Table 7: ZEC510-2 wiring diagram
Number Description
Name on the
Verasys user
interface
Terminal
label
Object name Signal type
1
24 V HOT power transformer
2
24 V COM power transformer
n/a
3
Optional. Heating percent command
Terminations for 2-way or 3-way coil - A
valve configurations. CCW to open
HEATING STAGE
OUTPUT
OUT1
HTG-O
24 VAC Position Adjust
Output (Floating)
4
Optional. Heating percent command
Terminations for 3-way coil - B valve
configuration. CCW to close
HEATING STAGE
OUTPUT
OUT2
HTG-O
24 VAC Position Adjust
Output (Floating)
5
Optional. Supply fan command
SUPPLY FAN
COMMAND
OUT3
SF-C
24 VAC on/off,
internally sourced
6
Optional. Supplemental heating
percent command. CCW to open
SUPPLEMENTAL
HEATING OUTPUT OUT4, OUT5 SUPHTG-O
24 VAC Position Adjust
Output (Floating)
7
Pressure ports. No polarity
8
Manual override
n/a
9
Optional. Supply air temperature
sensor TE-631GV-2.
SUPPLY AIR
TEMPERATURE
IN3
SA-T
Nickel 1K RTD
10
Optional. Relay: RIBU1C
11
Occupancy sensor OLS-2100-1. To red
wire occupancy switch
12
Occupancy sensor OLS-2100-1. To
neutral occupancy switch
OCCUPANCY
STATUS
IN2
OCC-S
Dry Contact, Normally
Open
Normally Closed is
configurable through
the interface
13
Optional. Discharge air temperature
sensor TE-631GV-2.
DISCHARGE AIR
TEMPERATURE
IN1
DA-T
Nickel 1K RTD
14
To next device
15
From last device
16
See riser schedule to determine the EOL
device. You must set the EOL switch to
the
ON
position on the EOL device.
n/a
17
Zone temperature sensor
NSB8BTN240-0. The connector is
located on the back of the sensor.
ZONE
TEMPERATURE
SENSOR BUS
ZN-T
18
Optional. Zone CO
2
sensor NS-
BCN7004-0. The connector is located on
the back of the sensor.
ZONE AIR QUALITY
or ZONE CO2
SENSOR BUS
ZN-CO2
SA bus
Note:
• Both heating valves use the 60-second incremental actuator factory default value. You can
adjust this in Verasys.
• 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.
• If you install CO
2
Net sensors, in addition to the 24 VAC power for the controller, you must
also supply 24 VAC power the
HOT
and
COM
terminals.
Piping details for valve configurations
See the valve schedule for the specific configuration.
Verasys ZEC510 VAV Controllers Installation Guide
16
