senva AQW Series User manual
INSTALLATION INSTRUCTIONS
senvainc.com 1-866-660-8864 (F)1-503-296-2529 9290 SW Nimbus Ave. Beaverton Oregon 97008
AQW Series
Analog Version
Room CO2/RH/T combo sensor
IMPORTANT WARNINGS
• Only qualied trade installers should install this product
• This product is not intended for life-safety applications
• Do not install in hazardous or classied locations
• The installer is responsible for all applicable codes
• De-energize power supply prior to installation or service
PRODUCT APPLICATION LIMITATION:
Senva products are not designed for life or safety applications. Senva products
are not intended for use in critical applications such as nuclear facilities, human
implantable device or life support. Senva is not liable, in whole or in part, for
any claims or damages arising from such uses.
PRODUCT IDENTIFICATION
DIMENSIONS
94 mm (3.7 in)
120 mm (4.65 in)
94 mm (3.7 in)
28 mm (1.1 in)
94 mm (3.7 in)
120 mm (4.65 in)
94 mm (3.7 in)
28 mm (1.1 in)
OPERATION
The AQW series design allows customization for a sensor that
meets project requirements for monitoring temperature, CO2
and relative humidity. The product can be ordered as stand
alone temperature, CO2/Temperature, RH/Temperature or all-
in-one CO2/RH/Temperature with a 0-5/10V analog or BACnet
RS485 output. This installation manual applies to the Analog
Version AQW sensor with 0-5/10V output.
To verify the features see the ‘Product Identication’ section of
the installation manual. All versions come with temperature as
a standard output. For CO2 and RH sensing, the option must
be added at the factory.
4.85”
3.25”
1.19”
RTD/Thermistor*
A = None
C = 100Pt (385) RTD
D = 1000Pt (385) RTD
E = 10k type 2
F = 10k type 3
G = 10k w/11k
H = 3k
I = 2k2
J = 1k8
K = 20k
AQW -
Color
1 = White
2 = Ivory
4 = Light Almond
Push Button
A = None
B = Override Button (Requires thermistor)
C = User Push Button
Output
CO2 Sensor
A = None
B = CO2 Sensor
RH Sensor
A = None
B = 2% RH Sensor
Output Type
A = Analog (0-5/10V)
B = Protocol RS-485
Set-Point Slider
A = None
B = 1k (Not valid w/ BACnet)
C = 10k
CO2 RH SLD BTN RTD/TH Color
A
*Add-on RTD/Thermistor not readable via BACnet; Temperature output is
standard on AQW devices, Add-on RTD/Thermistor is option for Analog.
COMPUTER
ROOM
OUTSIDE
WALL OR WINDOW
TOO HOT/COLD
INSIDE WALL
TOO HOT/COLD
COPIER
TOO NEAR
EQUIPMENT OR DOORWAY
GOOD
LOCATION
GOOD
LOCATION
GOOD
LOCATION
WIRING
INSTALLATION
1. IMPORTANT! Locate the device in an area away from
ventilation sources and heat generating equipment and
appliances. The device should be mounted at light switch
height in a vertical orientation. Use insulating material behind
the device to ensure reading accuracy.
NOTE: Do not install the device in multi-gang electrical boxes
with line voltage or other electrical devices.
2. Install backplate to wall or j-box using screws provided.
3. Wire according to installation requirements.
4. Apply power.
5a. Congure the device with ‘Quick Start Menu’ below.
-or-
5b. Congure the device using the extended setup menu (See
‘Menu Options’on page 3 for instructions to access ‘AQ Series
User’s Guide’ online).
PPM
1 0 0 0
REPLACEABLE
CO2 SENSOR
MODULE
POWER VIN
GND/COMMON
N.O. RELAY
N.O. RELAY
OUT CO2
OUT RH
OUT T
PB
PB
TH
TH
MAX
WIPER
MIN
TO ENTER QUICK START MENU:
HOLD AND FOR 1-SEC
REPLACEABLE
RH SENSOR
MODULE
V
T
C
H
TC H
PUSH BUTTON
(OPTIONAL)
V
PUSH BUTTON
(OPTION)
THERMISTOR/OVERRIDE
(OPTION)
SLIDE POTENTIOMETER
(OPTION)
WIRE TERMINAL KEY:
QUICK START MENU
1. Press and hold qand u(the left and center buttons) for 1 second to enter the Quick Start Menu that is adjustable using the
LCD. Screen will display SPt when the menu has been activated.
2. Navigation and parameters:
• Pressing uadvances to the next menu item.
• If a menu item is visible, pressing either qor pdisplays the current value.
• If a value is visible, pressing either qor pchanges the value. Holding qor pfor a time accelerates the value change.
• If a value is visible, pressing qand ptogether sets the value to the default.
• If a value is visible, pressing ureturns to the menu item list.
SPt Sets the relay turn-on threshold (Closed above this level); Default: 800
SPh Sets the relay turn-o hysteresis (Open below this level); Default: 100
SCL Sets the CO2 concentration scaling (2= 2000ppm (default); 5= 5000ppm)
ADj Sets the CO2 concentration calibration oset up to +/-250ppm; Default: 0ppm
CAL Sets the CO2 auto calibration period
Auto calibration disabled, 7 days,1 14 days (default), 0 30 days, 0 60 days
C Selects the unit system for displayed temperature measurements
SUser dened (default), Degrees Fahrenheit, CDegrees Celsius
LvL Output Scaling: 5v5.0V full scale, 10v10.0V full scale (default)
UN Close this menu with changes saved and display parameters.
3. When setup is complete, select RUN or wait for setup mode to time out.
VISUAL INDICATORS
Each measurement should display in turn.
If a measurement does not appear, the respective sensor is
damaged, has been removed from the device, or has been
selected not to appear through the Users Menu (See ‘AQ Series
User’s Guide’).
HOME SCREEN
By default, the device displays one measurement at a time,
rotating between measurements every 10 seconds if multiple
sensor options are installed.
To change which measurements are displayed on the LCD,
access the Users Menu (See ‘AQ Series User’s Guide’).
TROUBLESHOOTING
Symptom Solution
No output Check wiring. Ensure power supply
meets requirements.
Reading error
Verify unit is located away from
hot/cold sources.
Verify control panel software is
congured correctly.
Verify accuracy of test instrument.
Install insulation behind sensor to
prevent air ow from inside wall.
MENU OPTIONS
To access the full menu options use the ‘AQ Series User’s Guide’
manual online at www.senvainc.com/download_center.asp
The ‘AQ Series User’s Guide’includes:
-User’s Menu
-Quick Start Menu
-Setup Menu
-Diagnostics
INSTALLING MENU BUTTON COVER
The AQW installation kit oers two cover options:
If the anti-tamper cover is used, discard the buttons.
When using the LCD bezel, place the two buttons provided in
locations 1 and 2 with the rounded end up/outward.
Snap on the LCD bezel once the buttons have been placed in
positions 1 and 2.
1 2
LCD bezel with user controls
Anti-tamper LCD cover
1 2
THIS END DOWN
Menu Button:
SENVA TECHNICAL SUPPORT
Need futher assistance? Call our toll-free number for live
technical support: (866) 660-8864 or feel free to email us at
1 2
LCD bezel with user controls
Anti-tamper LCD cover
SPECIFICATIONS
Power Supply 12-30VDC/24VAC(1), 100mA max.
Analog Outputs
Temperature 0-5/10V standard; Scaling 50°F to 95°F (10°C to 35°C)
Thermistor/RTD values optional
CO2 and RH 0-5/10V
Update Rate Continuous
Programmable Relay Solid-state output, 1A @ 30VAC/DC, N.O.
Analog LCD Menu
Parameters (2)
Spt, Set point, Hi (On) Sets relay turn-on threshold (800ppm default)
SPh, Set point, hysteresis (O) Sets the relay turn-o hysteresis (100ppm default)
SCL, Scaling 0-2000ppm or 0-5000ppm (2000ppm default)
AJ, Adjustment CO2 Oset adjustment +/-250ppm (0 default)
CAL, Auto Calibration Period O, 7 days, 14 days, 30 days, 60 days (14 days default)
C, Displayed Temp Unit degrees fahrenheit (default), C degrees celsius
LvL Analog Output Scale 5v 5.0V full scale, 10v 10.0V full scale (default)
UN, Run Mode Displays temp and optional CO2 and RH
CO2
Type Non-dispersive Infrared (NDIR)
Accuracy ±40ppm, ±3% of reading (400-2000ppm)
Range 0-2000/5000ppm (2000ppm default); Programmable up to 10,000ppm
Response time 60 seconds to 90% reading
Sample rate 3 seconds
Relative Humidity
Type Digital CMOS
Accuracy 2% models, +/-2% over 10 to 90%RH range
Resolution 0.05%RH
Hysteresis +/-1%RH
Temperature coecient Compensated on-board
Response time (3) 30s
Sample rate 3s
Operating range/Output Scale 0 to 100%RH (non-condensing)
Long term drift <0.5%RH per year
Operating conditions (4) -20° C to 60° C @ RH>90%
-20° C to 80° C @ RH=50%
Type Silicon Bandgap
Temperature
(with RH element)
Nominal Accuracy +/-0.3° C (operating range)
Maximal Accuracy +/-0.5° C (at 25° C), +/-1.0° C (operating range)
Resolution 0.01° C
Repeatability +/-0.1° C
Response time (3) 30s
Sample rate 3s
Type NTC Thermistor
Nominal Accuracy +/-0.5° C (operating range)
Temperature
(without RH element) Maximal Accuracy +/-1.0° C (at 25° C), +/-2.0° C (operating range)
Resolution 0.05° C
Repeatability +/-0.2° C
Sample Rate 100 milliseconds
Operating Environment Temperature 32 to 122F (0 to 50C)
Humidity 0-95% non-condensing
Enclosure Material ABS Plastic
Dimensions 4.85”h x 3.25”w x 1.19”d
(1) One side of transformer, secondary is connected to signal common. Dedicated transformer is recommended.
(2) Quick Start Menu parameters shown, for additional capabilities see ‘AQ Series User’s Guide’.
(3) Time for reaching 63% of reading at 25° C and 1 m/s airow
(4) Long term exposures to conditions outside normal range at high humidity may temporarily oset the RH reading (+3%RH after 60 hours.)
Revised 10/7/2014 Document #152-0161-0B
