1312
Tech Tips
General
1. Store in the self purge or recover position. Do not store in the
CLOSED position as trapped air and refrigerant can expand and
damage components.
2. For extended storage, purge with nitrogen, set to RECOVER, and
screw non-sealing caps onto the ports.
3. Recovery machines are not vacuum pumps and should not be
used for deep evacuations.
4. Do not run the machine without the mesh screen filter (page 30).
Doing so will void the warranty and damage the machine.
5. Understand the refrigerant safety data sheet (SDS).
Setup
1. Know the refrigerant of the system and make sure your recovery
cylinder matches that type.
2. Hoses:
Short as possible (3/8” hose with 1/4” fitting).
Core depressors removed.
Ball valve shutoffs instead of low loss fittings.
Replace if worn.
3. Manifold gauges are not necessary for recovery but can make it
more convenient and increase speed by having 2 system hook
ups.
4. Use a Schrader valve core removal tool to temporarily remove
valve cores from service valves.
5. Use the push-pull method if recovering over 30 lbs (14kg).
6. Evacuate your empty recovery cylinders to 29.6” Hg (75 cmHg)
before use.
7. Know how much refrigerant you expect to recover before
starting.
8. Ensure there’s enough room in the recovery cylinder to not
exceed 80% filled during the job, or monitor and have a second
cylinder ready.
9. Always purge hoses before recovery. If cylinder is too hot, use an
ice bath to reduce the temperature and pressure of the cylinder.
10. If cylinder pressure is higher than expected, you can purge non-
condensables into another cylinder (page 23).
Operational
1. Recover as much liquid as possible before recovering vapor.
2. Recovery is faster when the recovery cylinder is cooler.
3. You can use a heat gun to warm refrigerant lines to boil trapped
refrigerant.
4. Recover from both suction and liquid lines at the same time for
faster vapor recovery.
To Next Page
Loading...