A.O. Smith BPD-400 - Manual (Page 13)

13
FILLING THE WATER HEATER
CAUTION
NEVER USE THIS WATER HEATER UNLESS IT IS COMPLETELY FILLED
WITH WATER. TO PREVENT DAMAGE TO THE TANK, THE TANK MUST
BE FILLED WITH WATER. WATER MUST FLOW FROM THE HOT WATER
FAUCET BEFORE TURNING "ON" GAS TO THE WATER HEATER.
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 water heater. NOTE: The cold water
supply valve must be left open when the water heater is in use.
3. To insure 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 new water piping for leaks. Repair as needed.
WIRING
You must provide all wiring of the proper size outside of the water
heater. You must obey local codes and electric company requirements
when you install this water heater.
If you are not familiar with electric codes and practices, or if you have
any doubt in your ability to connect the wiring to this water heater, contact
a local electrical contractor and/or the local electric utility.
WARNING
WATER HEATERS EQUIPPED FOR ONE TYPE VOLTAGE ONLY: THIS
WATER HEATER IS EQUIPPED FOR 110/120 VOLTS ONLY. DO NOT USE
THIS WATER HEATER WITH ANY VOLTAGE OTHER THAN THE ONE
SHOWN ABOVE. FAILURE TO USE THE CORRECT VOLTAGE CAN CAUSE
PROBLEMS WHICH CAN RESULT IN DEATH, SERIOUS BODILY INJURY
OR PROPERTY DAMAGE. IF YOU HAVE ANY QUESTIONS OR DOUBTS
CONSULT YOUR ELECTRIC COMPANY.
CAUTION
IF WIRING FROM THE FUSE BOX OR CIRCUIT BREAKER BOX WAS
ALUMINUM FOR THE OLD WATER HEATER, REPLACE IT WITH COPPER
WIRE. IF YOU WISH TO REUSE THE EXISTING ALUMINUM WIRE, HAVE
THE CONNECTION AT THE WATER HEATER MADE BY A LOCAL
ELECTRICAL CONTRACTOR AND/OR THE LOCAL ELECTRIC UTILITY.
FIELD INSTALLED WIRING
1. Provide a way to easily shut off the electric power when working
on the water heater. This could be with a circuit breaker or fuse
block in the entrance box or a separate disconnect switch.
2. Install and connect a circuit directly from the main fuse or circuit
breaker box. This circuit must be per applicable codes and have its
own fuse or circuit breaker.
3. Standard 1/2" conduit openings have been made in the water heater
junction box for side or bottom conduit connection.
4. Use wire nuts and connect the power supply wiring to the wires inside the
water heater’s junction box. MINIMUM LINE VOLTAGE WIRE NO. 14 AWG.
5. The water heater must be electrically "grounded" by the installer.
The unit will not operate unless it is properly grounded. A green
ground screw has been provided on the water heater's junction box.
Connect ground wire to this location. For complete grounding details and
all allowable exceptions, refer to local codes or in the absence of local
codes, with the National Electrical Code, ANSI/NFPA 70 (current edition).
6. Close the wiring junction box cover.