IMPORTANT SAFEGUARDS AND WARNINGS
HEATITCABLE.COM
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Important safeguards and warnings
• Please read the Instruction Manual and keep it properly before installing and using the product.
• The electric pump must be reliably grounded before use, and leakage protection devices should be installed.
• It is forbidden to touch the electric pump during operation.
• Dry running of the electric pump is strictly prohibited.
• It is strictly prohibited for children, and persons with no capacity or limited capacity to use the product without supervision
of guardians (such as not being taught the safe use method of the product and understanding the risks involved).
• The pump system must be able to withstand the maximum pump pressure.
• The manufacturer shall not be held responsible for any consequences caused by the user modifying the electric pump
without authorization or operating the electric pump beyond the operating conditions.
Thank you very much for choosing our products. Please read the Instruction Manual carefully and keep it
properly before installation and use.
GENERAL INSTALLATION INSTRUCTIONS
The product is installed in the backwater pipeline of the water heater.
Conveying liquid
The conveying liquid is softened water and thin, clean, non-corrosive, non-explosive liquid without solid particles, fibers
and mineral oil, and the PH value of the medium is between 6.5 and 8.5.
The requirements for the operation system of the electric pump are shown in the following figure 2 :
Medium and ambient temperature
The system temperature (t1) must be always higher than the ambient temperature (t2) in order to avoid electrical short
circuit of junction box caused by condensation of pump body(see figure 3).
Maximum pressure borne by electric
pump 145 PSI
If the pressure difference between hot and
cold water pipes is greater than 1.45 PSI,
the backwater device may not return water
normally, thus affecting the use effect.
Min. liquid temperature·····35.6
℉
Max. liquid temperature···158
℉
System temperature (t1)
Ambient temperature (t2)
Min. ambient temperature····35.6
℉
Max. ambient temperature····104
℉
figure 2
figure 3
