Trane Tracer VV550 User Manual

102 CNT-SVX17G-EN
Appendix D: Reheat Actuation Schedule Tables
Reheat Actuation Schedule With No Fan Present
The reheat actuation operation with no fan present is described in the following tables:
• Table 65; Local heat only with no fan present
• Table 66; Remote heat only with no fan present
• Table 67; Local and remote heat with local
priority and no fan present
• Table 68; Local and remote heat with remote priority and no fan present
Table 65. Local heat only with no fan present
Configuration Method of control
Local Remote Stage 1 Stage 2 Stage 3
PWM electric 
(1 to 3 stages)
Not applicable
Local PI capacity loop
Each stage represents an equal percentage of total capacit
y PWM Output (one stage = 100%; two
stages = 50% each; three stages = 33.33% each). Total capacity is limited by communicated
auxiliary heat enable.
On/Off electric 
(1 to 3 stages)
Not applicable
Local thermostatic
On: Zt < HSP
Off: Zt  HSP + 0.5°F
(0.28°C)
Local thermostatic
On: Zt < HSP – 1°F (0.56°C)
Off: Zt  HSP – 0.5°F (0.28°C)
Local thermostatic
On: Zt < HSP – 2°F
Off: Zt  HSP – 1.5°F
Each stage represents an equal percentage of total capac
ity. Total capacity is limited by
communicated auxiliary heat enable.
ON/Off hot water
(1 stage)
Not applicable
Local thermostatic
On: Zt < HSP
Off: Zt  HSP + 0.5°
F
(0.28°C)
Not applicable Not applicable
Total capacity is limited by
com
municated auxiliary heat
enable.
Not applicable Not applicable
Modulating hot
water
Not applicable
Local PI capacity loop
Modulating valve capacity = Total capacity
Valve drive Incrementally open/closed
Total capacity limited by communicated au
xiliary heat enable
Not applicable
Table 66. Remote heat only with no fan present
Configuration Method of control
Local Remote Stage 1 Stage 2 Stage 3
Not applicable
On/Off electric 
(1 stage)
Remote thermostatic
On: Zt < HSP
Off: Zt  HSP + 0.5°
F
(0.28°C)
Limited by communicated
auxiliar
y heat enable.
Not applicable Not applicable
Not applicable
ON/Off hot water
(1 stage)
Remote thermostatic
On: Zt < HSP
Off: Zt  HSP + 0.5°F
(0.28°C)
Limited by communicated
auxiliar
y heat enable.
Not applicable Not applicable
Not applicable
Modulating hot
wat
er
Remote PI capacity loop
Modulating valve capacity = Total capacity
Valve drive Incrementally open/closed
Total capacity limited by communicated au
xiliary heat enable
Not applicable
Abbreviations: Zt = Zone temperature; HSP = Heating setpoint
Abbreviations: Zt = Zone temperature; HSP = Heating setpoint

Trane Tracer VV550 Specifications

General

Brand	Trane
Model	Tracer VV550
Category	Controller
Language	English