™
WebStat
WITH WEB-BASED BUILDING MANAGEMENT
Temperature Control System
ENGINEERING GUIDE SPEC
1. GENERAL
1.1 SUMMARY
A. Furnish all labor, materials, equipment, and service
necessary for a complete and operating
Temperature Control System (TCS) with Webbased Building Management, utilizing controls and
components as shown on the drawings and as
described herein. Drawings are diagrammatic only.
B. All labor, material, equipment and software not
specifically referred to herein or on the plans, that is
required to meet the functional intent of this
specification, shall be provided without additional
cost to the Owner.
1.2 SYSTEM DESCRIPTION
A. The entire Temperature Control System (TCS) shall
be comprised of a network of commercial
programmable thermostats communicating via
LonTalk
Controller. The Web-based Controller shall connect
to the owner's local or wide area network,
depending on configuration. Access to the system,
either locally in the building, or remotely from a
central site or sites, shall be accomplished through
Microsoft Internet Explorer
local area network.
®
communication protocol to a Web-based
®
, via the Internet and/or
1.3 GENERAL
A. The WebStat Controller (WSC) shall communicate
over the LonWorks
management control of the T7350 thermostats and
Alarming, Trending, and Scheduling applications
through a web browser. The WSC shall serve as
network time master to synchronize the time and
date in thermostats linked to it or with the internet
time servers. The WSC shall provide System
Administration functions such as: configuring
network settings, site information settings, and
device discovery for new thermostat installations.
®
network to perform building
1.4 SUBMITTAL
A. Eight copies of shop drawings of the components
and devices for the entire control system shall be
submitted and shall consist of a complete list of
equipment and materials, including manufacturers’
catalog data sheets and installation instructions for
all controllers, valves, dampers, sensors, routers,
etc. Shop drawings shall also contain complete
wiring and schematic diagrams, software
descriptions, calculations, and any other details
required to demonstrate that the system has been
coordinated and will properly function as a system.
Terminal identification for all control wiring shall be
shown on the shop drawings. A complete written
Sequence of Operation shall also be included with
the submittal package.
B. The Web-based Building Manager as provided in
this Division shall be based on the Honeywell
WebStat
Framework
approved in writing by the Consulting Engineer and
be submitted for approval ten (10) days prior to the
date of the bid submittal. Systems not developed on
the Niagara Framework platform are unacceptable.
™
System incorporating the Niagara
™
. Equivalent products must be
B. Upon completion of the work, provide a complete
set of 'as-built' drawings and application software
on compact disk.
1.5 DIVISION OF WORK
A. The TCS contractor shall be responsible for all
thermostats, controllers, control devices, control
panels, controller programming, thermostat input/
output and controller network wiring.
63-4371
WEBSTAT™ TEMPERATURE CONTROL SYSTEM
B. The TCS contractor shall be responsible for the
WSC, programming of the WSC, development of all
graphical screens, Web browser pages, setup of
schedules, logs and alarms, LonWorks network
management and connection of the WSC to the
local or wide area network.
1.6 RELATED WORK SPECIFIED ELSEWHERE
A. Division 16, Electrical:
1. Providing motor starters and disconnect
switches (unless otherwise noted).
2. Power wiring and conduit (unless otherwise
noted).
3. Provision, installation and wiring of smoke
detectors (unless otherwise noted).
4. Other equipment and wiring as specified in
Division 16.
1.7 AGENCY AND CODE APPROVALS
A. All products of the TCS shall be provided with the
following agency approvals. Verification that the
approvals exist for all submitted products shall be
provided with the submittal package. Systems or
products not currently offering the following
approvals are not acceptable.
1. UL-916; Energy Management Systems.
2. C-UL listed to Canadian Standards Association
C22.2 No. 205-M1983 "Signal Equipment".
3. CE.
4. FCC, Part 15, Subpart J, Class A Computing
Devices.
1.8 SOFTWARE LICENSE AGREEMENT
A. The Owner shall be provided with any and all
required IDs and passwords for access to any
component or software program.
1.9 DELIVERY, STORAGE AND HANDLING
A. Provide factory-shipping cartons for each piece of
equipment and control device. Maintain cartons
through shipping, storage, and handling as required
to prevent equipment damage. Store equipment
and materials inside and protected from weather.
1.10 JOB CONDITIONS
A. Cooperation with Other Trades: Coordinate the
Work of this section with that of other sections to
ensure that the Work will be carried out in an
orderly fashion. It shall be this Contractor's
responsibility to check the Contract Documents for
possible conflicts between his Work and that of
other crafts in equipment location, pipe, duct and
conduit runs, electrical outlets and fixtures, air
diffusers, and structural and architectural features.
2. MATERIALS
2.1 ACCEPTABLE MANUFACTURERS
A. Basis-of-Design: Honeywell.
B. Products of other manufacturers will be considered
for acceptance provided they equal or exceed the
material requirements and functional qualities of the
specified product. Requests for Architect/
Engineer's approval must be accompanied by the
"Substitution Request Form" and complete
technical data for evaluation. All materials for
evaluation must be received by the Project
Manager and Specification Department at least 10
days prior to bid due date. Additional approved
manufacturers will be issued by Addendum.
2.2 WEBSTAT CONTROLLER (WSC)
A. The WSC shall provide the interface between the
LAN or WAN and the Networked Programmable
Thermostats and provide global supervisory control
functions over the control devices connected to the
WSC. It shall be capable of executing application
control programs to provide:
1. Calendar functions.
2. Scheduling.
3. Trending.
4. Alarm monitoring and routing.
5. Time synchronization.
B. The WebStat Controller must provide the following
hardware features as a minimum:
1. Two Ethernet Ports - 10/100 Mbps.
2. One RS-232 port.
3. One LonWorks Interface Port - 78KB FTT-10A.
4. On-Board Battery Backup.
5. 128 MB RAM, 32 MB Flash memory for
database backup.
6. The WSC must be capable of operation over a
temperature range of 32 to 122° F (0 to 50° C).
7. The WSC must be capable of operation over a
humidity range of 5 to 95% RH, noncondensing.
63-4371 2
WEBSTAT™ TEMPERATURE CONTROL SYSTEM
C. The WSC shall support Microsoft Internet Explorer
Web browser access via the Intranet/Internet. It
shall support a minimum of three simultaneous
users.
D. The WSC shall support 12 Networked
Programmable Thermostats (NPT).
E. Floor Plans:
1. The WSC shall support 5 graphical illustrations
of the building’s layout coupled with the
Networked Programmable Thermostats (NPT)
depicting their location within the building.
2. The WSC shall support multiple NPT in a single
floor plan.
3. The WSC shall provide user the ability to:
a. Create New Floor Plans.
b. Modify Existing Floor Plans.
c. Change the Images.
d. Change Thermostats.
e. View Different Floor Plans.
F. Schedules:
1. The WSC shall provide 5 schedules that are
weekly calendars for occupancy mode changes
and holiday information.
2. The WSC shall provide schedules for 3
occupancy modes:
a. Occupied - A period of time when the
controlled environment is considered to be
occupied.
b. Unoccupied - A period of time when the
controlled environment is considered to be
unoccupied.
c. Standby - A period during the normal
occupied period when the space may not be
occupied.
3. The WSC shall provide user the ability to:
a. View Schedules.
b. Add/Modify Schedules.
c. Define Weekly Schedules.
d. Define Special Events.
e. Assign Thermostats.
f. Delete Schedules.
G. Alarm Notification:
1. The WSC shall provide 25 configurable alarms,
defining limits and priority, for the Networked
Programmable Thermostats.
2. The WSC shall provide alarm filtering based on
occurrence, acknowledgment status, and
priority.
3. The WSC shall provide user the ability to:
a. View Alarms.
b. Add/Modify Alarms.
c. Delete Alarm Configuration.
d. Acknowledge Alarms.
e. Delete Alarms.
4. The WSC shall be configured to send e-mail
alarm messages to a SMTP e-mail server within
the LAN/WAN to which it is connected.
H. Trends:
1. The WSC shall provide 5 configurable trends,
depicting the values of selected points over a
period of time ranging from a day to a year in a
graphical format.
2. The WSC shall provide trends plotting two
points which are read by the same or two
different thermostats.
3. The WSC shall provide user the ability to:
a. View Trends.
b. Add/Modify Trends.
c. Delete Trends.
I. Users:
1. The WSC shall provide for 3 types of users:
a. Contractor - Super user of the system and
can perform all tasks.
b. Facility Manager - Building Engineer user of
system and can perform tasks monitoring
and maintaining HVAC equipment.
c. Tenant - User of system with limited access
and only perform limited tasks.
2. The WSC shall provide the ability to add or
remove privileges from any of the user types
above.
2.3 NETWORKED PROGRAMMABLE THERMOSTATS (NPT)
A. Networked Programmable Thermostats shall
consist of a communicating commercial
programmable thermostat conforming to LonMark®
Space Comfort Profile and subbase to control
commercial single zone HVAC equipment.
B. The NPT thermostat shall have a keypad for setting
system parameters, a corresponding LCD display
and a flip-down keypad cover. The thermostat shall
be provided to match its intended application for
control of Furnaces, air conditioning, heat pumps,
modulating (direct or reverse action) heat and/or
cooling etc. Five methods of dehumidification
(minimum ON time, reheat, reset temp setpoint, hot
gas bypass, and simple dehumidification),
occupancy scheduling, time of day bypass,
Adaptive Intelligent Recovery, and system mode
selection shall be supported by the thermostat.
C. The NPT subbase shall include LonTalk
terminals and a jack for temporary connections to a
personal computer. A service pin push button shall
be provided to locate the device on the LonWorks
network.
Bus
3 63-4371
WEBSTAT™ TEMPERATURE CONTROL SYSTEM
D. The NPT shall be capable of being configured by
the WSC to share data with other network devices.
Shared data shall include:
1. Day-of-week and time-of-day.
2. System mode (Heat, Cool, Auto, Off, EM Heat).
3. Current fan setting.
4. Space temperature.
5. Current setpoint.
6. Space Relative Humidity.
7. Occupied /Unoccupied schedule commands.
8. Current occupancy status.
9. Relay status (heat/cool stages and fan).
10. Alarm status.
11. Alarm log.
E. Configurable features shall include:
1. Day-of-week and time-of-day.
2. System mode (Heat, Cool, Auto, Off, EM Heat).
3. Proportional plus Integral plus Derivative (PID)
temperature control.
4. Current fan setting.
5. Space temperature.
6. Multiple remote space sensors.
7. Current setpoint.
8. Space Relative Humidity.
9. Discharge air sensor.
10. Schedule.
11. Outdoor air sensor.
12. Outdoor ambient lockout.
13. Occupancy sensor.
14. Occupancy bypass.
15. Continuous unoccupied.
16. Temporary setpoint changes.
17. Temporary override.
2.4 NETWORKS
A. The Local Area Network (LAN) shall be a 100
Megabits/sec Ethernet network supporting Java
XML, HTTP, and SOAP for maximum flexibility.
B. Local area network minimum physical and media
access requirements:
1. Ethernet; IEEE standard 802.3
2. Cable; 100 Base-T, UTP-8 wire, category 5
3. Minimum throughput; 100 Mbps.
2.5 NETWORK ACCESS
A. Remote Access.
1. For Local Area Network installations, provide
access to the LAN from a remote location, via
the Internet. The Owner shall provide a
connection to the Internet to enable this access
via high speed cable modem, asynchronous
digital subscriber line (ADSL) modem, ISDN
line, T1 Line or via the customer's Intranet to a
corporate server providing access to an Internet
Service Provider (ISP). Customer agrees to pay
monthly access charges for connection and
ISP.
2.6 WEB BROWSER GRAPHICAL USER INTERFACE
A. The system shall be capable of supporting a
minimum of three simultaneous clients using
Internet Explorer™. Systems requiring additional
software (to enable a standard Web browser) to be
resident on the client machine, or manufacturespecific browsers shall not be acceptable.
B. The Web browser software shall run on any
operating system and system configuration that is
supported by the Web browser. Systems that
require specific machine requirements in terms of
processor speed, memory, etc., in order to allow the
Web browser to function with the WSC, shall not be
acceptable.
C. The Web browser client shall support at a
minimum, the following functions:
1. User log-on identification and password shall be
required. If an unauthorized user attempts
access, a blank web page shall be displayed.
Security using Java authentication and
encryption techniques to prevent unauthorized
access shall be implemented.
2. HTML programming shall not be required to
display system graphics or data on a Web page.
3. Storage of the graphical screens shall be in the
WebStat Controller (WSC), without requiring
®
,
any graphics to be stored on the client machine.
Systems that require graphics storage on each
client are not acceptable.
4. Users shall have administrator-defined access
privileges. Depending on the access privileges
assigned, the user shall be able to perform the
following:
a. Modify schedules, calendars, and set points
in a graphical manner.
1. Schedule times will be adjusted using a
graphical slider, without requiring any
keyboard entry from the operator.
2. Holidays shall be set by using a
graphical calendar, without requiring any
keyboard entry from the operator.
c. View trends.
d. View and acknowledge alarms.
63-4371 4
WEBSTAT™ TEMPERATURE CONTROL SYSTEM
2.7 OTHER CONTROL SYSTEM HARDWARE
A. Space Temperature Wall Module. Wall Module shall
be Honeywell or equivalent.
1. Wall module shall have a 20K Ohm NTC
thermistor temperature sensor with operating
range of 45 to 99° F (7.2 to 37.2° C) under a
locking cover/enclosure with UL 916 listing
designed for mounting on a standard electrical
switch box.
2. Space temperature sensors shall be accurate to
±1° F (±.5° C).
B. Duct Mount, Pipe Mount and Outside Air
Temperature Sensors: Temperature sensors with
an accuracy of ±0.3° F (±0.2° C). Temperature
sensors shall be Honeywell or equivalent.
1. Outside air sensors shall include an integral sun
shield.
2. Duct sensors shall have sensor approximately
in center of the duct, and shall have selectable
lengths of 6, 12, and 18 in. (152, 305, and 457
mm).
3. Multipoint averaging element sensors shall be
provided where specified and shall have a
minimum of one foot of sensor length for each
square foot of duct area (provide multiple
sensors if necessary).
4. Pipe mount sensors shall have copper, or
stainless steel separable wells.
3. EXECUTION
3.1 INSTALLATION
3.2 WIRING
A. All low voltage electrical control wiring to the control
panels, WSC, computers and network components
shall be the responsibility of this contractor.
B. The electrical contractor (Div. 16) shall furnish all
power wiring to control panels, electrical starters
and motors.
C. All wiring shall be in accordance with the Project
Electrical Specifications (Div. 16), the National
Electrical Code and any applicable local codes. All
TCS wiring shall be installed in the conduit types
specified in the Project Electrical Specifications
(Div. 16) unless otherwise allowed by the National
Electrical Code or applicable local codes. Where
TCS plenum rated cable wiring is allowed it shall be
run parallel to or at right angles to the structure,
properly supported and installed in a neat and
workmanlike manner.
3.3 WARRANTY
A. Equipment, materials and workmanship
incorporated into the work shall be warranted for a
period of one year from the time of system
acceptance.
B. Within this period, upon notice by the Owner, any
defects in the work provided under this section due
to faulty materials, methods of installation or
workmanship shall be promptly (within 48 hours
after receipt of notice) repaired or replaced by this
contractor at no expense to the Owner.
A. Install system and materials in accordance with
manufacturer's instructions, and as detailed on the
project drawing set.
B. Drawings of the TCS are diagrammatic only and
any apparatus not shown, but required to make the
system operative to the complete satisfaction of the
Architect shall be furnished and installed without
additional cost.
1. Low voltage electrical connections to control
equipment shown specified or shown on the
control diagrams shall be furnished and
installed by this contractor in accordance with
these specifications.
2. Equipment furnished by the HVAC Contractor
that is normally wired before installation shall be
furnished completely wired. Control wiring
normally performed in the field will be furnished
and installed by this contractor.
3.4 WARRANTY ACCESS
A. The Owner shall grant to this contractor,
reasonable access to the TCS during the warranty
period.
3.5 ACCEPTANCE TESTING
A. Upon completion of the installation, this contractor
shall load all system software and start-up the
system. This contractor shall perform all necessary
calibration, testing and de-bugging and perform all
required operational checks to insure that the
system is functioning in full accordance with these
specifications.
B. System Acceptance: Satisfactory completion is
when this contractor has performed successfully all
the required testing to show performance
compliance with the requirements of the Contract
Documents to the satisfaction of the Owner's
Representative. System acceptance shall be
contingent upon completion and review of all
corrected deficiencies.
5 63-4371
WEBSTAT™ TEMPERATURE CONTROL SYSTEM
3.6 OPERATOR INSTRUCTION, TRAINING
A. This contractor shall provide 4 hours of instruction
to the owner's designated personnel on the
operation of the TCS and describe its intended use
with respect to the programmed functions specified.
Operator orientation of the systems shall include,
but not be limited to; the overall operation program,
equipment functions, commands, systems
generation, advisories, and appropriate operator
intervention required in responding to the System's
operation.
4. SEQUENCES OF OPERATION
4.1 SUMMARY
A. The heating and cooling setpoints shall be
individually adjustable for both the occupied,
unoccupied, and standby periods. The thermostat
shall have a minimum deadband of 2° F (1° C) (no
mechanical heating or cooling shall operate within
this deadband). Space temperature deviation
above the cooling setpoint or below the heating
setpoint shall generate a demand signal to control
the system as follows:
1. Heating: The thermostat shall control the
heating output based on the demand signal
communicated from the thermostat program,
taking into account both space temperature
deviation (proportional gain), the duration of
that temperature deviation (integral), and the
rate of change of the deviation (derivative gain).
The thermostat shall energize heating
equipment when space temperature falls below
heating setpoint.
2. Cooling: The thermostat shall control the
cooling output based on the demand signal
communicated from the thermostat program,
taking into account both space temperature
deviation (proportional gain), the duration of
that temperature deviation (integral), and the
rate of change of the deviation (derivative gain).
The thermostat shall energize cooling
equipment when space temperature exceeds
cooling setpoint.
a. (Optional Remote Equipment) A solid state
enthalpy changeover control shall
determine the capability of the outdoor air to
provide free cooling (optional). The system
shall operate as follows:
1. Free Cooling available from Outdoor Air:
On a call for cooling, the system shall
enable the economizer to provide free
cooling. If this does not meet the space
demand, the system shall enable the
call for mechanical cooling to satisfy the
programmed setpoint.
2. Free Cooling not available from Outdoor
Air: On a call for cooling, the system
shall hold the economizer to minimum
position and cooling shall be energized
to satisfy the programmed setpoint.
3. Economizer Interface: The auxiliary relay
contacts of the subbase shall be connected to
the economizer's minimum position
potentiometer or power circuit.
a. Occupied Period: The auxiliary relay contact
will close, allowing the economizer to
operate normally and be available for free
cooling if outdoor conditions permit.
b. Unoccupied Period: The auxiliary relay
contact will open, defeating the economizer
minimum position.
4. Dehumidification: The thermostat shall provide
five methods for dehumidification:
a. Minimum ON: Increasing the compressor
minimum on time.
b. Reset: Lowering the cooling setpoint.
c. Reheat: Cooling and simultaneous reheat.
d. Auxiliary output: To external dehumidifier.
e. Hot gas bypass: Auxiliary output operates
depending on humidity level and number of
active cooling stages.
5. Heating Setback and Cooling Setup: Initiation of
heating setback or cooling setup for each of 7
or 365 days shall be provided by a programmed
time schedule down loaded into the thermostat
from the WebStat Controller. When all or a
portion of the programmed schedule is
unavailable, the thermostat shall control to the
factory default program.
6. Setpoint Recovery from Unoccupied to
Occupied: The thermostat shall incorporate a
ramping feature that gradually changes the
space setpoints. During recovery operation, the
setpoint changes at a rate in degrees per hour
depending on the outdoor air temperature. If
there is no outdoor air temperature sensor
available, the minimum ramp rate is used. The
WebStat Controller shall provide the ability to
individually adjust ramp rates for heating and
cooling.
7. Fan Operation: Fan operation shall be
selectable as follows:
a. On: Fan operates continuously in occupied
mode, and during standby modes, and
during a call for heat or cool.
b. Auto: Fan is energized with calls for heating
and cooling.
8. Minimum Stage Operation Time:
a. Minimum On: Heat - 1 minute; Cool - 3
minutes.
b. Minimum Off: Cool and Heat Pump - 1
minute.
63-4371 6
WEBSTAT™ TEMPERATURE CONTROL SYSTEM
9. Power Interruption:
a. On loss of power, the thermostat shall
maintain programmed times and
temperatures for 10 years.
b. On loss of power, clock and day information
shall be maintained for a minimum of 48
hours.
END OF SECTION
Java® is a registered trademark of Sun Microsystems Inc.
®
ONTALK
L
Microsoft Internet Explorer® is a registered trademark of Microsoft Corp.
Niagara Framework™ is a trademark of Tridium Corp.
WebStat™ is a trademark of Honeywell International Inc.
, LONWORKS®, LONMARK® are registered trademarks of Echelon Corp.
10. Overrides:
a. The Temporary Occupied Override can be
used when the thermostat is in Unoccupied
or Standby modes. It shall switch to the
Occupied mode for an installer-configured
number of hours. The default shall be 3
hours.
b. The Temporary Unoccupied Override shall
fix the schedule to operate in Unoccupied
mode for a number of days (between 1 and
99) without changing programming saved in
memory.
c. Pressing "Run Schedule" shall cancel
override and return to the program.
7 63-4371
WEBSTAT™ TEMPERATURE CONTROL SYSTEM
Automation and Control Solutions
Honeywell International Inc. Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Toronto, Ontario M1V 4Z9
customer.honeywell.com
® U.S. Registered Trademark
© 2007 Honeywell International Inc.
63-4371 J.I. 04-07
Loading...