S9360A, S9361A, S9380A, S9381A INTEGRATED BOILER CONTROLLERS
66-1203—05
6
WIRING
WARNING
Electrical Shock Hazard.
Can cause severe injury, death or property
damage.
Disconnect the power supply before making wiring
connections to prevent electrical shock or
equipment damage.
Check the wiring diagram furnished by the appliance
manufacturer for circuits differing from the wiring hookup
shown in Fig. 4. Carefully follow any special instructions
affecting the general procedures outlined below.
IMPORTANT
1. All wiring must comply with applicable local
electrical codes and ordinances.
2. When installing a hot surface igniter, the
leadwires should be kept as short as possible
and should not be allowed to rest against
grounded metal surfaces.
3. A common ground is required for the S93XX and
the main burner. The 24V “secondary” plug inter-
nally grounds one side of the transformer. Any
auxiliary controls or limits must not be in the
grounded leg. In addition, the appliance should
be earth-grounded.
4. Make sure the transformer has adequate VA.
The ignition module requires at least 0.2A at 24
Vac. Add the current draws of all other devices in
the control circuit, including the gas control, and
multiply by 24 to determine the total VA
requirements of these components. Add this
total to 5.0 VA (for the module). The result is the
minimum transformer VA rating. Use a Class II
transformer if replacement is required.
5. Check that L1 (hot) and L2 (neutral) are wired to
the proper terminals.
Connect Ignition Cable (S936XAXXXX,
S938XAXXXX)
Use Honeywell ignition cable or construct an ignition
cable that conforms to suitable national standards, such
as Underwriters Laboratories Inc. See Specifications
section. To construct a cable, fit one end (the module end)
with 1/4 in. connector receptacle and the other with a
connector to match the pilot assembly. Protect both ends
with insulated boots.
NOTE: Cable length must be 36 in. (0.9 m) or less.
The cable must not be in continuous contact
with a metal surface or spark voltage will be
greatly reduced. Use ceramic or plastic
standoff insulators as required.
1.
Connect one end of the cable to the male
quick-connect SPARK terminal on the module.
2.
Connect the other end of the cable to the igniter or
igniter-sensor stud on the pilot burner/igniter-
sensor.
S938X Direct Spark Ignition (DSI)
Versions
See Fig. 5 for direct spark ignition wiring details.
Connect Inducer (Inducer Models)
An inducer can be used with modules provided with an
inducer plug connector. The Molex
®
plug provided
simplifies wiring connections.
To connect the inducer, follow the wiring diagrams
supplied with the inducer for typical connections.
Connect Remaining Module Connectors
Connect remaining system components to the ignition
module terminals as shown in the appropriate wiring
diagrams, Fig. 4.
Connect Gas Control
Use No. 18 AWG solid or stranded wire. Connect to gas
control terminals as shown in wiring diagrams, using
terminals appropriate to the gas control.
Ground Control System
The igniter, flame sensor and module must share a
common ground with the main burner. Use AWM
insulated wire with a minimum rating of 105°C (221°F) for
the ground wire; asbestos insulation is not acceptable. If
necessary, use a shield to protect the wire from radiant
heat generated by the burner.
The burner serves as the common grounding area. If
there is not a good metal-to-metal contact between the
burner and ground, run a lead from the burner to ground.
NOTE: “Earth” ground is not required.
Transformer: Add current ratings of module, gas control,
vent damper and any other components of the control
system to determine transformer size requirements.
