Plumbing - Trane HUV Installation, Operation And Maintenance Manual

Figure 17. Steam piping: two-way valve (top) and three-
way valve (bottom)
Two-way valve
Closed
A
Open
A
Three-way valve
AB<->B
B
AB
A
UV-SVN02C-EN
B
B
AB<->A
AB
Figure 18. Cartridge removal tool
Use the following steps to complete cartridge assembly
removal:
1. Remove valve actuator.
2. Remove the cartridge assembly from the valve body
with the enclosed tool.
3. Solder the valve in accordance with normal soldering
practices.
4. Re-install the cartridge after soldering by tightening
until it bottoms out. The top surface of the cartridge
will be flush with the top edge of the body casting.
Note: Do not over-tighten. Maximum torque is 40
in·lb.
5. Replace valve actuator and wire in accordance with
instructions.

Plumbing

The valve may be plumbed in any angle but preferably not
with the actuator below horizontal level of the body. Make
sure there is enough room around the actuator for
servicing or replacement.
For use in diverting applications, the valve is installed with
the flow water entering through the bottom AB port and
diverting through end ports A or B. In mixing applications
the valve is installed with inlet to A or B and outlet through
AB.
Mount directly to the tube or pipe. Do not grip the actuator
while making or tightening plumbing connections. Either
hold valve body by hand or attach an adjustable spanner
(38 mm/1-1/2") across the hexagonal or flat faces on the
valve body (see Figure 19, p.
Installation—Piping
26).
25