Instructions / Assembly

331552-002 – 21 –
EXPOSED
SUPPORT
WIRE
EXPOSED
SUPPORT
WIRE
PITTED ANODE ROD
Figure 14. Anode Rod
9. Apply Teflon
®
tape, or sealing compounds approved for
use with potable water, to the threads of the anode(s) and
install into the tank top.
10. Open the cold water supply valve and open a nearby hot
water faucet to purge air from the water tank as directed
in "Filling The Water Heater".
11. Check for leaks. Repair as required, and re-test.
12. Replace the covers and insulation.
13. Turn on the oil supply to the water heater.
14. Turn "ON" the electrical supply to the water heater.
Valve Washer Replacement
1. Turn "OFF" the electrical supply to the water heater.
2. Turn off the oil supply to the water heater.
3. Follow instructions in the "Draining And Flushing" section
to drain the tank.
4. Turning counterclockwise ( ), remove the hex cap below
the screw handle.
HANDLE AND
CAP ASSEMBLY
ALTERNATIVE
STEM HANDLE
WASHER
Figure 15. Drain Valve washer replacement
5. Remove the washer and put the new one in place.
6. Screw the handle and cap assembly back into the drain
valve and re-tighten using a wrench. DO NOT OVER
TIGHTEN.
7. Follow the instructions in the "Filling The Water Heater"
section.
8. Check for leaks. Repair as needed.
9. Turn on the oil supply to the water heater.
10. Turn "ON" the electrical supply to the water heater.
Cleaning Instructions, Flue Passages Of The JW F657
Heater
Refer to Figure 16 for components of the heater.
1. Remove the casing top and lift the insulation off
completely. It is necessary to disconnect the hot and cold
water lines and move them out of the way. Do not remove
the nipples from the tank.
2. Lift off the flue collector. The flue collector has a lip on
the outer edge which will allow a hook to grab the edge
to help lift it up.
3. Remove the flue baffles (4).
4. With a 76mm (3 in.) diameter wire brush, 1.2m (4 ft.) long,
remove any soot build-up which may be on the top head
or inside the flue collector.
5. Reassemble in reverse order. It may be necessary to
replace the gaskets around the nipples to seal them at the
flue collector. Replace the insulation and the casing top.
6. Reconnect the plumbing lines.
CASING TOP
FLUE
COLLECTOR
WIRE BRUSH
INSULATION
NIPPLES
HOOK
BAFFLE
Figure 16. Cleaning Flue Passages Of The JW F657
Heater
Shut Down For Extended Periods
When away for extended periods of time such as vacation,
and no freezing temperatures are expected:
1. Shut off the oil supply at the tank.
2. Shut off the cold water supply to the heater.
3. Turn "OFF" the electrical supply to the water heater.
4. Open an upstairs hot water faucet (to relieve any
pressure).
When freezing temperatures are expected:
1. Shut off the oil supply at the tank.
2. Shut off the cold water supply to the heater.
NOTE: It is recommended that all water lines
in the home be drained. Contact a qualified
plumber for directions applicable to the
heater.
3. Turn "OFF" the electrical supply to the water heater.
4. Connect a hose to the drain valve and drain as directed
in "Draining And Flushing".
5. Leave the drain hose attached as a reminder that the
tank has no water in it.