Cambridge Air Solutions BACNET EVAP User manual

CambridgeAirSolutions 10/31/2022
BACnetControllerEVAPTechnicalManual  Version4.0.2.0002
OPERATING INSTRUCTIONS
BACNET CONTROLLER- EVAP
The BACnet Controller is a native BACnet®, fully programmable, direct digital controller. It provides a
communication link between a BAS (Building Automation System) and the Cambridge unit. The
controller provides precise monitoring and control of connected points.
BACnet®MS/TP compliant operating at up to 76.8 kilobaud
BTL-certified controller
Standard input points for fan status, cooling status, discharge temperature, zone temperature, and
outdoor temperature
Standard output points for fan control, cooling control and fill and drain valves
Selectable operating modes (fan off/on/auto, cooling off/on/auto, heating off/on/auto)
Removable screw terminal blocks
Onboard USB port for firmware upgrades
Local user interface display for commissioning and monitoring

CambridgeAirSolutions 10/31/2022
BACnetControllerEVAPTechnicalManual  Version4.0.2.0002
MS/TP NETWORK CONNECTION
Use stranded 3-wire twisted pair,
shielded cable to connect to FC BUS
(blue) terminals.
Run all low-voltage wiring and cables
separate from high-voltage wiring.
Connect the – terminals in parallel with
all other – terminals and the + terminals
in parallel with all other + terminals.
The FC bus Shield (SHD) terminal is
isolated and can be used to as a shield
drain connection.
END-OF-LINE TERMINATION
If a controller is on either end of a BACnet
MS/TP network an EOL terminator (JCI # MS-
BACEOL-0) must be installed for proper
network operation.

NETWORK PARAMETERS
Before operating controllers on a bus, you must
set a valid and unique device address for each
controller on the bus through the local display or
MAP gateway. Device addresses 4 through 127
are the valid addresses for these controllers. The
MAC address is set for a default of 4.
The baud rate is set for a default of Auto. The
controller will listen for the bus supervisor to
communicate first; then automatically set its
baud rate to the bus supervisor’s baud rate. If
you anticipate critical peer-to-peer
communication and therefore do not want the
controllers to wait for the bus supervisor to
establish the baud rate, you can specify the baud
rate for each device immediately at startup.
To change any of the network settings (Device
Name, Description, Address, Device Object ID)
go to Controller > Network from the local
display or MAP gateway.
NOTE: When changing any network parameters
it is recommended that the controller be
disconnected from the network while the
changes are being made and that the power be
cycled to the controller after all changes have
been made before reconnecting the controller to
the network.
+ - COM SHD
+ - COM SHD

CambridgeAirSolutions 10/31/2022
BACnetControllerEVAPTechnicalManual  Version4.0.2.0002
POINTS LISTS
The following lists of points are accessible via the network. Points listed as optional may not be
applicable to all systems.
INPUT OBJECTS
Type Object Input# Description Writable Values
Binary MV:29563 BI:1 Burner Status (optional) False 0 = Off / 1 = On
Binary MV:29507 BI:2 Supply Fan Status False 0 = Off / 1 = On
Binary MV:29535 BI:5 Low Water Switch #1 False 0 = Open / 1 = Closed
Binary MV:29555 BI:6 Low Water Switch #2 (optional) False 0 = Open / 1 = Closed
Type Object Input# Description Writable Units Range
Analog AV:29504 UI:14 Discharge air temperature False °F -50 - 250
Analog AV:29550 UI:15 Water Conductivity #2 (optional) False (μS/cm) 0-10,000
Analog AV:29506 UI:16 Outdoor air temperature False °F -50 - 250
Analog AV:29507 UI:17 Zone temperature (optional) False °F -50 - 250
Analog AV:29508 UI:18 Water Conductivity #1 (optional) False (μS/cm) 0-10,000
OUTPUT OBJECTS
Type Object Output# Description Writable Values
Binary MV:29564 BO:4 Burner command (optional) False 0 = Off / 1 = On
Binary MV:29516 BO:6 Indirect Pump command (optional) False 0 = Off / 1 = On
Binary MV:29550 BO:8 Direct Pump command (optional) False 0 = Off / 1 = On
Binary MV:29520 BO:10 Supply Fan command False 0 = Off / 1 = On
Binary MV:29521 BO:11 Drain Valve #1 command False 0 = Open / 1 = Closed
Binary MV:29522 BO:12 Fill Valve #1 command False 0 = Closed / 1 = Open
Binary MV:29553 BO:13 Drain Valve #2 command (optional) False 0 = Open / 1 = Closed
Binary MV:29554 BO:14 Fill Valve #2 command (optional) False 0 = Closed / 1 = Open
Type Object Output# Description Writable Units Range
Analog AV:29551 AO:1 Burner Modulation (optional) False % 0 - 100
Analog AV:29509 AO:2 Supply Fan Output (optional) False % 0 - 100
BINARY VALUE OBJECTS
Object Description Writable Values
BV:29501 System Enable True 0 = Disable / 1 = Enable
BV:29502 Water System Flush True 0 = Off / 1 = On
BV:29512 Supply Fan Runtime Reset True 0 = Off / 1 = Reset
BV:29516 Humidity Lockout Enable True 0 = Disable / 1 = Enable
BV:29517 Burner Runtime Reset (optional) True0 = Off / 1 = Reset

CambridgeAirSolutions 10/31/2022
BACnetControllerEVAPTechnicalManual  Version4.0.2.0002
MULTISTATE VALUE OBJECTS
Object Description Writable States Values
MV:29501 Unit Status False 4
1 = Heating
2 = Satisfied
3 = Cooling
4 = Temperature Unreliable
MV:29505 FCB Baud Rate True
6
1 = Auto
2 = 1200
3 = 9600
4 = 19200
5 = 38400
6 = 76800
MV:29506 Operating Baud Rate False
MV:29507 Supply Fan Status False 2 1 = Off / 2 = On
MV:29525 Control Points True 2 1 = State 0 / 2 = State 1
MV:29534 Supply Fan Fault False 2 1 = Normal / 2 = Alarm
MV:29535 Sensor 1 Alarms False 2 1 = Alarm / 2 = Normal
MV:29536 Supply Air Temperature Sensor Failure False 2 1 = Normal / 2 = Alarm
MV:29537 Outdoor Air Temperature Sensor Failure False 2 1 = Normal / 2 = Alarm
MV:29538 Zone Temperature Sensor Failure False 2 1 = Normal / 2 = Alarm
MV:29539 Supply Fan Control Mode True 3 1 = Hand / 2 = Off / 3 = Auto
MV:29540 Indirect Pump Control Mode (optional) True 3 1 = Hand / 2 = Off / 3 = Auto
MV:29541 Drain Valve 1 Control Mode True 3 1 = Auto / 2 = Close / 3 = Open
MV:29542 Fill Valve 1 Control Mode True 3 1 = Auto / 2 = Close / 3 = Open
MV:29543 Effective Occupancy False 2 Occupied / Unoccupied
MV:29544 Occupied Fan Mode True 3 1 = Auto / 2 = Off / 3 = On
MV:29545 Unoccupied Fan Mode True 3 1 = Auto / 2 = Off / 3 = On
MV:29546 Occupied Cooling Mode True 3 1 = Auto / 2 = Off / 3 = On
MV:29547 Unoccupied Cooling Mode True 3 1 = Auto / 2 = Off / 3 = On
MV:29548 Occupancy Override
True 5
1 = Occupied
2 = UnOccupied
3 = Bypass
4 = Standby
5 = Not Set
MV:29549 Occupancy Schedule
MV:29555 Sensor 2 Alarms False 2 1 = Alarm / 2 = Normal
MV:29557 Cooling Type True 3 1 = X / 2 = Y / 3 = Z
MV:29541 Drain Valve 2 Control Mode (optional) True 3 1 = Auto / 2 = Close / 3 = Open
MV:29542 Fill Valve 2 Control Mode (optional) True 3 1 = Auto / 2 = Close / 3 = Open
MV:29562 Direct Pump Control Mode (optional) True 3 1 = Hand / 2 = Off / 3 = Auto
MV:29563 Burner Status False 2 1 = Off / 2 = On
MV:29565 Burner Modulation Mode True 2 1 = Auto / 2 = Manual
MV:29566 Burner Control Mode True 3 1 = Hand / 2 = Off / 3 = Auto
MV:29567 Burner Alarm Reset True 2 1 = Off / 2 = Reset
MV:29568 Heat/Cool Mode True 2 1 = Heating / 2 = Cooling
MV:29569 Burner Fault False 2 1 = Normal / 2 = Alarm
MV:29570 DAT Low Temperature Alarm False 2 1 = Normal / 2 = Lockout
MV:29571 Heater Lockout Alarm False 2 1 = Normal / 2 = Lockout
MV:29572 System Mode False 5
1 = Heat
2 = Cool
3 = Fan Only
4 = Auto
5 = Off

CambridgeAirSolutions 10/31/2022
BACnetControllerEVAPTechnicalManual  Version4.0.2.0002
ANALOG VALUE OBJECTS
Object Description Writable Units Range Default
AV:29501 Device Address True NA 4 - 127 4
AV:29502 Device Object ID True NA 0 - 4194302 NA
AV:29510 DAT Sensor Offset True °F -10 – 10 0°F
AV:29512 Deadband True °F 0 – 20 0°F
AV:29513 High Drain Threshold True μS/cm 0-10,000 X
AV:29514 Drain Delay Time True Minutes 0 - 120 X min
AV:29515 Drying Time True Minutes 0 - 120 X min
AV:29516 Valve Delay True Minutes 0 - 120 X min
AV:29517 Fan Fault Delay True seconds 0 - 300 60 sec
AV:29518 Water Flush System True μS/cm 0-10,000 X
AV:29519 OAT Sensor Offset True °F -10 – 10 0°F
AV:29520 Low OA Lockout Setpoint True °F 40 – 160 40°F
AV:29521 Pump Down Time True Minutes 0 - 120 X min
AV:29522 Fan Start Delay True Minutes 0 - 120 X min
AV:29524 ZNT Sensor Offset True °F -10 – 10 0°F
AV:29534 Supply Fan Cycle Count False Counts NA NA
AV:29535 Supply Fan Runtime False hours NA NA
AV:29536 Supply Fan Speed (optional) True % 0 - 100 100%
AV:29537 Effective Cooling Setpoint False °F NA NA
AV:29538 OA Econ Lockout Setpoint True °F 40 – 160 65°F
AV:29539 Unoccupied Discharge Air Flow Setpoint True °F 40 – 160 65°F
AV:29540 Occupied Discharge Air Flow Setpoint True °F 40 – 160 65°F
AV:29541 Occupied Zone Cooling Set Point True °F 40 – 160 75°F
AV:29542 Unoccupied Zone Cooling Set Point True °F 40 – 160 85°F
AV:29543 Freeze Stat Setpoint True °F 40 – 160 65°F
AV:29544 Netsensor Temp False °F 32 – 104 NA
AV:29545 Netsensor Humidity False % 0 – 100 NA
AV:29546 RH Setpoint True % 0-100 60%
AV:29547 Inlet Air Cooler True NA 1-2
AV:29548 Number of Pumps True NA 1-2
AV:29549 Stage Up Delay True Minutes 0 - 30 X min
AV:29552 OA Heating Lockout Setpoint True °F 0 – 130 65°F
AV:29553 Discharge Air High Set Point True °F 40 – 160 160°F
AV:29554 Discharge Air Low Set Point True °F 40 – 160 70°F
AV:29555 Occupied Zone Heating Set Point True °F 60 – 90 60°F
AV:29556 Unoccupied Zone Heating Set Point True °F 40 - 80 55°F
AV:29557 Burner Modulation Set Point False % NA NA
AV:29560 Burner Fault Delay True seconds 0 - 300 60 sec
AV:29561 Low Temperature Cutout Setpoint True °F 45 - 55 45°F
AV:29562 Low Temperature Cutout Delay True seconds 0 - 300 60 sec
AV:29563 Effective Heating Set Point False °F NA NA
AV:29564 Effective Discharge Air Set Point False °F NA NA
AV:29565 Burner Runtime False hours NA NA
AV:29566 Burner Cycle Count False Counts NA NA

CambridgeAirSolutions 10/31/2022
BACnetControllerEVAPTechnicalManual  Version4.0.2.0002
OPERATING MODES
FAN / OCCUPIED
Off – Fan doesn’t run
On – Fan operates continuously
Auto – Fan operates if Zone Temperature is
above Zone Occupied Cooling Set Point or
below Zone Occupied Heating Set Point
FAN / UNOCCUPIED
Off – Fan doesn’t run
On – Fan operates continuously
Auto – Fan operates if Zone Temperature is
above Zone Unoccupied Cooling Set Point
or below Zone Unoccupied Heating Set
Point
COOLING / OCCUPIED
Off – Cooling doesn’t run
On – Cooling operates continuously
Auto – Cooling operates if Zone
Temperature is above Zone Occupied
Cooling Set Point
COOLING / UNOCCUPIED
Off – Cooling doesn’t run
On – Cooling operates continuously
Auto – Cooling operates if Zone
Temperature is above Zone Unoccupied
Cooling Set Point
HEATING / OCCUPIED
Off – Heating doesn’t run
On – Heating operates continuously
Auto – Heating operates if Zone
Temperature is below Zone Occupied
Heating Set Point
HEATING / UNOCCUPIED
Off – Heating doesn’t run
On – Heating operates continuously
Auto – Heating operates if Zone
Temperature is below Zone Unoccupied
Heating Set Point
COOLING SETUP PARAMETERS
Cooling Type
Direct
Indirect
Direct/Indirect
Inlet Air Intakes
1
2
DEFAULT SETTINGS
The controller will function to control the unit
without the network being connected, provided
that a Zone Temperature Sensor is connected.
The default settings are:
Zone Occupied Cooling Set Point = 75°F
Zone Unoccupied Cooling Set Point = 75°F
Zone Occupied Heating Set Point = 60°F
Zone Unoccupied Heating Set Point = 55°F
Deadband = 5°F
Cooling Fan Delay = 10 minutes

CambridgeAirSolutions 10/31/2022
BACnetControllerEVAPTechnicalManual  Version4.0.2.0002
LOCAL DISPLAY
The controller includes an onboard illuminated LCD display and 4 buttons for monitoring and adjustment.
Label Name Description
Escape Exit the current menu level and go up one level
Enter Access the menu
Accept the current selection
Up Scroll through menu selections
Adjust current parameter selection
Down
SETTING COMMON PARAMETERS
NETWORK SETTINGS
1. Press ent button on the controller to access
the menus.
2. Press or button to scroll to Controller.
3. Press ent button.
4. Press or button to scroll to Network.
5. Press ent button.
6. Press or button to select desired setting
to change:
Address (4-127, must be unique)
Device Object ID (must be unique)
FC Communication Mode
Baud Rate (Auto recommended, use
38400 for Smart Building Hub)
BACnet Encoding Type
7. Press ent button. Current setting will be
displayed.
8. Press and hold ent button. Display will flash
for editing mode.
9. Press or button to change to setting.
10. Press ent button. Display will stop flashing
to indicate value has been saved.
11. Press esc button to return to Network level.
12. Repeat steps 6-11 to change any other
settings.
13. When completed continue pressing esc
button to return to home screen.
ZONE TEMPERATURE SETPOINTS
1. Press ent button on the controller to access
the menus.
2. Press or button to scroll to
Commissioning.
3. Press ent button.
4. Press or button to scroll to
Occupancy.
5. Press ent button.
6. Press or button to select desired
setpoint to change:
Occupied Heating Setpoint
Occupied Cooling Setpoint
Unoccupied Heating Setpoint
Unoccupied Cooling Setpoint
7. Press ent button. Current setpoint will be
displayed.
8. Press and hold ent button. Display will flash
for editing mode.
9. Press or button to change to setting by
0.1°F increments until desired setpoint is
reached.
10. Press ent button. Display will stop flashing
to indicate value has been saved.
11. Press esc button to return to Zone
Temperature Setpoint level.
12. Repeat steps 6-11 to change any other
setpoints.
13. When completed continue pressing esc
button to return to home screen.

CambridgeAirSolutions 10/31/2022
BACnetControllerEVAPTechnicalManual  Version4.0.2.0002
TROUBLESHOOTING
The status LEDs indicate power connection and network
communication
Label Color Normal State Description
Power Green On Steady
On Steady = Power Connected
Off Steady = No Supply Power. Check Output wiring for short circuits and
cycle power to the controller.
Fault Red Off Steady
Off Steady = No Faults
On Steady = Device Fault: no application loaded; Main Code download
required if controller is in Boot mode, or a firmware mismatch exists
between the PEAK controllers and the ZRF1811 Wireless Field Bus
Router.
Blink - 2 Hz = Download or Startup in progress, not ready for
normal operation
SA Bus Green Blink - 2 Hz
Blink - 2 Hz = Data Transmission (normal communication)
Off Steady = No Data Transmission (Auto baud in progress)
On Steady = Communication lost, waiting to join.
FC Bus Green Blink - 2 Hz
Blink - 2 Hz = Data Transmission (normal communication)
Off Steady = No Data Transmission (Auto baud in progress)
On Steady = Communication lost, waiting to join.
Mod Bus Green Blink - 2 Hz
Blink - 2 Hz = Data Transmission (normal communication)
Off Steady = No Data Transmission (Auto baud in progress)
On Steady = Communication lost, waiting to join.
NOTE:
If the display/buttons do not work there is a ribbon cable under the controller cover that may become
disconnected. Remove the cover and carefully reconnect the ribbon cable.
ALARM MESSAGES
Object Message Description Reset
MV:29537 Outside Air Temperature Sensor Failure Thermistor on Input #16 open or shorted Automatic
MV:29536 Supply Air Temperature Sensor Failure Thermistor on Input #14 open or shorted Automatic
MV:29538 Zone Temperature Sensor Failure Thermistor on Input #17 open or shorted Automatic
MV:29569 Burner Fault Input #1 open with call for burner Automatic
MV:29535 Low Water Switch #1 Alarm
(Sensor 1 Alarm) Input #5 open Automatic
MV:29555 Low Water Switch #2 Alarm
(Sensor 2 Alarm) Input #6 open Automatic
MV:29543 Fan Alarm
(Supply Fan Fault) Input #2 open with call for fan Automatic
MV:29571 Heater Lockout Alarm Input #3 closed Manual
MV:29570 DAT Low Temp Alarm
(Low Temperature Fault)
Supply air temperature below Low Temp
Cutout Setpoint Manual
POWER
FAULT
SA BUS
FC BUS
MODBUS

CambridgeAirSolutions 10/31/2022
BACnetControllerEVAPTechnicalManual  Version4.0.2.0002
COMMUNICATION ISSUES
CONTROLLER PARAMETERS CHECKLIST
□Does each controller have a unique MAC address?
Default = 4, Range = 4 – 127
Network setting = AV:3003
Keypad access = ent > >Controller>Network>Address
□Does each controller have a unique Object ID?
Default = 0, Range = 0 – 4,194,302
Network setting = AV:3004
Keypad access = ent > >Controller>Network>Device Object ID
□Is the FC Comm Mode set to Wired Field Bus?
Keypad access = ent > >Controller>Network>FC Comm Mode
□Does the Communication Status show Active?
Keypad access = ent > >Controller>Network>Communication Status
□Is the baud rate set the same for all components??
Default = Auto, Range = Auto, 1200, 9600, 19200, 38400, 76800
Network setting = AV:3007
Keypad access = ent > >Controller>Network>Baud Rate
NOTE: For 76800 baud be sure the recommended cable type and maximum length are followed.
□Is the BACnet Encoding Type set the same for all components?
ISO 10646 (USC-2), ANSI X3.4 (US-ASCII), Microsoft DBCS code page, ISO 10646 (UTF-8)
Keypad access = ent > >Controller>Network>BACnet Encoding Type
WIRING CHECKLIST
□Are the network connections wired to the FC bus terminals (blue)?
□Are the network connections using 3-wire twisted shielded cable?
□Are the terminal connections correct at each controller? (SHD/COM/-/+)
□Are end-of-line terminations installed? (JCI # MS-BACEOL-0 recommended)

CambridgeAirSolutions 10/31/2022
BACnetControllerEVAPTechnicalManual  Version4.0.2.0002
MENU STRUCTURE
The following is the menu structure for accessing settings via the local display or MAP gateway.
STATUS
├Unit Status
├System enable
├Heat Cool Mode
├Effective Discharge Air Temperature
├Effective Outdoor Temperature
├Effective Zone Air Temperature
├Water Meter 1
├Water Meter 2
├Netsensor Temp
├Netsensor Humidity
├Effective Occupancy
├Effective Cooling Setpoint
├Effective Heating Setpoint
├Burner Modulation Output
├Supply Fan Output
├Burner Command
├Pump 1
├Pump 2
├Pump 3
├Pump 4
├Supply Fan Command
├Drain 1 Valve Command
├Drain 2 Valve Command
├Fill Valve
├Iso Valve 2 Command
├Sensor 1 Alarms
├Supply Fan Fault
├Sensor 2 Alarms
├Low OA Lockout Protect
├Freeze Stat Event
└Cooling Disable
SUMMARY
├Inputs
│├Burner Status
│├Supply Fan Status BI
│├Sensor 1 Alarms
│├Sensor 2 Alarms
│├Effective Discharge Air Temperature
│├Water Meter 2
│├Effective Outdoor Air Temperature
│├Effective Zone Air Temperature
│└Water Meter 1
├Outputs
│├Burner Modulation Output
│├Supply Fan Output
│├Burner Command
(continued from left)
│├Pump 1
│├Pump 2
│├Pump 3
│├Pump 4
│├Supply Fan Command
│├Drain 1 Valve Command
│├Fill Valve
│├Drain 2 Valve Command
│└Iso Valve 2 Command
├Network Sensor
│├Netsensor Temp
│└Netsensor Humidity
├Alarms
│├Sensor 1 Alarms
│├Sensor 2 Alarms
│├Supply Fan Fault
│├Freeze Stat Event
│├Low OA Lockout Protect
│├Cooling Disable
│├Supply air temperature sensor failure
│├Outside air temperature sensor failure
│├Zone temperature sensor failure
│├Burner Fault
│├DAT Low Temp Alarm
│└Heater Lockout Alarm
└Totalization
├Supply Fan Cycle Count
├Supply Fan Runtime
├Supply Fan Runtime Reset
│├False
│└True
├Burner Runtime
│└0 – 10000 Counts
├Burner Cycle Count
│└0-10000 Hours
└Burner Runtime Reset
├False
└True