Verasys ZEC310 User manual

Verasys ZEC310 Zone Damper and BYP200
Bypass Damper Controllers Installation Guide
Applications
The ZEC310 Zone Damper Controller and BYP200 Bypass
Damper Controller are components of the Verasys®
zoning system. The controllers run a pre-engineered HVAC
zoning application and provide the inputs and outputs
required for this application. These controllers ship with
a factory-configuration that makes them ready for field
installation on a Verasys system zone or bypass damper
assembly.
The zone and bypass damper controllers include advanced
operating modes and multiple features that ensure
occupant comfort. The ZEC uses a CO2 demand controlled
ventilation (DCV) mode to regulate CO2 levels within a
zone. The ZEC uses the DCV mode when fresh air enters
the zone during occupied times. Occupancy sensing
capability enables the controller to switch from occupied
mode to standby mode based on the presence of local
activity. Standby mode maximizes energy savings by using
higher cooling setpoints and lower heating setpoints than
in occupied mode.
See the Table 16 table for additional information about
optional sensor features. For further information about
Verasys configurations, refer to the Verasys System User’s
Guide (LIT-12012371).
North American emissions
compliance
United States
This equipment has been tested and found to comply with
the limits for a Class A digital device pursuant to Part 15
of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when
this equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instruction manual, may cause
harmful interference to radio communications. Operation
of this equipment in a residential area may cause harmful
interference, in which case the users will be required to
correct the interference at their own expense.
Canada
This Class (A) digital apparatus meets all the requirements
of the Canadian Interference-Causing Equipment
Regulations.
Cet appareil numérique de la Classe (A) respecte toutes
les exigences du Règlement sur le matériel brouilleur du
Canada.
Installation
Follow these guidelines when you install a Zone Damper
and Bypass Damper Controller:
• Transport the controllers in the original container to
minimize vibration and shock damage.
• Do not drop the controller or subject it to physical
shock.
Parts included
• One controller with removable zone and sensor buses
and power terminal blocks
• One self-drilling No. 10 x 25 mm (1 in.) screw
Materials and special tools needed
• 6 mm (1/4 in.) female spade terminals for input and
output wiring and crimping tool or spade-mounted
terminal blocks
• A small straight-blade screwdriver for securing wires in
the terminal blocks
• An 8 mm (5/16 in.) wrench or 10 mm (3/8 in.) 12-point
socket to tighten the square coupler bolt
• Shims or washers to mount the controller, if necessary
• A power screwdriver, 100 mm (4 in.) extension socket,
or a punch drill, and 3.5 mm (9/64 in.) drill bits to mount
the ZEC
• A pliers to open and close the damper
• 3.97 mm (5/32 in.) ID poly tubing
Mounting
Safety guidelines
Follow these safety guidelines when you mount a Zone
Damper and Bypass Damper Controller:
• Ensure that the mounting surface can support the
controllers and any user-supplied enclosure.
• Mount the controller on a hard, even surface whenever
possible.
• Use shims or washers to mount the controller securely
and evenly on the mounting surface.
• Mount the controller in an area free of corrosive vapors
that matches the ambient conditions specified in the
ZEC310 Zone and BYP200 Bypass Controllers technical
specifications section.
• Provide at least 50 mm (2 in.) on the top, bottom,
sides, and front of the controller for cable and wire
connections and for adequate ventilation through the
controller.
• Do not mount the controller in areas where
electromagnetic emissions from other devices or wiring
can interfere with controller communication.
*24101431248D*
24-10143-1248 Rev. D
2019-07-01
(barcode for factory use only)
LC-ZEC310-0, LC-BYP200-0

• Avoid mounting the controller on surfaces with
excessive vibration.
• Wear the appropriate personal protective equipment
(PPE). For example, a hard hat, safety glasses, steel toe
boots, and gloves.
Follow these additional guidelines when you mount a field
controller in a panel or enclosure:
• Do not install the controller in an airtight enclosure.
• Mount the controller so that the enclosure walls do
not obstruct cover removal or ventilation through the
controller.
• Mount the controller so that the power transformer
and other devices do not radiate excessive heat to the
controller.
Mounting the Zone Damper and Bypass
Damper Controller
1. Disconnect power from the controller transformer,
and heater circuits, if applicable.
2. Set all the switches on the field controller to their
known settings. See Setup and adjustments.
3. Set the MS/TP address. See Setup and adjustments.
4. Ensure that end-of-line (EOL) is set to the off position.
Refer to the Verasys Zone Coordinator Installation
Instructions (Part No. 24-10143-1280) for proper switch
setting.
5. Place the controller in the proper mounting position
on the actuator shaft so that the wiring connections
are easily accessible.
6. Ensure that the controller base is perpendicular
to the damper shaft. If necessary, use a spacer to
offset tipping of the controller caused by the shaft
bushings.
Note: Use the alignment marks to center the captive
spacer to ensure sufficient ZEC/BYP controller
movement in either direction.
Figure 1: Captive spacer alignment marks
7. Secure the self-drilling No. 10 screw through the
captive spacer with a power screwdriver and 100 mm
(4 in.) extension socket. Alternatively, use a punch
drill to mark the position of the shoulder washer.
8. Drill a hole using an 8 mm (5/16 in.) drill bit.
9. Insert the mounting screw and tighten against the
spacer.
10. Locate the damper position using the typical marking
on the end of the damper shaft.
11. Note the direction, clockwise (CW) or
counterclockwise (CCW), required to close the
damper. The actuator configuration depends on the
amount of rotation necessary for the damper to go
from the full-open to full-closed position.
- For 90° rotation, install the ZEC while the damper is
in the full-closed position.
- For 45° or 60° rotation, install the ZEC when the
damper is in the full-open position. See step 13 for
further information.
12. Push down and hold the manual override button
and turn the actuator coupler until it contacts the
mechanical end-stop at either the full-closed or full-
open position.
Figure 2: Manual override and actuator coupler
Table 1: Manual override and actuator coupler
Callout Description
1 Manual override button
2 Actuator coupler
13. If the damper for a 45° or 60° box closes CCW, rotate
the coupler to the CW mechanical limit. If the damper
for a 45° or 60° box closes CW, rotate the coupler to
the CCW mechanical limit. This action sets the open
end-stop; the closed end-stop is set by the closed
damper.
For 45° and 60° boxes, hard stops must be provided at
both full-closed and full-open damper positions. If you
install the controller at the full-open position, the con-
troller provides the open stop for 45° and 60° boxes. The
closed damper seal provides the full-closed stop.
14. Tighten the square coupler bolt to the shaft using an
8 mm (5/16 in.) wrench or 10 mm (3/8 in.) 12-point
socket. Tighten to 10.5 to 11.5 N·m (95 to 105 lb·in).
15. Attach the poly tubing to the ZEC pressure transducer
ports and put a loop in the poly tubing to trap
condensation. Loop the poly tubing before you make
the final connections.
16. Push the manual override button, and turn the
actuator coupling manually to ensure that the
actuator can rotate from full-closed to full-open
positions without binding.
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide2

17. Rotate the damper to the full-open position.
Wiring
CAUTION
Risk of Electric Shock
Disconnect the power supply before making electrical
connections to avoid electric shock.
ATTENTION
Risque de décharge électrique
Débrancher l'alimentation avant de réaliser tout rac-
cordement électrique afin d'éviter tout risque de
décharge électrique.
Important: Make all wiring connections in
accordance with the National Electrical Code and
local regulations. Use proper electrostatic discharge
(ESD) precautions during installation and servicing
to avoid damaging the electronic circuits of the
controller.
Important: Do not exceed the controller electrical
ratings. Exceeding controller electrical ratings can
result in permanent damage to the controller and
void any warranty.
Important: Do not connect supply power to the
controller before finishing wiring and checking all
wiring connections. Short circuits or improperly
connected wires can result in damage to the
controller and void any warranty.
Important: Use copper conductors only. Make
all wiring in accordance with local, national, and
regional regulations.
Important: Maintain proper polarity and voltage or
current ratings. Improper polarity or exceeding the
voltage or current ratings voids the warranty.
Input and Output terminals
Sensor bus terminal block
The sensor bus terminal block is a brown, removable, 4-
terminal plug that fits only into the brown, board-mounted
sensor bus jack. Wire the removable sensor bus terminal
block plugs on the ZEC310 and other field devices in a
daisy-chain configuration using a 4-wire twisted, shielded
cable as shown in the following figure.
Figure 3: Sensor bus terminal block wiring
Figure 4: Sensor bus daisy chaining configuration
Table 2: Sensor bus daisy chaining configuration
Callout Description
1 Terminating device on the sensor bus
2 Sensor bus terminal block plug on the
terminating device
3 Daisy-chained device on a sensor bus
segment
4 Sensor bus terminal block plug on the
daisy-chained device
5 Cable shield connection
6 Connects to the next device on the
sensor bus. Connects tothe NS-xxxx
sensors. See the Accessories section for
a listof the NS-xxxx sensors.
Zone bus terminal block
Note: The Verasys System zone bus is equivalent to
the ZEC310/BYP200 controller zone bus.
The zone bus terminal block is a gray, removable, 4-
terminal plug with +15 VDC that fits into a board-mounted,
zone bus jack. Wire the removable zone bus terminal block
plugs on the ZEC/BYP and other zone bus controllers in a
daisy-chain configuration using a 3-wire twisted, shielded
cable, as shown in the following figures.
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide 3

Figure 5: Zone bus terminal block wiring
Figure 6: Zone bus daisy chaining configuration
Table 3: Zone bus daisy chaining configuration
Callout Description
1 Terminating device on the zone bus
2 Zone bus terminal block plug on the
terminating device
3 Daisy-chained device on a zone bus
segment
4 Zone bus terminal block plug on the
daisy-chained device
5 Cable shield connection
6 Connects to the next device on the
zone bus. Connects to all ZECs and to
the zoning roof top unit (RTU) port of
theVZC100.
Modular ports
The modular sensor and zone bus ports on the face of
the controller are RJ-12, six-position, modular jacks. The
modular system bus and modular sensor bus port’s
provide a connection for the VAV Balancing Tool. The zone
bus port is not used in ZEC/BYP controller installations.
The zone bus port is not used in ZEC/BYP controller
installations. The following figure shows the pin number
assignments on the modular port.
Figure 7: Pin number assignments
Table 4: Pin number assignments
Pin number Description
1 Power 15 VDC
2 Bus and power common
3 Power 15 VDC
4 Bus and power common
5 Sensor or zone bus -
6 Sensor or zone bus +
Supply power terminal block
The 24 VAC supply power terminal block is a gray,
removable, 2-terminal plug that fits into a board-mounted
jack on the upper left of the ZEC/BYP controller. Wire the
24 VAC supply power wires from the transformer to the
terminal plug as shown on the following figure.
Note: The supply power wire colors may be different
on transformers from other manufacturers. Refer to
the transformer manufacturer's instructions and the
project installation drawings for wiring details.
Figure 8: VAC Supply power terminal block wiring
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide4

Table 5: VAC Supply power terminal block wiring
Calllout Description
1 Supply power terminal block jack
2 Supply power terminal block plug
3 Wires from Johnson Controls 90 VAC to
24 VAC, Class 2, power transformer
Important: The 24 VAC power should not be shared
with other network devices. Sharing power with
other network devices may cause noise, interference,
and ground loop problems. You may damage the
controller by sharing power with other devices.
Wiring diagrams
1. Terminate the ZEC wiring according to Figure 11.
Terminate the BYP wiring according to Figure 15.
2. Wire the zone sensor to the ZEC’s Sensor Bus.
3. Wire the Zone Bus in a daisy chain.
4. Ensure that the controller’s device address DIP
switches are set to the appropriate device address.
(See Setup and adjustments). Also, activate the end-
of-line (EOL) switch if necessary.
Important: Maintain proper polarity and voltage or
current ratings. Improper polarity or exceeding the
voltage or current ratings voids the warranty.
5. Connect the controller to 24 VAC, Class 2 power.
Figure 9: ZEC310 flow diagram
Table 6: ZEC310 flow diagram
Callout Description
1 Supply air from rooftop unit
2 Proportional water or Silicon Controller Rectifier (SCR) or 1 stage
3 Optional supplemental heating 1 command
4 Second damper is not required but an output is available to drive a second zone
damper
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide 5

Figure 10: BYP200 flow diagram
Figure 11: ZEC310-0 wiring diagram
Table 7: ZEC310-0 controller wiring diagram
Callout Description Object name
Johnson Controls
part number Required or optional
1 Supplemental heating output SUPHTG-O n/a Optional: Used if a 0 VDC to 10
VDC supplemental heat source is
being controlled.
2 Manual override n/a n/a n/a
3 Dip switch
4 Temp occ button
5 Setpoint
6 Sensor
ZN-T (If the
hardwired
sensors are
selected)
TE-68NT-1N00S Required: ZN-T can either
come from hardwired sensor or
network sensor
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide6

Table 7: ZEC310-0 controller wiring diagram
Callout Description Object name
Johnson Controls
part number Required or optional
7 Occupancy sensor OLS-2100-1.
To red wire occupancy switch
8 Occupancy sensor OLS-2100-1.
To neutral occupancy switch
OCC-S OLS-2100-1 Optional
9 To next device. See riser detail
for zone bus wiring.
n/a n/a n/a
10 From last device. See riser detail
for zone bus wiring.
n/a n/a n/a
11 See riser schedule to determine
the EOL device.
n/a n/a n/a
12 • Zone sensor (If netstat is
selected)
• You can average up to five
NS sensors. Connect the
NS sensors in a daisy-chain
configuration using the
addresses in the section. The
fifth sensor must have the
fixed address 199.
ZN-T NSB8BTN240-0 Required: ZN-T can either
come from hardwired sensor or
network sensor
13 • Optional. Zone sensor
• The connector is located on
the back of sensor.
14 24V Com
15 24V Hot
ZN-CO2 NS-BCN7004-0 Optional
16 24V Hot n/a n/a n/a
17 24V Com n/a n/a n/a
18 Supplemental heating stage 1 SUPHTG1-C n/a Optional: Use this output to
control on/off supplemental
heating.
19 Box heating stage 1 HTG1-C n/a Optional: Use this output to
control staged box heating.
20 Supplemental pulse output SUPHTG-PWM n/a Optional: Use this output to
control pulse-width modulation
(PWM) supplemental heating
Detail A
Figure 12: Detail A Table 8: Detail A
Callout Description Object name
1 Zone damper output 2
(optional)
ZND2-O
2 Box heating output (optional)
If box heat is selected,
the second damper is not
available.
HTG-O
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide 7

Configuring the NS sensors
Use the following diagrams and tables to address the NS
sensors:
Figure 13: CO2net stat with terminals addressable
Table 9: CO2 NS sensors with terminals addressable
Callout Description
A Address switch
B To next device on the sensor bus if
required
C From previous device on the sensor bus
Table 10: CO2 NS sensor addresses
DIP switch settingsAvailable
DIP switch
addresses Switch 4 Switch 2 Switch 1
212 Off (open) Off (open) Off (open)
213 Off (open) Off (open) On (closed)
214 Off (open) On (closed) Off (open)
215 Off (open) On (closed) On (closed)
216 On (closed) Off (open) Off (open)
217 On (closed) Off (open) On (closed)
218 On (closed) On (closed) Off (open)
219 On (closed) On (closed) On (closed)
Figure 14: NS sensors with terminals addressable
Table 11: NS sensors with terminals addressable
Callout Description
1 Thermostat circuit board
Note: Jack J2 is for commissioning
tools.
2 Address switch
3 Terminal block on the NS sensor.
Connector on themounting base slides
into W4 pins on the circuit board.
4 To next device on the sensor bus if
required
5 From previous device the on the sensor
bus
Table 12: Network sensor addressing
DIP switch
SA bus
address Switch 4 Switch 2 Switch 1
199 Off Off Off
200 Off Off On
201 Off On Off
202 Off On On
203 On Off Off
204 On Off On
205 On On Off
206 On On On
Note: Addresses 204 to 206 are not supported.
Sequence of operation
Occupied mode
• The zone damper controller monitors supply air
temperature.
• When the zone temperature rises above the Occupied
Cooling Setpoint, the primary air damper modulates
open from Damper Cooling Min Position to Damper
Max Position.
• When the zone temperature drops below the Occupied
Heating Setpoint, the primary air damper modulates
from Damper Heating Min Position to Damper Max
Position.
• If the supply air does not satisfy the cooling or heating
requirements, the primary air damper remains at the
Damper Satisfied Min Position.
Unoccupied mode
• All zone damper controllers are indexed to unoccupied
heating and cooling setpoints.
• When the zone temperature rises above the
Unoccupied Cooling Setpoint, the primary air damper
modulates from Damper Cooling Min Position to
Damper Max Position.
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide8

• When the zone temperature drops below the
Unoccupied Heating Setpoint, the primary air damper
modulates from Damper Heating Min Position to
Damper Max Position.
• If the supply air does not satisfy the cooling or heating
requirements, the primary air damper remains at the
Damper Satisfied Min Position.
Box heating (optional)
• Two optional outputs are available for box heating.
The controller uses local heat before voting for unit
heating.
• Output 4 is 0 VDC to 10 VDC output.
• Output 2 is a 24 VAC maintained output.
Note: If box heating is installed, the second damper
functionality automatically disables.
Supplemental heating (optional)
• You can use three optional outputs to add
supplemental heating to the controller. If you add
supplemental heating and set the relevant parameter
to True, the controller uses supplemental heating
before voting for unit heating.
• If supplemental heating does not satisfy the space, the
controller uses the heat available to satisfy the space.
• Output 1 is a 24 VAC maintained output.
• Output 3 is a 24 VAC output for PWM.
• Output 5 is a 0 VDC to 10 VDC output.
Second damper (optional)
• An optional output for controlling a second actuator.
• The output mimics the position of the integrated
actuator on the ZEC310.
• Output 4 is 0 VDC to 10 VDC output.
Occupancy lighting switch (optional)
• You can add an occupancy lighting switch to the box
to temporarily set the controller to standby mode it
does not detect occupancy. When the box detects
occupancy, the zone switches back to occupied mode.
• Standby mode uses standby temperature setpoints
that are slightly higher or lower than the occupied
cooling or heating setpoints, respectively.
Demand control ventilation (optional)
• You can proportionally reset the minimum damper
positions based on an air quality setpoint when you
wire the zone CO2 sensors to the controller to detect
the air quality in the zone.
• The reset of the damper minimum positions do not
exceed the maximum value that you set. When the CO2
sensor is not connected, the controller uses the cooling
minimum position and the heating minimum position.
Figure 15: BYP200 wiring diagram
Table 13: BYP200 wiring diagram
Callout Description Object name
1 Bypass damper output BYPD2-O
2 Manual override n/a
3 Discharge air static pressure DA-P
4 To next device n/a
5 From last device n/a
6 24 V HOT n/a
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide 9

Table 13: BYP200 wiring diagram
Callout Description Object name
7 24 V COM n/a
8 24 V HOT n/a
BYP200 Sequence of Operation
In occupied mode, the Bypass Damper Controller
monitors the duct static pressure. When the static
pressure rises above the setpoint, the Bypass Damper
modulates opens to decrease the pressure. When the
static pressure drops below the setpoint, the Bypass
Damper modulates towards the closed position to
increase pressure.
In unoccupied mode, when the single packaged unit
is OFF, the Bypass Damper modulates to 50%. If the
single packaged unit is ON, the Bypass Damper controls
according to the occupied mode sequence.
ZEC terminal functions, ratings,
requirements, and wiring guidelines
Input and Output wiring guidelines
Table 14 provides information about the functions,
ratings, and requirements for the ZEC input and output
terminals.
In addition to the wiring guidelines in Table 14, follow
these guidelines when wiring ZEC inputs and outputs:
• Run all low-voltage wiring and cables separate from
high-voltage wiring.
• It is best practice to ensure all input and output cables,
regardless of wire size or number of wires, consist of
twisted, insulated, and stranded copper wires.
• Shielded cable is not required for input or output
cables. It is best practice to use shielded cable for
input and output cables that are exposed to high
electromagnetic or radio frequency noise.
Sensor and Zone bus supply power wiring
guidelines
Table 14 provides information about terminal block
functions, ratings, and requirements.
In addition to the guidelines in Table 14, follow these
guidelines when wiring the Sensor and Zone Buses and
supply power:
• Run all low-voltage wiring and cables separate from
high-voltage wiring.
• It is best practice to ensure all zone and sensor bus
cables, regardless of wire size, consist of twisted,
insulated, and stranded copper wires.
• Shielded cable is strongly advised for all zone and
sensor bus cables.
• Refer to the Verasys BACnet MS/TP Communications
Technical Bulletin (LIT-12012362) for detailed information
regarding wire size and cable length requirements for
the Sensor and Zone Buses.
Wire gauges and lengths
Table 14: Zone controller wiring
Terminal Terminal labels
Function and electrical ratings and
requirements Best practice cable type and length
IN1 BI connection for occupancy sensor
(OCC-S) dry contact (optional).
IN2 AI connection for Warmer/Cooler
adjust (optional).
Analog Input (AI)
IN3 AI connection for zone temperature
(ZN-T) sensor (optional).
Note: You can wire either
a network sensor or a zone
sensor to AI13.
0.6 mm (22 AWG) stranded, 2-wire
twisted cable best practice for runs
of <30 m (90 ft)
(Integrated) BO connection for clockwise (CW)
rotation to the open position of the
actuator, 24 VAC triac output.
N/ABinary Output (BO)
(Integrated) BO connection for counterclockwise
(CCW) rotation to (Close) of actuator,
24 VAC triac output.
N/A
Sensor Bus
Terminal Block
+, -, COM, PWR Sources 15 VDC power for Sensor
Bus devices; supports 1 NS Series
Network CO2 Sensor and 1 NS Series
Network Sensor.
0.6 mm (22 AWG) stranded, 4-wire
twisted cable best practice for runs
of <30 m (99 ft)
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide10

Table 14: Zone controller wiring
Terminal Terminal labels
Function and electrical ratings and
requirements Best practice cable type and length
Zone Bus Terminal
Block
+, -, COM Communication network 0.6 mm (22 AWG) stranded, twisted
shielded cable best practice for runs
of 1,000 feet maximum
HOT AC supply input supply 20 VAC to 30
VAC (Nominal 24 VAC)
24 VAC Power
COM 24 VAC power common
0.8 mm to 1.5 mm (20 to 16 AWG)
2-wire
OUT4 Select box heat for an output signal
of 0 V to 10 V to control box heat.
Set the box heat to false for a 0 V to
10 V output signal to drive a second
damper actuator.
Note: Box heat is a heating
output that is in the duct.
0.6 mm (22 AWG) stranded, 3-wire
twisted cable best practice for runs
of <30 m (99 ft)
Configurable
Output (CO)
OUT5 0 V to 10 V Supplemental Heating
Output. Supplemental heating is
heating that is outside the duct.
0.8 mm to 1.5 mm (20 to 16AWG)
2-wire
OUT1 24 VAC power output to turn on a
supplemental heat command.
0.8 mm to 1.5 mm (20 to 16AWG)
2-wire
OUT2 24 VAC to turn on a box heat
command.
0.8 mm to 1.5 mm (20 to 16AWG)
2-wire
Binary Output (BO)
OUT3 PWM 24 VAC signal with a 10 second
cycle for a supplemental heat PWM
command.
0.8 mm to 1.5 mm (20 to 16AWG)
2-wire
Table 15: Bypass controller wiring
Terminal Terminal labels
Function and electrical ratings and
requirements Best practice cable type and length
Analog Input (AI) AI-1 AI connection for duct static pressure
sensor, 0.0 VDC to 5.0 VDC, 0 in. W.C
to 5 in. W.C.
0.6 mm (22 AWG) stranded, 2-wire
twisted cable best practice for runs
of <30 m (90 ft)
(Integrated) BO connection for clockwise (CW)
rotation to the open position of the
actuator, 24 VAC triac output.
N/ABinary Output (BO)
(Integrated) BO connection for counterclockwise
(CCW) rotation to (Close) of actuator,
24 VAC triac output.
N/A
Zone Bus Terminal
Block
+, -, COM Communication network 0.6 mm (22 AWG) stranded, twisted
shielded cable best practice for runs
of 1,000 feet maximum
HOT AC supply input supply 20 VAC to 30
VAC (Nominal 24 VAC)
24 VAC Power
COM 24 VAC power common
0.8 mm to 1.5 mm (20 to 16 AWG)
2-wire
Configurable
Output (CO)
OUT4 Analog output signal of 0 to 10 V
to drive a second Bypass Damper
actuator.
0.6 mm (22 AWG) stranded, 3-wire
twisted cable best practice for runs
of <30 m (90 ft0)
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide 11

Setup and adjustments
Setting the device address
ZEC controllers are master devices on BACnet® MS/TP
sensor or zone buses. Before operating field controllers
on a bus, you must set a valid and unique device address
for each controller on the bus.
To set a field controller’s device address, change the
positions of the switches on the device address DIP switch
block, at the top of the controller. Device addresses 4
through 127 are the valid addresses for the ZEC and BYP
controllers.
Note: The ZEC and BYP controllers ship with all
address switches set to ON. Set a valid and unique
device address on the field controller before
applying power to the controller on the bus.
The DIP switch block has eight switches numbered
128, 64, 32, 16, 8, 4, 2, and 1.
To set the device addresses on a field controller,
follow these steps:
1. Set all of the switches on the field controller’s device
address DIP switch block (128 through 1) to OFF.
2. Set one or more of the six address switches (32
through 1) to ON, so that the sum of the switch
numbers set to ON equals the intended device
address.
3. Set the highest number switch that is less than or
equal to the intended device address to ON. Then
continue setting lower numbered switches until the
total equals the intended address. For example, if
the intended device address is 21, set Switch 16 to
ON first, then set Switch 4 ON, followed by Switch 1
(16+4+1=21).
4. Set a unique and sequential device address for each
of the field controllers connected on the System Bus
or Zone Bus, starting with device address 4.
To ensure the best bus performance, set sequential device
addresses with no gaps in the device address range (4,
5, 6, 7, and so on). The field controllers do not need to be
physically connected on the bus in their numerical device
address order.
5. Write each field controller’s device address on
the white label below the DIP switch block on the
controller’s cover.
Refer to the Verasys BACnet MS/TP Communications
Technical Bulletin (LIT-12012362) for more information on
field controller device addresses and how to set them on
MS/TP Bus devices.
Duct static pressure probe requirement
The Bypass Damper requires the use of a duct static
pressure probe (FTG618A-600R) and 6.4 mm (1/4 in.) I.D.
user-supplied tubing. The tubing must connect to the
probe and link the H1 (+) port of the pressure sensor,
located on the Bypass Damper controller.
Accessories
Table 16 lists the Zone controller accessories. Table 17 lists the Bypass Controller accessories.
Table 16: Zone Controller accessories
Product code
number Description
Zone Temperature Sensors (Hardwired)
TE-68NT-0N00S Wall temperature sensor, 1k ohm, nickel with temperature occupancy button.
TE-68NT-1N00S Wall temperature sensor, 1k ohm, nickel with warmer/cooler (W/C) adjustment and temperature
occupancy pushbutton.
Zone CO 2 Sensor
NS-BCN7004-0 BACnet network CO2 sensor designed to function directly with Johnson Controls® BACnet MS/TP
digital controllers, in a 80 mm x 120 mm (3 in. x 4.5 in.) enclosure with terminal block and modular
jack wiring connections.
Note: Only addresses 212 to 214 are supported.
Second Zone Damper Actuator
M9106-GGA-2 6 N·m torque non-spring return damper actuator
Note: You must purchase the actuator and add it to a damper without a ZEC310 controller.
Network Sensors for Zone Temperature
NSB8BTN240-0 Network sensor, 120 x 80, Johnson Controls logo, local setpoint, white
NSB8BTN241-0 Network sensor, 120 x 80, no logo, local setpoint, white
NSB8BTN242-0 Network sensor, 120 x 80, Johnson Controls logo, no setpoint, black
NSB8BTN243-0 Network sensor, 120 x 80, no logo, no setpoint, black
NSB8BTN140-0 Network sensor, 120 x 80, Johnson Controls logo, W/C adjustment, white
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide12

Table 16: Zone Controller accessories
Product code
number Description
NSB8BTN141-0 Network sensor, 120 x 80, no logo, W/C adjustment, white
NSB8BTN142-0 Network sensor, 120 x 80, Johnson Controls logo, W/C adjustment, black
NSB8BTN143-0 Network sensor, 120 x 80, no logo, W/C adjustment, black
Occupancy Lighting Switch
OLS-2100-1 Occupancy sensing light switch for control of indoor incandescent and fluorescent lights
RIBU1C Enclosed relay for OLS-2100-1 Sensor
Table 17: Bypass Controller accessories
Product code
number Description
DPT2640-005D 264 Series Low Differential Pressure Transducer to measure differential air pressure. The transducer
senses static pressure and converts this pressure difference to a proportional analog output.
Accuracy: ± 5% within a 0 VDC to 5 VDC range. Units available in voltage or currents.
FTG18A-600R Duct static pressure probe kit: 4 in. flanged sensing tube, two barbed fittings, two No. 10 screws,
and O-gasket.
Note: The duct static pressure probe is field-installed and required for use with the Bypass
Controller. See the Duct static pressure probe requirement section.
M9106-GGA-2 6 N·m torque non-spring return damper actuator
Operation
The ZEC/BYP controller is pre-programmed for the
operating sequence as ordered. You do not need to
program the controller; however, you need to provide
configuration information using the Zone Setup screen on
the Verasys Smart Building Hub (SBH).
For detailed information on Verasys system operation,
including dehumidification capability, DCV, occupancy
sensing, and general operating modes, refer to the
Verasys System Operation Overview Technical Bulletin
(LIT-12012370).
Occupancy Sensor
All zone controllers support an occupancy sensor. The
occupancy sensor enables the controller to switch from
occupied mode to standby mode. This occurs in normal
occupied mode during a set time period, when local
activity is absent. When in standby mode, the zone
controller uses standby temperature setpoints that
are higher and lower than the occupied cooling and
occupied heating temperature setpoints. These standby
setpoints save energy by reducing the demand for
heating and cooling in an unoccupied zone. For Zone
Dampers, the sensor uses unoccupied flow setpoints
in addition to standby temperature setpoints. You can
enable the occupancy sensor in the Zone Setup screen
of the System Manager or Zone Coordinator. You can set
occupancy sensitivity and time delay until standby locally
at the sensor. Refer to the Verasys System User’s Guide
(LIT-12012370) for more information.
CO2 Demand Controlled Ventilation
(DCV)
CO2 DCV monitors CO2 levels using a wall-mounted CO2
sensor. This ensures high indoor air quality (IAQ) for
the zone. The sensor measures CO2 levels on a scale of
0 to 2,000 parts per million (ppm). When the CO2 sensor
detects that CO2 levels in the zone are above the setpoint,
such as when a high number of occupants are within the
zone, the Zone Damper opens to allow more outside air
into the zone. You can enable CO2 DCV in the Zone Setup
screen of the System Manager or Zone Coordinator. Refer
to the Verasys System User’s Guide (LIT-12012370) for more
information.
Troubleshooting
Use the following information to troubleshoot the ZEC/
BYP controllers.
Power Status LED
A green LED shows the power supply status for the Zone
Damper Controller. See Table 18 for a description of
modes.
Table 18: Status LED for Power (PWR)
Mode Description
Off No Power
On Power is supplied by primary voltage
(Normal operation)
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide 13

Communication Bus problems
Several factors influence the functioning of the Zone
Communication Bus.
I/O wiring
It is important that the ZEC/BYP controller is wired
properly. If the ZEC/BYP controller is wired incorrectly,
communication problems can occur. These problems
include devices going online and offline, or devices not
coming online at all.
Incomplete address
The ZEC/BYP controller must have the address switch set
to a range between 4–127. Other settings prevent the
controllers from communicating on the network.
Duplicate addresses
Two or more devices on a Communication bus cannot
have the same address. If two devices on the same
bus have the same address, performance can degrade
or serious communication problems can occur. These
problems include the devices not coming online and all
communication stopping completely.
Depending on the severity of the situation, check for
duplicate addresses in the following ways:
• If the bus performance is degraded, check the address
switch settings at the devices that have unreliable
communication.
• If a specific device is not communicating, disconnect
that device and check if the device address remains
online at the SBH.
• If the bus communication problems are severe and no
communication is present, or you cannot determine
where communication is unreliable, disconnect and
isolate a portion of the bus for testing purposes,
and test the bus portion connected to the Zone
Coordinator.
Correcting physical Communication Bus
problems
The Communication Bus is subject to a number of
physical factors that can affect performance. Consider the
following list of common physical problems that affect the
Communications Bus:
• Check the status LED to verify power at the controller.
• Check wires
- Verify that the wire is a 0.6 mm (22 AWG) three-
conductor, twisted, shielded cable.
- Verify that the shield is continuous and hard-
grounded at one end.
• Check wiring
- Check for and eliminate T-Taps, wire
configurations that create a T shape, and star
configurations.
- Ensure that the bus is wired in a daisy-chain
fashion.
- Verify that appropriate devices have three wires
entering and exiting each terminal. Devices at
the ends of the trunk do not have this wiring.
• Check EOL switch settings
- Verify that only the EOL switch at the end of the
system bus is set to ON, and all other system bus
EOL switches are set to OFF.
• Check connections, polarity, and lengths
- Verify that communications loops are less than
approximately 304 m (1,000 ft) total in length.
- If you are using one transformer to power
multiple devices, verify that the device 24 VAC
power connection follows the polarity of the
common and 24 V terminations.
• Check for opens and shorts
• Check terminations
• Check addresses
- Check for duplicate addresses.
- Verify that the address range is sequential.
• Check for sources of interference
• Check bus voltages:
- (+) to COM must be within 2.0 VDC to 3.0 VDC
- (-) to COM must be within 1.5 VDC to 2.54 VDC
- (+) to (-) must be within 0.3 VDC to 1.0 VDC
Note: Values may fluctuate due to ongoing
communications. This operation is normal provided
that the voltage is within the defined range.
ZEC310 Zone and BYP200 Bypass Controllers technical specifications
Table 19: ZEC310 Zone and BYP200 Bypass Controllers technical specifications
Specification Description
Product code number LC-ZEC310-0: Field Installed, Zone Damper Controller
LC-BYP200-0: Field Installed Bypass Damper Controller
Power supply requirement 24 VAC (nominal, 20 VAC minimum/30 VAC maximum), 50 to 60 Hz, Class 2 power
supply (North America) or Safety Extra-Low Voltage (SELV) (Europe)
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide14

Table 19: ZEC310 Zone and BYP200 Bypass Controllers technical specifications
Specification Description
Power consumption 10 VA (not including external load)
Note: VA ratings do not include any power supplied to the peripheral devices
connected to Binary Outputs (BOs) or Configurable Outputs (COs), which can
each consume up to 12 VA per BO or CO, for a possible total consumption of an
additional 60 VA (maximum).
Ambient conditions Ambient Operating Conditions: 0°C to 50°C (32°F to 122°F)
Ambient Storage Conditions: -40°C to 70°C (-40°F to 158°F)
Processor RX630 32-bit Renesas® microcontroller
Memory 1 MB flash memory and 512 KB Random Access Memory (RAM)
Input and Output capabilities 3 Universal Inputs: Defined as 0 VDC to 10 VDC, 4 mA to 20 mA, 0k to 600k ohm, or
Binary Dry Contact
3 Binary Outputs: Defined as 24 VAC Triac (internal power source)
2 Configurable Outputs: Defined as 0 VDC to 10 VDC or 24 VAC Triac BO
Analog Input/Analog Output
accuracy
Analog Input: 15-bit resolution on UIs
Analog Output: 0 VDC to 10 VDC ± 200 mV
Mounting Mounts to damper shaft using single set screw and to duct with single mounting
screw
Actuator rating 4 N•m (35 lb•in) minimum shaft length = 44 mm (1-3/4 in.)
Dimensions (Height x Width x
Depth)
165 mm x 125 mm x 73 mm (6.5 in. x 4.92 in. x 2.9 in.)
Shipping weight 0.65 kg (1.45 lb)
United States: UL Listed, File E107041, CCN PAZX, UL 916, Energy Management
Equipment
FCC Compliant to CFR47, Part 15, Subpart B, Class A.
Canada: UL Listed, File E107041, CCN PAZX7, CAN/CSA C22.2 No. 205, Signal
Equipment
Industry Canada Compliant, ICES-003
Compliance
Australia and New Zealand: RCM, Australia/NZ Emissions Compliant.
Europe: CE Mark - Johnson Controls declares that this product is in compliance with
the essential requirements and other relevant provisions of the EMC Directive.
The performance specifications are nominal and conform to
acceptable industry standards. For application at conditions
beyond these specifications, consult the local Johnson
Controls office. Johnson Controls shall not be liable for
damages resulting from misapplication or misuse of its
products.
Repair information
If the ZEC310 or BYP200 Controller fails to operate within
its specifications, replace the unit. For a replacement unit,
contact your nearest Verasys representative.
Product warranty
This product is covered by a limited warranty, details
of which can be found at www.johnsoncontrols.com/
buildingswarranty.
Software terms
Use of the software that is in (or constitutes)
this product, or access to the cloud, or hosted
services applicable to this product, if any,
is subject to applicable terms set forth at
www.johnsoncontrols.com/techterms. Your use of this
product constitutes an agreement to such terms.
Patents
Patents: http://jcipat.com
Verasys ZEC310 Zone Damper and BYP200 Bypass Damper Controllers Installation Guide 15

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are subject to change without notice.
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