[TRNSYS-users] Type 121b Furnace

[Marijke Steeman]

Dear Trnsys users, 

I am using Type 121b as a preheater for the outdoor air. I combined the heater with a controller (type2) that
makes sure the air is heated whenever the outdoor air temperature is below 16°C. This controller gives a control function to type 121b. I've put the setpoint of the heater to 16°C.
(I ignore heat losses), but every time the outdoor temperature is already 16°C before heating up, 
the heater heats still heats up the air and the temperature becomes > 50 or 60°C. 
Can someone help me with this?

Kind regards, 

Marijke Steeman
PhD-student 
Architecture and Urban Planning
Ghent University 
+32(0)92643752
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