Verasys LC-VAC3000-0 User manual

Verasys Chilled Water System Controller Quick Start Guide
Refer to the QuickLIT website for the most up-to-date version of this document.
1
Verasys Chilled Water System Controller
Quick Start Guide
LC-VAC3000-0 Code No. Lit 12013229
Issued April 2019
Figure 1: LC-VAC3000-0
About this guide
This quick start guide provides the basic information you need to
configure and install the Chilled Water System Controller and
application.
For further information, refer to the Verasys® 32 Point 24 VAC
Application Controller Installation Instructions (24-10143-01515), and
Verasys Chilled Water System Controller Application Note (LIT-
12013173) on QuickLit.
For more information or to access Quicklit, scan the following QR
codes:
Mounting the controller
To mount the controller, complete the following steps:
1. Mount a 20 cm (8 in.) section of
35 mm (1.3 in.)DIN rail
horizontally.
Note: Mount the controller in the horizontal position.
2. On the back of the controller, extend the two mounting clips as
shown in the following figure.
3. Place the controller on the DIN rail.
4. To secure the controller on the DIN rail, push the bottom
mounting clips up as shown in the following figure.
5. To remove the controller from the DIN rail, pull the bottom
mounting clips out to the extended position and carefully lift the
controller off the DIN rail
LC-VAC3000-0 QR code QuickLit QR code
Figure 2: Pull lower mounting clips down
Figure 3: Pull lower mounting clips down

Verasys Chilled Water System Controller Quick Start Guide
2
Wiring the controller
The system bus terminal block is a blue, removable, 4-terminal plug
that fits into a board-mounted jack. To wire the controller, complete
the following steps:
1. Wire the removable system bus terminal block as shown in
Figure .
2. Wire any other devices that you want to connect on the system
bus in a daisy-chain configuration using 3-wire twisted, shielded
cable as shown in Figure 5.
Figure 4: System bus terminal block wiring
Figure 5: Daisy-chain wiring configuration
Enable the end of line (EOL) switch
If the controller is at the beginning or end of the line on the system
communication bus, you must activate the EOL switch.
1. To disengage and remove the plastic cover press down on the top
of the controller.
Note: Ensure that you do not disconnect the ribbon cable that
connects the controller to the board display.
Note: The EOL switch is a red block with a white switch located
directly above the system bus terminal block.
2. Turn the EOL switch on by moving the white switch to the right.
Wiring the supply power terminal block
The 24 VAC supply power terminal block is a gray, removable,3-
terminalplugthatfitsintoa board-mounted jack on the top right of the
controller.
Wirethe 24 VACsupply powerwiresfrom thetransformer to the HOT
and COM terminals on the terminal plug, as shown in Figure 6.
Note: Do not use the middle terminal on the supply power
terminal block.
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 6: Supply power terminal block wiring
Wiring options
Configurable outputs 1, 2, and 3, and triac binary outputs 8 and 9 are
rated for a maximum current draw of 0.5 A. It is best practice to use
pilot relays when you use these outputs to drive lighting contactors.
You can choose a pilot relay with a manual override function. You can
also use software to reverse the polarity of the output. This means
that you can drive contactors with contacts that are normally open
(fail off) or normally closed (fail on).
Note: See Figure 7 for information about wiring the Chilled Water
System controller.
Table 1: Daisy-chain wiring configuration
No. Description
1Terminating device on the system bus
2System bus terminal block plugs
3Daisy chained device on a system bus segment
4To next device on the system bus segment
+
COM
SHD
1
2
3
4
4
+
COM
SHD
+
COM
SHD
Table 2: Supply power terminal block wiring
No. Description
1Supply power terminal block jack
2Supply power terminal block plug
3Wires from Johnson Controls® 90 VAC to 24 VAC, Class 2
power transformer
(COM)(24 VAC)
HOT
COM
24V~
HOT
COM
1
2
3

Verasys Chilled Water System Controller Quick Start Guide
3
Table 3: Chilled Water System Controller wiring (Part 1 of 3)
No Description Object
name
1Primary or secondary CHWP 1 output (to pump
VFD) xCHWP1-O
PCHWP1-O/
SCHWP1-O
2Primary or secondary CHWP 2 output (to pump
VFD) xCHWP2-O
3Chill water bypass valve output CHWBYPV-
O
4Chiller 1 command CHLR1-C
5Chiller 2 command CHLR2-C
6Primary chill water pump 1 command PCHWP1-C
7Primary chill water pump 2 command PCHWP2-C
8Secondary chill water pump 1 command SCHWP1-C
9Secondary chill water pump 2 command SCHWP2-C
10 24 V Com
11 24 V HOT CHLR1-F
CHLR1-DP
12 From last device CHW-DP
Figure 7: Chilled Water System controller wiring
Ad dr ess : SEE RISER
DIAGRAM
PWR COM + -
SE NSO R
BUS
+ -
SY STEM
BUS
COM SHL D
IN 4 IN 5 IN 6 IN 7 IN 8 IN 9 ICOM7-12 IN 14 ICOM 14 IN 15 ICOM 15 IN 16 ICOM 16 IN 17 ICOM 17
UNIVERSALBI NA RY
CONFIGURABLE
OUT10NO
OCOM10
BI NA RY
HOT
24 VA C
INPUT
COM
VAC3000
OUT1 OCOM1 OUT2 OCOM2 OUT3 OCOM3
24V~
COM
24 VA C
OUT
IN 18 ICOM 18 +15V COM
+ -
MOD BUS
COM
OCOM4
OUT4
PWM COM
OUT5 PWM
PWM
OUT6NO OCOM6 OUT7NO OCOM7 OUT8NO OCOM8 OUT9NO OCOM9 OUT11-A
OUT11-B
OUT12-A
OUT12-B
OUT13-A
OUT13-B
OUT14-A
OUT14-B
IN 13 ICOM 13
COM 24V~
IN 12 IN 11 IN 10 ICOM 4-5-6
ICOM 1-2-3
IN 3 IN 2 IN 1
MS/TP
MS/TP
-
+
+VDC
OUT
COM
+15 VDC
CNO NO C C NO NO CCNO
+
-
VDC
+24V
COM
24 V Ho t
24 V Co m
+
-
-
+
-
+
-
+
-
+
-
+
+VDC
OUT
COM
+15 VDC
+VDC
OUT
COM
+15 VDC
CNO CNO
27
1
2
3
4
10
11
5
6
7
8
9
16
17
18
19
20
21 22 23 24 25 26
12
13
14
15
No Description Object
name
13 To next device OA-T
14 NS zone temperature sensor that can
initiate chillers at night. PHCWR-T
15 Chiller 2 flow or differential pressure
The wiring is for a differential pressure
sensor. Check the manual for the flow
sensor as it varies.
PCHWS-T
16 Chiller 1 flow or differential pressure
The wiring is for a differential pressure
sensor. Check the manual for the flow
sensor as it varies.
CHLR1-A
17 Chill water differential pressure CHLR2-A
18 Outside air temperature PCHWP1-S
19 Primary chill water return temperature PCHWR-T
20 Primary chill water supply temperature PCHWS-T
21 Chiller 1 alarm status CHLR1-A
22 Chiller 2 alarm status CHLR2-A
Table 3: Chilled Water System Controller wiring (Part 2 of 3)

Verasys Chilled Water System Controller Quick Start Guide
4
Setting the controller address using the local display
1. To access the menu, press ENT.
2. To navigate to the Controller menu use the up and down
arrows and press ENT.
3. Navigate to the Network section and press ENT.
4. Navigate to the Address section and press ENT.
5. The address defaults to 4. Press ENT again.
The address blinks.
6. To increase or decrease the address value, use the up or down
arrows.
7. To confirm the address value, press ENT.
The address stops blinking and the old address appears.
8. To refresh the screen, press the up or down arrows. The new
address appears.
9. Press ESC until you return to the main screen that shows the
system is operational.
Configuring sensors
To configure the installed sensors, complete the following steps:
1. Navigate to the Details menu.
2. Navigate to the Sensors section.
3. Select the installed sensors using the drop-down menus for each
parameter.
Commissioning the system
To activate the outputs and verify system operation, use the
Commissioning menu. From the Commissioning menu, change
Start Commissioning to Trigger and adjust outputs individually.
Configuration menu options
The following table describes the System Configuration menu on
the Smart Building Hub (SBH).
Technical specifications
No Description Object
name
23 Primary chill water pump 1 status PCHWP1-
S
24 Primary chill water pump 2 status PCHWP2-
S
25 Secondary chill water pump 1 status SCHWP1-
S
26 Secondary chill water pump 2 status SCHWP2-
S
27 Shutdown command EMERG-
STOP
Table 4: System Configuration menu options (Part 1 of
2)
Menu option Description Range
Number of Chillers Sets the number of
chillers Adjustable: 1-2
Primary Pump Type Sets the type of primary
pumps in the system Adjustable:
• Constant Speed
• Variable Speed
Table 3: Chilled Water System Controller wiring (Part 3 of 3)
Constant Primary
Pump Sets the pump configuration Adjustable:
• Dedicated
• Parallel
Number of Pumps Sets the number of
primary pumps Adjustable: 1-2
Primary Pump
Operation Type Sets the pumps operation type Adjustable:
• Duty/Standby
• Lead/Lag
Number of
Secondary Pumps Sets the number of secondary pumps (if
any)
Adjustable:
0-2
Secondary Pump
Operation Type Sets the pump operation type if
installed
Adjustable:
• Duty/Standby
• Lead/Lag
Bypass Valve
Installed Sets whether a bypass is installed or not Adjustable:
• No
• Yes
Enable Alarms Sets whether to
configure diagnostics
for pumps or not
Adjustable:
• False
• True
Product code
numbers LC-VAC3000-0 Verasys 32 point 24 V Application Controller with Display
Supply
voltage 24 VAC, 20 VAC minimum / 30 VAC maximum, 50/ 60 Hz, power supply class 2
North America, safety extra-low voltage (SELV)
Europe
Power
consumption 20 VA maximum for LC-VAC3000-0 VArating does not include any power supplied to the
peripheral devices connected to binary outputs
(BOs) or configurable outputs (COs). This can
consume up to 12 VA for each BO or CO for a
possible total consumption of an additional 60 VA
maximum.
Ambient
conditions Operating: -20°C to 70°C (-4°F to 158°F); 10% to 95% RH noncondensing; pollution degree 2
Storage: -40°C to 85°C (-40°F to 185°F); 5% to 95%
RH noncondensing
Addressing BACnet® MS/TP: valid field controller device
addresses 4–127
Device addresses 0–3 and 128–255 are reserved
and not valid field controller addresses
Communica-
tions bus BACnet® MS/TP, through RS-485: 3-wire system bus between the supervisory
controller and field controller
4-wire sensor bus between controller, network
sensors and other SA devices, includes a lead to
source 15 VDC supply power from controller to bus
devices
Processor RX631 Renesas® 32-bit microcontroller
Memory 16 MB flash memory and 8 MB RAM
Table 4: System Configuration menu options (Part 2 of
2)
Menu option Description Range

Published in U.S.A. www.johnsoncontrols.com
Verasys Chilled Water System Controller Quick Start Guide
Verasys® and Johnson Controls® are registered trademarks of Johnson Controls
All other marks herein are the marks of their respective owners. © 2019 Johnson Controls
Building Technologies and Solutions
507 E. Michigan Street, Milwaukee, WI 53202
5
North American emissions compliance
United States
Canada
Mounting Horizontal on single 35 mm DIN rail mount
is preferred, or screw mount on flat surface
with three integral mounting clips on
controller. Mount the controller on a wall or
DIN rail inside an enclosure rated at least
IP20.
Housing Enclosure material: Polycarbonate
LEXAN® SABIC EXL9330
Dimensions (H x
W x D) 164 mm x 125 mm x 53 mm (6.45 in. x 4.92
in. x 2.08 in.) excluding terminals and
mounting clips.
Weight 0.5 kg (1.1 lb)
Compliance United States: cULus Listed, File
E107041, CCN
PAZX, UL 916, Energy Management
Equipment FCC Compliant to CRF47, Part
15, Subpart B, Class A
Canada: cULus Listed, File E107041, CNN
PAZX7 CAN/CSA C22.2 No.205, Signal
Equipment Industry Canada Compliant,
ICES-003
Europe: Johnson Controls declares that
this product is also in compliance with the
essential requirements and other relevant
provisions of the EMC Directive Declared
as Electronic Independently mounted
control, suitable for DIN rail mounting.
Intended to mount in remote panel. Type
1.C (Microinterruption), 330 V rated
impulse voltage. 125°C ball pressure test.
Australia and New Zealand: RCM Mark,
Australia/NZ Emissions Compliant
This equipment has been tested and found to comply with the limits
for a Class Adigital 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 users will be required
to correct the interference at their own expense.
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.