WTL-GBC-00 Johnson Controls Control Server

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The WTL Survey Kit can survey larger, multi-story sites for compatibility with the WTL Thermostat. Use the WTL Survey Kit to perform a range test to determine the strength of the wireless connection between the WTL Thermostat and the WTL Gateways at the location where you plan to install the devices. If the signal strength is not sufficient at the WTL Thermostat installation locations, you may need to adjust the gateway and control server installation location or potentially add additional gateways to ensure sufficient wireless signal coverage.

The WTL (Wireless Pneumatic Thermostat LoRa Series) Gateway and the WTL Control Server work together as a pair to form the hub of a WTL system. WTL Thermostats connect wirelessly to the gateway, and the gateway manages the wireless communications traffic through LoRaWAN®. Each gateway creates its own LoRa wireless network. The control server is the application’s server, which provides the web interface, the database for storing and trending historical data, the ability to set occupied and unoccupied schedules, and email and text notifications for users. One control server pairs with one gateway. You can map up to 125 thermostats to the control server. You must use the gateway and control server together to connect to a BAS. If you do not want to connect to a BAS, you can use the control server to set schedules.

The LoRaWAN is a networking protocol designed to wirelessly connect battery operated devices to the internet. The gateway converts LoRa RF packets into IP packets and IP packets into RF packets.

Parts included Gateway:

• One WTL Gateway (blue box)
• One power supply, requires 120 VAC outlet
• One 900 MHz antenna
• One Ethernet cable

Control Server:

• One WTL Control Server (gray box)
• One wall mounting bracket
• One power supply with wall mounting bracket, requires 120 VAC outlet

Prerequisites

• The gateway and control server each require a 120 VAC outlet for power.
• The control server can communicate with a building automation system (BAS) through BACnet®/IP. This communication requires an Ethernet connection between the BAS and control server, ideally with a dedicated static IP for the control server.

Location considerations

The following objects can affect the wireless range. Avoid these objects in the line of transmission.

• Solid metal sheets
• Rebar-reinforced concrete
• Metal-reinforced concrete walls, pillars, and columns
• Hollow lightweight walls filled with insulating metal foil
• Office equipment and furniture such as book shelves, file cabinets, metal partitions, and computer racks
• Glass walls with metal coating
• Plumbing and electrical risers
• Elevator shafts and stairwells
• Mechanical and electrical equipment rooms