background image

3.  Plug the 8-pin male jack on the Y adapter into

the VMA18 controller socket labeled TSTAT

(Figure 12).

4.  Plug the BTCVT into the 6-pin socket on the Y

adapter. When commissioning is complete,

allow the 6-pin socket to remain unconnected

(Figure 12).

Replacing an AP-TMZ1600-0 sensor

connected to a VMA Controller

To replace an AP-TMZ1600-0 sensor connected to a

VMA controller, complete the following instructions.

Note: 

The AP-TMZ1600-0 sensor is not

supported for use with the VMA18 controller

and must be replaced with an NS Series

Network Sensor. Refer to the 

NS Series Network

Sensors Product Bulletin (LIT-12011574)

 for a

complete list of available NS Series Network

Sensors.

1.  Remove the AP-TMZ1600-0 sensor and

disconnect the 8-pin male jack from the back of

the sensor.

2.  Plug the 8-pin male jack from the VMA

controller into the 8-pin female socket on the

single-socket adapter (Figure 10) included with

the VMA18 controller.

3.  Plug the 6-pin male jack on the single socket

adapter into the modular jack connection on

the back of the NS Series Network Sensor.

4.  Mount the NS Series Network Sensor in the

same location the AP-TMZ1600-0 Sensor was

previously mounted, concealing the adapter

assembly in the existing wall opening behind

the sensor. Refer to the installation instructions

for the applicable NS Series Sensor model.

5.  Plug the BTCVT into the 6-pin socket on the NS

Series Network Sensor.

Note: 

When using an NS Series Network

Sensor with screw terminal block terminations,

see the wiring diagram in the installation

instructions for the applicable NS Series Sensor

model.

Replacing a TE-7710-0 Series Wireless

Transmitter and TE-7720-0 Wireless

Receiver connected to a VMA Controller

To replace a TE-7710-0 Series Wireless Transmitter

and TE-7720-0 Wireless Receiver connected to a VMA

controller, or to convert the wired sensors used

with the VMA18 controller to wireless, complete the

following instructions.

Note: 

The TE-7710-0 Series Wireless

Transmitter and TE-7720-0 Wireless Receiver

must both be replaced with a WRZ Series

Wireless Sensor and a WRZ7860-0 Series

One-to-One Receiver. Refer to the 

WRZ

Series Wireless Room Sensors Product Bulletin

(LIT-12011653)

 for a complete list of available

WRZ Series Wireless Room Sensors.

1.  Disconnect the 6-foot interface cable

connecting the VMA controller and the

TE-7720-0 Wireless Receiver.

2.  Plug one end of the 6-foot interface cable into

the VMA18 socket labeled TSTAT.

3.  Plug the other end of the 6-foot interface cable

into the 8-pin female socket of the single-socket

adapter.

4.  Plug the male end of the single-socket adapter

directly into the BTCVT.

5.  Complete commissioning of the VMA18

controller and disconnect the BTCVT.

Note: 

Sensor point information such as

temperature, setpoint, and occupancy is

not available during commissioning.

6.  Install the WRZ Series Wireless Sensor and

a WRZ7860-0 Series One-to-One Receiver in

the same locations as the previous sensor

and receiver. Refer to the 

WRZ Series Wireless

Room Sensors Installation Instructions (Part No.

24-10332-2)

 and the 

WRZ-7860-0 Installation

Instructions (Part No. 24-10563-47)

.

7.  Plug the 6-pin male jack on the adapter into the

WRZ7860-0 receiver.

Note: 

When using an WRZ Series Sensor with

screw terminal block terminations, refer to the

wiring diagram in the installation instructions

for the applicable WRZ Series Sensor model.

VMA1826/1832 VAV Controller Installation Guide

15

Summary of Contents for VMA18 Series

Page 1: ...cting an IOM to the VMA via the SA Bus connection is not supported For information about sensor compatibility and replacement see Sensor replacement and reuse scenarios North American emissions compli...

Page 2: ...river for securing wires in the terminal blocks 8 mm 5 16 in wrench or 10 mm 3 8 in 12 point socket to tighten the square coupler bolt Several shims or washers to mount the VMA Power screwdriver 100 m...

Page 3: ...t condensation to fall away from the VMA Additional measures may be required in some installations Ensure the mounting surface can support the VMA and any user supplied enclosure Mount the VMA on a ha...

Page 4: ...r the threads may strip If mounting to the VAV box make sure the screws do not interfere with damper blade movement 3 Locate the damper position using the typical marking on the end of the damper shaf...

Page 5: ...e the damper to the full open position before starting the air handler Failure to rotate the damper to the full open position may result in damage to the VAV box or ductwork when the air handler is st...

Page 6: ...n Figure 4 See Table 5 and Table 6 for more information Figure 4 N2 FC bus terminal block wiring Note The Shield terminal SHLD on the N2 FC Bus terminal block is isolated and can be used to connect th...

Page 7: ...ss the network devices Powering network devices with uniform 24 VAC supply power phasing reduces noise interference and ground loop problems The VMA does not require an earth ground connection However...

Page 8: ...to the wire size and the load current in mA when wiring inputs and outputs N2 FC and SA bus and supply power wiring guidelines Table 6 provides information about terminal block functions ratings and r...

Page 9: ...ut Termination diagrams Voltage Input Internal Source UI Voltage Input Self Powered UI Temperature Sensor UI Dry Contact UI 0 10 VDC Output to Actuator Internal Source CO 0 10 VDC Output to Actuator E...

Page 10: ...plies to CO4 and CO5 Analog Output Voltage CO 24 VAC Binary Output Switch Low Internally Sourced BO Note Applies to BO1 BO2 and BO3 Incremental Control to Actuator Switch Low Internally Sourced BO Not...

Page 11: ...ontroller The VMA142x controller has five binary outputs BOs and internally supplies 24 VAC The VMA18 controller has three binary outputs BOs and supplies 24 VAC to these BOs The VMA18 controller has...

Page 12: ...A18 controllers See Table 3 for a description of the most popular sensor models used with the VMA1410 VMA1415 VMA1420 and the VMA controllers the sensor replacement and reuse scenarios for that sensor...

Page 13: ...ally equivalent NS Series Network Sensor follow the instructions in the Replacing a TE 6xxx series sensor section To reuse a TE 6xxx Series Sensor connected to a VMA controller follow the instructions...

Page 14: ...apter assembly in the existing wall opening behind the sensor Refer to the installation instructions for the applicable NS Series Sensor model 5 Plug the BTCVT into the 6 pin socket on the NS Series N...

Page 15: ...0 Series Wireless Transmitter and TE 7720 0 Wireless Receiver connected to a VMA Controller To replace a TE 7710 0 Series Wireless Transmitter and TE 7720 0 Wireless Receiver connected to a VMA contro...

Page 16: ...a TE 700 Series sensor See the instructions in this section to reuse a TE 700 Series Sensor when connected to a VMA18 controller 1 Disconnect the 8 pin male jack plugged into the VMA controller 2 Plu...

Page 17: ...ensor Negative Temperature Coefficient NTC Sensor 10K Type L 10K JCI Type II is equivalent to Type L or 2 252K Type II See Guideline A in Table 5 INn Binary Input Dry Contact Maintained Mode 1 second...

Page 18: ...or recommended wire sizes Guideline Wire size Gauge and type Maximum cable length and type Assumptions 1 0 mm 18 AWG stranded copper 457 m 1 500 ft twisted wire 0 8 mm 20 AWG stranded copper 297 m 975...

Page 19: ...Supply Common The 0 models isolate this terminal from all other commons The 1 models only isolate this terminal from the FC bus common 0 8 mm to 1 0 mm 20 to 18 AWG 2 wire 1 To determine wire size and...

Page 20: ...e sum of the switch numbers set to ON equals the intended device address Set the highest number switch that is less than or equal to the intended device address to ON Then continue setting lower numbe...

Page 21: ...procedures Refer to the Controller Tool Help LIT 12011147 CCT connects to the VMA through a laptop computer using any one of the following connection options the MAP Gateway BTCVT the Wireless ZigBee...

Page 22: ...OUT3 terminals of binary outputs are not connected to 24 VAC COM verify that OCOM1 OCOM3 are not connected to 24 VAC HOT these terminals are internally sourced 3 Verify the short circuit has been reso...

Page 23: ...24 VAC Secondary 92 VA Foot Mount 30 in Primary Leads and 30 in Secondary Leads Class 2 Y65A13 0 Transformer 120 VAC Primary to 24 VAC Secondary 40 VA Foot Mount Y65AS 8 in Primary Leads and 30 in Se...

Page 24: ...es 4 127 Device addresses 0 3 and 128 255 are reserved and not valid field controller addresses Communications Bus N2 Open Protocol N2 FC Bus 1 5 mm 18 AWG standard 3 wire twisted shielded cable recom...

Page 25: ...oduct is in compliance with the essential requirements and other relevant provisions of the EMC Directive 2004 108 EC Compliance Australia and New Zealand RCM Mark Australia NZ Emissions Compliant Pro...

Page 26: ...2019 Johnson Controls All rights reserved All specifications and other information shown were current as of document revision and are subject to change without notice www johnsoncontrols com...

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