Operating Angle 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.
SERVICE PORT CAP
| SERVICE PORT CORE |
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| (VALVE STEM SHOWN |
TO INDOOR |
| CLOSED) INSERT HEX |
UNIT | (VALVE STEM SHOWN OPEN) | WRENCH HERE |
| INSERT HEX WRENCH HERE |
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SERVICE PORT | STEM CAP | |
CORE |
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TO OUTDOOR UNIT |
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ANGLE−TYPE SERVICE VALVE | ANGLE−TYPE SERVICE VALVE | |
(FRONT−SEATED CLOSED) | ||
(BACK−SEATED OPENED) | ||
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When service valve is OPEN, the service port is | WHEN SERVICE VALVE IS CLOSED, THE SERVICE PORT IS OPEN | |
open to linE set, indoor and outdoor unit. | TO THE LINE SET AND INDOOR UNIT. |
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°.
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 follows:
TO OPEN ROTATE STEM COUNTERCLOCKWISE 90°.
TO CLOSE ROTATE STEM CLOCKWISE 90°.
TO INDOOR UNIT
BALL (SHOWN CLOSED)
VALVE
STEM
SWith 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.
Reinstall Stem Cap:
1/6 TURN
11 12 1
10 2
98 7 6 543
SERVICE PORT 
SERVICE PORT
CORE
SERVICE PORT
CAP
TO OUTDOOR
UNIT
STEM CAP
Stem cap protects the valve stem from damage and serves as the primary seal. Replace the stem cap and tighten as follows:
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| 1/12 TURN | ||
S | With Torque Wrench: Finger tighten and |
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| then torque cap per table 1. |
| 11 12 | 1 |
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S | Without Torque Wrench: Finger tight- | 10 |
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| 2 | |
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| en and use an appropriately sized | 9 |
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| 3 |
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| wrench to turn an additional 1/12 turn | 8 | 7 | 6 | 5 | 4 | |
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| clockwise. |
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NOTE A label with specific torque requirements may be affixed to the stem cap. If the label is present, use the specified torque.
Figure 2. Angle and Ball Service Valves
Page 5
XC16 SERIES
