17
MidiHeat EHD
MA45-33 GB translated from the original language of the instruction (SE)
ENGLISH
A ( 1 : 1 )
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Rev
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by:
Date
Drawn
by:
Date
Draw
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Asse
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Surface
treatm
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ISO
27
68-1
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E
Box
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94
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Phone +46
8 59
411050,
Fa
x +46
8
59086
880
TS
2012-06-
21
överhettnings
skydd
Demont
ering lock
M11
668
0
A
In case of any error
The display shows an error code, see below. Contact your installer to fix the error.
Error codes
Code Cause
Action
E1
Flow switch indicates low flow
Check/increase water flow
E2
Pool water temp. sensor is not con-
nected, or is shorted/broken
Check that the temp sensor is connected. Replace the broken temp. sensor.
E6
The overheating protection has tripped
Warning! The unit is energized until the first contactor although overheating
protection has been triggered.
Reactivate thermal protection manually by
removing the small protective cap and pressing
the reset button.
If the overheating protection continues to be tripped:
contact your installer or other qualified service
technician.
E10
Circulation pump is inactive
Turn on the circulation pump.
E12
Communication error
Check settings for Master/Slave communications. Check the communica-
tion cable
HC
For high temperature on the circuit
board
Check that the ambient temperature is not higher than 40°C.
HP
Water temperature is higher than 45°C
Check that other heat sources are not enabled
In Master/slave control system, an error code and a number in parenthesis will be seen. It indicates which of the connected
devices have actually failed.
Example: E1 (2) = indicates that Slave unit 2 has an error
A reservation for possible misprints. The right to change technical specifications and assortment is reserved.
Color deviations may occur due to technical reasons.
Maintenance
Note that the electric heater is working only when water circulates in the system. It will not be heated if the circulation pump is
switched off or if the desired pool temperature has been reached.
If the electric heater does not heat the pool water for a long period it is recommended to turn off all main power switches.
If the water in the system is still for more than a week, the electrical heater must be emptied of water.
At the risk of freezing, the power to the electric heater and the pump should be turned off and both the electric heater drained of
water, see “Draining the electric heater” below.
When backwashing and cleaning the pool system filter, the electric heater must be turned off.
In areas with hard water, the electrical heater cartridges have a lime coating that reduces the electric heater power and the
cartridges service life Contact an authorized electrician in order to inspect the immersion heaters of the tank periodically and
remove this coating when necessary.
Draining the electric heater
1.
Turn off the electric heater and turn off all main power before draining.
2.
Close shut off valve (pos.12, fig. 2).
3.
Open shut off valve (pos.13, fig. 2).
4.
Disconnect the electric heater outlet connection (marked with red arrow) a little to let air in.
The electric heater holds around 15 liters of water. Take care that all water comes out.
5.
Tighten the electric heater outlet connection when the electric heater is completely empty.
6.
Let drain valve stay open (water from the rest of the system may remain).
Reset button
Protective cap
