Lynxspring onyxx LX BW437-RTU-LX User manual

BW437-RTU-LX (Roof Top Unit)
Wall Controller Quick Guide
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BW437-RTU Quick Guide
Disclaimer
Please read this manual before proceeding to install this controller or any other Onyxx LX device.
This manual applies to Onyxx LX UI software version 4.0 and higher and using firmware version 1. 058 and higher.
All firmware updates must be done utilizing Supplied USB-COM adapter or USB to MSTP converter cable.
Installations shall be made by a properly certified technician and respect all local mandatory codes and regulations.
Electronic controls are static sensitive devices: discharge yourself properly before manipulating and installing a controller.
Any short circuit or incorrect wiring may permanently damage the controller or the controlled equipment.
Double check all wiring before applying power.
If a control failure could lead to personal injury and/or loss of property, it becomes the responsibility of the installer to
add safety devices and/or alarm system to protect against failures.
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BW437-RTU-LX Quick
Guide Symbol Definitions
The following table lists the symbols used in this document to denote certain conditions:
Symbol Definition
ATTENTION: Identifies information that requires special consideration
TIP: Identifies advice or hints for the user, often in terms of performing a task
REFERENCE _ INTERNAL: Identifies an additional source of information within the bookset.
Indicates a situation which, if not avoided, may result in equipment or work (data) on the system being
damaged or lost, or may result in the inability to properly operate the process.
Indicates a situation where users must observe precautions for handling electrostatic sensitive devices.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury. It may also be used to alert against unsafe practices.
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in serious
injury or death.
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BW437-RTU-LX Quick
Guide Contents
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Disclaimers……………………………………………….
Symbol's definition………………………………………...
Contents…………………….……………………………
Description and model numbers……………………………
Installation…………………………………………………
Mounting………………………………….………….
Internal Jumper Settings………………….………….…
Power Supply Connections…………………..…………
I/O’s Wiring Instructions………………..………………
Interface……………………….…………….……………
Buttons……………………………………………….
Local LCD display………………………………………
Display Messages on Local LCD display……………………
Cooling and Heating Stages Application note……………………
Using the menus……………………………………..…….
Network configuration settings…………………………..
Quick setup menu………………………………………
p. 2
p. 3
p. 4
p. 5
p. 6
p. 7
p. 8
p. 9
p. 10
p. 12
p. 12
p. 13
p. 14
p. 15
p. 16
p. 16
p. 17
Applications, sequences and curves………………………….
RT 2STG –RTU -2 Stage Heat / 2 Stage Cool……………..
RT ECON –RTU - 2 Stage Heat / 2 Stage Cool with Modulating
Economizer ……………….…………………………….
HP 2STG –Heatpump - 2 Stage Compressor / Reversing Valve
with Modulating Economizer ……………………..………
RT IAQ -RTU -2 Stage Heat / 2 Stage Cool with Modulating
Economizer and CO2…………………………….………
RT MOD –RTU -1 Stage Heat / 2 Stage Cool with Modulating
Heat……………………………………………………
HP DEH –Heatpump –2 Stage Compressor/Reversing Valve
with Staged Dehumidification……………………………
HUM-DEH –RTU –2 Stage Heat / 2 Stage Cool, Staged
Dehumidification with Modulating Humidifier………………
HUM-DEH –HP –2 Stage Heat / 2 Stage Cool, Staged
Dehumidification with Modulating Humidifier………………
RT 2STG –RTU -2 Stage Heat / 3 Stage Cool…….……..
RT 2STG –RTU -2 Stage Heat / 4 Stage Cool…………….
Service menu……………………………………………
Test IO menu…………………………………………….
Physical Inputs and Outputs……………………………….
Analog Values………………………………………….
Binary Values…………………………………………….
Multi-State Values……………………………………….
Specifications…………………………………. ………….
p. 20
p. 20
p. 22
p. 25
p. 27
p. 29
p. 31
p. 33
p. 35
p. 33
p. 36
p. 38
p. 40
p. 41
p. 42
p. 43
p. 45
p. 46
RS485 Network Guidelines…………………………………. …p. 58
p. 63

BW437-RTU-LX Quick
Guide Models Available
BW437-RTU-LX
Base Model
BW437MH-RTU-LX
Base Model
w/PIR Motion Sensor
w/Humidity Sensor
BW437HC-RTU-LX
Base Model
w/Humidity Sensor
w/CO2 Sensor
BW437MHC-RTU-LX
Base Model
w/PIR Motion Sensor
w/Humidity Sensor
w/CO2 Sensor
BW437H-RTU-LX
Base Model Base
Model w/Humidity
Sensor
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1. After unpacking your BW437-RTU-LX,
unscrew the retaining screw at the
bottom of the unit.
Installation
BW437-RTU-LX Mounting Instructions
2. Gently pull the cover away
from the base.
3. Pull the wires through the hole in
the base.
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4. Connect the wires to the terminal,
referring to the chart inside the
base for the proper connections.
5. Before replacing the cover, make sure that you
have made any necessary modification to DIP
switch or jumper settings (see “Jumper Settings”).
Electronic controls are static sensitive devices; discharge yourself properly before manipulating and installing the device.
Short circuits or incorrect wiring may permanently damage the controller. Double check your wiring before applying power.
If acontrol failure could lead to personal injury and/or loss of property, the installer must add safety devices and/or alarm
systems to protect against failures.
Installation
BW437-RTU-LX Mounting Instructions
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Installation
Internal Jumper Settings
Jumpers setting:
JP2 to select between BO7 or AO1:
Jumper up = Using BO7 (Low Speed Fan)
Jumper down = Using AO1 (ECM)
JP3 enables EOL ( 120 Ohm ) :
Set jumpers to EOL position if this device is the
last node of the BACnet MS/TP network.
Jumper up = EOL not activated
Jumper down = EOL activated
MS/TP Network
Power Supply
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Installation
Power Supply Connections
COM
24VAC
2 A
240-120/24VAC
Transformer
Add 24VAC transformer
when the power is not
supplied by the equipment
Always protect
your circuit with a
2 A fuse
Wire size based on VA rating and distance from Power source
The BW437 must be powered using a
Class 2, 24Vac transformer. When
powering from a 24Vac transformer, do not
ground either side of the transformer’s
secondary
For details on grounding within control
panels, NFPA 79 and UL508A provide the
required details. WARNING: Internally, this device utilizes a half-wave rectifier and
therefore can only share the same AC power source with other half-
wave rectified devices. Sharing AC power with full wave rectified
devices is NOT recommended. If not properly wired, connecting
controllers on an MSTP BACnet network that have internal full wave
rectifier controllers with Onyxx LX half-wave controllers can have
adverse effect on network communications and in some cases would
result in damaging the Onyxx LX Controllers. Not properly wiring
the devices will void the warranty.
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Installation
I/O Wiring Instructions
(R)
BO1
BO2
BO3
BO4
BO5
BO6
AO1/BO7
AO2
AO3
COM
AI1
AI2
A+
B-
AO4
COM
AI3
AI4
MS/TP
Supported Wire Size 28-16 AWG
RS-485 Wire Required for communications wiring
**recommend using pilot relays in any application utilizing Binary outputs
asswitching loads. **
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Installation
I/O Wiring Instructions
Factory Program Terminal Functions as per MSV127 Preset Applications
See Each Detailed Sequence for I/O Function & Wiring
I/Os
Connector Object Name
RT 2STG RT ECON HP 2STG RT IAQ RT MOD HP DEH HUM-DEH RT 3STG RT 4STG HP 3STG HP 4STG
1COM COM COM COM COM COM COM COM COM COM COM
224V 24V 24V 24V 24V 24V 24V 24V 24V 24V 24V
3(R) (R) (R) (R) (R) (R) (R) (R) (R) (R) (R)
4 BO1
BO_1
G G G G G G G G G G G
5 BO2
BO_2
Y1 Y1 Y1 Y1 Y1 Y1 Y1 Y1 Y1 Y1 Y1
6 BO3
BO_3
Y2 Y2 Y2 Y2 Y2 Y2 Y2 Y2 Y2 Y2 Y2
7 BO4
BO_4
W1 W1 W1 W1 W1 O (O/B) W1 Y3 Y3 Y3 Y3
8 BO5
BO_5
W2 W2 O (O/B) W2 *DeHum W2 W1 Y4 O (O/B) Y4
9 BO6
BO_6
OCC OCC OCC *OCC OCC Dehum W2 W1 OO (O/B)
10 BO7
BO_7
P-EXH P-EXH P-EXH P-EXH P-EXH * * OCC W2 OCC OCC
10 AO1
AO_1
* * * * * * Hum ****
11 AO2
AO_2
*** Analog heat Analog heat * * * * W1 W1
12 AO3
AO_3
* * * * * * OCC ****
18 AO4
AO_4
*Econo Econo Econo * * * * OCC * *
13 COM COM COM COM COM COM COM COM COM COM COM
14 AI1
AI_1
BI1 BI1 BI1 BI1 BI1 BI1 BI1 BI1 BI1 BI1 BI1
15 AI2
AI_2
OAT OAT OAT OAT OAT WS Supply RH high limit OAT OAT OAT OAT
20 AI3
AI_3
SAT SAT SAT SAT SAT SAT SAT SAT SAT SAT SAT
21 AI4
AI_4
RS RS RS RS RS RS RS RS RS RS RS
(Internal) AI5
RoomT
Room T Room T Room T Room T Room T Room T Room T Room T Room T Room T Room T
(Internal) AI6
RoomRH
Room RH Room RH Room RH Room RH Room RH Room RH Room RH Room RH Room RH Room RH Room RH
(Internal) AI7
RoomCO2
Room CO2 Room CO2 Room CO2 Room CO2 Room CO2 Room CO2 Room CO2 Room CO2 Room CO2 Room CO2 Room CO2
(Internal) BI1
Motion
Motion Motion Motion Motion Motion Motion Motion Motion Motion Motion Motion
16 A+ MS/TP A+ MS/TP A+ MS/TP A+ MS/TP A+ MS/TP A+ MS/TP A+ MS/TP A+ MS/TP A+ MS/TP A+ MS/TP A+ MS/TP
17 B- MS/TP B- MS/TP B- MS/TP B- MS/TP B- MS/TP B- MS/TP B- MS/TP B- MS/TP B- MS/TP B- MS/TP B- MS/TP
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Parameters
Buttons
User adjustable interface functions of the BW437-RTU-LX
System Mode
Fan Mode
Up
Down
Please note that attempting to adjust the Setpoint using the arrows, in unoccupied mode,
will automatically set the controller to Override / Day / Occupied mode
Hold for 3 seconds to
display the device Name
Hold for 7 seconds to
Enable or Disable PIR
state screen display. The
backlight display will
follow the PIR
movement detection for
a few minutes
Hold for 3 seconds to
display the device Model
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Display Icons
Local LCD
The signal icon indicates network connection status
Visible and fixed static = Online to both the BACnet MSTP network and the Strato Automation server
Blinking = Online to the BACnet MSTP network only
The lock icon indicates that setpoints have been locked from the network and cannot be modified by the thermostat keys
The wrench icon indicates that the device is in configuration mode
The warning icon indicates that there may be MSTP communication errors / problem (invalid frames)
Check wiring and use an MSTP sniffer tool if necessary
Displays whether the time is AM or PM
This line displays the room temperature or room setpoint
Use up and down arrows to temporarily modify the display setpoint
Displays the time (hh:mm) on the first line and the day of the week.
Icon to display night mode / unoccupied.
The water droplet icon indicates whether the dehumidification or humidification process is on and working
The segmented bar indicates whether the humidifier is at 33, 66 or 100% output capacity
The A indicates that the humidity function is in Automatic mode
The fan icon indicates that fan is on and working
The segmented bars indicates whether the fan in 1st, 2nd or 3rd speed
The A indicates that the Fan mode is in Automatic mode
The snowflake indicates that cooling process is on and working
The segmented bar indicates whether the cooling is at 33, 66 or 100% output capacity
The A indicates that the cooling function is in Automatic mode
The flame indicates that heating process is on and working
The segmented bar indicates whether the heating is at 33, 66 or 100% output capacity
The A indicates that the heating function is in Automatic mode
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Display
Messages
Local LCD
AI-1 and AI-2 as external inputs
Display Messages
MSV100
None (None): No function will be associated with the input
Rem NSB Ovr
(NSB Night Setback): NSB timer clock input. The scheduling will now be set as per the binary input. It provides low-cost setback operation via a dry contact.
Contact opened = Unoccupied
Contact closed = Occupied
No Msg (OVR Override): Temporary occupancy remote override contact. This function disables the central button override function on the equipment Controller. The
override function is now controlled by a manual remote closed contact.
Filter
(Filter): Filter will be displayed on the Equipment Controller screen when the input is in fault and MSV100 will provide status alarm.
Contact opened = No alarm
Contact closed = Alarm displayed
Service
(Service): Service will be displayed on the Equipment Controller screen when the input is in fault. It can be tied into the HVAC unit control card, which
provides an alarm in case of malfunction. This is a latching function and requires either a power cycle or writing to MSV3 to Off and then back to the desired
mode to clear this alarm to return the device to normal function.
Contact opened = No alarm
Contact closed = Alarm displayed
Fanlock
(Fan lock): When this input is chosen it will monitor the status of the fan and lock out Fan, Heat and Cool and MSV100 will provide status alarm and FANLOCK
will be displayed on the Equipment Controller screen when in fault. This is a latching function and requires either a power cycle or writing to MSV3 to Off and
then back to the desired mode to clear this alarm to return the device to normal function.
Contact opened = Alarm displayed
Contact closed = No alarm
Frozen
(SupplyFrozen): SupplyFrozen will be displayed on the Equipment Controller screen when in fault. It is trigggered internally
when the measured supply temperature falls below 38 F. This is a latching function and requires a power cycle or writing to
MSV3 to Off and then back to the desired mode to clear this alarm to return the device to normal function. This requires a
supply air sensor.
Display Messages
MSV100
Sequence of each input selection
Sequence
Message
Message

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Cooling and heating stages
Application Note
Binary Output (Binary outputs staging): There is a fixed 3 min delay before the first stage of heating or cooling will start. There is a 1 min delay for each stage afterward. See
demand curves on each sequence in this guide.
Change Over (Heating/Cooling Change Over): There is a fixed 3 min delay before the first stage of heating or cooling will start when changing over from heating or cooling
for both Binary and Analog outputs.
Analog Output (Analog outputs staging): There is a fixed 1 min delay before the analog outputs of heating or cooling will start. Staging will depend on the [AV-59] calculated
effective SAT against the [AV-16] Supply air Temp. This is calculated internally by the PID. See demand curves on each sequence in this guide.

Using the menus
Network Configuration Settings
Set the BW437-RTU’s configuration in the “CONFIG MODE” directly on the BW437-RTU’s
screen using the keypad. To be able to do so, press simultaneously and
buttons for 3 seconds.
Press these PIN keys in sequence on the BW437-RTU’s keypad
CONFIG MODE will blink on the screen
Press the button to start cycling thought the configuration menus .
Press button to cycle through each parameter
Access any configuration menu by pressing on the menu’s display screen,
Using the and the button, adjust each digit to the desired value.
When done, press once more to confirm the new value.
Accept to SAVE by selecting YES and pressing
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Access the “SETUP MENU” directly on the BW437RTU’s screen using the keypad. To be
able to do so, press simultaneously and buttons for 3 seconds.
Press these PIN keys in sequence on the BW437RTU’s keypad
SETUP will appear on the screen for 1 second
The first configurable object to be displayed in the SETUP menu is the PIPENUM
This is the one used for this next example
The object name and the actual configuration will blink alternatively on screen.
Note that the same steps apply to any other configurable object
Use the to change the object SETUP configuration
When the value is as wanted, press or to save the settings and switch to
the next object
To exit SETUP menu, scroll to the QUIT menu using
Press when YES is displayed
Using the menus
Setup menu (quick setup)
MSV127 MSV64 MSV1 AV50
RT 2STG
PRESET
IMPER TYPE 3
RT 2STG RT ECON HP 2STG RT IAQ RT MOD HP DEH HUM-DEH RT 3STG RT 4STG HP 3STG HP 4STG CUSTOM
CFGUNIT CFGSEN
0.00
RT_CAL QUIT
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Using the menus
Setup menus (quick setup)
Object
Instance
Setup menu
Description
Options Function
MSV127 Preset Select application
See Table Next page
MSV64 CFGunit Units configuration Metric
Imper
Sets the system for using metric units (Degree C)
Sets the system for using imperial units (Degree F)
MSV1 CFGSens Remote thermistor type Type 3
Type 2
Sets remote thermistor types to 10K
-3 (10K type 3)
Sets remote thermistor types to 10K
-2 (10K type 2)
AV50 RT_Cal Room temperature calib -3.00 (C/F)
+ 3.00 (C/F)
Allows calibration of the room sensor used for the main temperature control loop of the thermostat. Default is (0.00 C/F)
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Using the Menus
Setup Menus (quick setup)
Table
Application Fan Htg Stg 1 Htg Stg 2 Mod Htg Clg Stg 1 Clg Stg 2 Clg Stg 3 Clg Stg 4 Rev Valve Econ Mod CO2
Dehumid
Stg
Humidifier
Stg
Humidifier
Mod
RT 2STG
RTU X X X X X
RT ECON
RTU X X X X X X
HP 2STG
Heatpump X X X X X X
RT IAQ
RTU X X X X X X X
RT MOD
RTU X X X X X
HP DEH
Heatpump X X X X X
HUM
-DEH RTU X X X X X X X
RT 3STG
RTU X X X X X X X
RT 4STG
RTU X X X X X X X X
HP 3STG
Heatpump X X X X X X
HP 4STG
Heatpump X X X X X X X
Custom
Object
Instance
MSV 127
Please note: MSV, 7, 8, 9, 10, 16, 17, 18, 19, 23, 27, 28, 30, 32, 44, 45, 46, 48, 49 52, 54, 55, 65 & 68 are used for ‘’custom’’ configuration applications.
Make sure MSV127 is set to ‘’custom’’ BEFORE setting any of those MSV’s
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Installation
I/O Wiring & Sequence
MSV127 –RT 2STG
RT 2STG: Sets for a 1 on/off fan, 2 on/off heat & 2 on/off
cooling stages RTU unit
Notes:
-BO6 is an occupancy output that follows the main occupancy
-BO7 is an on/off power exhaust that follows the main occupancy
when the main fan BO1 is on
-AI’s can be configured for various options as per MSV2, 27, 28,
66 & 67
Add 24VAC transformer when the power
is not supplied by the equipment
18
19
20
21
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1COM
24VAC
(R)
BO1
BO2
BO3
BO4
BO5
BO6
AO1/BO7
AO2
AO3
COM
AI1
AI2
A+
B-
AO4
COM
AI3
AI4
MS/TP
AO1
BO7
JP2
EOL
NONE
JP3
Rooftop unit
(2 cooling / 2 heating)
G
C
R
Y1
Y2
W1
W2
OCC
Exh Service
OAT
RS
SAT
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