Lennox EMEA DUO CU Série Notice Technique D'installation page 43

Annex 6 : External temperature offset modification
Offset is set by default into the regulator
For fluid R134a, R450A and R513A, it's necessary to apply the following procedure to modify it 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) ACCESS TO MAIN MENU:
Click on Menu: the code is 0000 (click on enter to validate the number)
3) MODIFICATION OF THE OFFSET
1) Research of the condensers menu, use the arrows ▲ and ▼ and validate with the arrow ◄
(ENTER):
2) Menu
3) Condensers
4) Energy saving
5) Make pass the submenu until the mask DAD06 concerning the setpoint
6) Enter in the setting with the arrow ◄ (ENTER)
7) Use the arrows ▲ and ▼ to set the new value and validate with the arrow ◄ (ENTER).
Setpoint to select according to the used unit:
Unit
Offset (°C)
8) Return in the principal menu with ESC
1-2
DUO CU
DUO CU 29 DUO CU 45
9 10
GB
DUO CU 57
12
3
-
43/72 -
DUO CU 76 DUO CU 114
9 12
4-5
6