[TRNSYS-users] Flow of water thru Type927 when it is off

[Richard Thygesen]

Hi.

Is it possible to have  water flow thru type 927 when the heat pump is off? In real heat pumps the circulation pump is on constantly to provide heat to the heating system above an outdoor set point temperature for example 17°C (62.6 °F).
When I control the circulation pump to only be on during heat pump operation it works perfectly but when I set it to work constantly above a certain outdoor temperature I get convergence errors.

Any suggestions on how to solve this?

Best regards
Richard Thygesen

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