[TRNSYS-users] get problem with the five stages thermostat

[Jay Zhu <zhujiang1124@gmail.com>]

Hey, everyone,

I get a very often problem for most of my simulations when i use the five stages thermostat type 108.

I connect type 108 with the building type 56 and air source heat pump type 665, and i set the heating setpoint and cooling setpoint as 20C and 26C seperately, and the dead band is still 2C.   The thermostat keep switch the air souce heap pump between cooling and heating very often, even when summer time, the heating will be switch on, 

Later i have to change the heating setpoint to 18C , but it still has some problem. 

Does anyone kindly tell me what the problem is ? And how should i play with this controller?

 

Thank you ! 

 

 

Jiang Zhu