IKONIC Tankless Water Heater Service Manual
68
GAS-AIR RATIO VALVE
HOW TO REMOVE COMPONENTS
1. Remove 3 screws connected to gas orice block and
2 screws connected to gas-air ratio valve bracket.
2. Remove quick fastener connected to the gas-air ratio
valve and gas pipe.
3. Pull the pipe from gas-air ratio valve.
NOTE: If the gas-air ratio valve is replaced, please
recheck that the manifold pressure is 0.00 in. W.C at 1L
operation mode.
To measure the manifold pressure, remove the screw
from the outlet tap on the gas valve.
Connect manometer to the outlet tap to measure mani-
fold pressure as shown in gure below.
Reinstall screw after measurement is completed.
To set 1L operation mode, please refer to section
“Burner Staging”.
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