Hubbell Electric Heater Company 238-44422-00L ユーザーズマニュアル

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GENERAL OPERATION 
 
When the switch is closed, the operation of this electric water heater is 
automatic.  The thermostats are preset to the “HOT” setting to provide a 
water temperature of approximately 120°F (49°C) to reduce the risk of scald 
injury. 
 
 
Care must be taken whenever using hot water to avoid scalding injury.  
Certain appliances require high temperature hot water (such as dishwashers 
and automatic clothes washers).
 
 
TO FILL THE WATER HEATER 
1.  Close the water heater drain valve (if provided) by inserting a standard 
flat head screwdriver into the slot and turning clockwise. 
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 and pressure relief valve and the 
hot and cold water connections. 
 
TO DRAIN THE WATER HEATER 
Should it become necessary to completely drain the water heater, make sure 
you follow the steps below: 
1.  Disconnect the power supply to the water heater.  Consult the plumbing 
professional or electric company in your area for service. 
2.  Close the cold water supply shut-off valve. 
3.  Open the drain valve (if provided) on the water heater by inserting a 
standard flat head screwdriver into the slot and turning counter-
clockwise.  The drain valve has threads on the end that will allow 
connection of a standard hose coupling.  For those models not equipped 
with a drain valve, disconnect cold water inlet piping at a convenient 
connection location as close to an adequate drain as possible. 
CAUTION! THIS WATER MAY BE HOT. 
4.  Open a hot water faucet to allow air to enter the system. 
 
To refill the water heater, refer to “TO FILL THE WATER HEATER.” 
Before closing the switch to allow electric current to flow to the 
water heater, make certain that the water heater is full of water and 
that the cold water inlet valve is open.  Complete failure of the 
heating element(s) will result if they are not totally immersed in 
water at all times.
  Failure of the element(s) due to dry-firing is not 
covered by warranty.
 
CAUTION
 
Scalding may occur within five (5) seconds at a temperature setting of 
140°F (60°C).