Bradford White RE2H50S 1NCTT Series Installation/Operation Instruction Manual page 17

Water Supply Connections cont.-
For protection against excessive temperatures and pressure, install temperature and pressure protective
equipment required by local codes, but not less than a combination temperature and pressure relief valve
certified by a nationally recognized testing laboratory that maintains periodic inspection of production of
listed equipment or materials, as meeting the requirements for Relief Valves and Automatic Gas Shutoff
Devices for Hot Water Supply Systems, ANSI Z21.22. The combination temperature and pressure relief
valve shall be marked with a maximum set pressure, not to exceed the maximum working pressure of the
water heater. The combination temperature and pressure relief valve shall also have an hourly rated
temperature steam BTU discharge capacity not less than the hourly input rating of the water heater.
Install the valve into an opening provided and marked for this purpose in the water heater, and orient it or
provide tubing so that any discharge from the valve exits only within 6 in (15.2 cm) above, or at any distance
below the structural floor, and does NOT contact any live electrical part. The discharge opening must not be
blocked or reduced in size under any circumstances.
To Fill the Water Heater:
1. Close the water heater drain valve. This
water heater utilizes a ball valve; when
closing the valve, the stem will spin
indefinitely. Confirm it is closed by ensuring
the slot on the stem is perpendicular to the
valve body.
2. Open the cold water supply shut-off valve.
3. Open several hot water faucets to allow air
to escape from the system.
4. When a steady stream of water flows from the faucets, the water heater is
filled. Close the faucets and check for water leaks at the water heater drain
valve, combination temperature pressure relief valve, and the hot and cold
water connections.
"F11" Fault Code During Installation:
will appear. Turn the power OFF, finish filling the tank with water, then turn on the power back ON.
NOTE: The Dry Tank Detection feature on the tank is for the aid of the installer and should NOT be used as
the primary control to prevent operation with an empty or partially filled tank. Power should NEVER be applied
to the water heater until the installer has verified that the tank is filled, and all air has been purged from the
system.
Electrical Notices:
across L1 and L2 wires. Failure to do so will void the warranty and can result in 120 VAC applied to water
heater, which may damage the compressor or other electrical components. If the 4-conductor wire is supplied
to the water heater, then cap the neutral, and connect the remaining wires.
NOTE: Regarding Utility Power-Management Devices (sometimes called Peak Load Reduction Switches) –
Some power-management switching devices or even some basic timer switches exist that reduce voltage from
240 VAC to 120 VAC during high-electricity-demand periods. These devices must be removed from the circuit
providing power to the water heater because of the potential water heater damage noted above. Switching
devices which cut power from 240 VAC to 0 VAC on a periodic basis is acceptable.
"bAd line" Fault Code During Installation:
receiving the correct voltage as a result of incorrect wiring. To correct this fault, turn the power OFF to the
water heater, correct the wiring issue, then turn the power back ON.
Do NOT incorrectly wire electrical connections. 240 VAC or 208 VAC must be applied
CAUTION
If the unit is powered on without a full tank, the error code "F11"
If a "bAd line" is shown on the display, the water heater is not
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