18
MidiHeat EHD
MA45-33E
ENGLISH
A ( 1 : 1 )
Art.no.
Rev.no.
Scale
Designed by:
Approved by:
Revised by: Date
Drawn by: Date
Drawing number
Assembly drawing no.
Surface treatment
part of ISO 2768-1
The tolerance class in accordance with this
E
Box 728, SE-194 27 Upplands Väsby, Sweden
Phone +46 8 59411050, Fax +46 8 59086880
TS
2012-06-21
överhettningsskydd
Demontering lock
M11668 0
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Art.no.
Rev.no.
Scale
Designed by:
Approved by:
Revised by: Date
Drawn by: Date
Drawing number
Assembly drawing no.
Surface treatment
part of ISO 2768-1
The tolerance class in accordance with this
E
Box 728, SE-194 27 Upplands Väsby, Sweden
Phone +46 8 59411050, Fax +46 8 59086880
TS
2012-06-21
överhettningsskydd
Demontering lock
M11668 0
A
Cap
Reset button
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 a 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 and the
whole system drained of water. Open the system drain valve and leave it open until it is time to start up the pool again.
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.
Emptying the electric heater
1. Turn off the electric heater and turn off all main power before emptying.
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).
Recovery button
Protective cap
Protective cap
