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Cypress WPT-800 Series Installation Manual

Wireless pneumatic thermostat
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Wireless Pneumatic Thermostat- WPT-800 Series
1
Overview
The Cypress Envirosystems Wireless Pneumatic Thermostat (WPT) retrofits an
existing pneumatic thermostat to provide Direct Digital Control (DDC) like zone
control functionality at a fraction of the time and cost without disturbing occupants.
The WPT enables remote monitoring of zone temperature, branch pressure, remote
control of setpoints, and programmable setback or setup of the pneumatic HVAC
systems. It also enables integration with utility Demand Response programs.
The WPT can function either as a standalone system or can be integrated with an
existing Building Management System via BACnet/IP. As a result, the WPT helps a
building owner and tenants save energy, improve comfort, and reduce the
maintenance cost of the legacy pneumatic HVAC systems.
1.1
Components
The WPT- 800 Series kit includes the following components:
WPT
Universal wall bracket
Mounting screws, #6 x 1" self-tapping (x2)
CR123 batteries (x2)
1.2
Prerequisites for Installation
The WPT relies on a wireless network for communication unless operating in a
standalone mode. When using the WPT in a standalone mode, these prerequisites
may be skipped. Before installing the WPT, the wireless network must be set up.
The following tasks must be completed before proceeding to WPT installation:
Installation of WPT Green Box and USB Hub (HUSB)
Installation of WPT Repeaters (RWAL)
Assignment of a network ID to the Green Box
Assignment of a unique node ID to each WPT in the network
Manuals for the WPT Green Box, HUSB, and repeaters can be found at
http://www.cypressenvirosystems.com/wpt-downloads.php.
1.3
Tools Required for Installation
Philips-head screwdriver
1/16" hex Allen wrench
2mm hex Allen wrench
2
WPT Installation
The overall WPT installation procedure includes:
Mounting the WPT on the wall
Configuring the WPT
Calibrating the WPT
WPT Installation Manual
Document No. 910-00005-01 rev 11
Page 1 of 14

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Summary of Contents for Cypress WPT-800 Series

  • Page 1 Document No. 910-00005-01 rev 11 Wireless Pneumatic Thermostat- WPT-800 Series Overview The Cypress Envirosystems Wireless Pneumatic Thermostat (WPT) retrofits an existing pneumatic thermostat to provide Direct Digital Control (DDC) like zone control functionality at a fraction of the time and cost without disturbing occupants.
  • Page 2 WPT Installation Manual Document No. 910-00005-01 rev 11 Mounting the WPT 2.1.1 Remove the Existing Thermostat Remove the external cover of the existing thermostat, if any. Locate and remove the fixing screws and carefully withdraw the unit from the wall along with the attached pneumatic tubes.
  • Page 3 WPT Installation Manual Document No. 910-00005-01 rev 11 Thermostat Lever Handling Precautions • Great care must be exercised while calibrating the WPT. • Handle the thermostat lever as little as possible. • Use extreme caution not to allow the lever to rotate sideways while adjusting the setscrew.
  • Page 4 WPT Installation Manual Document No. 910-00005-01 rev 11 Figure 3. Removing the Universal Wall Bracket Adjust the universal wall bracket against the old thermostat position, such that any two slots on the wall bracket match the existing two holes on the wall. The universal wall bracket is shown in Figure 4.
  • Page 5 WPT Installation Manual Document No. 910-00005-01 rev 11 Connect the branch and main tubes to the air tubes marked B and M on the rear of the WPT, as shown in Figure 6. Connect the pneumatic tube to the M port in case of single pipe WPT.
  • Page 6 WPT Installation Manual Document No. 910-00005-01 rev 11 • Do not short-circuit. • Be sure to wrap each battery when disposing or storing to avoid short circuit. • If leaked liquid gets in the eyes, wash them with clean water and consult a physician immediately.
  • Page 7 WPT Installation Manual Document No. 910-00005-01 rev 11 Figure 8. WPT Menu Structure Page 7 of 14...
  • Page 8 WPT Installation Manual Document No. 910-00005-01 rev 11 2.2.1 Configuring the Network ID and Node ID The WPT must be configured with a valid network ID and node ID for the unit to be operational. The network ID is a single digit number. The node ID is a four digit number.
  • Page 9 WPT Installation Manual Document No. 910-00005-01 rev 11 NOTE: While the node ID is being configured, the corresponding bar of the battery indicator flashes. Figure 11. Configuring Node ID 4321 7. After D4 is configured and confirmed, press the OVR button 3 times to exit from Programming Mode.
  • Page 10 WPT Installation Manual Document No. 910-00005-01 rev 11 2.2.3 Standalone (RF Mode) On/Off The WPT can also be used as a standalone pneumatic thermostat. In this setup, the wireless radio is turned off to preserve battery life. If the radio remains on without a wireless network, the WPT will continually search for a network, which reduces the overall battery life.
  • Page 11: Operation

    WPT Installation Manual Document No. 910-00005-01 rev 11 Figure 12. WPT Calibration 5. Press the OVR key to exit pressure measurement mode. 6. Verify that the pressure changes as per the control action (Direct/Reverse) by increasing and decreasing the setpoint using the ▲ or ▼ key. 7.
  • Page 12 WPT Installation Manual Document No. 910-00005-01 rev 11 Changing the Setpoint Temperature NOTE: Before changing the setpoint, note the current setpoint. This procedure can not be cancelled once begun. The setpoint temperature can be changed using the ▲ or ▼ keys. To change the setpoint temperature: •...
  • Page 13: Troubleshooting

    WPT Installation Manual Document No. 910-00005-01 rev 11 Troubleshooting The WPT is designed with diagnostic functions to detect and diagnose faults. Code Cause Possible Solution Indicates that the WPT is performing a discovery This indication disappears automatically operation and it should not after a few seconds.
  • Page 14: Technical Specification

    95%RH Max, Noncondensing Length: 5.6 in (141 mm ) Dimensions Width: 4.1 in (103.5 mm ) Depth: 2.1 in (53.3 mm ) Cypress Envirosystems 198 Champion Court San Jose, CA 95134, USA info@cypressenvirosystems.com Phone: +1 (408) 943-2800 Page 14 of 14...