Robertshaw 300-206 Owner's Manual
Contents
1. contacts 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 separate from the subbase Some models require more force than others when separating due to the number of terminals used 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 5mm diameter holes at the marked locations use a hammer to tap the nylon anchors in flush to oo the wall surface and fasten subbase using the supplied screws Do not over tighten 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 out2. VAC from heating equipment transformer W ore Energizes the heating equipment with a call for heating RG cece 24 VAC from cooling equipment transformer OV EEE Energizes the cooling equipment with a call for cooling E ee erreer ee Energizes the fan circuit CLK 1 Independent remote clock timer optional for CLK2 alternate setpoints ASZ Use to connect remote temperature sensor s RS1 Refer to the instructions included RS V with the sensors DIP SWITCH OPTIONS Located on the back of the thermostat once the subbase is removed Switch 1 Allows for a 4 minute or 2 minute minimum on off time Switch 2 Allows for the keypad to be locked or unlocked Switch 3 Allows for an immediate fan electric heat or a natural delay for the fan gas oil heat SPECIFICATIONS Rated Voltage 20 30 VAC 24 nominal Rated A C 0 08 Amps to 1 5 Amps continuous Current per output with surges to 4 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 124 F or 48 to 48 C Control Accuracy 0 5 C at 20 C 1 F at 68 F Minimum between heating and cooling Deadband 2 F or 1 C
3. Operating Instructions Digital Heating Cooling Thermostat Your new Robertshaw thermostat has been designed to provide accurate control and display of the room temperature In addition it will also display all relevant information pertaining to your system The clearly marked buttons and informative display make it extremely easy to understand and simple to use Please take a few moments to read the brief instructions and familiarize yourself with the various functions in order to obtain maximum benefit from this truly unique electronic control 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 setpoints 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 and heat or off Fan Press for continuous fan or auto fan Day Night Press to alternate between day and night tem
4. attery is 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 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
5. door remote sensor if used Refer to the installation instructions supplied with each option Also check the position of the DIP switches on the back of the thermostat 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 pre vent unauthorized access to the thermostat by adding the plastic lock included in the installation bag Insert the plastic lock piece into the ie bottom of the mounted base The lol F ends of the lock piece fit snugly iol 2 ANa under the lock pins extending from i A o 5 the bottom of the mounted base o op The tab in the middle of the lock piece extends down from the base To release the locking mechanism press the lock piece up and into the base while gently prying open j D y THERMISTOR MOUNTING INSTRUCTIONS When placing the front THERMISTOR MOUNTING cover on the thermo INSTRUCTIONS stat ensure the ther mistor is not bent or misaligned Ensure that the ther mistor does not touch the thermostat case The thermistor should be placed horizontal to the wall Ensure the ag thermistor is not pushed upward into the case The thermistor should be aligned so it i
6. perature setpoints USER CONTROLS MODE Select the desired mode of operation by repeatedly pressing the MODE button COOLING Controls the cooling system only Select the temperature you want while in the cooling mode by pressing and holding the A or V buttons The word COOL and the temperature setting is displayed for 5 seconds HEATING 0 Controls the heating system only Select the temperature you want while in the heating mode by pressing and holding the A or Y buttons The word HEAT and the temperature setting is displayed for 5 seconds FAN The fan will come on automatically when the system is operating To select continuous fan operation press the FAN button and the display will show This is recommended for electronic air cleaners and continuous ventilation requirements OFF To turn off the heating or cooling system press the MODE button until the word OFF appears on the LCD Avoid using the OFF mode during extremely cold weather to prevent damage to the equipment from freezing 111 135B Model 300 206 USER CONTROLS cont LIMITED OVERRIDE When the keyboard is locked switch 2 LOCKED the user may override the temperature setpoint for 1 hour by pressing either the VY or A button The range of temperature override is 3 F or 3 C from the programmed daytime setpoint OUTDOOR BUTTON If your thermostat has been installed with an electronic outdoor remote sensor Uni Line Part 529
7. s visible between the ribs on the bottom of the subbase IMPORTANT When placing the front cover on the thermostat ensure that the thermistor is not bent or misaligned in any way DETAIL 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 Q Ji f 9900999909 ARAAALAA Outside rear view with backplate closed WIRING DIAGRAMS SINGLE TRANSFORMER Add jumper for single transformer Line Voltage 7 HEAT STAGE 1 Q COOL STAGE 1 FAN CO l 24 VAC cLK1 Q Transformer c k2 OA TWO TRANSFORMERS 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 Single RH RC Wire Heating Equipment Transformer Voltage RC Y G Voltage Cooling Equipment Transformer Separate RH and RC Wires Equipment Transformers 300 206 TERMINAL DESIGNATIONS RH seceecccsnns 24
8. 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 amp DAY NIGHT BUTTON When the thermostat is installed initially the display will show the lt Q symbol for your day temperature By pressing the DAY NIGHT button you may select an alternate setback 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 V 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 sen sor Uni Line Part 528 which will allow you to locate your ther mostat in an area away from view CLOCK TERMINALS OPTION CLK1 CLK2 Your thermostat is equipped with remote clock terminals By connecting a remote clock timer the thermostat can be alternat ed between the day and night Setback temperature setpoints automatically TEMPERATURE ACCURACY Full temperature accuracy will only be realized after the thermo stat has been installed and powered for at least one 1 hour POWER FAILURES Your thermostat employs the latest in solid state electronic technology One of the unique features of your thermostat is that no b
Download Pdf Manuals
Related Search