Allied EL090XPSST Информация о подразделении - Страница 10
Просмотреть онлайн или скачать pdf Информация о подразделении для Тепловой насос Allied EL090XPSST. Allied EL090XPSST 15 страниц.
Печатать страницу3 - When testing is completed, replace service port cap
and tighten as follows:
•
With Torque Wrench: Finger tighten and then tight-
en per table 3.
•
Without Torque Wrench: Finger tighten and use an
appropriately sized wrench to turn an additional 1/6
turn clockwise as illustrated in figure 6.
To Open Liquid Line Service Valve:
1 - Remove stem cap with an adjustable wrench.
2 - Using service wrench and 5/16" hex head extension
if needed (part #49A71) back the stem out
counterclockwise until the valve stem just touches
the retaining ring.
3 - Replace stem cap. Tighten finger tight, then tighten
an additional 1/6 turn. Do not over torque.
Liquid And Suction Line Service Valve
(Valve Open)
insert hex
wrench here
service
port
to outdoor coil
Schrader
service port
valve
cap
Liquid And Suction Line Service Valve
(Valve Closed)
service
port
to outdoor coil
service
port cap
Schrader valve open
to line set when valve
is closed (front seated)
FIGURE 7
To Close Liquid Line Service Valve:
1 - Remove stem cap with an adjustable wrench.
2 - Using service wrench and 5/16" hex head extension
if needed (part #49A71), turn stem clockwise to seat
the valve. Tighten firmly.
3 - Replace stem cap. Tighten finger tight, then tighten
an additional 1/6 turn. Do not over torque.
stem cap
to indoor coil
stem cap
insert hex
wrench here
to indoor coil
(valve front seated)
Service (Ball) Valve
Some units are equipped with a full service ball valve, as
shown in figure 8. One service port that contains a valve
core is present in this valve. A cap is also provided to seal
off the service port. The valve is not rebuildable so it must
always be replaced if failure has occurred.
Opening the Suction Line Service Valve
1 - Remove the stem cap with an adjustable wrench.
2 - Using
a
counterclockwise for 1/4 of a turn.
3 - Replace the stem cap and tighten it firmly.
Closing the Suction Line Service Valve
1 - Remove the stem cap with an adjustable wrench.
2 - Using a service wrench, turn the stem clockwise for
1/4 of a turn.
3 - Replace the stem cap and tighten firmly.
SUCTION LINE (BALL TYPE) SERVICE VALVE
USE ADJUSTABLE WRENCH
ROTATE STEM CLOCKWISE 90 TO CLOSE
ROTATE STEM COUNTERCLOCKWISE 90 TO OPEN
TO COMPRESSOR
SERVICE PORT
CAP
III-START-UP
Use the following procedure prior to starting up the unit for
the first time.
1 - Rotate fan to check for binding.
2 - Inspect all factory- and field-installed wiring for
loose connections.
3 - Open the liquid line and suction line service valves
to release the refrigerant charge (contained in
outdoor unit) into the system.
4 - Replace the stem caps and secure finger tight, then
tighten an additional one-sixth (1/6) of a turn as
illustrated in figure 9.
5 - Check voltage supply at the disconnect switch. The
voltage must be within the range listed on the unit's
nameplate. If not, do not start the equipment until
you have consulted the power company and the
voltage condition has been corrected.
Page 10
service
wrench,
turn
STEM CAP
STEM
BALL
(SHOWN OPEN)
FROM INDOOR COIL
SERVICE PORT
VALVE CORE
FIGURE 8
the
stem