29
CO2 set
| Instruction
manual
rev-03_May 2022
8.2.2
.
The CO
2
dosing unit
6
WARNING!
Make sure the burner system and CO
2
set are completely shut down before performing maintenance
on the CO
2
dosing unit:
f
Use the control switch on the control panel to close the fuel supply to the burner.
f
Interrupt the mains power supply to the burner system and CO
2
set.
f
Shut down the CO
2
set with the main switch on the control panel.
6
WARNING!
All mechanical screw connections must be retightened prior to every Periodic Maintenance.
Required tools:
•
Ring wrenches or adjustable spanners
•
Allen wrenches
•
Screwdriver (slotted)
To perform Periodic Maintenance on the dosing unit of the CO
2
set, do the following:
1. Perform a visual check of all components for correct functioning.
2. Check the following parts for dirt or defects. Clean or repair if necessary:
a. The fan.
b. The fan motor.
c. The air inlet cover.
d. The 2-way valve.
3. Check if the 2-way valve opens smoothly.
a. Clean if necessary.
4. Check the welds on the mounting frame for any defects.
a. Repair if necessary.
5. Check the sleeve connections on the flue gas inlet and fan housing outlet for tears.
a. Replace if necessary.
6. Check if the safety precautions are in place and function correctly (see §
