Cypress WPT User manual

Wireless Pneumatic Thermostat
(WPT)
Level 1 Certification Training
www.CypressEnvirosystems.com
Doc No: 900-00010-01 Rev 01

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Purpose
Walk through the steps for a successful installation
• Site survey
• Staging
• Installation
• Commissioning
• Post install

Technical Training
Introduction

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Key Components of WPT System
Green Box
(GBC-800-001 )
Contains configuration
tools, remote monitoring &
control application, BACnet
interface, D Interface, and
web services.
ub
(WPT-800-HUSB)
Connects the WPT
wireless network to the
Green Box.
Wall powered repeater
(WPT-800-RWAL)
(WPT-800-RWAL 24V)
Extends the WPT
wireless range.
WPT Node
(WPT-800-TXXX)
(WPT-800-TXXX-DB)
eplaces the existing
pneumatic thermostat.
Available in single/dual pipe
with direct/reverse action.
Green Box or GBC Hub or HUSB epeater or WAL WPT or WPT-DB
Terminology used in this training

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Cypress Wireless Communications
• Uses Cypress Semiconductor wireless
technology – first deployed over six years
ago, with over 25 million nodes in use today.
• Hybrid mesh networking that is fast, easy to
use, highly reliable and self-healing
• Allocate (1) epeater for up to every (15)
WPTs
• Up to 225 WPTs with 14 epeaters and 1
Hub are supported per GBC.
• (14 epeaters + 1 Hub) X 15 WPTs =
225 Total WPTs
• The WPT network allows a total of (6) data
hops back to the Hub
• Think of a data hop as a repeater. If 3
repeaters are required for a WPT then
you have 3 hops.
2.4 G z DSSS radios, +20dBm (100mW) peak output
NOTE: Do not use where cell phones or
WiFi are prohibited (i.e. hospital
operating rooms), or in environments
requiring temperature validation.

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Network Formation / Reformation
• The WPT network automatically form once the components are powered.
The components should be powered up as follows:
- Hub / server
- epeaters
- WPTs
• As they are powered, Hub, epeaters, and WPTs begin communicating
with each other and determining best communication routes.
• Network formation only takes a few seconds in most cases, but it can take
a few minutes for all devices to be “negotiated” into the network.
- For example, if a epeater drops off the network it can take some time for the
network to “re-negotiate” a new path (self healing).
• emember, WPTs only associate themselves with one device (directly
with the Hub, or with a epeater)

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Wireless Communication
WPTs communicate every 15 min
WPT
12:00 PM: Setpoint 70
12:15 PM Setpoint 70
12:15 PM Setpoint 71
12:30 PM Setpoint 71
GBC
12:00 PM: Setpoint 70
12:01 PM user changes setpoint to 71,
Dashboard still shows 70
12:15 PM Dashboard still shows setpoint of 70
12:30 PM Dashboard updates setpoint to 71
Forward Channel Data
Forward Channel Data
Backward Channel Data
Forward Channel Data

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Recommended Installation Workflow
1. Start with site survey
• Walk the site and note the types of thermostats to be retrofitted
• Determine where to place epeaters, Hub and Green Box
• Determine power requirements, number (and type) of epeaters and Green Boxes required
2. Stage components in the office as much as possible
3. Install and configure Green Box and Hub
• The Hub and Green Box should be installed first as the core of the network
• Define unique IDs to assign to each WPT and epeater
4. Install and configure epeaters
• Verify power has been installed
• Install and configure the epeaters to setup WPT wireless network
5. Install WPTs
• Physically remove old thermostats and connect/mount WPTs in their place
• Configure WPTs to communicate with the wireless network
6. Commission system
• Calibrate WPTs
• Verify full system functionality
7. Customer walkthrough
• Train customer
• Setup customer specific items (alarms, schedules, etc.)

Technical Training
Site Surveys

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Purpose
Goals:
• Gather information about project for quoting and install
- Walk through the site
- Verify wireless signal strengths
- Determine locations for GBC(s) and repeaters
- Determine HVAC compatibility, thermostat type and count
- Discuss networking requirements w/ IT
- Determine the wireless network
Deliverables/Outcomes:
• Marked up maps indicating GBC, repeater and thermostat
locations
• Network information for GBC

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Equipment needed for site survey
• Wireless ange Test Kit ( KIT)
• Colored pens and highlighters to mark up map
• Floor plans / maps
• Allen wrench set and screwdriver (to look at various
thermostats)
• Controls drawing if possible

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Pre-survey list
Customer name:
Customer address:
Contact name:
Contact phone number:
Survey dates:
Installation dates:
Site maps received?
Certifications needed (safety, etc.)?
On-site training required?
Parking permits needed?
Accessibility issues for personnel?
Equipment needs to be sent to bonded area?
Pre-visit questions
Schedule
Customer information

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Survey Checklist : Step 1 – VAC system info
Questions/Info request Information
Details of compressed air system
Type of HVAC system (single duct, VAV, hot-deck, cold-
deck, etc.)
Main pressure
Balance point or mid-point on control settings for stat
Spring rate (if they know)
Stat type (manufacturer and model number)
Power and network connection verification
emember
• The WPT thermostats are zone control only
• The thermostat controls the terminal unit in the same exact way as the old Johnson or Honeywell
pneumatic thermostat.
• For terminal units having both heating and cooling controls (i.e fan coil unit, VAV w/ reheat),
consider using the WPT deadband thermostat.
• The WPT thermostat has an standard pneumatic thermostat built inside. Like any pneumatic
thermostat, this is a proportional control device only. The WPT does not have integral reset (PI
control) parameters.

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Thermostat Identification
Use the following guidelines for proper selection of the WPT model
1) Is the Thermostat to be retrofitted a Wall/ oom Thermostat?
- Note: WPT does not replace the emote Bulb thermostats
2) Is it a one-pipe (low air capacity) or two-pipe (high air capacity) thermostat?
3) Is the control action direct or reverse acting?
- Verify existing thermostat operation by adjusting the setpoint dial and noting the operation. This is
particularly important if there is no model number readily available on the thermostat.
- Direct acting: An increase in temperature above setpoint results in an increase in the branch line air
pressure.
Example:
oom temperature 72.0
Setting the setpoint to 55.0 (branch pressure increases)
Setting the setpoint to 85.0 (branch pressure decreases) Normally open heating valve
- everse acting: An increase in temperature above setpoint results in a decrease in the branch line air
pressure.
Example:
oom temperature 72.0
Setting the setpoint to 55.0 (branch pressure decreases)
Setting the setpoint to 85.0 (branch pressure increases) Normally closed heating valve

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Survey Checklist – Step 2: Network info
Questions/Info request
Information
Will it run on a BAS network or standalone?
BACnet client – what are they using
Is it a dedicated network or open LAN (port 80
open?)
Server Location
IP address, Default Gateway, DNS
MAC address
BACnet virtual network number
WPT Network ID

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Survey Checklist : Step 3 – Wireless survey
Questions/Info request
Information
Stat count (and type of each stat)
epeater count (and type of repeaters needed)
Green Box count
How many floors – on maps

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WPT: Survey
• Thermostats
- Information collection – already installed, fixed locations
- Floor plan, site map
• Thermostat count, A, DA, 1-pipe, 2-pipe
• epeaters, Green Box and Hubs
• Green Box, Hub & epeater Locations are flexible (location to be
determined)
• F signal should drive installation locations
1. Signal strength between WPTs and to neighboring WALs and Hub
2. Wireless outing
3. Accessibility & Power

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WPT Wireless Network Planning Overview
• Wireless network planning involves
selecting good locations for the
epeaters and Hub
• Depending on the building, the
wireless range
and the number of epeaters required
may differ
• More than one Green Box
may be used at larger sites. Each
Hub and its associated epeaters
are considered a separate network.
Green Box

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Wireless Performance in Buildings
• Cypress wireless has been installed in many different types of sites
– low-rise office buildings
– high-rise commercial buildings
– industrial plants
• Typical wireless ranges for a single “hop” are:
• epeaters allow for multiple “hops” which extend the communications range
of the system
Line of Sight
300 ft open halls
150 ft in open office floor
100 ft in corridors
Drywall / Paneling 100 ft, through five walls
Brick Walls 60 ft, through three walls
Ceilings 25 ft, through single ceiling

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Factors Reducing Wireless Range
• Wireless range is affected when metal obstacles are in the
line of transmission.
• A solid sheet of metal and some rebar reinforced concrete
present the greatest obstacles.
• Try to note the following objects and avoid them in the line of
transmission:
- Hollow lightweight walls filled with insulating metal foil
- Office equipment and furniture such as book shelves, file cabinets,
metal partitions, computer racks
- Metal reinforced concrete walls, pillars and columns
- Glass walls with metal coating
- Plumbing and electrical risers
- Elevator shafts and stairwells
- Mechanical and electrical equipment rooms
The bigger the metal obstacles in the transmission path, the shorter the wireless range.