Robertshaw 300-208 Owner's Manual
Contents
1. m gt aos ASAAAD Outside rear view with backplate closed the thermostat To remove jumper labeled JP1 from the printed circuit board pull straight out e This thermostat may be used with 24 Volt DC The negative side of the DC supply must be wired to the 24V c terminal TERMINAL DESIGNATIONS 1g Rares Auxiliary heat is energized as back up or emergency heat VA eters Compressor is energized with a call for heating or cooling E PE Fan operates with a call for heating or cooling or by pressing the FAN button p E Independent switching voltage 24N nassasnnnnnn 24 VAC hot and common to power the thermostat 24V c O EP Energizes the reversing valve continuously in COOL mode eee Energizes the reversing valve continuously in HEAT or OFF modes RS2 auaannsn Use to connect up to 6 indoor and or 1 outdoor RS fanina remote sensor s RS V When connected the thermostat will automatically use the indoor temperature sensor and not its own Refer to the instructions included with the sensor LEDT ceoisiss Free lights for status or function indication LED2 CLK1 Use with dry contact relay or remote clock timer for CLK2 alternate setpoints Allows for DC operation required on some older Lennox and McQuay units2. F or 1 C NOTE This thermostat contains electronic circuitry replacing the conven tional mechanical anticipator One 1 Year Limited Warranty The manufacturer warrants to the original purchaser that its product and component parts will be free from defects in workmanship and materials for a period of one 1 year from the date of purchase Return to the original point of purchase for replacement of your product Warranty Limitations This warranty begins at date of purchase Warranty is Void if The date code is defaced or removed The product has a defect or damage due to product alteration connection to an improper electrical supply shipping and han dling accident fire flood lightning or other conditions beyond the control of the manufacturer The product is not installed according to the manufacturer s instructions and specifications The product has been installed near sources of electromagnet ic interference EMI such as arcing relay contact Owner s Responsibility Provide proof of purchase Provide normal care and maintenance Pay for freight labor and travel Pay for service calls related to product installation Return any defective product In no event shall the manufacturer be liable for incidental or consequential damages This warranty gives you specific legal rights and you may have others which vary by state and or province For example some states and or provinces do not allow the exclusio
3. on the back of the thermostat INSTALLATION INSTRUCTIONS CONT REPLACING THE THERMO STAT ON SUBBASE 1 Position the thermostat on the hinged tabs at the top of the subbase 2 Gently swing the thermostat down and press on the bottom center until it snaps into place THERMOSTAT COVER LOCK You may lock the cover down to prevent unauthorized access to the thermostat by adding the clear plastic lock included in the installation bag Insert the plastic lock piece into the bottom of the mounted base The ends of the lock piece fit snugly under the lock pins extending from the bot tom of the mounted base The tab in the middle of the lock piece extends down from the base To release the locking mecha nism press the lock piece up and into the base while gently prying open 9 aa POCSSOCCSEBOCG LEERY D TA IR Y A NT U O A AT UAC UN Ry 1 a w iS x WIRING DIAGRAM CAUTION Power is supplied through the thermostat to the remote devices DO NOT connect any other 24V source to the remote devices 300 208 New For Release 3 R 24v Jumper replaced with a connector shunt el l Remove if thermostat power is not supplied by equipment LED 7 LED2 CLK1 w1 CLK2 Y1 RS2 G RS1 R RS v SS 24v 24v c O Notes about the
4. wiring diagram e The Wiring Diagram shows how the R and 24V terminals are connected when the shunt is in place and the thermostat and subbase are snapped together The dotted lines show the factory supplied internal connections e f the 24V c is not available from the equipment the shunt may be removed and a separate 24V transformer must then be used to power THERMISTOR MOUNTING INSTRUCTIONS When placing the front cover on the thermostat ensure the thermistor is not bent or misaligned Ensure that the thermistor does not touch the thermostat case The thermistor should be placed horizontal to the wall Ensure the thermistor is not pushed upward into the case The thermistor should be aligned so it is visible between the ribs on the bottom of the subbase THERMISTOR MOUNTING INSTRUCTIONS IMPORTANT When placing the front cover on the thermostat ensure that the thermistor is not bent or misaligned in any way DETAIL GY IMPORTANT Ensure that the thermistor does not touch the thermostat case The thermistor should be placed horizontal to the wall Ensure the thermistor is not pushed upward into the thermostat case The thermistor should be aligned such that it is visible between the ribs on the bottom of the backplate y ALS
5. DESCRIPTION OF ICONS Heat Icon Two amp I Outdoor Flickering lines u when heat is on AN dl Morning Evening Cool Icon D Day Night Icons e Temperature Icon Flickers when the cooling is on Temporary Temperature A Keypad Locked Override Icon Icon i j i Fan Daylight Savings 2 Filter a 1H Time Icon s Icon fe Icon Days Of Mo Tu We Th Fr Sa Su TE eek Wrench or Fault Icon 4 T T Displays indoor or heat mode is selected and WENN E outdoor temperature when the heating set point a Displayed when setpoints are is changed showing 5 second display when 5 second display when cool mode is selected and when the cooling setpoint T a is changed LCD ILI 5 second display when Progressive 0 the auto mode is selected E Recovery O Flashes h Displayed when in the when active Fane Oma off mode Mo Tu We Th Fr Sa Su Displayed when in the ag Indicates ot a a AM Location Of Icons On l communication Dah Dah ha Gai Normally displays the for DSL 520P age D a current time only G of pm Displays programming 7 times in program mode K H emergency heat mode at a I ow Display icons vary according to the model Your thermostat may not display all of the icons shown Outdoor Hi amp Lo Temperature Balance Points Heat Pump Only With the optional Electronic Outdoor Temperature sensor you can select the outdoor balance points to inhibit the auxiliary heat
6. and or compressor HibP Press and hold the OUTDOOR button then press the MODE button HibP will appear on the display Raise or lower the HibP by pressing the V or A button to set the temperature above which the Auxiliary heat is locked out Press the outdoor button while showing the HibP and the thermostat will switch to show LobP LobP is used to lock out the compressor Outdoor temper atures below the LobP will lock out the compressor The factory HibP and LobP setpoints are 48 C and 48 C DIP SWITCH OPTIONS AND FUNCTIONS Positioning the DIP switches in either the ON or OFF position enables you to choose between two different options The DIP switches are located on the interior of your thermostat and may be accessed by following the procedure for removing the thermo stat from the subbase The following list describes your DIP switch options DIP Switch No DIP Switch OFF DIP Switch ON Normal Add on Not used OFF position Not used 4 minute minimum ON 2 minute minimum ON Keypad unlock Keypad lock Economy Comfort Not used OFF position Not used LED 1 No icon LED 1 lt Filter icon LED 2 No icon LED 2 Fault icon 1 Normal or Add On Heat Pump In the NORMAL position the ther mostat will allow the compressor and the auxiliary heat to be on at the same time In the ADD ON position the compressor is turned off with a call for auxiliary heat Not Used This switch must remain in the OFF position 2 Min
7. cons appear on the LCD The thermostat will energize the heating or cooling system based on the temperatures established for both modes USER CONTROLS CONT OUTDOOR ODT BUTTON If your thermostat has been installed with an electronic outdoor remote sensor Uni Line Part 10 529 you may view the outdoor temperature simply by pressing the OUTDOOR button Upon releasing the button the thermostat will once again display the indoor temperature If the option is not connected the thermostat will display DAY NIGHT BUTTON When the thermostat is initially installed the display will show the lt O symbol for your day temperature By pressing the DAY NIGHT button you may select an alternate or night temperature the thermostat will remember this setpoint Simply press the DAY NIGHT button to alternate between temperature settings CELSIUS FAHRENHEIT Simultaneously press A and to switch between Celsius C and Fahrenheit F temperature display REMOTE SENSOR OPTION RS1 RS2 RS V The thermostat is designed to accept the electronic remote sensor Uni Line Part 10 528 which will allow you to locate your thermostat in an area away from view Indoor and outdoor sen sors are available separately CLOCK TERMINALS OPTION CLK1 CLK2 Your thermostat is equipped with a dry contact closure input By connecting to any relay based controller or clock timer DSP AT or equivalent the thermostat can be alterna
8. g and holding the A or Y buttons The control setpoint temperature is displayed Your new electronic digital thermostat has been designed to provide accu rate control and display of room temperature It will also display all relevant information of the system FAN The fan will come on automatically when the system is operating but there is no indication of this on the display To select continu ous fan operation press the FAN button and the display will show This is recommended for electronic air cleaners and continuous ventilation requirements TEMPORARY TEMPERATURE OVERRIDE WITH KEYPAD LOCKED The keypad may be locked to prevent tampering by selecting the ON position of DIP switch 4 If the keypad is locked to prevent tampering you may still tem porarily adjust the setpoint by 3 F or 3 C of the pro grammed day setpoint Press the A or V button to raise or lower the setpoint for a 1 hour period OFF MODE To turn off the heating or cooling system press the MODE button until the word OFF appears on the LCD It will remain displayed until the mode is changed The OFF mode prevents the system from being energized Avoid using the OFF mode during extremely cold weather to pre vent damage to the equipment from freezing AUTO CHANGEOVER MODE Q You may set the thermostat to automatically switch from HEAT ING to COOLING mode by pressing the MODE button until the word AUTO and both the heating and cooling i
9. is restored the thermostat will continue operating as if the power had never been off INSTALLATION INSTRUCTIONS CAUTION THIS DEVICE SHOULD BE INSTALLED BY A QUALIFIED TECHNICIAN WITH DUE REGARD FOR SAFETY AS IMPROPER INSTALLATION COULD RESULT IN A HAZARDOUS CONDITION 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 46cm from any outside wall and approximately 5 1 5m above the floor in a location with freely circulating air of an average temperature You should 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 adjacent partition space or by an area behind the thermostat which is not climate controlled where its operation will be affected by the supply air of an adja cent climate control HVAC device and near sources of electrical interference such as arcing relay contacts REMOVING THE THERMOSTAT FROM THE SUBBASE Insert a flat blade screwdriver or a coin 1 8 into the slot locat ed in the bottom center of the ther
10. mostat case and twist 1 4 turn When you feel or hear a click grasp the case from the bottom two corners and separate from the subbase Some models require more force than others when separating due to the number of terminals on the subbase 2 Swing the thermostat out from the bottom Lift the thermostat up and off the subbase 4 Place the rectangular opening in the subbase over the equip ment control wires protruding from the wall and using the sub base as a template mark the location of the two mounting holes exact vertical mounting is necessary only for appear ance 5 Use the supplied anchors and screws for mounting on drywall or plaster drill two 3 16 65mm diameter holes at the marked locations use a hammer to tap the nylon anchors in flush to oh ee the wall surface and fasten subbase using the supplied screws Do not overtighten 6 Connect the wires from your system to the thermostat termi nals 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 7 Before the thermostat is reinstalled on the subbase install the optional clock timer indoor remote sensor and outdoor remote sensor if used Refer to the installation instructions supplied with each option Also check the position of the DIP switches
11. n or limitation of incidental or consequential damages so this exclusion may not apply to you The manufacturer s continuing commitment to quality products may require a change in specifications without notice This equipment if installed in strict accordance with the manu facturer s instructions complies with the limits for a Class B computing device pursuant to Subpart J of Part 15 of FCC rules Operating Instructions Single Compressor Heatpump with Auxiliary Heat Non Programmable Thermostat NEW amp IMPROVED FEATURES Your new electronic thermostat has been made even better by the introduction of several new and improved features Building on its reputation for efficient and dependable operation your thermostat now offers the following list of enhancements Thermostat and Sensor Calibration Release 3 provides easy calibration of the thermostat and remote sensors Simply press and hold the FAN button for 10 seconds and adjust with the A or V buttons Push Button Auto Repeat Programming is easier with the push button auto repeat feature GENERAL INFORMATION The thermostat normally displays room temperature mode of operation and whether cooling or heating is currently on The six buttons on the front of the unit allow complete control of your equipment You may select different heating and cooling setpoints for the system to maintain e g 70 in heating and 75 in cooling Raising or lowering the setpoin
12. ted between the DAY NIGHT setback temperature setpoints automatically Upon initial power up of the thermostat or after a power failure the ther mostat will check the clock terminals and apply the DAY open con tact or NIGHT closed contact temperature setpoints accordingly ECONOMY COMFORT In the ECONOMY mode switch 5 OFF your thermostat will not allow the equipment to be forced on with a change to the temper ature setpoint In the COMFORT mode the equipment will turn on immediately with a change to the temperature setpoint TEMPERATURE ACCURACY Full temperature accuracy will only be realized after the thermo stat has been installed and powered for at least one 1 hour ADD ON HEAT PUMPS Your DSL thermostat is equipped to enhance the performance of an add on heat pump Your thermostat in most applications will perform the function of a fossil fuel kit To select Add On place switch 1 to the ON position The ther mostat will turn the compressor off with a call for auxiliary heat When the switch is set to NORMAL the thermostat will allow the compressor and the auxiliary heat to be on at the same time POWER FAILURES Your thermostat employs the latest in solid state electronic technology One of the unique features of your thermostat is that there is no battery required to maintain your selected setpoints in the event of a power loss as the memory is unaffected by power failures of any duration When power
13. ts in heating or cooling is as sim ple as pushing a button In addition you may choose to display the temperature in F or C The thermostat also allows you to select continuous fan operation useful when using an air cleaner or have the fan come on with the equipment BUTTON FUNCTIONS Outdoor Press to display the outdoor temperature optional Mode Press to select cool only heat only auto cool amp heat off or emergency heat Fan Press for continuous fan or auto fan Day Night Press to alternate between day and night temperature setpoints 111 110B Model 300 208 USER CONTROLS MODE Select the desired mode of operation by repeated pressing of the MODE button Indicates cooling system only the word COOL is displayed for 5 seconds Indicates heating system only the word HEAT is displayed for 5 seconds Indicates both the heating amp cooling systems the word AUTO is displayed for 5 seconds Blinking indicates cool ON Q Flickering indicates heat ON OFF Disables controller so equipment will not operate fan operation is still possible in this mode Eht Emergency heat COOLING 3 Select the temperature you want your equipment to maintain while in the COOLING mode by pressing and holding the A or V but tons The control setpoint temperature is displayed for 5 seconds HEATING Q Select the temperature you want your equipment to maintain while in the HEATING mode by pressin
14. ute or 4 Minute ON Times This option allows you to run the equipment for either a 2 or 4 minute minimum off and on time Keypad Lock In the ON position locks out all buttons except the OUTDOOR temperature button Economy Comfort In the OFF position the thermostat will be in ECONOMY mode In the ON position the thermostat will be in COMFORT mode 6 Not Used This switch must remain in the OFF position CONOOSH oP a A WN 7 LED 1 Indication In the OFF position LED 1 will light when the terminal is energized In the ON position LED 1 will light and a Filter lt icon will be displayed on the LCD when the terminal is energized 8 LED 2 Indication In the OFF position LED 2 will light when the terminal is energized In the ON position LED 2 will light and a Fault gt icon will be displayed on the LCD when the terminal is energized SPECIFICATIONS Rated Voltage 20 30 VAC 24 nominal Rated A C 0 050 Amps to 0 75 Amps continuous Current per output with surges to 3 Amps Max Rated D C 0 Amps to 0 75 Amps continuous Current per output with surges to 3 Amps Max Control Heating 38 to 88 F in 1 Steps Range 5 to 30 C in 1 Steps Cooling 60 to 108 F in 1 Steps 16 to 40 C in 1 Steps Thermostat Measurement Range 28 to 124 F or 0 to 48 C O D T Displayed Range 50 to 119 F or 48 to 47 C Control Accuracy 0 5 C at 20 C 1 F at 68 F Minimum between heating and cooling Deadband 2
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