Lennox EMEA DUO CU Série Notice Technique D'installation page 40

441
R404A fluid set by default into the regulator
For any other fluid, it's necessary to apply the following procedure to modify the fluid parameter into the
regulator.
1) ADVERTISEMENT
Before the fluid modification, make sure that the P_Rack, the sensors and the safety components are
provided accordingly. If you have any doubts, contact us.
2) COMPATIBLE FLUIDS DUO CU
-
Do not use any other fluid outside of these configurations
CU 57 don't work with the fluids R407A and R407F, the DUO CU 114 don't
- The DUO
the fluid R407F.
DUO CU 29
R404A
DUO CU 45 R404A
DUO CU 57 R404A
DUO CU 76 R404A
DUO CU 114
R404A
3) SHUTDOWN CONTROLLER
It's necessary to put the regulator in OFF to change the fluid: Put the installation in Manual mode (switch
auto/manu) and push the button reset.
Controller in ON
4) ACCESS TO MAIN MENU:
Click on Menu: the code is 0000 (click on enter to validate the number)
Annex 4 : Fluid change
R134a R407A
R134a R407A
R134a /
R134a R407A
R134a R407A
40/72 -
GB
R407F R448A
R407F R448A
/ R448A
R407F R448A
/ R448A
Controller in OFF
work with
R449A R450A
R449A R450A
R449A R450A
R449A R450A
R449A R450A
R513A
R513A
R513A
R513A
R513A
DUO CU