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
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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.
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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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