2 - 2 Wiring
2-4
Chapter 2. MOUNTING AND WIRING
WARNING
Wire external leads between the power supply terminals (100V, or 200V and
0V) of this control so that power is supplied at all times from the moment the
power switch is turned ON. This wiring is necessary to ensure operation of
the self-test circuits at startup.
CAUTION
When mounting or wiring, be sure to follow the instructions in this user’s
manual and manuals provided by the equipment manufacturer or other
device manufacturers.
Follow all applicable regulations when wiring.
Before wiring, be sure to turn the power supply OFF. Touching terminals by
mistake with the power ON might cause an electric shock or malfunction.
Make sure that the loads connected to the terminals do not exceed the
ratings indicated in the specifications.
Make sure that power of the same voltage and frequency as indicated on the
Model No. label is supplied to the controller.
When configuring control circuits, select reliable timers and auxiliary relays as
necessary for use as additional functions.
Be sure to ground this control using a lead with a resistance of less than
100
Ω
, and be sure to ground the burner body.
Bundle power leads, ignition transformer high-voltage cables and flame
detector leads separately from each other.
Keep ignition transformer high-voltage cables at least 10cm away from the
flame relay.
Make sure that ignition transformer high-voltage cables are properly
connected to prevent faulty contact. Faulty contacts might generate high-
frequency radio waves, resulting in noise in radios or other electrical
appliances, or causing malfunction.
Connect the ignition transformer ground lead directly to the burner body, or to
a metal part that is electrically connected to the burner body.
After wiring, be sure to check the wiring connections. Operating the control
with wires wrongly connected might cause damage or malfunction.
