Taco Electronic Solutions iWorx CSM1 User manual

© 2013 Taco Electronic Solutions, Inc. 1
Installation Guide 502-045
CSM1 Chilled Beam Sensor Module
Self-Contained Interoperable Controller Model UCP-1 for Software Version 1
SUPERSEDES: New EFFECTIVE: July 25, 2013
Plant ID: 001-4127
Table of Contents
CSM1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Purpose of This Guide . . . . . . . . . . . . . . . . . . . . . . . . . 2
Applicable Documentation . . . . . . . . . . . . . . . . . . . . . . 3
Typical Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Representations and Warranties . . . . . . . . . . . . . . . . . 3
Installation Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Static Electricity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
FCC Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Before Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
About this Document . . . . . . . . . . . . . . . . . . . . . . . . 5
Inspecting the Equipment . . . . . . . . . . . . . . . . . . . . 5
What is Not Included with this Equipment . . . . . . . . 5
Equipment Location . . . . . . . . . . . . . . . . . . . . . . . . . 5
Selecting a Power Source . . . . . . . . . . . . . . . . . . . . 5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mounting the Device . . . . . . . . . . . . . . . . . . . . . . . . 6
Routing Cabling to the Device . . . . . . . . . . . . . . . . . 6
Grounding the Device . . . . . . . . . . . . . . . . . . . . . . . 7
Wiring Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connecting Input Devices . . . . . . . . . . . . . . . . . . . . 8
Other Connections. . . . . . . . . . . . . . . . . . . . . . . . . . 8
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Recommended Sensor Wire . . . . . . . . . . . . . . . . . . 9
Recommended LON Bus FTT-10A Network Wire . . 9
Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mechanical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Diagnostic LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . 11

iWorx® CSM1
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© 2013 Taco Electronic Solutions, Inc.
CSM1
The Chilled Beam Sensor Module is a stand-alone microprocessor based controller for monitoring auxiliary sensors.
The application would include unitary heating, ventilating, and air conditioning (HVAC) equipment.
Overview
Analog inputs are provided for outside air temperature, outside air humidity, inside air humidity, and hot and chilled
water supply water temperatures. A “unit enable” digital input is also provided for confirmation to water dependant sys-
tems. For energy monitoring, digital inputs for meter pulses and end-of-interval signals are also provided.
The controller is based on the LONWORKS®networking technology. The controller can be networked to a higher-level
control system for monitoring and control applications.
Features
• Outside air temperature measurement
• Outside air humidity measurement
• Supply water temperature measurement
• Inside humidity measurement
• Energy meter digital input for pulse counting
• Energy monitoring “end of period” digital input
• Network outputs to LCI for load shedding functions
• Current energy measurement
• Current daily energy consumption measurement
• Log of daily energy consumption (previous 30 days)
• Log of interval energy usage (previous 96 intervals)
• “Unit Enable” digital input
•LONWORKS interface to building automation systems.
• Automatic configuration with the LCI
PURPOSE OF THIS GUIDE
The Installation Guide provides installation and specification information for the Chilled Beam Sensor Module Control-
ler.
The reader should understand basic HVAC concepts, intelligent environmental control automation, and basic LON-
WORKS networking and communications. This guide is written for:
• Users who engineer control logic
• Users who set up hardware configuration
• Users who change hardware or control logic
• Technicians and field engineers of Taco Electronic Solutions, Inc.

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APPLICABLE DOCUMENTATION
See the table below for additional documentation that may be applicable to this controller.
Typical Use
REPRESENTATIONS AND WARRANTIES
This Document is subject to change from time to time at the sole discretion of Taco Electronic Solutions, Inc. All
updates to the Document are available at www.taco-hvac.com. When installing this product, it is the reader’s responsi-
bility to ensure that the latest version of the Document is being used.
Description Audience Purpose
iWorx® Chilled Beam Sensor
Module Application Guide, Docu-
ment No. 001-4128
– Application Engineers
– Wholesalers
– Contractors
Provides specific application information about the Chilled
Beam Sensor Module, including sequence of operation and
configuration information.
iWorx® LCI Application Guide,
Document No. 505-002
– Application Engineers
– Installers
– Service Personnel
– Start-up Technicians
– End user
Provides instructions for setting up and using the iWorx®
Local Control Interface.
http://www.iWorxWizard.com – Application Engineers
– Wholesalers
– Contractors
An on-line configuration and submittal package generator
based on user input. Automatically generates bill of materi-
als, sequence of operations, flow diagrams, wiring diagrams,
points and specifications.
Additional Documentation LonWorks FTT-10A Free Topology Transceiver User’s Guide, published by Echelon Cor-
poration. It provides specifications and user instructions for the FTT-10A Free Topology
Transceiver. Information is also available at the following web site: www.echelon.com/
support/documentation/manuals/transceivers.

iWorx® CSM1
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iWorx® products shall only be used for the applications identified in the product specifications and for no other pur-
poses. For example, iWorx® products are not intended for use to support fire suppression systems, life support sys-
tems, critical care applications, commercial aviation, nuclear facilities or any other applications where product failure
could lead to injury to person, loss of life, or catastrophic property damage and should not be used for such purposes.
Taco Electronic Solutions, Inc. will not be responsible for any product or part not installed or operated in conformity with
the Document and instructions or which has been subject to accident, disaster, neglect, misuse, misapplication, inade-
quate operating environment, repair, attempted repair, modification or alteration, or other abuse. For further informa-
tion, please refer to the last page of this Document for the company’s Limited Warranty Statement, which is also issued
with the product or available at www.taco-hvac.com.
INSTALLATION GUIDE
General
CAUTION: This symbol is intended to alert the user to the presence of important installation and mainte-
nance (servicing) instructions in the literature accompanying the equipment.
CAUTION: Risk of explosion if battery is replaced by an incorrect type. Contains lithium type battery; dis-
pose of properly.
WARNING: Electrical shock hazard. Disconnect ALL power sources when installing or servicing this
equipment to prevent electrical shock or equipment damage.
Make all wiring connections in accordance with these instructions and in accordance with pertinent national and local
electrical codes. Use only copper conductors that are suitable for 167 °F (75 °C).
Static Electricity
Static charges produce voltages that can damage this equipment. Follow these static electricity precautions when han-
dling this equipment.
• Work in a static free area.
• Touch a known, securely grounded object to discharge any charge you may have accumulated.
• Use a wrist strap when handling printed circuit boards. The strap must be secured to earth ground.
FCC Compliance
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of
the FCC rules. These limits are designed to provide reasonable protection against harmful interference. This equip-
ment 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 par-
ticular installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off 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 the receiver.
• Connect the equipment to a power source different from that to which the receiver is connected.
• Consult the equipment supplier or an experienced radio/TV technician for help.
You are cautioned that any changes or modifications to this equipment not expressly approved in these instructions
could void your authority to operate this equipment in the United States.

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BEFORE INSTALLING
About this Document
The instructions in this document are for the CSM1 module, which provides global sensor inputs to other iWorX control-
lers.
Inspecting the Equipment
Inspect the shipping carton for damage. If damaged, notify the carrier immediately. Inspect the equipment for damage.
Return damaged equipment to the supplier.
What is Not Included with this Equipment
• A power source for the equipment electronics and peripheral devices.
• Tools necessary to install, troubleshoot and service the equipment.
• The screws or DIN rail needed to mount the device.
• Peripheral devices, such as sensors, actuators, etc.
• Cabling, cabling raceway, and fittings necessary to connect this equipment to the power source, FTT-10A network
and peripheral devices.
Equipment Location
Abide by all warnings regarding equipment location provided earlier in this document.
Optimally, the equipment should be installed within a secure enclosure.
If the equipment is to be installed outside, it must be contained within a protective enclosure. The enclosure must main-
tain internal temperature and humidity within the ranges specified for this equipment.
The equipment must be installed within 500 feet of all input peripherals (smoke detectors, sensors, etc.) that are con-
nected to the equipment.
Selecting a Power Source
This equipment requires a UL recognized Class 2 external power source (not supplied) to operate. The controller
power input requires a voltage of 24 Volts AC.
To calculate power source current requirements, add the power consumption of all peripheral devices to that of the
controller.
The controller and sensor power supplies can use the same power source. If both are using the same power source,
the loads must have EMF protection. This protection can be integral to the load, or installed in the 24 VAC wiring across
the load’s coil.
To provide necessary RFI and transient protection, the controller’s ground (GND) pin (T40) must be connected to earth
ground or the earth ground of the packaged unit’s enclosure ground. Failure to properly ground the controller may
cause it to exceed FCC limits. Excessive noise could also produce inaccurate sensor data. The power source must be
capable of operating with this connection to ground.
INSTALLATION
Warning: Electrical shock hazard. To prevent electrical shock or equipment damage, disconnect ALL
power sources to controllers before installing or servicing this equipment or modifying any wiring.

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Mounting the Device
1.Select a mounting location. Enclosure mounting is recommended.
2.Hold the controller on the panel you wish to mount it on. With a marker or pencil mark the mounting locations on
the panel.
3.Using a small drill bit pre-drill the mounting holes.
4.Using two #6 pan head screws, mount the controller to the panel.
5.Wire the controller (See Routing Cabling to the Device).
Figure 1: Mounting Dimensions
Routing Cabling to the Device
Cabling used to connect the power source and cabling used to connect the FTT-10A network must remain
separated within the control enclosure and wiring conduit.

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Grounding the Device
The ground terminal (T40) must be securely connected to earth ground. Failure to properly ground this
equipment will result in improper operation. Improper grounding may also increase the risk of electrical
shock and may increase the possibility of interference with radio/TV reception.
For best performance, connect the power supply common terminal (T38) to the same external point as the
ground terminal (T40).
WIRING INFORMATION
WARNING: Terminals 4,6,9,12,15,18 and 38 are connected internally on all CSM1 controllers. Disconnect
ALL power sources when installing or servicing this equipment to prevent electrical shock or equipment
damage.
Figure 2: CSM1 Terminal Connections

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Connecting Input Devices
Outside Air Humidity (OAH)
The sensor must be 0-10 VDC, linear. To connect the Outside Air Humidity sensor to the unit, connect the positive wire
from the sensor to OAH (T19) and the other wire to the adjacent common (T18).
Supply Air Humidity (SAH)
The sensor must be 0-10 VDC, linear. To connect the Supply Air Humidity sensor to the unit, connect the positive wire
from the sensor to SAH (T5) and the other wire to the adjacent common (T6).
Highest Inside Air RH
The Supply Air Humidity, Inside Air Humidity and Slave Air Humidity are compared. The highest humidity value is made
available as a network variable output.
Outside Air (OAT)
To connect the Outside Air thermistor to the unit, attach one wire from the thermistor to OAT (T17) and the other wire to
the adjacent common (T18). The thermistor used must be 10K Precon Type III.
Hot Supply Water Temperature (HSWT)
To connect the Hot Supply Water Temperature thermistor to the unit, attach one wire from the thermistor to HSWT
(T16) and the other wire to the adjacent common (T15). The thermistor used must be 10K Precon Type III.
Supply Air Temperature (SAT)
To connect the Supply Air Temperature thermistor to the unit, attach one wire from the thermistor to SAT (T3) and the
other wire to the adjacent common (T4). The thermistor used must be 10K Precon Type III.
Chilled Supply Water Temperature (CSWT)
To connect the Chilled Supply Water Temperature thermistor to the unit, attach one wire from the thermistor to CSWT
(T7) and the other wire to the adjacent common (T6). The thermistor used must be 10K Precon Type III.
Inside Air Humidity (IAH)
The sensor must be 0-10 VDC, linear. To connect the Inside Air Humidity sensor to the unit, connect the positive wire
from the sensor to IAH (T14) and the other wire to the adjacent common (T15).
Energy Monitor (EM)
The Energy Monitor contact must be a normally open digital switch. To connect the Energy Monitor contact to the unit,
connect one wire from the contact to EM (T13) and the other wire to the adjacent common (T12).
End of Interval (EMS)
The End of Interval contact for energy monitor sync must be a normally open digital switch. To connect the End of Inter-
val contact to the unit, connect one wire from the contact to EMS (T11) and the other wire to the adjacent common
(T12).
Unit Enable (EN)
The Unit Enable contact must be a normally open (closed only when enabled) digital switch. To connect the Unit
Enable contact to the unit, connect one wire from the contact to EN (T10) and the other wire to the adjacent common
(T9).
Other Connections
Network (LON)
Network wiring must be twisted pair. One network wire must be connected to terminal NETA (T1) and the other network
wire must be connected to terminal NETB (T2). Polarity is not an issue since an FTT-10A network is used for commu-
nications.

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Power (PWR)
Connect one output wire from a 24 VAC power supply to PWR (T39) and the other output wire from the power supply to
the adjacent common terminal (T38).
Ground (GND)
Terminal GND (T40) must be connected to earth ground. Failure to properly ground this equipment will
result in improper operation. Improper grounding may also increase the risk of electrical shock, and may
increase the possibility of interference with radio and TV reception.
SPECIFICATIONS
Electrical Inputs
Resolution: 10 bit
Outside Air Humidity, Inside Air Humidity, Supply Air Humidity: 0-10 Volts DC
Outside Air Temp, Hot Supply Water Temperature, Chilled Supply Water Temperature, Supply Air Temp: Precon
Type III 10K thermistor
Energy Monitor, End of Interval: Normally open, Dry contact, 5 Volts DC Max
Unit Enable: Normally open (closed when active), Dry contact, 5 Volts DC Max
Recommended Sensor Wire
Maximum Length: 500 feet (152 meters)
Recommended LON Bus FTT-10A Network Wire
Speed: 78KBPS
Max Volts: 42.4 Volts DC
Cabling: Maximum node-to-node distance: 1312 feet (400 meters); Maximum total distance: 1640 feet (500 meters)
Power
Requires: 24VAC (20VAC to 28VAC), requires an external Class 2 supply
Consumes: 7.2W with no external loads, maximum limited by the Class 2 supply rating
Mechanical
Dimensions: 5.55” (141mm) high, 6.54” (166 mm) wide, 1.75” deep (44 mm), ABS
Controller Weight: 0.70 pounds (0.32 kilograms)
Shipping Weight: 1.0 pounds (0.46 kilograms)
Processor: 3150 Neuron 10 MHz
Flash: 48 Kilobytes
Cable Type Pairs Details Taco Catalog No.
18AWG 1 Stranded Twisted Shielded Pair, Plenum WIR-018
Cable Type Pairs Details Taco Catalog No.
Level 4 22AWG (0.65mm) 1 Unshielded, Plenum, U.L. Type CMP WIR-022

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SRAM: 8 Kilobytes
Termination: 0.197” (5.0 mm) Pluggable Terminal Blocks, 14-22 AWG
Temperature: 32 °F to 140 °F (0 °C to 60 °C)
Humidity: 0 to 90%, non-condensing
UL Listed for US and Canada, Energy Management Equipment PAZX and PAZX7
FCC Part 15 Class A compliant
TROUBLESHOOTING
Diagnostic LEDs
The controller has 3 LED indicators. These indicators can aid in troubleshooting equipment operation problems. The
following table lists the functions of the controller’s LEDs in the order they appear from left to right on the unit.
LED Indication
Status – Solid green when running and configured by an LCI (networking)
– Flashing green when running and NOT configured by an LCI (stand-alone)
– Solid red when a fault condition exists (control shut down)
– Blinking Red - the controller has a device failure
– Solid Amber - The controller has not received a LCI ping message in over 10 minutes and is part of a network.
Network – Yellow while the controller is transmitting data onto the FTT-10A network
– Green when there is network activity
– Off when there is no network activity
Service – Illuminated when the service pin is depressed or when a controller gets configured by the LCI.