1) Ensure the unit is not in operation.
2) Remove the screw off the manifold port.
3) Connect a manometer to the manifold port using a tube (Figure 1). Ensure that this connection is secure enough to prevent gas leak.
4) Run water through the unit to activate its operation. It is suggested that a large amount of flow is drawn in order to prevent overheating during max burn. If presence of a gas leak is detected, immediately shut off the unit and inspect the tube/manifold connection; otherwise, proceed onto the next step.
proceed onto the next step.
5) To check the manifold gas pressure during maximum combustion, press and hold the “MAX” button on the computer board. To check the manifold pressure during minimum combustion, press and hold the “MIN” button on the computer board. The desired pressures are listed in the specification table at the beginning of this manual.
6) If the manifold pressures do not match up with those listed, adjust the manifold pressure (see the following procedure).
