Installation Guide
3
Installation
Sizing Valve
For assistance in sizing and selection of the proper
valve, consult your local representative or Symmons
Customer Service.
Installing Valve
1) Flush piping thoroughly prior to installing.
2) Install valve so as to allow clearance for replacing 
 cartridge. Valve can be installed in any orientation.
VALVE 
CLEARANCE
Safety Cap
Retaining Nut
Cartridge
Valve Body
3-1/2”
(89 mm)
3) Connect valve input/ouput to supply ports.
 a. Hot port marked (H)
 b. Cold port marked (C)
 c. Mixed output port marked (M)
Setting Valve Temperature
1) Turn hot and cold water supply on.
2) Open faucet to allow hot water to ow for a
 minimum of one minute. For two handle faucets
 turn on hot water only. For single handle faucets
 turn on to the hot position.
3) Remove screw and cap.
4) Place thermometer in the outlet stream. Measure
 and accurately set temperature. Inlet temperature
 must be ± 10°F (5.55°C) of desired output.
5) To increase temperature turn stem counter-clock- 
 wise. To decrease temperature turn stem clock-
 wise.
 For single temperature applications adjust valve 
 outlet temperature with full ow of tempered
 water from tting.
 For dual temperature applications open 
 approximately 50% of all faucets to their full hot
 position to ensure proper operating temperature
 at peak demand.
6) Replace cap and screw once desired tempurature 
has been met
Note: Once the safety cap and screw have been 
installed the outlet temperature cannot be changed 
without repeating steps 2-6.
Warning: Water temperatures in excess of
110°F (43°C) may cause scalding, or
severe injury!






