FERGUSON.COM/PROSELECT
Distributed Exclusively by Ferguson and Wolseley Canada
©2021 Ferguson Enterprises, LLC 0621 2944469
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WARNING
Fire or Explosion Hazard.
Can cause severe injury, death or property damage.
Follow these warnings exactly:
1. To avoid dangerous accumulation of fuel gas, turn off gas supply
at the appliance service valve before starting installation and
perform the gas leak test after completion of installation.
2. Always install a sediment trap in gas supply line to prevent
contamination of ignition system control.
3. Follow the appliance manufacturer instructions if available;
otherwise, use these instructions as a guide.
WARNING
Scalding Hazard.
Can cause burns, severe injury or death.
Always use a direct replacement sensor
assembly when replacing a temperature sensor.
Location
These units are mounted on the outside of the water heater tank.
See Fig. 2.
Fig. 2. Mounting the control on the water heater tank.
Install Control to Water Tank
1. To install the water heater control, screw the assembly into spud until the
bracket is square. Use a maximum torque of 31 ft-lbs plus one turn.
2. Follow steps in the Connect Gas Supply section.
IMPORTANT
These water heater system controls are shipped with protection for the
inlet and outlet tappings. Do not remove the protection until you are
ready to connect the piping.
Connect Gas Supply
All piping must comply with local codes and ordinances or with the National
Fuel Gas Code (ANSI Z223.1 NFPA No. 54), whichever applies. Tubing
installation must comply with approved standards and practices.
1. Use a new, properly reamed pipe free from chips. If tubing is used, make
sure the ends are square, deburred and clean. All tubing bends must be
smooth and without deformation.
2. Ensure that gas supply is turned off.
3. Run pipe or tubing to the water heater control. If tubing is used, obtain a
tube-to-pipe coupling to connect the tubing to the control.
4. Install a sediment trap in the supply line to the water heater control.
See Fig. 3.
WARNING
EXPLOSION HAZARD.
FAILURE TO FOLLOW PRECAUTIONS CAN RESULT IN A
GAS-FILLED WORK AREA. SHUT OFF THE MAIN GAS SUPPLY
BEFORE REMOVING END CAP. TEST FOR GAS LEAKAGE WHEN
INSTALLATION IS COMPLETE.
ALL BENDS IN METALLIC TUBING SHOULD BE SMOOTH.
Fig. 3. Install a sediment trap in the supply line.
WARNING
Explosion Hazard.
Can cause severe injury, death or property damage.
Check for gas leaks with soap and water solution any time work is
done on a gas system.
5. Apply a moderate amount of good quality pipe compound, leave two end
threads bare. Do not use pipe dope on the outlet. See Fig. 4
6. Remove the seals over the water heater control inlet and outlet,
if necessary.
7. Connect the pipe to the water heater control inlet and outlet. Use a wrench
on the square end of the water heater control. Maximum torque on the inlet
is 40 ft-lbs; maximum torque on the outlet is 30 ft-lbs.
8. Position compression fitting in pilot outlet and engage threads. See Fig. 5
for controls and connections. Turn until finger tight, then tighten one more
turn with a wrench. Do not overtighten.
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