Residential SOLATM S7910B Local Keyboard Display Module PRODUCT DATA FEATURES FUNCTIONS SUPPORTED • Burner control state, sequence • Rate control manual adjustment • Lockout code • Alert and Hold Reason • CH set point • DHW set point • Communication interface with R7910B. • First out and system status and diagnostics provided through the LCD. • Local communication of operation and fault information. APPLICATION The S7910B Local Operator interface provides setpoint and control adjustments to parameters of the R7910B SOLA Hydronic Control. The R7910B SOLA is programmed to provide a level of safety, functional capabilities, and features beyond the capacity of conventional controls. All data is displayed on an LCD with backlight. The S7910B has four function buttons. The function of the bottom two buttons varies according to the operation mode and screen displayed. The right two buttons are used to adjust settings and navigate up and down the displayed data. Contents Application ........................................................................ Features ........................................................................... Ordering Information ........................................................ Specifications ................................................................... Installation ........................................................................ Wiring ............................................................................... Operation .......................................................................... 1 1 2 2 2 3 3 • Control Temperatures • Outlet temperature • Inlet temperature • Delta T (Outlet-Inlet) • DHW temperature • Stack temperature • Outdoor temperature • Set-up • Degree F/C toggle • Outdoor reset parameter settings • Remote firing rate control enable/disable • Anti-Short Cycle enable/disable and setting • Modbus address setting (1–250) • Lead Lag Control • LL on/off hysteresis • LL baseload % • Warm weather shutdown • PIM Operation • Diagnostics • Flame signal measurement (µA) • Previous Alert • Previous Lockout code displayed • Outlet Temp high limit • Stack temp high limit • DHW temp high limit • Min/Max/Manual firing rate testing 68-0295-02 RESIDENTIAL SOLATM S7910B LOCAL KEYBOARD DISPLAY MODULE SPECIFICATIONS [2] 5-43/64 (144) 4-29/64 (113) [2] 9/32 (7) All power and application requirements are controlled by the R7910B controller. 1/64 (.5) MAX 31/16 (87) WARNING [2] 9/32 (7) [2] 1/2 (13) [2] 11/16 (17) [2] 1-1/2 (38) Do not attempt to use this display in applications connecting to devices other than a R7910B. For information on appropriate environmental requirements see Honeywell Product Data 68-0290EF. 31/32 (25) 39/64 (15) Boilers or other equipment provided with these interface devices need to have appropriate instruction sheets issued by the equipment OEM giving instructions on use. Or a copy of the Honeywell Product Data 68-0290EF needs to be included with the appliance. [4] 1/4 (6) M27488 Fig. 1. Approximate Panel Cutout dimensions of S7910B in inches (millimeters). INSTALLATION Electrical Ratings: Voltage and Frequency: 24 VAC powered from R7910B. Environmental Ratings: Ambient Temperature Ranges: Operating: 32°F to +120°F (-0°C to +49°C). Storage: -60°F to +150°F (-51°C to +66°C). Humidity: 85% relative humidity continuous, noncondensing. Vibration: 0.5G environment. WARNING Electrical Shock Hazard. Can cause severe injury, death or property damage. Disconnect the power supply before beginning installation to prevent electrical shock and equipment damage. More than one power supply may have to be disconnected. Mechanical: Dimensions: See Fig. 1. Weight: 4 oz. (124 grams), unpacked. When Installing This Product… Display: LCD 1. Approvals: Underwriters Laboratories Inc. (UL)(cUL) Listed: File No. MH20613 (MCCZ). Federal Communications Commission: Part 15, Class B emissions. 2. 3. Mounting: Snap-in model, See Figure 1 for Panel Cutout dimensions. 4. 5. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition. Check the ratings given in the instructions and marked on the product to make sure the product is suitable for your application. Installer must be a trained, experienced, flame safeguard service technician. After installation is complete, check out the product operation as provided in these instructions. Be sure wiring complies with all applicable codes, ordinances and regulations. ORDERING INFORMATION When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the TRADELINE® Catalog or price sheets for complete ordering number. If you have additional questions, need further information, or would like to comment on our products or services, please write or phone: 1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory). 2. Honeywell Customer Care 1885 Douglas Drive North Minneapolis, Minnesota 55422-4386 In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Toronto, Ontario M1V 4Z9. International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A. 68-0295—02 2 RESIDENTIAL SOLATM S7910B LOCAL KEYBOARD DISPLAY MODULE IMPORTANT 1. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, can cause interference to radio communications. It has been tested and found to comply with the limits for a Class B computing device of Part 15 of FCC rules which are designed to provided reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area can cause interference, in which case, users, at their own expense, can be required to take whatever measures are required to correct this interference. 2. This digital apparatus does not exceed the Class B limits for radio noise for digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. The S7910B includes four keys. The bottom two keys vary depending on what commands are displayed above them. The two keys on the right adjust the displayed information. OPERATING MODE ICONS NUMERICAL DISPLAY UP Outlet Max LBTHODLOOTOD Inlet F Min AT C Rate DHW M Rmt Stack V Adr Outdoor A ASC Stby Check Prepurge Ignition Run Postpurge Setup diag Lockout Pilot Hold Alert Home Done Reset Confirm Next Humidity Install the S7910B where the relative humidity never reaches the dew point (condensation). The S7910B is designed to operate in a maximum 85% RH continuous, noncondensing, moisture environment. HOME/DONE/RESET CONFIRM/NEXT DOWN M27489 Fig. 3. S7910B user interface. Three operation modes are available: User Mode, Setup Mode, and Diagnostic Mode. Vibration Do not install the S7910B where it can be subjected to vibration in excess of 0.5G continuous maximum vibration. Startup Weather At startup, all text on the LCD will be displayed for 2 seconds, followed by the software version number for an additional 2 seconds. The S7910B is not designed to be weather tight. If installed outdoors, the S7910B must be protected by a NEMA approved weather-tight enclosure. Next the S7910B will switch to outlet temperature display and try to communicate with the R7910B. During this time, dashes will be displayed in the numerical part of the LCD, along with “Outlet” and “°F” or “°C.” When the S7910B communicates with an R7910B, it switches to User Mode. If an error occurs, the system switches to Error Mode. WIRING Wire the S7910B as shown in Fig. 2 using the wiring backplate provided. a b c a b c 1 2 3 J3 R7910 HYDRONIC CONTROL 1 2 User Mode In User Mode, the S7910B displays operating data of an R7910B such as Outlet temperature, CH setpoint, or boiler firing rate. The user can change screens by pressing the Next button. Depending on R7910B mode of operation, the S7910B distinguishes between three home screens: • If CH call for heat is active, the S7910B considers outlet water to be the home screen. • If DHW call for heat is active, then DHW water temp will be the home screen. • If lead lag master call for heat is active, then lead lag temperature will be the home screen. 3 S7910 LOCAL DISPLAY M27092 Fig. 2. S7910B wiring diagram. User Mode consists of the items listed in Table 1. Pressing the Next button progresses through the User Mode screens. OPERATION If limits are shown, pressing the up down buttons increases or decreases the setpoints. • Pressing the button changes setpoints in one degree increments. • Pressing and holding the button changes setpoints in five degree increments. All data from the S7910B is displayed on an LCD with backlight. The LCD has two main zones: • the Numerical Display contains numbers (degrees, percentages, etc.). • the Operating Mode Icons indicate what mode the S7910B is in. See Fig. 5 for the User Mode screen flow chart. 3 68-0295—02 RESIDENTIAL SOLATM S7910B LOCAL KEYBOARD DISPLAY MODULE Table 1. User Mode Screens. Screen Displays Outlet Water Temp Display current outlet water temperature Outlet Setpoint Display and modify current Outlet (CH) setpoint temperature Inlet Water Temp Display current inlet water temperature Delta Temp Display delta T temperature ([outlet temperature] - [inlet temperature]) DHW Temp Display current DHW water temperature DHW Setpoint Display and modify current DHW setpoint temperature Stack Temp Display current stack temperature Outdoor Temp Display current outdoor temperature Firing Rate Display current boiler firing rate value Lead Lag Header Temp Current LL temp is displayed Setpoint Temp Display and modify current LL setpoint temp 0 TIMEOUT 888 Outlet LBTHODLODTOD Max ˚F Min Inlet ˚C Rate T % Rmt DHW Stack V Adr μA ASC Outdoor Stby Check Prepurge Ignition Run Postpurge Setup Diag Lockout Pilot Hold Alert Home Done Reset DC POWER-UP Confirm Next TIMEOUT 87 Outlet Stby ˚F Inlet NEXT Stby 68 ˚F Stby Next Next DONE / TIMEOUT Outlet Stby 17 ˚F T NEXT 138 ˚F NEXT DHW Stby Next DHW Stby Next NEXT / TIMEOUT Next UP/DOWN UP/DOWN 90 86 ˚F NEXT 120 ˚F ˚F TIMEOUT TIMEOUT DONE / TIMEOUT DHW Stby Done DONE / TIMEOUT Done DONE / TIMEOUT DONE / TIMEOUT TIMEOUT 120 ˚F Stby Done DONE / TIMEOUT TIMEOUT UP/DOWN 138 ˚F NEXT / TIMEOUT Stby NEXT Stack Stby LL TIMEOUT Stby Next Next 10 % NEXT TIMEOUT NEXT Outdoor Stby Next 50 ˚F Rate NEXT Next M31206 Fig. 4. User Mode screen flow. After a certain period of user inactivity the S7910B times out and switches to the current home screen. Setpoint changes made prior to the timeout will be saved. Pressing the Done button after changing a setpoint also saves the new setpoint. 68-0295—02 Timeouts for the different screens of the User Mode are shown in Table 2. 4 RESIDENTIAL SOLATM S7910B LOCAL KEYBOARD DISPLAY MODULE Table 3. Setup Mode Features. (Continued) Table 2. Timeouts in User Mode. Screen Displayed Setting Length of Inactivity that Causes Timeout Outlet water temp 1 minute CH water setpoint temp 10 seconds Inlet water temp 1 minute Remote Firing Control Remote Firing Address Display and modify current remote firing control (On or OFF). If On, Set Modbus Address (1 to 250). Lead Lag Current status of LL is shown "Ldr' (leader or Master), SLA (slave) or OFF along with the setup icon. Pressing the up and down key toggles through the lead lag options. Pressing 'Next' goes to the next setup screen. The Rmt Adr icon indicates SLA configuration, Rmt icon indicates Ldr (Master) configuration. Hysteresis H5 is displayed to indicate current On/Off hysteresis. Pressing the up/down key increments/decrements the displayed value with 1 degree step. Baseload Bl is displayed to indicate current baseload in %. Pressing the up/down key increments/ decrements the displayed value with 1 % step. Delta T DHW water temp DHW water setpoint temp 10 seconds Stack temp 1 minute Outdoor temp Firing Rate Lead Lag Header Temp Lead Lag Setpoint Temp 10 seconds Setup Mode Pressing and holding both the Up and Down buttons for 3 seconds changes the S7910 from User Mode to Setup Mode. Warm Weather Sd is displayed to indicate warm weather Shutdown temperature. Pressing the up/down key increments/decrements the displayed value with 1 degree step. The 'Sd' icon will blink when waiting for the current WWSD value from the R7910. The Setup icon will be displayed in the Operating Mode portion of the display. The user can change screens by pressing the Next button. NOTE: Entering Setup Mode will put the R7910 system into Standby. If the system is firing, the R7910 will postpurge and go to Standby. The system will remain in Standby until the Done button is pressed or the inactive timeout time has elapsed. Anti-short cycle The Min and ASC icon is displayed to indicate anti-short cycle. Pressing the up/ down key increments/decrements the displayed value within range 0.0 to 10.0. Anti-short time display format “LBTHODLOD” in the Numerical display section refers to Outdoor Reset. When Outdoor Reset is Off, pressing the Next button will move to the Rmt icon. When Outdoor Reset is On, pressing the Next button will move into the LBT, HOD, and LOD displays, which will allow setting of the Low Boiler Reset Temperature, High Outdoor Reset Temperature, and Low Outdoor Reset Temperatures. Table 3. Setup Mode Features. Definition °F/°C Set display to either degrees Fahrenheit or degrees Celsius. LBTHODLOD LBTHODLOD (Outdoor Reset) Off or ON. • If Off go to Remote Firing Control. • If On go to Low Boiler Reset Temp. Low Boiler Temp Display and modify current LBT setpoint temperature High Outdoor Reset Temp Display and modify current HOD setpoint temperature. Low Outdoor Reset Temp Display and modify current LOD setpoint temperature . Displayed value Anti-short cycle time in seconds 0 0 0.1 6 0.2 12 --- See Fig. 5 for the Setup Mode screen flow chart. Setting Definition 1.0 60 1.1 66 1.2 72 --- 5 10 600 PIM operation Up/down key selects bAC (backup) or rES (restore) 68-0295—02 RESIDENTIAL SOLATM S7910B LOCAL KEYBOARD DISPLAY MODULE Table 3. Setup Mode Features. (Continued) Setting Password After a certain period of user inactivity or if the Done button is pressed, the S7910B switches to the current home screen and the system switches from Standby to normal operation. Definition PAS informs the user that a three digit password needs to be entered to complete the selected operation. Up/down key increments the flashing digit of the three digit pass code. Next key switches the editable digits. Done key enters the pass code and the selected action (backup or restore) will be exercised. NOTE: This passcode is supplied from the OEM and is maintained within the R7910 device. If performing multiple backup/restore operations, the pass code entry screen is required for each operation. Timeouts for the Setup Mode are shown in Table 4. Table 4. Timeouts in Setup Mode. Screen Displayed Temperature scale Outdoor reset temperatures Remote firing control Remote firing address Description E81 Provided password not recognized E82 PIM not detected in socket E83 PIM busy/not available E84 Data Invalid E85 PIM vs. Sola mismatch (e.g. model) E86 PIM memory not sufficient E87 Fatal error occurred E88 Command from S7910 not recognized E89 Initial scan not finished E98 Timeout, no response Lead Lag control LL on/off hysteresis LL Baseload Anti-short-cycle PIM operations Pressing 'next' returns back to the command screen to repeat the operation that failed. Pressing 'done' exits the setup mode. 68-0295—02 1 minute Outdoor reset setting PIM Error Codes Code Length of Inactivity That Causes Timeout 6 5 minutes RESIDENTIAL SOLATM S7910B LOCAL KEYBOARD DISPLAY MODULE ENTER SETUP MODE ICP MMI-SETUP MODE (1) LBT LBTHODLOD NEXT Setup NEXT Setup Setup Done Next Done Next UP/DOWN NEXT 68 HOD Setup Done Next Next UP/DOWN LBTHODLOD Setup 68 ˚F ˚F Setup Done Done Next Next NEXT NEXT 14 LOD ANY SETUP SCREEN NEXT Setup Rmt Adr Setup Done Next DONE / TIMEOUT LEAVE SETUP MODE 3 ˚F Done Next NEXT CONTINUE ON NEXT PAGE M31208 Fig. 5. Setup Mode screen flow Setup mode 1 7 68-0295—02 RESIDENTIAL SOLATM S7910B LOCAL KEYBOARD DISPLAY MODULE ICP MMI-SETUP MODE (2) CONTINUED FROM PREVIOUS SETUP SCREENS NEXT Setup Done Next hs UP/DOWN LL SLA NEXT Setup Setup Setup Done Setup Done Next NEXT Done Next NEXT Next NEXT Setup Done Done Next 17 Next UP/DOWN NEXT Setup DONE / TIMEOUT NEXT ˚F Setup Done Next 81 % Setup Done ANY SETUP SCREEN 66 ˚F Next NEXT Done Next NEXT Setup Done 2.5 Next LEAVE SETUP MODE NEXT Min ASC Setup Done CONTINUE ON NEXT PAGE M31214 Fig. 6. Setup Mode screen flow Setup mode 2 68-0295—02 Next 8 RESIDENTIAL SOLATM S7910B LOCAL KEYBOARD DISPLAY MODULE ICP MMI-SETUP MODE (3) ERROR RECEIVED/ 20S TIMEOUT CONTINUED FROM PREVIOUS SETUP SCREENS E87 ANY SETUP SCREEN DONE / TIMEOUT AC 1S Setup NEXT Setup Done Done Next Next LEAVE SETUP MODE AC A PAS NEXT Setup AC Setup Done UP/DOWN Done Next ES 000 Setup Next OK RECEIVED B Setup Setup Done Next UP/DOWN ES B A Setup Done Next OK RECEIVED Done Done Next Next “bAC” = BACKUP “rES” = RESTORE LEGEND FLASHING ITEM E87 NEXT CHANGES FLASHING DIGIT ERROR RECEIVED/ 20S TIMEOUT ES 1S Setup NEXT Setup Done Next Done Next M31210 Fig. 7. Setup Mode screen flow Setup mode 3 Diagnostic Mode Table 5. Diagnostic Mode Features. Pressing and Holding the Next button for 3 seconds changes the S7910B from User Mode to Diagnostic Mode. Setting The Diag icon will be displayed in the Operating Mode portion of the display. The user can change screens by pressing the Next button. Flame Signal Display current flame signal strength value. Flame signal in µA. Alert Display last Alert code number (See R7910 Product Data Sheet 68-0290EF for description). Lockout Display last Lockout code number (See R7910 Product Data Sheet 68-0290EF for description). See Fig. 8 for the Diagnostic Mode screen flow chart. 9 Definition 68-0295—02 RESIDENTIAL SOLATM S7910B LOCAL KEYBOARD DISPLAY MODULE Table 5. Diagnostic Mode Features. (Continued) Setting After a certain period of user inactivity or when the Done button is pressed, the R7910B is forced to accept all calls for heat and the S7910B leaves the Diagnostic Mode and switches to the User Mode’s current home screen. Definition Outlet Temp High Limit Display current outlet temperature high limit setting. Stack Temp High Limit Display current stack temperature high limit setting. DHW Temp High Limit Display current DHW temperature high limit setting. Firing Rate Adjustment Display and modify boiler firing rate value. If the Next button is pressed, it causes S7910B to display the next screen of the Diagnostic Mode. Firing Rate Adjustment—Maximum Rate The Max icon is flashing and the Diag icon is solid. In this mode a demand is sent to the R7910B and the burner will start (if not already operating) and is forced to run at 90% of firing rate. Alerts The Firing rate value display is alternated with the outlet temperature display. Alerts are abnormal events that do not require manual intervention to reset the R7910. Alerts can be faults from nonsafety functions such as a temperature sensor out of range or AC Frequency out of range. After a certain period of user inactivity or when the Done button is pressed, the R7910B is forced to accept all calls for heat and the S7910B leaves the Diagnostic Mode and switches to the User Mode’s current home screen. The last received Alert number is displayed with the Diag icon. Pressing the Reset button clears the Alert number. If the Next button is pressed, it causes S7910B to display the next screen of the Diagnostic Mode. When a new Alert is received, the Alert icon is displayed, and the S7910B is in User Mode. To clear the Alert number, change to the Diagnostic Mode and press the Reset button. After a certain period of user inactivity or when the Done button is pressed, the S7910B leaves Diagnostic Mode and returns to the User Mode’s current home screen. Firing Rate Adjustment—Manual Rate The Rate icon is flashing and the Diag icon is solid. In this mode a demand is sent to the R7910B and the burner will start (if not already operating) and is forced to run at 90% of firing rate. Lockouts The Firing rate value display is alternated with the outlet temperature display. Pressing the Up or Down buttons changes the displayed firing rate value in 1% increments within a range 10% to 90%. Lockouts cause the R7910 to shutdown and require manual or remote reset to clear the lockout. Lockouts always cause the Alarm contacts to close. The last received Lockout number is displayed with the Diag icon. Pressing the Reset button clears the Lockout number and resets the R7910. After certain period of user inactivity or when the Done button is pressed, the R7910B is forced to accept all calls for heat and the S7910B leaves the Diagnostic Mode and switches to the User Mode’s current home screen. After certain period of user inactivity or when the Done button is pressed, the S7910B leaves Diagnostic Mode and switches to the User Mode’s current home screen. Timeouts for the Diagnostic Mode are shown in Table 6. Pressing the Next button causes the S7910B to display the next screen of the Diagnostic Mode. Table 6. Timeouts in Diagnostic Mode. Firing Rate Adjustment—Initial Screen The Min icon is displayed with the Diag icon. This screen indicates that the S7910B is going to enter firing rate adjustment mode. Screen Displayed Flame signal Previous Alert Pressing the Next button forces the R7910B to enter the state where all calls for heat are ignored and the S7910B switches to the next screen of the Diagnostic Mode. Previous Lockout Outlet temp high limit Stack temp high limit Firing Rate Adjustment—Minimum Rate DHW temp high limit The Min icon is flashing and the Diag icon is solid. In this mode a demand is sent to the R7910B and the burner will start (if not already operating) and is forced to run at 10% of firing rate. Firing rate adjustment—initial screen Firing rate adjustment—minimum rate Firing rate adjustment—maximum rate The Firing rate value display is alternated with the outlet temperature display. 68-0295—02 Firing rate adjustment—manual rate 10 Length of Inactivity That Causes Timeout 5 minutes RESIDENTIAL SOLATM S7910B LOCAL KEYBOARD DISPLAY MODULE ENTER DIAGNOSTIC MODE 0 5 NEXT µA Diag Alert Diag Done Next 120 NEXT µA Reset NEXT Max Diag Diag Lockout Done Next 104 Outlet Done Next Next NEXT DHW NEXT 122 ˚F NEXT Done 10 Run Diag Diag Done Next Min % NEXT Done Run Diag 90 Done Done Next Max % NEXT Next Stack Max Diag Diag Min 104 ˚F 90 % NEXT Run Diag Next Next Done Rate Next DONE ANY SCREEN DONE / RESET TIMEOUT LEAVE DIAGNOSTIC MODE Fig. 8. Diagnostic Mode screen flow. 11 M28168 68-0295—02 RESIDENTIAL SOLATM S7910B LOCAL KEYBOARD DISPLAY MODULE Error Modes Incompatible Model of R7910B Detected Hold A Hold code is displayed in the numerical part of the display when a Hold state is received. Burner state sequence icons reflect the current state of the R791BA burner. There is no way to leave this state through user intervention on the S7910B. Lockout A Lockout code is displayed in the numerical part of the display when a Lockout state is received. When the Reset button is pressed, the R7910B is forced to leave the Lockout state. Alert code 980 is displayed as an S7910B internal Alert when an incompatible version of R7910B is detected. For example: • S7910A commercial model: R7910B residential model found. • S7910B residential model: R7910A commercial model found. There is no way to take S7910B out of this state other than connecting the right device and cycling power to the S7910B. Communication Timeout Alert code 981 is displayed as an S7910B internal Alert when the R7910B repeatedly does not respond to message queries sent by the S7910B. The S7910B continues polling the R7910B in this state to determine when it starts to communicate again. When the communication is restored, the S7910B switches to the User Mode home page and continues normal operation. Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Toronto, Ontario M1V 4Z9 customer.honeywell.com ® U.S. Registered Trademark © 2009 Honeywell International Inc. 68-0295—02 E.K. Rev. 12-09 Printed in U.S.A.