Download DEALER_WIRELESS.pps - Walker Technologies

Distributor Introduction
to
Walker Wireless
What is a Walker Wireless system
Walker’s wireless product line is based on Walker’s IOBUS using
EasySTAT products with ZIGBEE radios on board – it is a wireless
IOBUS with some significant advantages over a wired one.
• Since all wireless modules communicate together in a ZIGBEE mesh
network the assignment of modules to a WZ_MicroSAC31 is arbitrary
and not dependant on location or wiring.
• In many cases, for convenience, all wireless control panels
(WZ_MicroSAC31) can be located in a single central location with all
communication to external systems and devices via the wireless
network.
• Alternately, wireless control panels can be located in mechanical
rooms near the units they are controlling. In fact, more that one
autonomous wireless network can be created.
Simple System Architecture
On a computer with Connect-IMS installed, settings are adjusted over the
internet within the main control panel installed in a central mechanical room.
Wireless information is then passed to the Walker Wireless
controllers installed throughout the building.
The Walker Wireless Controllers then command the connected
building infrastructure, such as roof-top units, baseboard
heaters, solar panels or lights.
Wired Connections
to Building Systems
Internet
Wireless Data
Main control
panel
Operator Computer
Walker Wireless
Controllers
Simple System Architecture
CENTRAL CONTROL PANEL
These are the control panels for the 135 zone rooftop system at Lawson
Mall in Saskatoon Canada.
Consists of:
WS1500
Bridge 2004
Static IP Internet Bridge
10 WZ_MicroSAC31
10 WZ_ZCOORD mounted on the outside of the panel box.
135 Walker Wireless WZ_ROOFPTAC’S throughout the facility
Simple System Architecture
Inside the Control Panel:
•
Within the control panel each WZ_MicroSAC31 is connected to the WS15xx or
WS16xx via SmartLAN in a standard Walker network.
•
The WZ_MicroSAC31 is then connected to a ZCOORD (Wireless coordinator)
mounted on the outside of the panel box so that it is able to communicate
with the wireless network. Connected to the WZ_MicroSAC31 by conventional
wired IOBUS, the ZCOORD maps wireless packets to and from the
WZ_MicroSAC31.
•
As with wired IOBUS, each WZ_MicroSAC31 can have 20 wireless controllers
mapped into its database as addresses 3 through 22 (ZCOORD is adr. 23).
To Wireless Network
Wired IOBUS
WZ_MicoSAC31
WZ_ZCOORD
Architecture in the Building Space
Each wireless controller communicates with its assigned WZ_MicroSAC31 via the ZIGBEE
wireless network. The radio in each controller “joins” the wireless network
and also routes packets to and from other radios in the network.
The Zigbee Mesh Network
is a Self-Healing dynamic
wireless protocol which
finds and maintains a path
(route) to the destination.
If the route becomes
obstructed, an alternate
route is quickly
discovered.
Controllers decode only
packets destined for
themselves.
Time information is
transmitted globally to
all controllers.
Strength and Reliability
In a Walker Wireless system each controller acts as a transmitter and router of
information.
Main Control Box
Strength and Reliability
Self-Healing - If a controller looses communication, or there is an
obstruction, the mesh network will automatically find a new route for the
data.
Main Control Box
The Zigbee Radios
The standard radios installed in all Walker Wireless products
operate at 2.4GHz and allow for up to 30 meters
(unobstructed) between devices. In testing, the radios
communicate at 100% signal within 20 meters between radios
on the same floor and 6 meters (2 floors) vertically in a
concrete/steel building.
Greater Distances:
High Power Radios. If needed, High Power radios can
replace the standard radios within Walker Wireless controllers
at a minimal cost. These may be an option in situations where
there is strong interference or large distances between
controllers.
Repeaters. Where there is a great distance between
buildings, and there are no controllers nearby, low cost
repeaters can be added to bridge communications.
Motion Detector
The built in motion detector in each Walker Wireless controller
allows the system to turn down the Setpoint when no motion is
detected in the zone. The motion detector has a range of 10
meters at a viewing angle of 150 degrees.
In situations where motion does not always mean occupancy
(zones with animals or street facing windows) the motion
sensitivity can be adjusted or disabled.
Wireless Advantages
Network architecture and wireless communication removes the
need for distributing control system physically throughout the
facility. All control panels can be mounted in a single location.
Stand alone unitary programming in each device minimizes or
removes GCL programming time.
All unitary controllers operate stand alone in case of loss of wireless
communications
Full duplex communication used between SAC and remote units
guarantees data gets passed with feedback confirmation where
required.
Each external controller passes values, status and runtime
information back to its host MicroSAC on a regular basis – usually
every 30 seconds.
The host MicroSAC sends supervisory data at roughly the same
rate.
Where required, packet communication frequency can be increased
by adjustment in the wireless controller and GCL.
Wireless Marketing Advantages
Degree day calculations for any area quickly show your Customer
expected savings that can be achieved with an aggressive turn
down strategy.
Accurate measurement and control ensure your ability to maintain
any setpoint at minimum cost and impress new Customers with a
more come comfortable environment.
Real time usage calculations allow you to show your Customers his
savings after a few months and in a concise manner.
Product offering is unique in many new and untapped marketplaces
where DDC was previously too expensive.
Malls, Smaller Hotels and Motels, Aircraft hangers, private homes
and small offices are among several new target audiences.
Installation is hassle free – just involves changing the thermostats
in many cases. Does not need to interfere with current occupants.
Strategies for Hydronic buildings ensure maximum tenant comfort
on all floors while saving energy.
How Zigbee Wireless Works
Uses a IEEE 802.15.4 wireless network with a ZIGBEE layer on
top which includes Mesh Networking, Security, and Applications
control.
Allows up to 300 wireless devices to be connected per ZIGBEE
network. If more than 300 wireless controllers are needed, then 2
or more networks can co-exist, each with up to 300 devices.
Full network and controller diagnostics lets you see the status of
all wireless communication, and identify and correct any
communication issues.
Low cost repeaters or higher powered radios can easily be used to
bridge any wireless communication gaps.
Network routing and other information is stored in EEPROM so the
network recovers instantly after a power failure.
Communication Diagnostics
Figure shows last
transmit times in minutes
in left hand column.
Note that LVS_20 shows
7 minutes since last
transmission indicating a
poor link. This high
powered radio link is
mounted on the outside
of a building and is
currently under 10 feet of
snow. The distance to the
next link is about 500
feet.
LVS20
This link connects sporadically every 10 or 15 minutes, but still results in correct
operation. Rather than digging it out or relocating, Walker is using the poor link to
tune the operation of controls when wireless commands are sporadic.
LVS15
This controller is disconnected and shows 240 minutes (at least) since last
transmission. Communication alarms can be generated based on time since last
transmission
Wireless (WZ) Product Line-up
product
in
out
Switch
Opt.
Application
WZ_LVSTAT250
TKM
1D
110-240
VAC 10A
KMHC
Baseboard
Controller
WZ_STAT25
TKM
1D
24VAC 1A
30VDC 1A
KMHC
24V
Controller
WZ_Controller2X5
2U
2U 3D
24VAC 1A
30VDC 1A
DKMHC
Stages of
H/C
WZ_Controller3x4
TKM
4D
24VAC 1A
30VDC 1A
DKMHC
Fan Heat
Cool
WZ_Controller5X12
TKM2U
4U 8D
24VAC 1A
30VDC 1A
DKMHC
Dual Loop
WZ_WRT_B
TKM
KM
Battery
Roomstat
WZ_WRT_E
TKM
KM
Energy
Harvesting
LEGEND – see next page
All Easy-Stat strategies are available – Custom if required
Wireless (WZ) Product Line-up
product
in
out
Switch
Opt.
Application
WZ_ZCOORD
2U
2U3D
24VAC 1A
30VDC 1A
WZ_ROOMPTAC
TKM
4D
24VAC 1A
30VDC 1A
KMLHC
Room PTAC
Controller
WZ_ROOFPTAC
TKM
4D
24VAC 1A
30VDC 1A
KMLHC
Roof PTAC
Controller
WZ_RTU
TKM
2U 8D
24VAC 1A
30VDC 1A
KMHC
Rooftop
Controller
WZ_VAV
TKM
4D
24VAC 1A
30VDC 1A
KMLHC
VAV
Controller
LEGEND
T
K
M
D
U
Temperature
Knob
Motion
Digital
Universal
All Easy-Stat strategies are available – Custom if required
ZIGBEE
Coordinator
H
C
L
Heat
Cool
LCD
EasySTAT Algorithms can be
converted for Wireless use
A large number of strategies have been developed for the EasySTAT product line over the last several years. They are posted on
our Web site and can be downloaded to the controllers with an
inexpensive dongle.
These applications are unitary, but can be modified easily with
Walker’s Easy-STAT tool and with many adjustable features.
All strategies can be converted for use with the Wireless product line
if requested.
Cindy Lee at Walker is our applications expert for EasySTAT and WZ
products – please contact her for any discussion.
Heating/Cooling
Radiation Control
VVT strategies
Lighting Control
Duty-cycle
Fan Coil Control
Multiple zones
Rooftop control
Pressure
Heat Pump
VAV control
AHU / Economizer
Humidity
Typical GCL required per zone
At Lawson Mall (135 WZ_ROOFPTAC’S), a number of global
commands are calculated in the main panel (in this case PA101).
These are transmitted regularly to all panels. Typically, the GCL
required per zone is just to map those global values.
Wireless Demo Kit
The Wireless Demo contains one of each wireless controller complete
with setup guides, marketing documentation and 4 hours over the
phone or in site training.
The databases for several installed sites are also available along with
Demo access to the Mt. Washington site mock-up at Walker’s shop.
The demo controllers are set up for “plug and play”.
WZ_MicroSAC31
WZ_ZCOORD
WZ_LVS250
WZ_STAT25
WZ_ROOFPTAC
WZ_ROOMPTAC
W_RTU
CONNECT_IMS
Wireless Installations
Mount Washington Community, Courtenay BC ---6
chalets,
Mall at Lawson Heights, Saskatoon
75 WZ_LVSTAT250
City of Moreland Hills Maintenance Garage, Ohio
18 WZ_RTU’ and CO2
Verizon Wireless remote facility, Portland Oregon
Mix of wireless
Home on Quadra Island BC
10 WZ_LVSTAT250
Westerly Hotel, Courtenay BC
8 Rooftops in main building,
200 suites to follow.
RCMP Detachment, Courtenay BC.
12 WZRTU.
Air Canada Hanger, Vancouver BC
20-30 zones mixed wireless
controllers
135 WZ_ROOFPTAC
Mount Washington Community
Wireless Installation.
On Mt. Washington in Courtenay BC, many Chalets have
installed Walker Wireless. In our first “Community Network”..
Building owners in this environment are seeing up to 70%
energy savings.
Deep snow, distances between chalets and high interference
put wireless communications to the test with excellent
results.
Mall at Lawson Heights
Saskatoon, Canada
The Mall at Lawson Heights has 135 rooftop units that had poor
control , no central control system, and no setback strategy.
The estimated savings – (up to 50%) are expected to result in a
payback of less that one year.
Westerly Hotel and Convention
Center, Courtenay B.C.
Best Western hotel and Convention Center, Courtenay is now
appreciating more comfort and reduced costs with a Walker
Wireless system recently installed and is looking forward to
further expansions being installed later this year.
Installation is proceeding, working around a busy operational
schedule for the Hotel with no “down time” allowed.
Courtenay RCMP Detachment,
Courtenay B.C.
The Courtenay RCMP Detachment will begin to appreciate
maximum energy efficiency with their Walker Wireless/Heat
Pump system currently being installed.
In this system, maintenance mangers like the idea that if
they were to relocate, the controls are easily disconnected
and transferred to a new location.
Air Canada hanger
Vancouver B.C.
Air Canada will save energy with Walker controls in their hanger at
YVR. Existing, stand-alone Easy-STAT controllers are being replaced
by their wireless equivalents.
In March, Walker representatives went to the hanger to determine
possible interferences within the structure. Tests confirmed radio
communication will be strong through metal firewalls and several
concrete floors without the use of repeaters or high powered radios.
Why Choose Walker Wireless
Saving up to 40% or more on your heating/cooling bills
gives a short return on investment while reducing your
carbon footprint.
Your heating or cooling is automatically adjusted based on
room occupancy.
Leading edge Wireless technology allows for
non-invasive set up and dramatic cost savings on the
initial installation.
Individualized software gives you complete control of your
building from anywhere in the world, with continuous and
accurate tracking of heating expenses.
www.Walkersys.com/wirelessystems.html