Bosch 2400E User's Manual
Contents
1. Bosch Remote Control for GWH 635 ES ESO 250SX 250SXO 2400E 2400EO 6 720 606 990 07 01 JS BOSCH Contents Contents 1 Declaration of conformity FCC 3 2 Remote control data 4 3 Parts supplied 4 4 Using the remote control 4 4 1 Description of the LCD 4 4 2 Remote control transceiver PCB installation 5 4 3 Remote control activation 7 4 3 1 AF board 7 4 3 2 SU board 8 4 4 Hot water temperature adjustment by remote control 9 4 5 Program button on the remote control 4 6 Priority function 10 4 7 Error messages 11 5 Troubleshooting 12 5 1 Replacing batteries 12 5 2 Cleaning 12 5 3 Troubleshooting 12 6 Notes 15 6 720 606 990 Safety instructions Safety instructions gt Read the following instructions very carefully to ensure correct operation gt Follow safety instructions Caution Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Caution the remo te control is waterproof and can also be used in the shower 7 Ne vertheless you should ensure it is not immersed in water for instance in the bathtub 1 Declaration of con formity FCC This device meets the requirements of FCC Directives Caution The AN remote control can be used only in the following countries United States of America and Canada This device complies with Part 15 of the F2. by the first user who selects or memorizes on the remote control or on the heater s control panel a temperature for subsequent 10 6 720 606 990 Using the remote control use e g a shower Then when the hot water is used e g for a shower the heater s display and additional remote control displays will show the symbol The temperature may only be modified using the same buttons that memorized it depending on whether the control panel or the remote control was used The priority device will not have the symbol e To clear a device that is locked out with the symbol with no hot water running simply gt press and hold both the and 7 buttons on that device for 5 seconds The Priority function ends 5 minutes after the last use of the hot water return to basic set up e 2 minutes after selecting memorizing the temperature if no hot water is used immediately afterwards Acquiring priority Any user can acquire priority for subsequent use of hot water as follows Move the heater s main switch to the on position l Press and hold or 7 to select the desired temperature Press and hold the Program but ton until the symbol Pr appears on the remote control display Use the hot water within two minutes of acquiring priority Priority cannot be acquired while the hot water tap is open 4 7 Error messag
3. user when water is running Error code symbol 4 6 720 606 990 Using the remote control 4 2 Remote control trans ceiver PCB installation Warning For safe ty reasons discon nect the power supply to the water heater before per forming installation Pre installation preparation v Disconnect power supply to heater v Remove plastic decals on front panel gt Loosen two Philips head screws located behind plastic decals gt Lift front cover upward and remove e Fig 3 Remove the 5 screws on the front retaining bar see Fig 3 pos 1 and 2 being careful not to damage the foam sealant material on it gt Remove control unit auxiliary cover Fig 3 pos 4 Remove the two electrical strip connectors inside the auxiliary cover Fig see diagram below and then loosen the 110V power supply cord retaining nut located underneath the heater Once loosened the power cord can be pulled up through the heater to provide sufficient slack Once auxiliary cover is off pull off the two electrical strip connectors from the board Once off the wiring harness can be removed from the case by pulling their rubber seals outward 6720606990 09 1 S Fig 4 Electrical strip connectors gt Atthe ignition electrodes pull off the 2 yellow igniter wires that come from the top of the control board Fig 3 pos 3 Then pull the complete control board forward and out of the hea
4. within direct line of sight of the water heater to see if signal will reconnect 4 Error code and A symbol will not clear from remote Error codes cannot be reset by using the remote All errors must be cleared by using the reset button A on the water heater s main control panel Ifan error code is generated immedi ately after the installation of the remote control transceiver PCB ensure two large electrical connec tors Fig 4 on the main PCB are properly seated Error code may not be resettable Consult water heater s installation manual or www boschhotwater for further troubleshooting on error codes 6 720 606 990 13 Troubleshooting 5 Remote will not memorize desired temperature setting gt Verify that the remote control program button is depressed until the remote display reads Pr Memorization of a se lected temperature only saves to the device on which it was originally programmed To re trieve a memorized tem perature setting you must use the device with which it was pro grammed 6 Priority symbol will not clear gt Verify no hot water is being used when trying to clear priority function gt With no hot water running press and hold the A or 7 button for 5 seconds on the locked out device remote or water heater until the e symbol Fig 2 Pos 6 disappears gt Do not use any hot water for at least 5 minute
5. CC rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation 6 720 606 990 Remote control data 2 Remote control data Remote control for temperature adjust ment of Bosch water heaters GWH 635 ES ESO 250 SX 250SXO 2400E 2400EO Technical Data Battery power Alkaline AA LR 6 supply 2x 1 5V Frequency 915 MHz Type of protection IP X6 User range 98 ft 30 m Further Indications Remote control Up to 6 remote controls can be programmed for one single appliance 3 Parts supplied Fig 1 Parts 4 6720606990 031JS BR run 4 1 Fig 2 1 2 Remote control Remote control transceiver PCB Support block PCB connection cable Using the remote con trol Description of the LCD 3 oga u UOTE A Multifunctional LCD Displays temperature error codes and functions Remote control in operation indication signal arriving at remote control Device in operation with burner on Temperature measurement unit possible in C and F Remote control battery level indication weak signal coming from the remote control Priority function temperature cannot be modified by other
6. control will be registered with number O the second with number 1 and so on The rotating digit shows that the electronics is expecting a registration If the LCD fails to show a number and rotating digit after repeated attempts double check the wire connections made in section 4 2 gt Hold remote control in front of the control panel on the heater and press simultaneously remote control buttons A and Y until the temperature indication is shown on the remote control LCD gt Switch power switch on the appliance to the OFF 0 position and then back ON I Press buttons A or in order to reach requested temperature New remote control is programmed 4 3 2 SU board gt Connect power to heater gt Move the main switch on the appliance to the OFF 0 position Press and hold UJ key while at the same time turning the main switch to ON position I LCD shows one number and one rotating digit If not repeat previous step The number represents the remote control which is to be registered the first remote control will be registered with number O the second with number 1 and so on The rotating digit shows that the electronics is expecting a registration If the LCD fails to show a number and rotating digit after repeated attempts double check the wire connections made in section 4 2 Hold remote control in front of the control panel on the heater and p
7. d for a few minutes the remote s display will go blank to save batteries gt simply press any button on the remote to bring up the display 2 Remote control will not activate no number with rotating digit Ensure that you are standing directly in front of the water heater when attempting to activate Ensure that no other device in the area such as a cordless phone is operating on a frequency similar to the remote 915 MHz and causing interference 12 6 720 606 990 Troubleshooting gt Double check all wire connections made under section 4 2 ofthe remote control manual Pay close attention to the wire connecting the remote s PCB to the heater s main PCB 3 Remote display shows only gt Verify the water heater s ON OFF switch is turned to the ON I position If the water heater s display is still blank verify the heater is plugged into a live 120VAC 60Htz properly grounded outlet gt Verify there is proper voltage to the water heater 120VAC 60Htz gt Verify the remote is within the maximum distance from the water heater of 98 feet Ensure that no other device in the area such as a cordless phone is operating on a frequency similar to the remote 915 MHz and causing interference Large amounts of metal or concrete in the structure may have a blocking effect on the remote s signal This may alter the maximum distance allowable from the water heater gt Move
8. ed setting will be saved 6 720 606 990 Using the remote control Fig 9 Memorizing water temperature Only one temperature per remote control can be memorized using the Program button on the remote control gt At this point the remote control will display the memorized temperature When the hot water tap is turned on the water heater will supply hot water at the temperature memorized on the remote control Up to six addition remote controls can be used to memorize a temperature for each remote control Using the Program button operation with memorized temperature To operate the equipment with a previously memorized temperature gt Press the Program button on the remote control The remote control display and heater display will now show the previously memorized temperature When the hot water tap is turned on the water heater will supply hot water after a few seconds at the memorized temperature 4 6 Priority function Temperature cannot be memorized or changed using the heater s control panel buttons or a second remote control when hot water is in use e g during a shower The Priority function will automatically activate to stop another user from modifying the temperature when hot water is in use The remote control does not have a default temperature setting and therefore has no default Priority function The priority will be attributed automatically
9. es This device has an error message system Any errors that the heater generates will be indicated by an error code that will appear on the display Fig 2 pos 1 and by a symbol indicating a safety block Fig 2 pos 7 The remote control will be operative only after pressing the reset button on the heater and clearing the error To identify the type of error or if the error will not clear consult chapter 6 of the heater installation manual 6 720 606 990 11 Troubleshooting 5 Troubleshooting 5 1 Replacing batteries When batteries are weak the symbol Fig 2 pos 5 will appear on the display gt Remove the two screws on the back of the remote control gt Open the battery housing and remove the batteries then replace with new AA LR6 1 5V batteries ensuring they are inserted correctly Verify that the rubber seal is correctly fitted between both plastic housing parts gt Close the battery housing using the two screws Warning dead bat teries must be replaced Consequently the manufacturer is not liable for any faults or damage caused by dead batteries Dispose of the dead batteries properly 5 2 Cleaning Use a damp cloth to clean parts of the remote control Do not use abrasive or solvent based detergents 5 3 Troubleshooting 1 No display on remote control Check for weak or dead batteries see section 5 1 Remote control in sleep mode If not use
10. ress simultaneously remote control buttons A or until the 6 720 606 990 Using the remote control temperature indication is shown on the remote control LCD gt Switch ON OFF switch to OFF position 0 and then back on I gt Press buttons A or Z in order to reach requested temperature New remote control is programmed 4 4 Hot water temperature adjustment by remote control gt Press the buttons A or Z on the remote control Fig 8 pos 2 until the required temperature appears on the remote control display Fig 8 pos 1 gt When the required temperature is displayed turn on the hot water tap gt The required temperature will flash on the remote control display gt The flashing will stop when the required temperature is reached tolerance from selected set point 5 F 2 C Fig 8 Temperature adjustment 4 5 Program button on the remote control Memorizing the water temperature with the remote control Program button gt Press the buttons or on the remote control Fig 9 pos 2 until the required temperature appears on the remote control display Fig 9 pos 1 gt You will now be able to memorize this temperature by pressing the Program button on the remote control Fig 9 pos 3 for 3 seconds Note Previously saved temperature may show on the display when first pushing the program button Once PR shows on the display the desir
11. s The priority function should automatically clear after this time period 14 6 720 606 990 Notes 6 Notes 6 720 606 990 15 BBT NORTH AMERICA Bosch Group Bosch Water Heating 340 Mad River Park Waitsfield Vermont 05673 800 642 3111 802 426 6924 For service see contact information listed on the back of the water heater s installation manual
12. t Replace the control unit auxiliary cover Fig 3 pos 4 gt Replace front retaining bar using 5 Philips head screws Fig 3 pos 1 4 3 Remote control activation Before the remote control will work it must be activated using the procedure described below with the operator standing in front of the appliance The remote control initialization instructions vary based on the version of control board installed in your heater To determine the control board version in the water heater gt Turn power switch on the water heater to the off position O gt When turning power switch to the on position note the first two letters that appear on the display should be AF or SU gt If the letters are AF follow section 4 3 1 For SU follow chapter 4 3 2 4 3 1 AF board gt Connect power to heater gt Move the power switch on the appliance to the off position 0 On heater control panel press and hold Program key MD or CPD 6 720 606 990 Using the remote control while turning on the power switch I Release program key when LCD displays 188 LCD shows P2 previous step gt Select P3 using buttons A and on heater gt Press and hold Program key MD or CPD again for 1 sec If not repeat LCD shows one number and one rotating digit If not repeat previous step The number represents the remote control which is to be registered the first remote
13. ter pull up the power supply cord further if more slack is needed 6 720 606 990 Using the remote control gt While holding the board in one hand or resting it on a flat surface remove the front cover of the control board by removing its 4 screws Remote control transceiver PCB installation gt Remove the protective cover Fig 5 pos 2 from one face of the support and attach it to the main PCB as shown in Fig 6 S720808990 08115 Fig 6 Support correct position gt Using the supplied cable connect between the main PCB and the remote control PCB as shown in Fig 7 Remote PCB e720608990 06118 gt Remove the other protective cover and attach the remote control PCB as shown in Fig 7 Fig 7 6 6 720 606 990 Using the remote control gt Replace the control unit cover with the 4 Philips head screws Fig 5 pos 1 gt Slide control unit back into heater gt Plug 2 yellow electrode wires from the top of the control unit back onto the ignition electrodes Fig 3 pos 3 Wire polarity does not matter on the electrode wires gt Pull end of power cord to take up excess slack and tighten retaining nut on the bottom of the heater gt Reinstall the two electrical strip connectors onto the PCB The larger connector connects to the lower connection on the PCB Reseat the rubber seals for both connectors g
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