28
Chapter 5. Trial Operation and Adjustment
WARNING
The ignition time for the pilot and main burners should not exceed the time defined by the
burner or device manufacturer. If it does, fuel will accumulate in the combustion chamber and
form an explosive mixture, resulting in a very dangerous situation in which an explosion could
occur.
Do not touch terminal 14 (F) after turning the power off. An electric charge may remain on
terminal 14 (F) and may cause an electric shock.
Do not operate this device without first completing its adjustment and testing, and also the
testing specified by the combustion equipment manufacturer.
CAUTION
Installation, wiring, inspection, adjustment, and maintenance must be carried out by
experienced specialists who have knowledge and skills concerning combustion equipment
and this device.
The pilot turn-down test should be carried out only by specialists who have knowledge and
skills concerning combustion equipment and combustion safety.
After turning on the power, allow sufficient time before checking the output of this device.
This device does not start operation until about 8 seconds after power-on.
Preliminary inspection
• The temperature and humidity are within the ranges specified for operating
conditions.
• There are no errors in wiring, and terminal screws are not loose.
• The flame detector is installed correctly. (For the installation location,
orientation, and other details, see the user's manual for the flame detector.)
• The burner is adjusted correctly.
• There are no obstructions, covers, or other items blocking the combustion air
intake or exhaust outlet.
• The power supply voltage and frequency are the same as those shown on the
device.
Inspection procedure
For safe operation of the combustion equipment, inspect the following items
carefully and make appropriate adjustments.
To Next Page
Loading...
