John Wood Electric Water Heaters - NEW - Manual (Page 10)

10
If, after manually operating the valve, it fails to completely reset and
continues to release water, immediately close the cold water inlet
to the water heater, follow the draining instructions, and replace the
temperature-pressure relief valve with a new one.
FILLING THE WATER HEATER
Never use this water heater unless it is completely full of
water. To prevent damage to the tank and heating element(s),
the tank must be completely filled with water. Water must
flow from the hot water faucet before turning “ON” electrical
supply to the water heater. The manufacturer will not warrant
any elements damaged by failure to follow instructions.
To fill the water heater with water:
1. Close the water heater drain valve by turning the handle
to the right (clockwise). The drain valve is on the lower
front of the water heater.
2. Open the cold water supply valve to the water heater.
NOTE: The cold water supply valve must be left open
when the water heater is in use.
3. To ensure complete filling of the tank, allow air to exit by
opening the nearest hot water faucet. Allow water to run
until a constant flow is obtained. This will let air out of the
water heater and the piping.
4. Check all water piping and connections for leaks. Repair
as needed.
5. Never alter or modify the certified construction of the water
heater or its components, or bypass any safety features.
Doing so voids all warranties.
T&P VALVE and PIPE INSULATION (On Selected Models)
1. Locate the temperature and pressure relief valve on the water
heater (also known as a T&P relief valve). See Figure 5.
2. Locate the slit running the length of the T&P relief valve
insulation.
3. Spread the slit open and fi t the insulation over the T&P relief
valve. See Figure 5. Apply gentle pressure to the insulation to
ensure that it is fully seated on the T&P Relief Valve. Once seated,
secure the insulation with duct tape, electrical tape, or equivalent.
IMPORTANT: The insulation or tape must not block the discharge
opening or hinder access to the manual relief lever (Figure 5).
Ensure a discharge pipe is installed into the T&P valve discharge
opening per the instructions in this manual.
4. Locate the hot water (outlet) & cold water (inlet) pipes to the water
heater.
5. Locate the slit running the length of a section of pipe insulation.
6. Spread the slit open and slip the insulation over the cold water
(inlet) pipe. Apply gentle pressure along the length of the insulation
to ensure that it is fully seated around the pipe. Also, ensure that
the base of the insulation is fl ush with the water heater. Once
seated, secure the insulation with duct tape, electrical tape, or
equivalent.
7. Repeat steps 5 and 6 for the hot water (outlet) pipe.
8. Add additional sections of pipe insulation as needed.
T&P Relief Valve
T&P Relief Valve
Drain Line
Manual Relief Lever
T&P Relief Valve Insulation
FIGURE 5.