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Phason
Natur
ral Vent
tilation
The Natu
ural Ventilatio
on Control (N
provides
extensive fle
exibility for yo
automatic
cally controls
s the tempera
and heate
er according
to your prog
Model
is 12
2 VDC-powe
NV
VC-2-12
Controllin
ng a curtain
machine
When
n the temper
ature is withi
the N
NVC maintain
ns the curtain
When
n the temper
ature rises ab
the cu
urtain for the
e
.
durat
ion
After
r each
Off dur
ration
then e
either opens
or closes the
depen
nding on the
Controllin
ng a heater
When
n the temper
ature is below
switch
hes the heate
er on.
When
n the temper
ature is abov
switch
hes the heate
er off.
Quick
k reference
e
Accesso
ories and kits
s ........... 21
Alarm c
connection ....
.............. 7
Alarm s
ettings overv
iew ...... 13
Close d
duration.........
............ 11
Close o
off (idle) durat
ion ...... 11
Control
layout .........
.............. 5
Control
overview .....
.............. 3
Curtain
machine con
nnection . 6
Curtain
set point ......
............ 10
Curtain
settings over
rview ...... 9
Factory
y defaults ......
............ 18
33440000
0
Contro
NVC) is a fu
our curtain o
ature in a roo
grammed sett
ered; model
in the
Idle ba
n position.
bove the
Idle
, and then p
On duration
n
, the NV
VC checks th
e curtain (for
temperature
e.
w the
Heat se
ve the
Heat se
Features .....
Firmware ve
Heater conn
Heater set p
High alarm .
Hysteresis ..
Idle band....
Low alarm ..
Manual ove
Menu ..........
Mounting ...
l, 12/24
4 V
ully programm
mable contro
or awning con
ntrol needs. T
om by operat
ting a curtain
tings.
is 2
24 VDC-pow
NVC-2-24
N
of the
,
and
Se
et point
, the N
NVC opens
band
pauses for the
e
Off
he temperatu
ure and
r the preset d
duration),
, the
NVC
et point
, the N
NVC
et point
......................
.......... 2
ersion ............
........ 19
nection ..........
.......... 6
point ..............
........ 12
......................
........ 14
......................
........ 12
......................
........ 11
......................
........ 14
rride mode ...
........ 16
......................
.......... 4
......................
.......... 6
oller that
The NVC
n machine
wered.
O
Open duration
n ...................
O
Open off (idle)
) duration ....
P
Power connec
ction .............
R
Rain sensor ...
.....................
R
Ratings ..........
.....................
T
Temperature p
probe ...........
T
Temperature t
test mode ....
T
Temperature u
units .............
T
Troubleshooti
ng ................
.. 10
.. 11
.... 8
.. 14
.... 2
.... 7
.. 15
.. 14
.. 21
1
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Related Manuals for Phason NVC-2-12
Summary of Contents for Phason NVC-2-12
- Page 1 Phason Natur ral Vent tilation Contro l, 12/24 The Natu ural Ventilatio on Control (N NVC) is a fu ully programm mable contro oller that provides extensive fle exibility for yo our curtain o or awning con ntrol needs. T...
- Page 2 Natural V Ventilation Control ason Featur Autom matic temper rature-based control, Alarm relay ( (for external alarm system with e extended tem mperature ran Four-button keypad -13 to o 125°F (-25 to 51.7°C) Four-charact ter LED disp play ...
- Page 3 Phason Natural Ventilation Control Becoming familiar with the NVC Status LEDs Alarm LED ▪ Show the status of the relays ▪ Shows when there is an alarm condition ▪ Show which relay is being Test LED controlled ▪ Shows when test mode is active Version LED ▪...
- Page 4 Natural V Ventilation Control ason Main m menu When you u are in the m main menu, t the display sh hows the men nu items; the e LEDs light t up to show which me enu item is se elected.
- Page 5 7. ut terminal: co nnect an option nal Rain Sensor to this terminal l. For more info rmation, read P Phason Rain Se ensor page 21. B connection: c connect a USB m memory stick to o this connecto r to update the firmware.
- Page 6 Natural V Ventilation Control ason Mountin ng the NVC Select t a location f for the NVC. . Make sure y you have eno ough cable an nd wire to rea ach the equip pment you wa ant to contro Remo ove the screw ws from the f...
- Page 7 Phason Natural Ventilation Control Connecting the temperature probe Follow the guidelines below when installing and connecting the temperature probe. Do not run the probe cable in the same conduit as AC power cables Do not run the sensor cable beside AC power ...
- Page 8 NVC alarm relays must be in series with each other so any control can trigger the alarm system when an alarm condition occurs. Connecting the power source (12 VDC, 250 mA) DC model NVC-2-12 (24 VDC, 125 mA) DC model NVC-2-24 Before connecting the incoming ...
- Page 9 Phason Natural Ventilation Control Programming the NVC Before you begin programming the NVC, make sure the control has power and you have properly connected all equipment to the correct terminals. How the curtain settings work There are six curtain settings.
- Page 10 Natural Ventilation Control Phason Time (seconds) Open off duration: 120 seconds After the curtain opens for the it holds its position for the Open on duration: 30 seconds If the temperature rises above the the curtain opens for the Idle band: 4° (+/– 2°F) Set point (80°F)
- Page 11 Phason Natural Ventilation Control To program the Open off duration Default: 180 seconds, range: 1 to 900 (up to 15 minutes) 1. Press until the display shows 0 o f f . Down 2. Press Select The current setting (in seconds) displays and the LED flashes.
- Page 12 Natural Ventilation Control Phason How the heater settings work When the temperature is below the , the NVC switches the heater on. When the Heat set point temperature is above the plus the , the NVC switches the heater off.
- Page 13 Phason Natural Ventilation Control Alarm settings and conditions When there is an alarm condition, the alarm relay activates and the Alarm LED flashes. The display alternates between the ambient temperature and the alarm message. When the condition goes away, the alarm relay deactivates and the Alarm LED switches off. The display continues to alternate between the temperature and alarm message until you acknowledge the alarm.
- Page 14 Back Enabling the optional rain sensor With the optional Phason Rain Sensor installed, the NVC automatically the curtain when rainfall is detected. When the sensor detects rain, it sends a signal to the NVC. When the NVC receives the signal, it completely closes the curtain, bypassing the on and off durations. After 15 minutes with no new rainfall, the NVC returns to normal operation.
- Page 15 Phason Natural Ventilation Control If you are installing a Phason Rain Sensor, you must enable the sensor input. By default, the input is not enabled. To enable the sensor 1. Press until the display shows s e n s and the LED is lit.
- Page 16 Natural Ventilation Control Phason Testing the alarm You can manually switch the alarm relay on and off so that you can test your alarm system. To test the alarm 1. Press until the display shows a L a r .
- Page 17 Phason Natural Ventilation Control There is a three-second delay when switching between Open and Close. This is to allow the motor to stop before switching directions. The NVC remains in override mode until you exit; it does not timeout or exit ...
- Page 18 Natural Ventilation Control Phason Restoring the factory default settings Setting Default Range/options Set point 70.0 -13 to 125°F (-25 to 51.7°C) Open ON duration 1 to 900 seconds Open OFF duration 1 to 900 seconds Close ON duration 1 to 900 seconds...
- Page 19 Back Updating the firmware At Phason, we constantly improve and add new features to our products. You can the firmware in your NVC as these improvements become available; all you need is a USB memory stick and a firmware update file.
- Page 20 Natural Ventilation Control Phason To update the firmware using the POWER ON method 1. Loosen the four cover screws and gently remove the cover from the control. Make sure not to disconnect the ribbon cable from the base; it must stay properly connected.
- Page 21 Optional accessories and kits Phason Rain Sensor The Phason Rain Sensor (model PRS) connects to the NVC and allows it to close the curtain when rainfall is detected. When the sensor detects rain, it sends a signal to the NVC.
- Page 22 The Phason Rain Sensor's durable and rugged enclosure is completely sealed, so there are no electronics to corrode, and no openings for debris to collect.
- Page 23 If the display fails, you can replace it with a display kit. After replacing the display, you will need to program the control. If the bottom circuit board fails, you can replace it with a control kit. Model NVC-2-12 Display kit model K331003 ...
- Page 24 NVC. Any implied warranties are excluded. Phason is not liable for consequential damages caused by the NVC. Phason does not assume or authorize any representatives, or other people, to assume any obligations or liabilities, other than those specifically stated in this warranty.
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