Heat Pump - Cvzt & Vvzt; Condenser Fan Operation; Thermostat, Cvzt, & Vvzt - Trane Symbio 700 Application Manual

Table 14. Dual unloading compressor cooling staging
Unit Operation
Cooling Stage 1
Cooling Stage 2
Heat Pump – CVZT & VVZT
Table 15. Single compressor cooling staging
Unit Operation
Cooling Stage 1
Table 16. Dual compressor cooling staging (manifold or independent)
Unit Operation
Cooling Stage 1
Cooling Stage 2

Condenser Fan Operation

Thermostat, CVZT, & VVZT
Table 17. Single condenser fan systems (cooling only and heat pump)
Unit Operation
Compressor 1 Output ON
Compressor 2 Output ON
Compressor 1 Output ON +
Compressor 2 Output ON
N N o o t t e e : : If Defrost is active on Heat Pump units, then Condenser Fan Output 1 OFF.
Table 18. Dual condenser fan - shared airstream (cooling only)
Unit Operation
Compressor 1 Output ON
Compressor 2 Output ON
Compressor 1 Output ON +
Compressor 2 Output ON
Table 19. Dual condenser fan - independent airstream (cooling only and heat pump)
Unit Operation
Compressor 1 Output ON
Compressor 2 Output ON
Compressor 1 Output ON +
Compressor 2 Output ON
ACC-APG001A-EN
Unit Response
Compressor 1 Output ON + Compressor 2
Output ON
Compressor 1 Output ON +Compressor 1
Unloader Solenoid ON + Compressor 2 Output
ON +Compressor 2 Unloader Solenoid ON
Unit Response
Compressor 1 Output ON
Unit Response
Comrpessor 1 Output ON
Compressor 1 Output ON + Compressor 2
Output ON
Unit Response
Condenser Fan Output 1 ON
Condenser Fan Output 1 ON
Condenser Fan Output 1 ON
Unit Response
Condenser Fan Output 1 ON +Condenser Fan
Output 2 ON
Condenser Fan Output 1 ON +Condenser Fan
Output 2 ON
Condenser Fan Output 1 ON +Condenser Fan
Output 2 ON
Unit Response
Condenser Fan Output 1 ON
Condenser Fan Output 2 ON
Condenser Fan Output 1 ON +Condenser Fan
Output 2 ON
A A p p p p e e n n d d i i x x A A
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