SERVICE VALVES
SERVICE PORT CAP
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| SERVICE PORT |
VARIOUS TYPES | SERVICE PORT |
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| CORE |
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| OPEN TO BOTH INDOOR AND |
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| CLOSED) INSERT HEX | |
| OUTDOOR UNITS |
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| WRENCH HERE | |
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SERVICE PORT CAP | VALVE STEM |
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SERVICE PORT | SERVICE PORT |
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CORE |
| TO INDOOR |
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| (VALVE STEM |
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| UNIT |
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| SHOWN OPEN) | STEM CAP | ||
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| INSERT HEX |
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| WRENCH HERE | TO OUTDOOR |
| CLOSED TO BOTH |
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| UNIT | ANGLE−TYPE | INDOOR AND OUTDOOR |
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| UNITS | |
TO INDOOR |
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| SERVICE VALVE |
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UNIT | STEM CAP | (FRONT−SEATED | TO INDOOR UNIT | |
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| CLOSED) | |
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TO OUTDOOR UNIT | ANGLE−TYPE SERVICE VALVE |
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| (BACK−SEATED OPENED) |
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WHEN SERVICE VALVE IS CLOSED, THE SERVICE PORT IS OPEN TO THE LINE SET AND INDOOR UNIT.
WHEN SERVICE VALVE IS OPEN, THE SERVICE PORT IS OPEN TO LINE SET, INDOOR AND OUTDOOR UNIT.
To Access Service Port:
A service port cap protects the service port core from contamination and serves as the primary leak seal.
1.Remove service port cap with an appropriately sized wrench.
2.Connect gauge set to service port.
3.When testing is completed, replace service port cap and tighten as fol- lows:
S With Torque Wrench: Finger tighten and torque cap per Table 1.
SWithout Torque Wrench: Finger tighten and use an appropriately sized wrench to turn an additional 1/6 turn clockwise.
Operating Angle Type Service Valve:
TO OPEN ROTATE STEM COUNTERCLOCKWISE 90°.
TO CLOSE ROTATE STEM CLOCKWISE 90°.
SERVICE PORT
SERVICE PORT CORE
SERVICE PORT CAP
TO OUTDOOR UNIT
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| 1/6 TURN | |
11 12 | 1 | 2 | |
10 |
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98 7 | 6 | 543 | |
BALL (SHOWN CLOSED)
VALVE STEM
STEM CAP
BALL−TYPE SERVICE
VALVE
1.Remove stem cap with an appropriately sized wrench.
2.Use a service wrench with a hex−head extension (3/16" for liquid line valve sizes and 5/16" for vapor line valve sizes) to back the stem out counterclockwise as far as it will go.
Operating Ball Type Service Valve:
1.Remove stem cap with an appropriately sized wrench.
2.Use an appropriately sized wrenched to open. To open valve, rotate stem counterclockwise 90°. To close rotate stem clockwise 90°.
Reinstall Stem Cap:
Stem cap protects the valve stem from damage and serves as the primary seal. Replace the stem cap and tighten as follows:
SWith Torque Wrench: Finger tighten and then torque cap per Table 1.
SWithout Torque Wrench: Finger tighten and use an appropriately sized wrench to turn an additional 1/12 turn clockwise.
NOTE
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| 1/6 TURN | |
11 12 | 1 | 2 | |
10 |
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98 7 | 6 | 543 | |
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Figure 2. Angle and Ball Service Valves
Page 5
XC17 SERIES