Install Instructions

2
INSTALLATION
REQUIRED METHODS OF PIPING XL SERIES
OPERATION
1. Verify that the temperature of the hot water source is properly set and maintained. Shutoff and isolate the circulator pump.
2. Loosen LTR set screw located on temperature adjustment knob with allen wrench.
3. Turn on enough fixtures to flow approximately 5 GPM, turn knob clockwise until it stops (full cold) then counterclockwise until it
stops (full hot), three times to exercise the thermostatic element.
4. Set mixing valve to the desired temperature, (See warning tag for temperature set point). Tighten LTR set screw.
5. Shut off all fixtures. Setup is complete.
6. Turn on circulator. With all fixtures still off, (no water flowing) observe the circulation temperature until it stabilizes.
7. If temperature rises, close balance valve until desired temperature is reached
METHOD W
Required when TEMPERED WATER IS CIRCULATED.
METHOD #1
Required when TEMPERED WATER is NOT CIRCULATED. Only the hot water supply to the mixing valve can be circulated with this piping
arrangement.
FIXTURES, SUPPLIED BY TEMPERED WATER
BALL VALVE
COLD WATER SUPPLY
HOT WATER SUPPLY
CIRCULATE HOT WATER FROM END OF LINE BACK TO TANK
THERMOMETER
T
COLD SUPPLY
SOURCE
WATER
HOT
BALL VALVE
THERMOMETER
AQUASTAT
CIRCULATOR
C
A
FIXTURES, SUPPLIED BY TEMPERED WATER
CHECK VALVE
CHECK VALVE
BALANCE VALVE
CHECK VALVE
T
BALL VALVE
BALL VALVE
TRAP
HEAT