Trane Tracer ZN.520

Configuration
CNT-SVX04A-EN
77
Table 41 Coil temperature definition table
Note 1: Table 42 on page 78 identifies the logic for determining the main coil temperature for main coil changeover applications.
Cooling source Heating source Main coil Auxiliary coil Description
None None
Hydronic (changeover)
Hydronic, dedicated coil heating Hot NA 2-pipe heat only
Steam Hot NA 2-pipe steam heat only
Compressor
Electric NA NA Electric heat only
(Force Flo)
Hydronic (changeover)+ dedicated hydronic
Hydronic (changeover)+ electric
Hydronic, main
coil changeover
None
Hydronic, main coil changeover (Note 1) NA 2-pipe changeover
Dedicated hydronic
Steam
Compressor
Electric
Hydronic coil changeover + auxiliary coil
heating
(Note 1) Hot 4-pipe changeover
Hydronic (changeover)+ electric (Note 1) NA 2-pipe changeover w/ electric heat
Hydronic, main
coil cooling
None Cold NA 2-pipe cooling only
Hydronic (changeover)
Hydronic, dedicated coil heating Cold Hot 4-pipe
Steam Cold Hot 4-pipe (steam heat)
Compressor
Electric Cold NA 2-pipe cool only w/ electric heat
Hydronic (changeover)+ dedicated hydronic
Hydronic (changeover)+ electric
DX None
Hydronic (changeover)
Dedicated hydronic NA Hot DX unit vent w/ hot water heat
Steam NA Hot DX unit vent w/ hot water heat
Compressor
Electric NA NA DX unit vent w/ electric heat
Hydronic (changeover)+ dedicated hydronic
Hydronic (changeover)+ electric