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For Climma Compact 9/EH M80018 S/N 4540 Sett. 141 Nominal
Capacity 8000Btu/h on SM2k #348:
Power consumption when cooling 925 Watts, when heating 1300
Heating element size 24 * 20 *3 cm
Heating element measured resistance is 40 ohms
The thermal protection fuse is a Microterm G4A
The hold temperature Tf is 121C or 128 C
It can interrupt a current of 10A at 250VAC
The thermoswitch is a Texas Instruments Klixon TH11CA091
The switching temperature is 90 Degrees Celcius
Texas Instruments Klixon is now part of Sensata.
All connections are crimped or rivetted as soldering with
tin/lead will not work in a heating element
SM2k #348 @Newry Northern Ireland
Op 08-11-2021 om 14:30 schreef CW Bill
the Climma 9 Compact unit, I have the value of the Klixon at RS 121, but I
am not sure what RS 121 stands for. I do not have the value
of the fuse. Do you have the values, and/or can you confirm
the RS 121 value?
To answer your specific questions:
With 220V on the element you should see it
cycling: When switching on the element should light up
like a bread toaster element. Then depending on airflow
and air temperature it reaches the temperature where the
Klixon switches opens the circuit. Then the element and
Klixon is cooled by the airflow and after a while the
Klixon closes it's contact again, without click.
220V = 1100Watts seems OK for a Climma 9HE which is
specified to provide 9000btu/hour for cooling and
Enclosed are pictures of:
*Thermostat Texas Instruments Klixon
*Overtemperature protection fuse
Both are in series with the heating
element but not necessarily in the exact locations I
indicated before. As said before these devices are made
in many different temperature ranges so be sure you
replace with the exact same ones.
SM2k #348 @Newry, Northern Ireland
Op 8 nov. 2021 04:56 schreef Alexey Mateosyan <alexey.mateosyan@...
Thank you for your answer to Mike's post (thank you
Mike). For my case, it looks like that the problem is
with overheating protection. And since:
1. max airflow is really huge, and climma in aft works
even with medium flow
2. I see 220v on electrical heating element constantly
3. On the other hand I can't hear any relay clicking,
at the moment when heating is gone
4. Current in the heating circuit is dropped from 5a
to 0, at that moment
I think that the root cause is inside the heater
itself, i.e. it could be one of those two things on
the picture (since they are sitting in series with the
heating element and basically can break the circuit),
the below one looks like thermistor, and the one
Is this the klixon thermostat marked on the picture?
How did you clean it, if it is the thing?
Aleksei @ Aletes SM2K#240