Powers SH1434 Triple Valve User Manual
Page 2

1. Flush all piping thoroughly before installing.
2. Make sure all ball valve handles are in "OFF" position.
3. In order to make any temperature adjustment to the valves,
you must open end-of-line fixtures to ensure you have ade-
quate flow across the valve.
4. Use a thermometer at the showerhead or install an in-line
thermometer at the point-of-use.
Prior to Installation
2
SH1434TV & LFSH1434TV
1. Close the ball valve at the outlet of the SH1434 or LFSH1434
and MM434 or LFMM434 valve #2 & #3.
2. Open the ball valve at the outlet of the MM434 valve #1.
3. Open enough fixtures to meet the minimum flow requirement
of the MM434 or LFMM434 valve #1 as per table 2.
4. Set MM434 or LFMM434 valve #1 temperature (refer to IS-P-
MM430 if required).
5. Close ball valve at the outlet of the MM434 or LFMM434 valve
#1 and open the ball valve at the outlet of the MM434 or
LFMM434 valve #2. Repeat steps 3 and 4.
6. Close ball valve at the outlet of the MM434 or LFMM434 valve
#2 and open the ball valve at the outlet of the MM434 or
LFMM434 valve #3. Repeat steps 3 and 4.
7. Loosen the locknut at the top of the PRV. This must be all the
way out or you will be limiting range of the adjustment.
SH1434QV or LFSH1434QV
Table 2
1. Close the ball valve at the outlet of the SH1434 or LFSH1434
and MM434 or LFMM434 valve #2.
2. Open the ball valve at the outlet of the MM434 or LFMM434
valve #1.
3. Open enough fixtures to meet the minimum flow requirement
of the MM434 or LFMM434 valve #1 as per table 2.
4. Set MM434 or LFMM434 valve #1 temperature (refer to IS-P-
MM430 if required).
5. Close ball valve at the outlet of the MM434 or LFMM434 valve
#1 and open the ball valve at the outlet of the MM434 or
LFMM434 valve #2. Repeat steps 3 and 4.
6. Loosen the locknut at the top of the PRV. This must be all the
way out or you will be limiting range of the adjustment.
7. Adjust the PRV so the outlet pressure gauge (top) reads 15psi
less than the supply pressure gauge (bottom). Turning the
adjustment screw counterclockwise will increase the differ-
ential across the PRV (allowing the PRV to open later).
8. Close the ball valve at the discharge of the MM434 or
LFMM434 valve #2.
9. Open the ball valve on the outlet of the SH1434 or LFSH1434
valve.
10. Open enough fixtures to meet the minimum flow requirement
of SH1434 or LFSH1434 as per table 2.
11. Set SH1434 or LFSH1434 temperature (refer to IS-P- SH1430
if required).
12. Open all the ball valves at the outlets.
13. Verify outlet temperature remains at the set point.
14. For any problem, refer to Troubleshooting section of the
document or contact Powers' Technical Support Department
at 1.800.669.5430 or [email protected].
You must follow these procedures in order to properly adjust
your Hi/Lo System. You need flow greater than the minimum
shown in the capacity table across the valve in order to set a
maximum temperature.
Set Up Procedure
n
Installation Instructions
n
SH1434
#1 - MM434
#2 - MM434
SH1434 or
LFSH1434
#1 - MM434 or
LFMM434
#2 - MM434 or
LFMM434
Screw
Model
Min. Flow to ASSE 1017
MM434 and LFMM434
7 gpm (26 lpm)
SH1434 and LFSH1434
1 gpm (4 lpm)