Damn screwy late call...... about 7:30 got a call from Tennants! No answer from rental company for 2 hrs. About about 20 min after I get their call the rental company calls.... 3 level 5 system house... NO HEAT! No hot water. Finally after talking to my boss the rental co calls back and says boiler in that house. They use water coils for heat in the ahu used for ac. There are HPs wired for ac. anyways... LONG story short.... wasnt much water in the boiler. manually filled it and got them heat. Couldnt bleed the master bedroom properly though. Coil is above the bleeder. Also reset the HW heater.... got a 20 dollar tip!