69-2042 01 - Honeywell

1 S8610U Universal Table 1. Typical Wiring Connections. SETTINGS AND ADJUSTMENTS LED STATUS AND. Intermittent Pilot Gas TROUBLESHOOTING. Connector Label Size or Type Description DIP Switch (S1) Settings Ignition Control MV 1/4 inch Main Valve connection When replacing an existing ignition control with the S8610U, refer to 69-1955 for the correct DIP switch settings. The ignition control module has one LED used for flame sensing and system status. MV/PV 1/4 inch Common terminal for gas valves IMPORTANT. TECHNICIAN'S QUICK REFERENCE GUIDE PV 1/4 inch Pilot Valve connection Do not power the ignition control prior to setting The following service procedure provides a quick overview for BRN GND 1/4 inch Burner Ground the DIP switches. the S8610U series control. For more information, refer to form 24V GND 1/4 inch Return path to transformer 69-1955. The following timing parameters may be set with this 2-position 24V 1/4 inch Optional DIP switch.

2 24 Vac power connection for Vent Damper TH-W 1/4 inch Connector for Call for Heat signal Prepurge from thermostat To select Prepurge, set SW1 according to Table 2. P1 6-pin Connector for Vent Damper keyed plug connection (used to control a SPARK connected damper in atmospheric Trial for Ignition (TFI). appliances) To select the Trial for Ignition timing, set SW2 according to S1 DIP SWITCH. METER ( A) Ammeter Connection for ammeter probes for Table 2. M29894. probes measuring flame current in Amp DC. Table 2. DIP Switch (S1) Settings. SENSE wire with Connects to the REMOTE SENSE Fig. 2. DIP Switch (S1) Location. JUMPER 3/16 inch connector for installations with a single Prepurge Trial For Ignition SW1 SW2. wire quick spark rod (local flame sensing) None 90 seconds OFF OFF. connect NOTE: For installations with remote 30 seconds 90 seconds ON OFF. TH-W (OPT.) REMOTE. flame sensing (separate spark and sensor rods), this jumper wire is None 15 seconds OFF ON S1 STATUS LED M29896.

3 MV 24V (OPT.) SENSE clipped as close to the circuit board as MV/PV. PV SENSE. possible and the wire is discarded. 30 seconds 15 seconds ON ON ON Fig. 4. Location of LED. JUMPER REMOTE 3/16 inch Flame Sensor connector BRN/GND. wire SENSE. 24V GND. For single rod installations, connect the SENSE JUMPER wire to this terminal connector. 1 2. For dual rod installations, connect the M23587. flame sense wire from the burner/. P1 VENT DAMPER igniter to this terminal connector. CONNECTOR M29890. SPARK 1/4 inch High voltage sparking electrode Fig. 3. DIP Switch (S1) - shown with factory default settings (OFF) for SW1 and SW2. Fig. 1. Typical wiring connections. 69-2042 01 2 69-2042 01 3 69-2042 01 4 69-2042 01 5. 69-2042 -01. Table 3. Green LED Status Codes. FLAME CURRENT MEASUREMENT. Green LED. Flame current of the device can be meaured using a standard Flash Codea Indicates Next System Action Recommended Service Action micro-ammeter by simply inserting the meter probes into the OFF No Call for Heat Not applicable None DC holes labeled FLAME CURRENT, as shown in Fig.

4 5. Flash Fast Heartbeat Power up - internal check Normal startup - ignition sequence started (including Not applicable Not applicable None None A. Flame current must be measured with pilot valve lit but no main gas flowing. Disconnect MV leadwire from the control before measuring prepurge) flame current. 4 Seconds ON Device in run mode. "x" = Not applicable None Set meter to DC Amp scale. then x flashes flame current to the nearest P1. +. PRE. PURGE. 30 SEC. TRIAL. FOR. IGNITION. 15 SEC J1. Ensure meter leads are positioned correctly [+/-]. FLAME. A. CURRENT 0 SEC 90 SEC. STATUS. NOTE: Trying to measure the pilot flame current in series with 2 5 minute Retry Delay Initiate new trial for ignition after retry delay If system fails to light on next trial for ignition check gas supply, the wiring will not be accurate. Pilot flame not detected completed. pilot burner, spark and flame sense wiring, flame rod during trial for ignition contaminated or out of position, burner ground connection.

5 Recommended Minimum Pilot Only Flame Current: 3 Recycle Initiate new trial for ignition. Flash code will If system fails to light on next trial for ignition, check gas supply, Must read steady 1 Amp DC minimum. Flame failed during run remain through the ignition trial until flame is pilot burner, flame sense wiring, contamination of flame rod, Flame current should be 2 Amp or greater for reliable proved. burner ground connection. P1. +. PRE. PURGE. TRIAL. FOR. IGNITION. appliance operation. 4 Flame sensed out of If situation self corrects within 10 seconds, Check for pilot flame. Replace gas valve if pilot flame present. If FLAME 30 SEC 15 SEC J1. CURRENT 0 SEC 90 SEC. sequence control module returns to normal sequence. If no pilot flame, cycle Call for Heat. If error repeats, replace STATUS. flame out of sequence remains longer than 10 control. seconds, control will resume normal operation 1.

6 Hour after error is corrected. 5 Damper Error: If damper error corrects, ignition control Check damper connection, damper wiring, and 24V connection Damper required but not resumes normal operation. on control. present Damper failed to open Replace damper if necessary. within 60 seconds Damper failed to close within 60 seconds 6 Control Internal Error Control module remains in wait mode. When the Cycle Call for Heat. If error repeats, replace control. fault corrects, control module resumes normal operation. 7 Flame rod shorted to ground Control module remains in wait mode. When the Check flame sense lead wire for damage or shorting. Check Automation and Control Solutions fault corrects, control module resumes normal that flame rod is in proper position. Check flame rod ceramic for operation. cracks, damage or tracking. Honeywell International Inc. 8 Low secondary voltage Control module remains in wait mode.

7 When the Check transformer and AC line for proper input voltage to the 1985 Douglas Drive North supply fault corrects, control module resumes normal control. Check with full system load on the transformer. operation. Golden Valley, MN 55422. M31283. a Flash Code Descriptions: - Flash Fast: rapid blinking. - Heartbeat: Constant -second bright, -second dim cycles. Honeywell Limited- Honeywell Limit e - 4-second solid on pulse followed by x 1-second flashes indicates Fig. 5. Measuring flame current with micro-ammeter. 35 Dynamic Drive flame current to the nearest mA. This is only available in run mode. - A single flash code number signifies that the LED flashes X times at 2 Toronto, Ontario M1V 4Z9. Hz, remains off for two seconds, and then repeats the sequence. Registered Trademark 2010 Honeywell International Inc. 69-2042 01 Rev. 09-10. 69-2042 01 6 69-2042 01 7 69-2042 01 8 69-2042 01 9 Printed i