Lochinvar EcoForce EF80 Installation, Commissioning, User And Maintenance Instructions page 112

11. Adjust screw 1 to give a CO
will reduce the CO
12. Turn the set point dial fully clockwise and re-check the combustion reading at high fire. Adjust as necessary.
13. Once the setting has been completed, depress the small switch below the communication interface port to return the water heater
to its normal operating mode.
14. Record the combustion data and leave with the appliance for future reference.
The dust cap, once reinstalled, should be marked with an anti-tamper indicator.
24.2.1 GAS VALVE
output of 9.5% (± 0.3%). Turning the screw clockwise will increase the CO
2
level. On the EF150 and EF180, this adjustment should be made to the right hand gas valve only.
2
level, turning anti-clockwise
2
112