美國人家用電熱水器
安裝說明書和使用及維護指南(12)

如果在冰凍季節關閉熱水器，則需要將熱水器內的水排干。建議每6個月就要將熱水器內膽徹底排水和沖洗一次，除去在運行期間可能累積的沉淀物。請按照下列步驟排去內膽內的水：
　　The water heater should be drained if being shut down during freezing temperatures. It is recommended that the tank be drained and flushed every 6 months to remove sediment which may buildup during operation. To drain the tank perform the following steps:

1. 關閉熱水器電源。
   Turn off the power to water heater.

2. 關閉冷水進水閥，打開附近的熱水水龍頭。
   Close the cold water inlet valve and open a nearby hot water faucet.

3. 用一條軟管將排污閥連接到適當的排污口處。
   Connect a hose to the drain valve and terminate it to an adequate drain.

　　重要提示：排水軟管額定耐溫最小不能低于93oC。如果排水軟管的額定溫度沒有達到上述要求，請打開冷水進水閥，打開附近的熱水水龍頭，直到水不熱為止。
　　Important: Drain hose should be rated for at least 200°F. If the drain hose does not have this rating, open the cold water inlet valve and open a nearby hot water faucet until water is no longer hot.

1. 打開熱水器排污閥和附近的熱水水龍頭。排泄內膽內的所有水。如果需要，用水沖洗內膽，清除沉淀物。
   Open the water heater drain valve and the nearest hot water faucet. Allow all the water to drain from the tank. Flush the tank with water as needed to remove sediment.

2. 關閉排污閥，重新向內膽注水，重新恢復電源。
   Close the drain valve and refill the tank, and restore power.

　　如果打算長期關閉熱水器，則排污閥應該保持開啟狀態。
　　If the water heater is going to be shut down for an extended period, the drain valve should be left open.

　　注：對于臺面型熱水器的排水，需要拆卸排水觀察蓋板上的緊固螺絲。通過往下拔將蓋板從熱水器上卸下來。
　　NOTE: When draining Table Top models, remove the screw securing the drain access cover. Remove the cover by pulling down and away from the water heater