Trane Tracer VV550 Installation, Operation And Maintenance Manual page 25

Table 15.Algorithm type and control sequence descriptions (continued)
Occupancy
Control mode mode
Ventilation flow Occupied
control
Unoccupied
Airflow tracking Occupied and
control unoccupied
Table 16.Possible heat options
Local heat
a
1 No local heat
2 PWM electric (1 or 2 stages)
3 PWM electric (3 stages)
4 Staged electric (1 or 2 stages)
5 Staged electric (3 stages)
6 On/Off hot water (1 stage)
7 Modulating hot water
8 No local heat
9 No local heat
10 No local heat
11 PWM electric (1 stage)
12 PWM electric (2 stages)
13 Staged electric (1 stage)
14 Staged electric (2 stages)
15 On/Off hot water (1 stage)
16 On/Off hot water (1 stage)
17 Modulating hot water
a. Ventilation flow control only supports these types of heat.
b. The fan is optional, none, serial, or parallel.
c. Modulating hot water, local or remote, is always on HEAT1 (J9 closed) and HEAT2 (J10 open).
CNT-SVX17G-EN
Description
Controller controls to the active airflow setpoint and modulates the heating
capacity to keep the discharge air temperature at the active discharge air
temperature setpoint. A discharge air temperature sensor is required if reheat
is present. A space temperature sensor is not required. A diagnostic is generated
on a failure of the space temperature sensor input if it was ever valid.
Controller closes the air valve. All local heating capacity is disabled.
Controller supports one airflow tracking control algorithm. The controller
modulates the air valve to keep airflow at the calculated airflow setpoint. Neither
a space temperature nor a discharge air temperature sensor is required.
Remote heat
No remote heat
No remote heat
No remote heat
a
No remote heat
a
No remote heat
a
No remote heat
a, c
No remote heat
Electric (1 stage)
On/Off hot water (1 stage)
Modulating hot water
Electric (1 stage)
Electric (1 stage)
Electric (1 stage)
Electric (1 stage)
On/Off hot water (1 stage)
Modulating hot water
c
On/Off hot water (1 stage)
Heat1 J9
Local 1
Local 1
Local 1
Local 1
Local 1
Close
Remote 1
Remote 1
c
Close
Local 1
Local 1
Local 1
Local 1
Local 1
c
Close
Close
Sequence of Operations
Heat2 Heat3
J10 J11
b
Local 2 Fan
Local 2 Local 3
b
Local 2 Fan
Local 2 Local 3
b
Fan
b
Open Fan
b
Fan
b
Fan
b
Open Fan
b
Remote 1 Fan
Local 2 Remote 1
b
Remote 1 Fan
Local 2 Remote 1
b
Remote 1 Fan
Open Local 1
Open Remote 1
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