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©2020 Trane
Trane has a policy of continuous product and product data improvement and reserves the
right to change design and specifications without notice. We are committed to using
environmentally conscious print practices.
Trane - by Trane Technologies (NYSE: TT), a global climate innovator - creates
comfortable, energy efficient indoor environments for commercial and residential
applications. For more information, please visit trane.com or tranetechnologies.com.
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Wiring Communication Link
The Tracer VV551 VAV controller communicates with the building automation system and with other controllers over a LonTalk® communication link. Comm5 is the Trane implementation of LonTalk® protocol. For instructions on
LonTalk® communication wiring, refer to the
Tracer Summit™ V17 Daily Operations Guide
, BMTX-SVU01 or to the installation manual for the applicable building automation system.
Input/Output Terminal Wiring
The input/output wiring terminals for the VV551 controller are a combination of fixed function and application-specific connections. All input/output terminal wiring for the VV551 controller must meet the following requirements:
• All wiring must be in accordance with the National Electrical Code™ (NEC) and local codes
• Use only 18–22 AWG, stranded, tinned-copper, unshielded, twisted-pair wire
• Binary input and output wiring should be a maximum length of 300 ft (100 m)
• Analog input and output wiring should be a maximum length of 300 ft (100 m)
• Do not run input/output wires in the same wire bundle with any A/C power wires
• A pressure sensor can be connected with up to 300 feet of tubing and up to 60 feet of wire
The following tables describe input/output terminals, ratings, and the heat/fan output configurations by application.
Table 1.
Inputs and output terminals
Analog Inputs
Input Description
Terminal
Label
Rating
Space temperature
• TB3_1
• TB3_2
ZONE
10,000
at 77°F (25°C)
Space setpoint
• TB3_2
• TB3_3
SET
1,000
potentiometer
Primary/discharge air temperature • TB3_5
• TB3_6
AUX
10,000
at 77°F (25°C)
Primary flow
• J2-1 GND
• J2-2 signal
• J2-3 VDC
FLOW
NA
Binary Input
input Description
Terminal
Label
Rating
Occupancy/generic
• TB4_1
• TB4_2
BI 1
Powered contact
Apply dry contact only
0 Vac = Open
24 Vac = Closed
Binary Outputs
Binary input
Terminal
Label
Rating
Heat 1
J9
HEAT 1
Triac, 24 Vac,
maximum output 12 VA
Heat 2
J10
HEAT 2
Triac, 24 Vac,
maximum output 12 VA
Heat 3/fan
J11
HEAT 3
Triac, 24 Vac,
maximum output 12 VA
Air valve close
J1-3
ACTUATOR
Triac, 24 Vac,
maximum output 12 VA
Air valve open
J1-4
ACTUATOR
Triac, 24 Vac,
maximum output 12 VA
Table 2.
Heat/fan output configurations by application
Heat 1
Heat 2
Heat 3
No Fan
Series or Parallel
No Reheat
None
None
None
Fan
Hot
Water
2-Position
1 Stage Local Reheat
Local Hot Water ON/OFF
None
None
Fan
1 Stage Remote Heat
Remote Hot Water ON/OFF
None
None
Fan
2 Stages
Local Hot Water ON/OFF
Remote Hot Water ON/OFF
None
Fan
Modulating
Local Reheat
Local Hot Water Closed
Local Hot Water Open
None
Fan
Remote Reheat
Remote Hot Water Closed
Remote Hot Water Open
None
Fan
Both
Local Reheat
Remote Hot Water Closed
Remote Hot Water Open
Local Hot Water ON/OFF
Fan
(a)
(a) When the controller is configured with either a series or parallel fan, Heat 3 is used to control the fan and not the third stage of heat.
Remote Reheat
Local Hot Water Closed
Local Hot Water Open
Local Hot Water ON/OFF
Fan
(a)
Electric
Heat
Local
Reheat
PWM
1 Stage
Local PWM Electric Heat Stage 1 None
None
Fan
2 Stages
Local PWM Electric Heat Stage 1 Local PWM Electric Heat Stage 2 None
Fan
3 Stages
Local PWM Electric Heat Stage 1 Local PWM Electric Heat Stage 2 Local PWM Electric Heat Stage 3 Fan
(a)
Staged
1 Stage
Local Staged Electric Heat 1
None
None
Fan
2 Stages
Local Staged Electric Heat 1
Local Staged Electric Heat 2
None
Fan
3 Stages
Local Staged Electric Heat 1
Local Staged Electric Heat 2
Local Staged Electric Heat 3
Fan
(a)
Remote Heat
Remote Electric Heat Stage 1
None
None
Fan
Both
PWM
1 Stage
Local PWM Electric Heat Stage 1 Remote Electric Heat Stage 2
None
Fan
2 Stages
Local PWM Electric Heat Stage 1 Local PWM Electric Heat Stage 2 Remote Electric Heat Stage 3
Fan
(a)
Staged
1 Stage
Local Staged Electric Heat 1
Remote Electric Heat Stage 2
None
Fan
2 Stages
Local Staged Electric Heat 1
Local Staged Electric Heat 2
Remote Electric Heat Stage 3
Fan
(a)
Agency Listings and Compliance
The European Union (EU) Declaration of Conformity is available from
your local Trane
®
office.
BAS-SVN114G-EN 01 Jun 2020
Supersedes 3270 3399 F (Mar 2016)
