Service Valve | ||
Valve Closed | Stem Cap | |
Service Port |
| |
| Insert hex | |
To outdoor coil | wrench here | |
Service |
| |
Port Cap |
| |
| To indoor coil | |
Schrader valve open | (valve front seated) | |
to line set when valve is | ||
| ||
closed (front seated) |
| |
Insert hex | Stem Cap | |
wrench here |
| |
Service Port |
| |
To outdoor coil |
| |
Service Port Cap | To indoor coil | |
| ||
Schrader | Valve Open | |
Valve | ||
Figure 10
To Open Liquid or Suction Line Service Valve:
1.Remove stem cap with an adjustable wrench.
2.Use a service wrench with a
3.Replace the stem cap. Tighten finger tight, then tighten an additional 1/6 turn.
To Close Liquid or Suction Line Service Valve:
1.Remove the stem cap with an adjustable wrench.
2.Use a service wrench with a
3.Replace the stem cap. Tighten finger tight, then tighten an additional 1/6 turn.
Suction Line (Ball Type) Service Valve
Suction line (ball type) service valves function the same way as the other valves; the difference is in the construc- tion (see Figure 11).
Ball Type Service Valve
(Valve Open)
Use adjustable wrench. To open, rotate stem counterclockwise 1/4 turn (90°). To close, rotate stem clockwise 1/4 turn (90°).
Figure 11
The ball valve is equipped with a service port with a
Leak Testing
After the line set has been connected to the indoor and outdoor units, the line set connections and indoor unit must be checked for leaks.
WARNING
Fire, Explosion, and Personal Safety Hazard.
Failure to follow this warning could result in damage, personal injury, or death.
Never use oxygen to pressurize or purge refrigeration lines. Oxygen, when exposed to a spark or open flame, can cause damage by fire and/or an explosion, that could result in personal injury or death.
Using an Electronic Leak Detector
1.Connect the high pressure hose of the manifold gauge set to the suction valve service port. (Normally the high pressure hose is connected to the liquid line port; however, connecting it to the suction ports helps
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