Robinair 34134Z Refrigerant Recovery, Recycle, Recharge Unit - Manual (Page 21)

Recover/Recycle/Recharge Unit
19
Operation
Before recharging the A/C system, replenish the A/C system oil. Add only the
amount of oil that was removed during recovery. If no oil was removed, do not
add any oil.
NOTES:
• Refer to the A/C system manufacturer for correct oil replacement
procedures and oil specifications.
• Replacing A/C system components may require
adding more oil. Refer to component manufacturer
for recommendations.
1. Refer to amount of oil that was removed during
recovery (see step 4 in Draining the A/C System
Oil ).
2. Fill oil inject bottle with new oil:
• Add 1–2 ounces (30–60 mL) more oil than was
recovered.
• Add any additional oil required by an A/C
component change.
3. Note the level of new oil in the bottle.
4. Place an o-ring around the oil inject bottle at the level
the oil will be at after replenishing the system.
For example, if the bottle’s oil level is at 4 ounces, and you need 1/2 ounce
of oil to replenish the A/C system, place the o-ring at the 3-1/2 ounce level.
5. Open the appropriate panel valve per the A/C system manufacturer’s
recommendations.
6. Push and hold the Oil Inject button until the system is replenished with the
desired amount of oil.
NOTE: To avoid getting air into the A/C system, do not remove all the oil from
the oil inject bottle.
To ensure the replenishment of oil into the A/C system, recharge the A/C
system, leaving the panel valves in the same position as the A/C system
manufacturer’s recommendations. Refer to instructions on the next page to
purge the air from the internal storage vessel prior to recharging.
Replenishing the A/C System Oil
Oil Inject
Bottle
O-ring
Oil Drain
Bottle