White Rodgers 1F86-241 Thermostat User Manual
Contents
1. 2 Press O to adjustthermostat setting above room tempera ture The heating system should begin to operate 3 Press O to adjust temperature setting below room tem perature The heating system should stop operating Cooling System To prevent compressor and or property damage ifthe outdoor temperature is below 50 F DO NOT operate the cooling system 1 Move SYSTEM switch to COOL position JUMPER WIRE THERMOSTAT SYSTEM Heating System Neutral TRANSFORMER Figure 2 Typical wiring diagram for heat only 3 wire single transformer systems with common connection required JUMPER WIRE Cooling System TRANSFORMER Figure 3 Typical wiring diagram for cool only 3 wire single transformer systems with common connection required RED jumper wire provided with thermostat must be connected between thermostat RH and RC terminals n la Ri JUMPER for proper thermostat operation with this system TRANSFORMER Figure 4 Typical wiring diagram for heat cool 4 wire single transformer systems with common connection required HEATING TRANSFORMER COOLING TRANSFORMER Figure 5 Typical wiring diagram for heat cool 5 wire two transformer systems with common connection required CHO Valve JUMPER JUMPER WIRE WIRE 120 VAC Reversing valve is energized when the Neutral system switch is in the COOL position TRANSFORMER Figure 6 Typical wiring diagram for heat pump w2. COOL There can be upto a5 minute compressor lock out time delay before the thermostat clicks in COOL Blank Display A blank digital display usually indicates loss of power to the thermostat from the heating and cooling system or indicates the thermostat has received a voltage spike or static discharge see Reset Operation The thermostat must have 24 volts constantly supplied to terminals RC RH and C A blown fuse or tripped breaker could cause a power loss Also many furnaces contain safety or limit devices that can disconnect the power to the thermostat intermittently Reset Operation If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the thermo stat by pressing and move the SYSTEM switch from OFF to HEAT at the same time This also resets the factory defaults to the configuration menu If the thermostat has power has been reset and still does not function correctly contact your heating cooling service person or place of purchase
3. Hz or D C 0 05 to 1 0 Amps Load per terminal 1 5 Amps Maximum Total Load All terminals combined THERMAL DATA Setpoint Temperature Range 45 F to 90 F 7 C to 32 C Operating Ambient Temperature Range 32 F to 105 F Operating Humidity Range 0 to 90 RH non condensing Shipping Temperature Range 4 F to 150 F WHITE RODGERS DIVISION EMERSON ELECTRIC CO 9797 REAVIS ROAD ST LOUIS MISSOURI 63123 5398 Printed in U S A DESCRIPTION e Backlit display LCD continuously displays set point and room temperature F C convertibility Temperature range 45 to 90 F RC RH C W Y G O and B terminals B and O terminals for single stage heat pumps no auxiliary heat or damper operation Set point storage in case of power loss e e e e PRECAUTIONS Do not use on circuits exceeding specified voltage Higher voltage will damage control and could cause shock or fire hazard Do not short out terminals on gas valve or primary control to test Short or incorrect wiring will damage thermostat and could cause personal injury and or property damage Thermostat installation and all components of the system shall conform to Class Il circuits per the NEC code SPECIFICATIONS APPLICATIONS For use with Standard heat cool or heat only systems Electric heat systems Gas or oil fired systems Gas systems with intermittent ignition devices I 1 D and or vent dampers e
4. M switch is in the COOL position Snowflake is displayed flashing if the thermostat is in lockout mode to prevent the compressor from cycling too quickly Displays current time and temperature Displays set point temperature this is blank when SYS TEM switch is in the OFF position CONFIGURATION MENU The configuration menu allows you to set certain thermostat operating characteristics to your system or personal require ments Move SYSTEM switch to the OFF position then press G and at the same time to enter the configuration menu The display will show the first item in the configuration menu The configuration menu chart below summarizes the configura tion options An explanation of each option follows Press O and O to change to the next menu item To exitthe menu and return to the program operation move the SYSTEM switch to HEAT or COOL If no keys are pressed within fifteen minutes the thermostat will revert to normal operation 2 Select FA or SL Fast or Slow Heating Cycle Rate The FA setting is frequently used for gas oil or electric heat The SL setting produces a longer heating cycle which is nor mally for hot water or steam hydronic systems Both settings produce very accurate temperature control and can be set to your personal preference FA cycles the system just under 1 F and the SL setting cycles at approxi mately 1 5 F 3 Select Display Backlight d L OFF or ON The display backlig
5. WHITE RODGERS 1F86 241 Non Programmable Electronic Digital Thermostat INSTALLATION AND OPERATION INSTRUCTIONS Operator Save these instructions for future use FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND OR PROPERTY DAMAGE Your new White Rodgers Digital Thermostat uses the technol ogy of a solid state microcomputer to provide precise time temperature control This thermostat offers you the flexibility to design heating and cooling programs that fit your needs Features 24 Volt System powered Simultaneous heat and cool set point storage Pre set temperature control This thermostat is intended for use with a low voltage system do not use this thermostat with a line voltage system If in doubt about whether your wiring is millivolt line or low voltage have itinspected by a qualified heating and air conditioning contractor or electrician Do not exceed the specification ratings All wiring must conform to local and national electrical codes and ordinances This control is a precision instrument and should be handled carefully Rough handling or distorting components could cause the control to malfunction To prevent electrical shock and or equipment dam age disconnect electric power to system at main fuse or circuit breaker box until installation is complete ELECTRICAL DATA Electrical Rating 18 to 30 VAC 50 60
6. _ Hydronic hot water or steam systems e Single stage heat pump systems no auxiliary heat DO NOT USE WITH e Millivolt systems e Multi stage systems e Systems exceeding 30 VAC and 1 5 amps e 3 wire zoned hydronic heating systems PART NO 37 6165B Replaces 37 6165A 0105 INSTALLATION REMOVE OLD THERMOSTAT 1 Shut off electricity at the main fuse box until installation is complete Ensure that electrical power is disconnected 2 Remove the front cover of the old thermostat With wires still attached remove wall plate from the wall If the old thermostat has a wall mounting plate remove the thermostat and the wall mounting plate as an assembly 3 Identify each wire attached to the old thermostat using the labels enclosed with the new thermostat 4 Disconnect the wires from old thermostat one at a time DO NOT LET WIRES FALL BACK INTO THE WALL 5 Install new thermostat using the following procedures ATTENTION This product does not contain mercury However this product may replace a unit which contains mercury Do not open mercury cells If a cell becomes damaged do not touch any spilled mercury Wearing nonabsorbent gloves take up the spilled mercury and place into a container which can be sealed If a cell becomes damaged the unit should be dis carded Mercury must not be discarded in household trash When the unit this product is replacing is to be discarded place in a suitable container and return to Wh
7. adjust until level and then tighten screws Leveling is for appearance only and will not affect thermostat operation If you are using existing mounting holes or if holes drilled are too large and do not allow you to tighten base snugly use plastic screw anchors to secure subbase Screw anchors Mounting holes Electric Gas switch Mounting holes Figure 1 Thermostat Base 6 Push excess wire into wall and plug hole with a fire resistant material such as fiberglass insulation to prevent drafts from affecting thermostat operation HYDRONIC HOT WATER OR STEAM HEATING SYSTEMS This thermostat is set to operate properly with a forced air heating system If you have a hydronic heating system a system that heats with hot water or steam you must set the thermostat to operate properly with your system Change the second option in the configuration menu to SL see CONFIGURATION MENU page 4 CHECK THERMOSTAT OPERATION If at any time during testing your system does not operate properly contact a qualified service person Turn on power to the system Fan Operation If your system does not have a G terminal connection skip to Heating System 1 Move fan switch to ON position The blower should begin to operate 2 Move fan switch to AUTO position The blower should stop immediately Heating System 1 Move SYSTEM switch to HEAT position If the heating system has a standing pilot be sure to light it
8. ht improves display contrast in low lighting condi tions Selecting backlight ON will keep the light on continu ously Selecting OFF will keep the light off 4 Select Compressor Lockout LOC OFF or ON Select ing LOC ON will cause the thermostat to wait 5 minutes before turning on the compressor ifthe heating and cooling system loses power It will also wait 5 minutes minimum between cooling cycles This is intended to help protect the compressor from short cycling Some newer compressors already have a time delay built in and do not require this feature Your compressor manufacturer can tell you if the feature is already present in their system When the compressor time delay occurs it will flash the snowflake icon for about five minutes then turn on the compressor 5 Select Temperature Display Adjustment 4 LO to 4 Hl Allows you to adjust the room temperature display 4 higher or lower Your thermostat was accurately calibrated at the factory but you have the option to change the display temperature to match your previous thermostat 6 Select Temperature Display F or C Changes the display readout to Centigrade or Fahrenheit as required OPERATING FEATURES Now that you are familiar with the thermostat buttons and display read the following information to learn about the many features of the thermostat SIMULTANEOUS HEATING COOLING PROGRAM STORAGE You can enter both your heating and cooling set points at the sa
9. ite Rodgers at 9797 Reavis Road St Louis MO 63123 5398 for proper disposal ELECTRIC HEAT OR SINGLE STAGE HEAT PUMP SYSTEMS Read entire paragraph before setting electric heat switch If you are unsure of your application contact a qualified service person If you have a single stage heat pump system OR your system uses central electric heat where the blower is energized by a separate circuit through the fan relay meaning that the fan turns on immediately on call for heat then the switch on the thermostat base must be moved to the ELECTRIC position see fig 1 If the thermostat is energizing electric heat sequenc ers the switch MUST remain in the GAS position If you must move the switch to the ELECTRIC position to the left use a small screwdriver or pencil ATTACH THERMOSTAT BASE TO WALL 1 Remove the packing material from the thermostat Gently pull the cover straight off the base Forcing or prying on the thermostat will cause damage to the unit If necessary move the electric heat switch see ELECTRIC HEAT SYSTEMS above 2 Connect wires beneath terminal screws on base using appropriate wiring schematic see figs 2 through 7 3 Place base over hole in wall and mark mounting hole locations on wall using base as a template 4 Move base out of the way Drill mounting holes 5 Fasten base loosely to wall as shown in fig 1 using two mounting screws Place a level against bottom of base
10. ith reversing valve energized in COOL with common connection required JUMPER JUMPER WIRE WIRE Reversing valve is energized when the system switch is in the HEAT position TRANSFORMER Figure 7 Typical wiring diagram for heat pump with reversing valve energized in HEAT with common connection required 2 Press Dto adjust thermostat setting below room tempera ture The blower should come on immediately on high speed followed by cold air circulation Before you begin using your thermostat you should be familiar with its features and with the display and the location and operation of the thermostat buttons Your thermostat consists of two parts the thermostat cover and the base To remove the cover pull it straight out from the base To replace the cover line up the cover with the base and press until the cover snaps onto the base The Thermostat Buttons and Switches Raises temperature setting O Lowers temperature setting 3 FAN switch ON AUTO 4 SYSTEM switch COOL OFF HEAT 3 Press O to adjust temperature setting above room tem perature The cooling system should stop operating OPERATION FAN SYSTEM ON AUTO COOL OFF HEAT I 1 C aee TI ia Lint oa Zu Figure 8 Thermostat display buttons and switches The Display Flame icon is displayed when the SYSTEM switch is in the HEAT position Snowflake icon is displayed non flashing when the SYSTE
11. me time There is no need to change the thermostat at the beginning of each season CONFIGURATION MENU Allows you to customize certain thermostat options SETTING THE THERMOSTAT This thermostat is very easy to operate Set the SYSTEM switch to either HEAT or COOL then press or until the temperature you want to maintain is shown on the right side of the display If you want to turn the system off just move the SYSTEM switch to OFF The FAN switch controls the fan operation When the FAN switch is set to AUTO the fan will cycle with the furnace or air conditioner When the FAN switch is set to ON the fan will run continuously regardles of SYSTEM switch position Configuration Menu 1 Set SYSTEM switch to OFF and Set SYSTEM switch to HEAT or COOL Press and to advance to next item COMMENTS Select FA or SL Fast or Slow heating cycle rate OFF Select display backlight OFF or ON Returns to normal operation TROUBLESHOOTING No Heating With the SYSTEM switch set to HEAT when the setpoint temperature is raised or lowered past the room temperature the thermostat will make a soft click sound Usually the sound indicates the thermostat is operating correctly If the system does not come on check the system or contact your heating cooling service person If the thermostat does not click try the Reset Operation listed below No Cooling Same procedure as heating except set SYSTEM switch to
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