IKONIC Tankless Water Heater Service Manual
65
3.2 GAS-AIR RATIO VALVE
HOW TO REMOVE COMPONENTS
1. Remove 3 screws connected to gas orifice block
and 2 screws connected to gas-air ratio valve
bracket.
2. Remove quick fastener connected gas-air ratio
valve and gas connected pipe.
3. Pull the pipe from gas-air ratio valve.
NOTE: If the gas-air ratio valve is replaced,
please recheck 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 manifold pressure as shown in figure
below.
Re install screw after measurement is com-
pleted.
To set 1L operation mode, please refer to sec-
tion “1.4.2 Setting operation mode”
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