[TRNSYS-users] Problem of convergence in modelling an heat pump in off state

[h8304506 at hkusua.hku.hk]

Dear Trnsys users.

I try to simulate a heat pump system from the basic component level  
(compressor, condenser coil, expansion valve and evaporator coil).  I  
have created separate proformas for each component, and linked them up  
in a closed loop.  However, I get one problem when writing the source  
codes.  How can I define the output of each component when the system  
is off (say by using a scheduler or temperature controller), but still  
maintain convergence in the closed loop?  Your reply is highly  
appreciated.

Best Regards
LEE, Chun Kwong
PhD student
Department of Mechanical Engineering
University of Hong Kong