Cpr Adjustment - Carrier Viento 200 Operation & Service Manual

Operation & Service Manual
Installation Commissioning
jam nut
settting screw
cap
Carrier Transicold Europe
Settings

CPR adjustment

31/03/07
1. Connect manifold to CPR fitting.
2. Start the unit in Heating or Defrost mode.
3. Check compressor speed: 2400 rpm.
4. Remove CPR cap.
5. Adjust CPR to get gauge pressure value with hexagonal
socket head wrenches (n°8) :
To raise the suction pressure : turn the setting screw
clockwise
To lower the suction pressure: turn the setting screw
counterclockwise.
CPR adjustment
R134a
Viento 200 3 bar
Viento 300 2.2 bar
Viento 350 2.8 bar
6. When the setting has been adjusted, tighten the jam nut
securely against the setting screw to prevent any
movement of the setting screw due to vibrations in the
unit.
7. Replace the cap.
R404A
2.7 bar
LA HA
1,85 bar 1.25 bar
LA HA
3.4 bar 1,8 bar
Viento - Installation/Rev- #52/54