Install Instructions

REQUIRED METHODS OF PIPING TM VALVES
(RECIRCULATED HOT WATER SYSTEMS)
METHOD #1
METHOD #1
Required when hot water supply is to be
circulated to a master mixer or individual
thermostatic mixing valves which are a
substantial distance from the hot water source. It
is used primarily in a building with several
risers, with tempered water in each riser
controlled by a separate master mixer. NOTE:
The engineer must determine maximum
distance which can be run, i.e. maximum
allowable time for hot water to reach user with
one shower head operating, based upon code
requirements and/or good practice.
METHOD #2
METHOD #2 setup INSTRUCTIONS
Before any attempt is made to adjust this system, be sure the temperature of the hot water at the source is properly set and
maintained.
1. Be sure system is piped in accordance with Method #2.
2. Shut off circulator.
3. Open enough fixtures to flow 2 TO 4 GPM.
4. Set mixing valve to the desired temperature, (note Warning Tag attached to the pointer of the valve).
5. Shut off all fixtures. Note: At this point, be sure NO water is being drawn through any fixture until the temperature in the
recirculated line has been set.
6. Open the balancing valve approximately 1/2 way and start the circulator. Make sure no water is being drawn.
7. Observe the temperature until it stabilizes.
8. Close the ball valve slightly if the temperature is too hot, or open if it is too cold and again let the temperature stabilize.
Repeat until the desired recirculated temperature is set.
3
CIRCULATE HOT WATER FROM END OF LINE BACK TO TANK
(THIS PIPING IS NOT TO BE USED FOR AN ENTIRE BUILDING!)
HOT SUPPLY
COLD SUPPLY
BALL
VALVE
TO FIXTURES
TEMPERED WATER
ASSE
1017
C
T
CHECK
VALVE
BALANCING
VALVE
CIRCULATOR
AQUASTAT
TEMPERED FIXTURES
TEMPERED
RETURN
HIGH TEMPERATURE RETURN
COLD
SUPPLY
HEAT
TRAP
C
CIRCULATOR
TEMPERED
BALL VALVE FOR
SETUP (OPTIONAL)
HIGH TEMPERATURE FIXTURES (IF APPLICABLE)
CHECK
VALVE
ISOLATION
VALVE
HOT
WATER
SOURCE
(SEE NOTE BELOW)
NOTE:
FOR MULTIPLE TEMPERED LOOPS, A
BALANCING VALVE AND CHECK
VALVE MUST BE INSTALLED ON EACH
LOOP AFTER TEMPERED FIXTURES