Amana ASXS61A Serie Instrucciones De Instalación página 17

S P t
yStem reSSure eSting
Once all of the refrigerant line connections are completed.
Perform a 3-step nitrogen pressure test.
1. Pressurize the system with nitrogen to 150 PSIG and
hold for 3 minutes. If any pressure drops occur, locate
and repair leaks and repeat step 1.
2. Pressurize the system with nitrogen to 325 PSIG and
hold for 5 minutes. If any pressure drops occur, locate
and repair leaks and repeat step 1.
3. Pressurize the system with nitrogen to 450 PSIG and
hold for 4 hours. If any pressure drops occur, locate
and repair leaks and repeat step 1.
S V o
top alVe peration
The figure below shows the name of each part required in
handling the stop valve. At the time of shipment, the stop
valve is closed.
• B
e Sure to oPen the StoP valve
• i
nadequate torque may cauSe leakage of refrigerant
Opening Procedure
1. Remove the valve lid and use a hexagonal wrench to
turn valve counterclockwise.
2. Turn valve until shaft stops.
3. Then turn valve until designated torque as shown in
below table is achieved (3.5 - 5.0 ton only due to back
sealing type valve).
4. Put valve lid on valve.
Closing Procedure
1. Remove the valve lid and use a hexagonal wrench to
turn valve clockwise.
2. Turn valve until shaft stops.
3. Then turn valve until designated torque as shown in
below table is achieved.
4. Put valve lid on valve.
<1.5 - 3.0 ton>
Valve lid
*Rotate lightly until
it stops, then tighten
1/4 - 1/2 rotation.
Service port
(r )
ecommended
M
ethod
CAUTION
.
.
Gas stop valve
Hexagonal wrench
Open
Close
<3.5 - 5.0 ton>
Service port
Valve lid
Stop valve
Hexagonal wrench
Rotate the Align the recess of the
valve lid 90° valve lid and the T-joint
to the right or on the valve body, then
to the left. remove the lid.
* The illustrations above refer to 3.5 - 5.0 ton only.
Stop Valve
Stop valve
Tonnage Piping
size
Liquid 3/8"
1.5 - 2.0
ton
Gas 3/4"
Liquid 3/8"
2.5 - 3.0
ton
Gas 7/8"
Liquid 3/8"
3.5 - 5.0
ton
Gas 7/8"
Service Port
Service Port
(3.5 - 5.0 ton only)
17 17
ASXS6S̲3P679063-2D̲ALL̲220729.pdf
Open
Close
Cap
Service port
Back sealing
*To be sealed,
follow step 3 of
Opening Procedure.
Valve lid
Hole for
hexagonal wrench
Shaft
* The illustration shows
the removal procedure.
Perform the actions in
the reverse order to
reattach.
Tightening
Type
torque
4 - 6 lb·ft
Front
14 - 16 lb·ft
sealing
4 - 6 lb·ft
type
14 - 16 lb·ft
Front and 4 - 5 lb·ft
back seal-
14 - 16 lb·ft
ing type
Tighten Torque
7.9 - 10.8 lb·ft
Wrench
size
3/16"
5/16"
3/16"
5/16"
4 mm
8 mm