Hubbell-electric-heater-company A User Manual download pdf (Page 17)

ANNUAL INSPECTION

1. Flush tank as follows

a. Shut off power supply.

b. Close valve on hot water outlet piping.

c. Open valve on drain piping.

d. Cold water inlet line pressure will be strong enough to flush sediment from the bottom of the

tank out through the drain. Let water run for 3-4 minutes.

e. Close drain valve.

f. Open hot water valve.

g. Turn power supply ON.

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Hubbell-electric-heater-company A User Manual Page 17