I am simulating a building which has about 48 tons cooling load. When I try to connect cooling coil type 697 with absorption chiller type 677, I get the following error message.

"TRNSYS Message 118 : The subroutine SAT of the utility routine PSYCHROMETRICS, which calculates the thermodynamic properties of moist air, has been called with a temperature below absolute zero (-273 C) Please check the type routine which calls the psychrometrics routine for possible sources of errors.

Reported information : Error 118"

If i reduce the cooling capacity of the cooling coil, the error message vanishes but chilled water temperature approches to 500 C.

Can anybody help me with this?