KWAD Green Energy ECO 10, Руководство пользователя и обслуживания

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Flow switch closed ON
/EE3
Low water flow, wrong
flow direction, or flow
switch failure.
Check if the
water flow is
enough and flow
in right direction,
or else the flow
switch could be
failed.
Power supply
connections wrong
(for 3 phase unit)
EE4 Wrong connection or
lack of connection
Check the
connection of
power cable
Inlet and outlet
water temperature
difference
malfunction
EE5 Water flow volume is
not enough, water
pressure difference is
too low
Check the water
flow rate or
water system is
jammed or not
Communication
failure
EE8 Wire connection is not
good
Check the wire
connection
7.2 Other malfunction and solutions (No display on controller)
Malfun
ctions
Observing Reasons Solution
Heat
pump
is
not
runnin
g
LED wire
controller
no display.
No power supply
Check cable and
circuit breaker if it is
connected
LED wire
controller.
displays the
actual time.
Heat pump under
standby
status
Startup heat pump to
run.
LED wire
controller
displays the
actual
water
temperature.
1. Water
temperature is
reaching to
setting value, HP
under constant
temperature
status.
2. Heat pump just
starts to run.
3. Under
defrosting.
1. Verify water
temperature setting.
2. Startup heat pump
after a few minutes.
3. LED wire controller
should display
"Defrosting".