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3-7 Gas Setting Procedure
1. Preparation
(1) Make sure the appliance is not in operation. Then, remove the screw from the
pressure check hole.
(2) Connect the hose of the manometer to the pressure check hole.
2. Adjusting nozzle pressure settings <Minimum pressure should be set
before setting the maximum pressure.>
(1) Make sure that “Dip Switch” No. 1 on PCB is set to the position for the appropriate
gas type. If installation is a cascade type, change the dip switch block No.2 to all
OFF and remove wires from Remote controller Connection Terminals.
(2) After igniting for combustion by opening the hot water supply valve, set “Dip
Switch” No. 5 to ON position to set the combustion at a minimum capacity level.
By pressing the Gas Volume Adjusting Button under the “Remote Controller
Connection Terminals”, set the gas amount for the minimum capacity level.
(3) Shut the hot water supply valve. Open the valve again for combustion. Repeat the
steps (2) to check that the settings are correct.
(4) With the combustion going on, set “Dip Switch” No.6 to ON position to set the
combustion at a maximum capacity level. At this time, a substantial amount of
water should be supplied. (As the maximum capacity is forced, if the water inlet
temperature is high, the heated water may reach boiling point.)
(5) Set the gas amount for the maximum capacity level by pressing the Gas Volume
Adjusting Button.
(6) Shut the hot water supply valve. Open the valve again for combustion. Repeat the
steps (5) to check that the settings are correct.
(7) Set “Dip Switch” No. 5 and 6 to OFF.
(8) Shut the hot water supply valve to stop combustion. Disconnect the rubber hose
of the manometer from the pressure check hole. Seal the hole by installing and
tightening the screw. After tightening the screw, make sure there is no gas leak.
(9) In the event that is connected to cascade type, follow the “CASCADE SET UP” in
the installation instructions.
Nozzle pressure
Rubber Tubing
Threaded Hose Fitting
Dip Switch
Gas Volume Adjusting
Button (UP)
Remote Controller
Connection Terminals
Gas Volume Adjusting
Button (DOWN)
