Page 8
XP16
(VALVE STEM SHOWN
CLOSED) INSERT HEX
WRENCH HERE
SERVICE PORT CORE
SERVICE PORT CAP
ANGLE−TYPE SERVICE VALVE
(FRONT−SEATED CLOSED)
SERVICE PORT
CORE
TO OUTDOOR UNIT
STEM CAP
(VALVE STEM SHOWN OPEN)
INSERT HEX WRENCH HERE
TO INDOOR
UNIT
ANGLE−TYPE SERVICE VALVE
(BACK−SEATED OPENED)
BALL (SHOWN
CLOSED)
SERVICE PORT
CORE
TO INDOOR UNIT
TO OUTDOOR
UNIT
TO
OPEN
ROTATE STEM
COUNTERCLOCKWISE 90°.
TO
CLOSE
ROTATE STEM
CLOCKWISE 90°.
SERVICE PORT
SERVICE PORT
CAP
STEM CAP
VALVE
STEM
SERVICE VALVES
ANGLE AND BALL
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.
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,
roate stem counterclockwise 90°. To close rotate stem clock-
wise 90°.
1
2
3
4
5
6
7
8
9
10
11 12
1/12 TURN
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:
D
With torque wrench: Finger tighten and
torque cap per table 1.
D
Without torque wrench: Finger tighten and
use an appropriately sized wrench to turn
an additional 1/6 turn clockwise.
1
2
3
4
5
6
7
8
9
10
11 12
1/6 TURN
WHEN
SERVICE
VALVE
IS
CLOSED
,
THE
SERVICE
PORT
IS
OPEN
TO
THE
LIN
E
SET
AND
INDOOR
UNIT.
When service valve is
OPEN
, the service port is
open to linE set, indoor and outdoor unit.
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:
D
With Torque Wrench: Finger tighten and
then torque cap per table 1.
D
Without Torque Wrench: Finger
tighten and use an appropriately
sized wrench to turn an additional
1/12 turn clockwise.
NOTE A label with specific torque requirements may be affixed to the stem cap. If the label is present, use the specified torque.
Figure 3. Angle and Ball Service Valves
