Trane UV-SVN02B-EN, Installation Operation & Maintenance, Page: 29 / 52

UV-SVN002-EN 29
Installation
Isolation Valves
Installation
The valve can be mounted in any posi-
tion on a vertical line. If the valve is
mounted horizontally, the actuator must
be even with or above the center line.
Make sure there is enough room to
remove actuator cover for servicing.
Mount the valve on the tube or pipe.
NOTE: Make sure the flow through the
valve is in the direction indicated by the
arrow stamped on the valve body.
Servicing/Removal of valves
The actuator can be removed from the
valve body. Removing the actuator is
recommended of soldering is being
conducted near the valve. To remove
the actuator:
1. Place the manual operating lever to
the Open position (See Figure 34)
2. Depress the locking button and lift
actuator until it separates from the
valve body.
To install the actuator to the valve
body:
1. Align the slot on the shaft of the
valve with the valve body notch on
side of body (See Figure 35)
2. Install body valve into pipe.
3. Wiring connections may be made
either before or after actuator
in stalled on body.
4. Place the manual operating lever
on the actuator in the OPEN position.
5. Align actuator coupling to slot on
the shaft of the valve body and fit the
head onto the valve body to ensure
the shaft seats correctly (Figure 35).
6. Press the actuator and valve body
until it secures together.
Soldering procedures are as follows:
1. Remove actuator as stated earlier
2. Place valves on the pipe. Rotate
valve stem so the shaft slot points at
the notch in the side of the body (90
O
to flow direction). This protects the
plug inside the valve by removing it
from the seat. (See Figure 36)
3. Sweat the joints, keeping outer sur
face free from solder.
NOTE: Do not
use silver solder due to high
temperature requirements.
Figure 34:
Removing
isolation
valve
actuator
Figure 35:
Installing
isolation
valve
actuator
Figure 36: Preparation for soldering
Figure 33: Proper mounting for
isolation valves