Carrier R080-528 - Manuals

2 Step 2 — Install Piping NOTE: The units have 2 circuits. Perform all of the followingpiping installation procedures on both A and B circuits.REMOVE MINIMUM LOAD PORT PLUGS AND IN-STALL FITTINGS — Plugs must be removed from theseports and replaced with O-ring seal fittings. Note that plugswere fact...

3 30GXN,R UNITS ONLY — Using good brazing practice,braze the 5 / 8 -in. minimum load tubing to the copper nipple on the discharge line (minimum load port) between the condensercoil and oil separator. See Fig. 1, 3A and 3B. Step 3 — Dehydrate and Recharge Circuit — When piping has been completed, lea...

4 BALLVALVE SEE DETAIL C FIELD INSTALLED PIPINGTO CIRCUIT A DISCHARGE LINE MINIMUM LOAD PORTCIRCUIT A FIELD INSTALLEDPIPING TOCIRCUIT B DISCHARGELINE MINIMUM LOAD PORTCIRCUIT B O-RING SEALFITTING SOLENOIDVALVE DETAIL C MINIMUM LOADCONTROL PORTS CIRCUIT A (080-138)CIRCUIT B (150, 160) CIRCUIT B (080-...