Prolon M2000 SERIES Installation instructions

HARDWARE GUIDE
Fan Coil Controller M2000 Series
Specifications and Operational Guide
REV. 7.4.0
PL-HRDW-FCU-M2000-C/F-EN
www.proloncontrols.com |[e-mail]
17 510, rue Charles, Suite 100, Mirabel, QC, J7J 1X9

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Table of Contents
General Information ....................................................................................................................................................... 4
PL-M2000 Fan Coil Controller.........................................................................................................................................................................4
Description............................................................................................................................................................................................................4
General Behavior ................................................................................................................................................................................................4
Operating Sequence ....................................................................................................................................................... 5
Fan............................................................................................................................................................................................................................5
Two-Pipe System.................................................................................................................................................................................................5
Four Pipe System ................................................................................................................................................................................................5
Components .................................................................................................................................................................... 6
Component Identication...............................................................................................................................................................................6
LEDs and Switches..............................................................................................................................................................................................7
HAND/OFF/AUTO Switches .............................................................................................................................................................................8
Jumpers..................................................................................................................................................................................................................8
Input and Output Identication....................................................................................................................................................................9
Addressing Dipswitch Conguration for Network Communication............................................................................................. 10
Inputs ..............................................................................................................................................................................11
Temperature Sensors ......................................................................................................................................................................................11
Alarm Input.........................................................................................................................................................................................................11
Proof of Fan.........................................................................................................................................................................................................12
Room Sensors ....................................................................................................................................................................................................12
Analog Room Sensor (PL-RS Series) ...........................................................................................................................................................12
Digital Room Sensors......................................................................................................................................................................................13
Outputs .......................................................................................................................................................................... 14
Output Specications .....................................................................................................................................................................................14
Typical Connection the Digital Outputs...................................................................................................................................................15
Typical Connection of Analog Outputs ....................................................................................................................................................15
Power Source & Network.............................................................................................................................................. 16
Power Source .................................................................................................................................................................................................... 16
Network Communication............................................................................................................................................................................. 16
Technical Specications ................................................................................................................................................17
Compliance .................................................................................................................................................................... 18
FCC User Information......................................................................................................................................................................................18
Industry Canada ...............................................................................................................................................................................................18
Overall Dimensions....................................................................................................................................................... 19

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Table of Figures
Figure 1 - Component Identication..................................................................................................................................................................6
Figure 2 - LEDs Identication................................................................................................................................................................................7
Figure 3 - Location of the EXTERNAL jumpers...............................................................................................................................................8
Figure 4 - Location of the INTERNAL jumpers.................................................................................................................................................8
Figure 5 - INT and NET jumpers ...........................................................................................................................................................................8
Figure 6 - AI jumpers................................................................................................................................................................................................8
Figure 7 - RJ45 Pinout..............................................................................................................................................................................................9
Figure 8 - Input and Output Identication (Two-Pipe System).................................................................................................................9
Figure 9 - Input and Output Identication (Four Pipe System) ............................................................................................................. 10
Figure 10 - Addressing Dipswitch..................................................................................................................................................................... 10
Figure 11 - Connecting the Temperature Sensors.......................................................................................................................................11
Figure 12 - Connecting the Alarm Input Contacts to the Controller ....................................................................................................11
Figure 13 - Connecting the Proof of Fan Contact to the Controller......................................................................................................12
Figure 14 - Typical Wiring of the PL-RS Room Sensor to the Controller................................................................................................12
Figure 15 - Connecting the Digital Sensor to the Controller ....................................................................................................................13
Figure 16 - Wiring Example of Digital Outputs 1 and 2.............................................................................................................................15
Figure 17 - Wiring Example of Analog Output 1..........................................................................................................................................15
Figure 18 - Connecting the 24VAC Power Source....................................................................................................................................... 16
Figure 19 - Connecting to the Network.......................................................................................................................................................... 16
Figure 20 - M2000 Size Diagram........................................................................................................................................................................19

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General Information
Description
The Prolon M2000-FCU Fan Coil Controller is a microprocessor-based controller designed to operate Two-Pipe or Four-
Pipe hydronic systems. It uses PI (Proportional-Integral) control loops to optimize HVAC management and oers a variety
of functions such as Two-Pipe automatic mode-change based on supply water temperature, periodic purge cycles, se-
condary backup heat control and more.
General Behavior
The Prolon M2000 Fan Coil controller monitors dedicated inputs and uses pre-established control sequences to drive
Fan Coil equipment using dedicated outputs. The main goal of this controller is to keep the zone temperature within the
user-dened setpoints by driving valves, allowing hot or cold water to ow through heat exchanger coils as required,
and then circulating air past these coils into the zone via a fan. The FCU controller supports both On-O and Modulating
valves in either Two-Pipe or Four-Pipe congurations. Additional backup reheat and preheat sequences can activate to
heat the air as required. When networked with other Prolon devices, the FCU controller can periodically share its status
to a Master controller and help drive the direction of the whole system.
PL-M2000 Fan Coil Controller

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Operating Sequence
Fan
The Fan can operate in Single Speed or Two Speed Mode. The rst speed is primarily occupancy based, but can be con-
gured to activate on a call for heat or cool. The user can dene how the fan reacts based on various states of occupancy,
which can be received via the Prolon Network from a Network or Master controller. If no Prolon Network is present, the
M2000-FCU determines its occupancy state from on on-board real-time clock.
The second speed, if enabled, responds to valve activity. When a valve opens past a congurable threshold, the second
fan speed is activated.
Note that valves require a call for the rst fan speed before they can open.
Two-Pipe System
In a Two-Pipe setup, the FCU controller constantly monitors the water supply mode and can then react intelligently to
calls for heat or cool by opening the valve only if the water supply is favorable. The water supply temperature can be
obtained via a local thermistor input, a dry contact or shared via the Prolon Network. In the case of a local thermistor, a
purge cycle is available to periodically ush out stagnant water and update the water supply mode.
The valve requires a call for fan (but not proof) before it can open.
A reheat sequence is available to heat the air in case the water supply is not in heating mode, or if an alarm condition
occurs.
Additionally, a supplemental heat sequence is available even if the water supply is in heating mode. This sequence is acti-
vated when the supply air temperature fails to rise following extended use of the valve and no improvement in the zone.
Congurable outside air and supply air temperature limits are also in place to establish safeguards on operation.
Four Pipe System
In a Four-Pipe setup, the FCU controller does not need to track the water supply temperatures since it is assumed that the
heating and cooling valves will have continuous access to adequate sources of hot and cold water, and they will simply
open respectively on a call for heating or cooling.
The valves require a call for fan (but not proof) before they can open.
A reheat sequence is available to heat the air in case an alarm condition occurs.
Additionally, a supplemental heat sequence is available, which activates when the supply air temperature fails to rise
following extended use of the heating valve and no improvement in the zone.
Congurable outside air and supply air temperature limits are also in place to establish safeguards on operation.

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Components
Figure 1 - Component Identication
Component Identification
Legend:
A- Addressing Dipswitch
B- AUTO/OFF/HAND Switches
C- RS485 INT port for interface communication (RJ45 plug and screw connectors are in parallel)
D- Analog outputs (3)
E- Digital outputs (5)
F- Analog inputs (9)
G- RS485 NET port for network communication
H- Terminal block for 24VAC (Class 2 transformer)
I - Jumpers for terminating and bias resistors for the INT port
J - Jumpers for terminating and bias resistors for the NET port

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LEDs and Switches
The M2000 has various LEDs which are linked to dierent functions and outputs of the controller. Each LED is individually
identied to help the user make a quick visual diagnostic of the controller’s activity and status.
LED Descriptions
•24 VAC: The M2000 is receiving 24 VAC from the power
source.
•5V DC: The microchip and other components on the
M2000 are being powered successfully by a 5 VDC
source derived from the 24VAC source.
•HBEAT: When this LED is blinking, the microchip is
active and the controller’s program is running (normal).
When this LED is ON and steady, the M2000 is inactive
and the microchip is awaiting programming (you must
use Prolon’s Focus software to reprogram the
microchip).
•STAT: Reserved.
•NETSND: Indicates the transmission of data onto the
network communication bus.
•NETREC: Indicates reception of data from the network
communication bus.
•INTSND: Indicates the transmission of data onto the
interface communication bus.
•INTREC: Indicates the reception of data from the inter-
face communication bus.
•AO3: The intensity of the LED represents the voltage
present on analog output 3.
•AO2: The intensity of the LED represents the voltage
present on analog output 2.
•AO1: The intensity of the LED represents the voltage
present on analog output 1.
•DO5: Represents the activity of digital output 5.
•DO4: Represents the activity of digital output 4.
•DO3: Represents the activity of digital output 3.
•DO2: Represents the activity of digital output 2.
•DO1: Represents the activity of digital output 1.
Figure 2 - LEDs Identication
AO 3
AO 2
AO 1
DO 5
DO 4
DO 3
DO 2
DO 1
INTSND
INTREC
NETSND
NETREC
24VAC
5VDC
HBEAT
STAT

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HAND/OFF/AUTO Switches
Jumpers
Each output on the M2000 has a dedicated switch that lets the user manually override the activity of the output. “HAND”
mode (switch at rightmost position) fully activates the output (24 VAC for digital outputs, 10VDC for analog outputs).
“OFF” (switch at center) deactivates the output and “AUTO” (switch at left) returns control of the output to the program
in the M2000’s microchip.
The M2000 has jumpers that are externally accessible (see Figure 3), as well as jumpers that are on the lower internal
board (see Figure 4), that allow for conguration of various hardware elements.
• INT: These are the jumpers for the bias and terminating resistors used for the interface communication bus. See the
Prolon network guide for information about bias and terminating resistors. (See Figure 5)
• NET: These are the jumpers for the bias and terminating resistors used for the network communication bus. See the
Prolon network guide for information about bias and terminating resistors. (See Figure 5)
• AI 1 - 9: These jumpers allow the user to select the signal mode of the associated analog input. (See Figure 6)
Figure 5 - INT and NET jumpers Figure 6 - AI jumpers
0-5 volts 4-20 mA THERMISTOR
Figure 3 - Location of the EXTERNAL jumpers Figure 4 - Location of the INTERNAL jumpers
INT
NET
AI9
AI8
AI7
AI6
AI5
AI4
AI3
AI2
AI1
Jumper AI

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Input and Output Identification
All the inputs and outputs of the M2000 use pluggable screw type terminal blocks with elevator style clamping, which
make connections easier and more secure.
The M2000 Fan Coil Controller has 2 separate communication ports oering the same functionality on each. Both act as
ports for incoming Modbus communications from other Prolon devices or interfaces, such as a Network Controller or
remote computer with Prolon Focus software.
The “INT” Port (see below) oers dual RJ45 type connectors in parallel with screw type terminal blocks. The RJ45 con-
nectors allow the use of premade CAT5 cables for simple plug-and-play RS485 communication. These RJ45 connectors
follow the Modbus pinout specication for RS485 communication.
Figure 7 - RJ45 Pinout
Figure 8 - Input and Output Identication (Two-Pipe System)
24
VAC
INT Port: Incoming Modbus RS485
communication from digital sensor
-OR- Remote computer with Prolon
Focus Software
DO5 - Reheat (ON/OFF, pulsed)
DO4 - Valve (ON/OFF)
DO2 - Fan Speed 2
DO1 - Fan Speed 1
NET Port: Incoming RS485
network communication (modbus)
Controller’s power source
(24VAC - Class 2)
Bottom row:
common for all outputs
Bottom row:
common for all inputs
AI5 - Zone Air Temperature
AI6 - Zone Setpoint
AI7 - Proof of Fan
AI8 - Alarm
AI3 - Supply Air Temperature
AI2 - Pipe Water Temperature / Changeover
AI1 - Outside Air Temperature
AO1 - Modulating Reheat
AO2 - Modulating Valve

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24
VAC
DO5 - ON/OFF Heat Valve / Reheat
DO4 - ON/OFF Cool Valve
DO2 - Fan Speed 2
DO1 - Fan Speed 1
NET Port: Incoming RS485
network communication (modbus)
Controller’s power source
(24VAC - Class 2)
Bottom row:
common for all outputs
Bottom row:
common for all inputs
AI5 - Zone Air Temperature
AI6 - Zone Setpoint
AI7 - Proof of Fan
AI8 - Alarm
AI4 - Cold Water Temperature (optional)
AI3 - Supply Air Temperature
AI2 - Hot Water Temperature (optional)
AI1 - Outside Air Temperature
AO1 - Modulating Reheat
AO2 - Modulating Cool Valve
AO3 - Modulating Heat Valve
INT Port: Incoming Modbus RS485
communication from digital sensor
-OR- Remote computer with Prolon
Focus Software
Figure 9 - Input and Output Identication (Four Pipe System)
Addressing Dipswitch Configuration for Network Communication
For proper communication, a unique address must be congured on each controller by setting the rst 7 switches on the
addressing dipswitch to the desired value.
These switches are numbered from 1 to 7 and represent a binary value from 1 to 64 (1, 2, 4, 8, 16, 32, and 64 respectively).
The last switch (#8) is reserved. The value of each switch that is in the ON position is added together to form the nume
rical address of the controller.
The example in Figure 10 shows the switches 1, 2 and 4 in the ON position. Therefore, the corresponding values are 1, 2
and 8, giving an address sum of 11.
The Prolon network allows a maximum of 127 addresses; therefore 127 controllers.
Figure 10 - Addressing Dipswitch

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Inputs
Temperature Sensors
Figure 11 - Connecting the Temperature Sensors
The M2000 Fan Coil has four analog inputs that can monitor outside air, coil water supply (hot & cold) and supply air
temperatures and will integrate these readings into its control sequence. The sensors used are standard 10k type 3
thermistors that share a single common connection.
The outside air and two pipe coil water supply temperatures can also be provided by an alternate source on the Prolon
network. If a network or master controller is present, they can relay these reading from one controller to another.
Alarm Input
The M2000 Fan Coil controller can receive an input from an external leak alarm. The alarm can be congured as normally
open or normally closed to match the alarm output type. When activated, the alarm input will cause all water valves to
close and indicate an active “alarm” when the controller is viewed in the Focus software. If the unit has an auxiliary heat
source connected, heating demands will be met using auxiliary heat.
Figure 12 - Connecting the Alarm Input Contacts to the Controller
Hot Supply Water
Sensor
Outside Air Sensor
Supply Air Sensor
Cold Supply Water
Sensor
Alarm on
Contact Closure

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Proof of Fan
Room Sensors
Analog Room Sensor (PL-RS Series)
Two types of room temperature sensors are available:
The M2000 Fan Coil has an analog input dedicated to the proof of fan signal. Please refer to Figure 13 to see how to cor-
rectly connect it to analog input 7. To indicate proof of fan, the contact must be closed.
Figure 13 - Connecting the Proof of Fan Contact to the Controller
Figure 14 - Typical Wiring of the PL-RS Room Sensor to the Controller
Proof of Fan
•Analog: Analog room temperature sensor (thermistor)
with setpoint knob and override button
•Digital: Digital sensor, communicating over RS485 to the
M2000
The PL-RS series room sensors provide the M2000-FCU with a room temperature and setpoint. A push-button is also
present to override the schedule. The PL-RS series are connected using a 3-conductor cable. Note that if a shielded cable
is used to connect the PL-RS, the shield must be grounded at the GND of the M2000 to which it is connected. To activate
the schedule override from the PL-RS, hold the override button for 3 seconds.
PL-RS Room Sensor
Jumper from 1 to 3

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Digital Room Sensors
Prolon oers various digital communicating sensors that can provide the M2000 with room temperature, room setpoint,
and schedule override (T1000, T500, T200 sensors).
Typical wiring is as follows:
Figure 15 - Connecting the Digital Sensor to the Controller
Digital Sensor
4 Conductor Cable
24
VAC
24
VAC
M2000 Power Source
(24VAC -Class 2)

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Outputs
Output Specifications
The M2000 Fan Coil controller has 8 congurable outputs: 5 Triac type 24VAC outputs and 3 analog outputs (0-10VDC,
voltage or pulse width modulation, On-or-O). Output conguration is performed via the Prolon Focus software.
An integrated resettable fuse protects each of the outputs of the M2000 against current surges and short circuits. This
protection will cut the current to the output as soon as an overload condition is detected. The fuse is round and yellow
colored which, upon a short circuit condition, will heat up and change to orange. When the faulty wiring or circuit is
xed, the fuse will automatically reset and allow current to ow through the output again.
Output Type Action
DO 1 Triac source 24VAC,
Max Current: 300 mA On-or-O
DO 2 Triac source 24VAC,
Max Current: 300 mA On-or-O
DO 3 Triac source 24VAC,
Max Current: 300 mA On-or-O
DO 4 Triac source 24VAC,
Max Current: 300 mA
On-or-O /
Pulse Width Modulation
DO 5 Triac source 24VAC,
Max Current: 300 mA
On-or-O /
Pulse Width Modulation
AO 1
Congurable Analog Output:
- 0 to 10 VDC
- 2 to 10 VDC
- 0 to 5 VDC
Max Current: 40 mA
On-or-O /
Pulse Width Modulation /
Voltage Modulation
AO 2
Congurable Analog Output:
- 0 to 10 VDC
- 2 to 10 VDC
- 0 to 5 VDC
Max Current: 40 mA
Voltage Modulation
AO 3
Congurable Analog Output:
- 0 to 10 VDC
- 2 to 10 VDC
- 0 to 5 VDC
Max Current: 40 mA
Voltage Modulation

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Typical Connection the Digital Outputs
Typical Connection of Analog Outputs
On the M2000 Fan Coil controller, all triac outputs produce a 24 VAC live voltage when activated. Note that all output
voltages originate from a single voltage supply: the equipment’s transformer. Consequentially, only the live side of the
output connections are usually needed; these are on the top row. The bottom row is the common (GND).
For all analog outputs, the common is found on the bottom row terminal block, and the active signals are found on the
top row terminal block.
Figure 17 - Wiring Example of Analog Output 1
Figure 16 - Wiring Example of Digital Outputs 1 and 2
Fan High Speed
Equipment Terminal Board
Fan Low Speed
(+)
(-)
External Load
Modulating
Reheat

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Power Source & Network
Power Source
Network Communication
The M2000 controller is powered by a 24 VAC power supply (class 2) by connecting the common (’’C’’ wire) to the "COM"
terminal and the live (‘’R’’ wire) to the "24 VAC" terminal. The common for all inputs and outputs is the same as the power
source’s common. All output power sources also originate from the source transformer (class 2).
The Prolon M2000 Fan Coil controller is designed to work standalone or networked with Prolon master controllers.
When networked, the master transmits the occupancy status, outside temperature and math demand in real-time. The
network connections are made using the network terminal block located on the M2000 controller.
Figure 18 - Connecting the 24VAC Power Source
Figure 19 - Connecting to the Network
( A )
( B )
Towards
RS485
Network
( R )
( C )
To transformer (class 2)
24VAC

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Technical Specifications
Supply: 24 VAC ±10%, 50/60 Hz, Class 2
Power: 5 VA (consumption), 40 VA (input)
Inputs: 8 analog inputs (outside temp / hot supply water temp / supply air temp / cold supply water / zone air temp
/ zone setpoint / fan proof / alarm). Input signals (thermistor / dry contact)
Digital Outputs: 5 triac outputs, 10-30 VAC source, 300 mA max (resettable fuse)
Analog Outputs: 3 x 0-10 VDC outputs, 40 mA max (resettable fuse)
Indication lights (LED): State of each output / Communication / Power / State of microprocessor
Microprocessor: PIC18F6722, 8 bits, 40 MHz, 128KB FLASH memory
Casing: Molded ABS, UL94-HB
Communication: Modbus RTU (RS485) up to 127 nodes
Baud Rates: 9600, 19200, 38400, 57600, 76800, 115200
Connection: Removable screw-type terminal blocks (max 16 AWG) and RJ45 modular jacks
Dimensions: 5.39" x 4.41" x 2.25" (137 mm x 112 mm x 57 mm)
Weights: 1.05 lbs (0.48 kg)
Environment: -4 to 122 ºF (-20 to 50 ºC) Non-Condensing
Certication: UL916 Energy Management Equipment, CAN/CSA-C22.2, RoHS, FCC part 15: 2012 class B
The performance specications are nominal and conform to acceptable industry standards. Prolon Inc. will not be liable for
damages resulting from misapplication or misuse of its products.

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Compliance
• cULus Listed; UL 916 Energy Management Equipment, File E364757, Vol.1
• CAN/CSA-C22.2 No. 2015-12, Signal Equipment
• FCC Compliant to CFR47, Part 15, Subpart B, Class B
• Industry Canada (IC) Compliant to ICES-003, Issue 5: CAN ICES-3 (B)/NMB-3(B)
• RoHS Directive (2002/95/EC)
FCC User Information
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device
may not cause harmful interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.
Caution: Any changes or modications not approved by Prolon can void the user’s authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a resi-
dential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by turning the equipment o and on, the user is encouraged
to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Industry Canada
This Class (B) digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment regulations.
Cet appareil numérique de la Classe (B) respecte toutes les exigences du Réglement sur le matériel brouilleur du Canada.

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Overall Dimensions
REV. 7.4.0
PL-HRDW-FCU-M2000-C/F-EN
4.41"
(112 mm)
5.39"
(137 mm)
2.29"
(58 mm)
Figure 20 - M2000 Size Diagram
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No part of this document may be photocopied or reproduced by any means, or translated to another language without prior written
consent of Prolon. All specications are nominal and may change as design improvements are introduced. Prolon shall not be liable for
damages resulting from misapplication or misuse of its products. All trademarks are the property of their respective owners.