Fig. 3. Separating and installing selection tab.
Wire the Module
CAUTION
1. Check the wiring diagram furnished by the appliance manufacturer, if available, and compare with Fig. 4 through
6. Carefully follow any special instructions affecting the general procedures outlined in this section.
2. Disconnect the power supply before making wiring connections to prevent electrical shock or equipment
damage.
IMPORTANT
1. Be sure all wiring complies with applicable electrical codes and ordinances.
2. Assure that hot surface igniter leadwires are not allowed to rest against grounded metal surfaces.
3. A common ground is required for the S8910U and the main burner. The 24V (GND) terminal internally grounds
one side of the transformer. Be sure that auxiliary controls or limits are not in the grounded leg. In addition,
earth-ground the appliance.
4. Make sure the transformer has adequate VA. The ignition module requires 0.4A at 24 Vac. Add together the
current draws of all other devices in the control circuit, including the pilot and main valves in the gas control, and
multiply by 24 to determine the total VA requirement of these components. Add this total to 9.6 VA (for the
ignition module). The result is the minimum transformer VA rating. Use a Class II transformer when replacement
is required.
5. Check that L1 (hot) and L2 (neutral) are wired to the proper terminals.
1. Connect the wires to the S8910U Ignition Module as shown in Table 5. Make sure that adequate system ground
is provided as indicated in the wiring table. See Fig. 4 through 6. Where a change in quick-connect is required,
cut off the original quick-connect, strip the lead wire and firmly crimp in place the proper quick connect supplied.
2. Verify the thermostat anticipator setting as explained in the above IMPORTANT, item 4 .
Table 2. White-Rodgers Control to Honeywell S8910U Cross Reference.
NOTE: White-Rodgers product information was obtained from the 1991 White-Rodgers Product Catalog (R3700).
NOTE: This list is for reference only. Honeywell reserves the right to add or delete models at any time, based on new
To Next Page
Loading...
