HWP30N/HWP40N Forced Circulation Heater User Manual Page 4 of 14
1.
OVERVIEW
HWP30N/HWP40N is smart forced circulation water heater of engine. When engine operation
temperature is below 4ºC, engine liquid coolant/lubricating oil may be coagulated to solid state in
starting phase and lose lubrication or cooling effects, so that it may damage the engine. Therefore,
heater shall be installed for engine to ensure normal starting and running.
It has lamp indication function, which can indicate all kinds of heater statuses. Heating
temperature can be set by users, and dry burning prevention and overheating protection are fitted.
This product is suitable for various engines with (15~30)L displacement.
2.
PERFORMANCE AND CHARACTERISTICS
Micro-processor design is applied for the control part, precise temperature sampling, heating
temperature can be set from control panel.
4-bit digital tube display is applied, which can display current coolant temperature, user defined
temperature, accumulated running time, accumulated energy consumption, current voltage
parameters etc.
Water flow sensor is fitted, which can quickly detect shortage of water, pipe gas gathering, pipe
clog, in order to prevent heater from dry burning, gas gathering etc. unhealthy phenomenon.
Circulation pump and heater are controlled separately; water pump is firstly started before heating,
and then heater starts after delay for 5s; when it reaches pre-set temperature point, heater power is
disconnected immediately; then water pump power is cut off after delay for 60s; this is to prevent
heat gathering so that it can prolong pump life.
Manual test function is fitted, which can check whether heating body and water pump is able to
operate normally through panel button.
Fine cast aluminum material is used for heater shell.
Stainless steel inner heating pipes.
Water drain valve is fitted at the bottom of the heater, which can be used on demand.
This product can work normally at -40ºC temperature.
