUT TERMINAL FUNCTIONS – 300-225
16
W1...............Energizes on a call for first stage heat
Y1................Energizes with a call for cooling
G..................Fan is energized with a call for heating or
selected by pressing the FAN button
R..................Independent switching voltage*
24V ..............24 VAC hot from the equipment transformer
24V(c) ..........24 VAC common from the equipment
transformer
RS2..............Use to connect outdoor temperature
RS1 sensor and/or indoor remote sensor
RS+V options. Refer to the instructions included
with the sensors.
* Allows for DC operation required on some older
Lennox and McQuay units.
To replace a dual transformer system, connect the hot
lead of the higher rated transformer (T1) to the 24V ter-
minal. Connect the common to the 24V(C). Connect the
common of the second transformer to the common lead
of the T1 and tape off or wire nut the hot lead of T2.
300-225
RS2
RS1
RS+V
W1
Y1
G
R
24V
24V(c)
4 events 2 events
Smart fan OFF ON
4 min. (on/off) 2 min. (on/off)
Unlocked Locked
Electric Gas
1
2
3
4
5
4 events 2 events
Smart fan OFF ON
4 min. (on/off) 2 min. (on/off)
Unlocked Locked
Electric Gas
1
2
3
4
5
OFF ON
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300-226
Y1
G24 VAC
Transformer
Line
Voltage
Note 1
LED1
LED2
RS2
RS1
RS+V
W1
W1
Y1
G
R
24V
24V(c)
O
B
4 min. (on/off) 2 min. (on/off)
Unlocked Locked
Standard Add-on
*Not used must be OFF Not used*
Led #1 with filter symbol Led #1 only
Led #2 with fault symbol Led #2 only
2
1
3
4
5
6
O
B
Remove connection if
separate transformer used
WIRING DIAGRAM – 300-226
17
Note 1: If jumper is removed, the R
terminal may be used to accommodate
independent switching circuits.
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.
* Important: Switch #4 must be left in OFF position
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OUTPUT TERMINAL FUNCTIONS – 300-226
18
W1................Auxiliary heat is energized as second stage
heating or emergency heat
Y1.................Compressor is energized with a call for
heating or cooling
G...................Fan is energized with a call for heating or
cooling or selected by pressing the FAN
button
R...................Independent Switching Voltage**
24V...............24 VAC hot from the equipment transformer
24V(c)...........24 VAC common from the equipment
transformer
LED 1...........Free lights for status or function indication
LED 2
RS2 ..............Use to connect outdoor temperature sensor
RS1 and/or indoor remote sensor options. Refer
RS+V to the instructions included with the sensors.
O...................Energizes the reversing continuously in the
cooling mode.
B..................Energizes the reversing continuously in the
heating and off modes.
** Allows for DC operation required on some older
Lennox and McQuay units.
*Not used —must be OFF Not used*
1
2
3
4 min. (on/off) 2 min. (on/off)
Unlocked Locked
Standard Add-on
LED #1 onlyLED #1 with filter symbol
LED #2 onlyLED #2 with fault symbol
4
5
6
300-226
LED1
LED2
RS2
RS1
RS+V
W1
Y1
G
R
24V
24V(c)
O
B
*Not used —must be OFF Not used*
1
2
3
4 min. (on/off) 2 min. (on/off)
Unlocked Locked
Standard Add-on
LED #1 onlyLED #1 with filter symbol
LED #2 onlyLED #2 with fault symbol
4
5
6
OFF ON
* Important: Switch #4 must be left in OFF position
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WIRING DIAGRAM – 300-227
19
Note 1: If jumper is 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.
4 events 2 events
Unlocked Locked
Standard Add-on
1
2
3
4
5
6
7
8
Single stage Multistage
W2
Y2
W1
Y1
G
R
24V
24V(c)
O
B
LED1
LED2
RS2
RS1
RS+V
NO
COM OCC
NC
Smart fan OFF ON
4 min. (on/off) 2 min. (on/off)
LED #1 only LED #1 with filter symbol
LED #2 only LED #2 with fault symbol
4 events 2 events
Unlocked Locked
Standard Add-on
1
2
3
4
5
6
7
8
Single stage Multistage
300-227 W2
Y2
W1
Y1
G
R
24V
24V(c)
O
B
LED1
LED2
RS2
RS1
RS+V
NO
COM OCC
NC 24 VAC
Transformer
Line
Voltage
Note 1 Common
B
O
G
Y1
W1
Y2
W2
Reversing Valve
Remove connection if
separate transformer used
{
Note 2
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OUTPUT TERMINAL FUNCTIONS – 300-227
20
W2.............Energizes auxiliary heat as second stage emergency
heat
Y2..............Energizes compressor #2 on a call for second stage
heating or cooling
W1.............Energizes auxiliary heat as last stage heating or first
stage emergency heat
Y1..............Energizes compressor #1 on a call for first stage heat-
ing or cooling
G...............Fan is energized with a call for heating or cooling or by
pressing the FAN button
R................Independent switching voltage*
24V............24 VAC hot from the equipment transformer
24V(c)........24 VAC common from the equipment transformer
LED1.........Free lights for status
LED2 or function indication
RS2 ...........Use to connect outdoor temperature sensor
RS1 and/or indoor remote sensor options. Refer
RS+V to the instructions included with the sensors.
O...............Energizes the reversing continuously in the cooling
mode
B................Energizes the reversing continuously in the heating and
off modes
NO.............Relay coil is deenergized in the night
COM event. In all other events, the relay coil is
NC energized.
* Allows for DC operation required on some older Lennox and
McQuay units.
To replace a dual transformer system, connect the hot lead of the
higher rated transformer (T1) to the 24V terminal. Connect the
common to the 24V(C). Connect the common of the second trans-
former to the common lead of the T1 and tape off or wire nut the
hot lead of T2.
4 events 2 events
Unlocked Locked
Standard Add-on
Single stage Multistage
4 events 2 events
Unlocked Locked
Standard Add-on
Single stage Multistage
1
2
3
4
5
6
7
8
W2
Y2
W1
Y1
G
R
24V
24V(c)
O
B
LED1
LED2
RS2
RS1
RS+V
NO
COM OCC
NC
Smart fan OFF ON
4 min. (on/off) 2 min.(on/off)
LED #1 only LED #1 with filter symbol
LED #2 only
1
2
3
4
5
6
7
8
300-227
W2
Y2
W1
Y1
G
R
24V
24V(c)
O
B
LED1
LED2
RS2
RS1
RS+V
NO
COM OCC
NC
LED #2 with fault symbol
4 events 2 events
Unlocked Locked
Standard Add-on
Single stage Multistage
4 events 2 events
Unlocked Locked
Standard Add-on
Single stage Multistage
1
2
3
4
5
6
7
8
W
1
Smart fan OFF ON
4 min. (on/off) 2 min. (on/off)
LED #1 only LED #1 with filter symbol
LED #2 only
1
2
3
4
5
6
7
8
W
1
LED #2 with fault symbol
OFF ON
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