Table of Contents
Advertisement
Note: If you do not need to use the water heater in winter in cold areas, please empty the
water in the tank in case freezing damage.
Emptying the Water Heater
If the water heater needs to be turned off for maintenance or long-time shutoff in winter or cold area,
please empty it by following the instructions below:
1. Cut off power supply of the water heater;
2. Close cold water inlet valve;
3. Open drain valve;
4. Lift up the handle on the T&P relief valve, water will flow out from the drain valve.
Warning: When reusing, the water heater must be filled with water before powered on.
About Water Quality
Poor water quality will have a detrimental effect on the water heater and its operation and /or life
expectancy. If you are unsure of your water quality, information can be obtained from your local water
supply authority.
•
This water heater can be used in areas where the total dissolved solid content (TDS) in water
is less than 1000mg/L, but when TDS is more than 600 mg/L, it will accelerate the
consumption of power anode rod and shorten service life of the water heater.
•
Saturation index of water that is prone to scaling:
The calcium carbonate in the water can deposit on the surfaces of hot metal, which can cause
scaling. When the saturation index of water is greater than 0.4, the scaling will be obvious. The
higher the water temperature and water consumption, the more serious the scaling will be. In
this case, it is required to install an expansion control valve after the non-return valve on the
cold-water pipeline of the water heater.
When the saturation index of water is less than -1.0, its corrosiveness will be very strong and it
can dissolve copper pipes, but it will not have any effect on the water heater itself.
P a g e | 19
Advertisement
Table of Contents
