Mircom Group of Companies 9246AE80D86 User Manual
OpenBAS-HV-WLSTH
Wired and Wireless Thermostat Transmitter
Installation Manual
LT-6131 Rev. 1
June 2017
Table of Contents
1.0 Introduction 6
1.1 OpenBAS-HV-WLSTH Wired and Wireless Thermostat Transmitter ............................ 6
1.2 Features ......................................................................................................................... 6
2.0 Overview 7
2.1 Components ................................................................................................................... 7
2.1.1 Controllers ...................................................................................................................... 7
2.1.2 Compatible Modules ...................................................................................................... 8
3.0 Installation 9
3.1 Parts of the Controller .................................................................................................... 9
3.2 Controller Board Connections ........................................................................................ 10
3.3 Batteries (OpenBAS-HV-WLSTH only) .......................................................................... 10
3.4 Mounting Plate Dimensions ........................................................................................... 12
3.5 Mounting ........................................................................................................................ 12
4.0 Field Wiring 13
4.1 To Wire the Terminals .................................................................................................... 13
4.1.1 Required Tools ............................................................................................................... 13
4.2 Power Supply Connection .............................................................................................. 14
4.3 Wireless Communication (OpenBAS-HV-WLSTH only) ................................................ 15
4.4 RS-485 ........................................................................................................................... 16
4.4.1 RS-485 wiring requirements .......................................................................................... 16
4.5 Buttons ........................................................................................................................... 17
5.0 Specifications 18
6.0 Master Warranty and Warning Information 19
7.0 Special Notices 24
7.1 FCC Notice .................................................................................................................... 24
7.2 RF Exposure Warning .................................................................................................... 24
7.3 RF Exposure Information ............................................................................................... 24
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List of Figures
Figure 1 Parts of the controller ..................................................................................................... 9
Figure 2 Board connections ......................................................................................................... 10
Figure 3 Battery connections ........................................................................................................ 11
Figure 4 Mounting plate (back view) ............................................................................................ 12
Figure 5 Power supply - 12 VDC, 12 VAC, 24 VAC, 24 VDC ...................................................... 14
Figure 6 Wireless communication ................................................................................................ 15
Figure 7 Networking with RS-485 ................................................................................................. 16
Figure 8 Buttons ........................................................................................................................... 17
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List of Tables
Table 1 Controllers ...................................................................................................................... 7
Table 2 Compatible Modules ...................................................................................................... 8
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1.0 Introduction
This document provides information on installing the OpenBAS-HV-WLSTH wireless
thermostat transmitter.
1.1 OpenBAS-HV-WLSTH Wired and Wireless Thermostat Transmitter
Mircom’s OpenBAS-HV-WLSTH wireless temperature and humidity transmitter and
thermostat works with the OpenBAS-HV-VAVFC receiver controller to provide an easy-to-setup HVAC control for HVAC end unit applications such as: variable air volume (VAV) boxes, fan
and coil units, mini split and water source chiller and heat pump units.
The OpenBAS-HV-WLSTH also connects to the receiver module OpenBAS-HV-RF433R to
communicate with any OpenBAS-HV-NX10 series controller.
The OpenBAS-HV-WLSTH works in the 433 MHz unlicensed band to provide an RF link with a
matched receiver up to 30 meters in line of sight applications and 15 meters indoors.
When used in wireless applications, it is powered by two AA alkaline batteries which provide
between 12 and 18 months of operation, depending on the transmission rate.
It also comes standard with an integrated RS-485 port supporting multiple protocols.
It can be integrated into any network and used as a standard temperature and humidity
transmitter or as a powerful yet easy to set environment HVAC controller.
It is fully addressable, and when used wirelessly it can be programmed into a group out of 10,
and each group can have up to 199 individual addresses.
When used wired it can be given an address between 1 and 199 depending on the protocol.
1.2 Features
The OpenBAS-HV-WLSTH integrates into Mircom’s unified platform for automating HVAC and
mechanical rooms as well as incorporating energy management features and lighting control
to offer building owners and managers a seamless operation with the following features:
• Modular design to cover small, medium or large projects.
• Industry standard Fieldbus protocols to integrate into any existing BAS system, such as
BACnet, Modbus, Optomux, N2-Open, and ASCII.
• Connects to the NWK-ETH3 controller for integration into IP networks and uses the
most advanced features and protocols such as distributed computing, USB and Cloud
storage, HTML5, JavaScript, XML, Ajax, SMS, and GSM.
• Modular add-ons for every Building Automation System solution.
• The OpenBAS software which provides owners and managers a single solution for
managing all their building’s automation needs.
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2.0 Overview
2.1 Components
2.1.1 Controllers
Table 1 Controllers
Picture Model Description
Wireless and wired temperature and
humidity transmitter and thermostat
• Operates on two AA alkaline
batteries or an external power
supply (12 V AC/DC to 24 V AC/
DC)
OpenBAS-HV-WLSTH
• Battery life is 12 to 18 months
• 2 1/2 digit LCD display
• four keyboard operator interface
for setpoint and calibration setup.
• Line of sight range of 30 meters
and 15 meters indoors
• 1 RS-485 bus
OpenBAS-HV-WRDT
Wired temperature transmitter and
thermostat
• Operates on an external power
supply (12 V AC/DC to 24 V AC/
DC)
• 2 1/2 digit LCD display
• four keyboard operator interface
for setpoint and calibration setup
• 1 RS-485 bus
Minimum order: 100 units
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2.1.2 Compatible Modules
Compatible modules are mounted separately from the controller.
Table 2 Compatible Modules
Model Description
Wireless Fan & Coil or VAV controller for variable air volume
(VAV) applications
• Wireless receiver for up to 10 temperature transmitters
• Differential pressure sensor for pressure independent VAV
OpenBAS-HV-VAVFC
applications
• Two universal inputs
• 5 digital outputs
• Two analog outputs 0-10 VDC
• Two Fieldbus connections with RS-485 driver
• Can be set as master or slave
Fan & Coil or VAV controller for variable air volume (VAV)
applications
Overview
OpenBAS-HV-FCX
OpenBAS-HV-VAVX
OpenBAS-HV-RF433R (OpenBAS-HVWLSTH only)
• Two universal inputs
• 5 digital relay outputs
• Two analog outputs
• Two Fieldbus connections with RS-485 driver
• Can be set up as master or slave
Minimum order: 100 units
Fan & Coil or VAV controller for variable air volume (VAV)
applications
• Two universal inputs
• Two analog outputs
• Two Fieldbus connections with RS-485 driver
• Can be set up as master or slave
Minimum order: 100 units
Wireless 433 MHz RF receiver that integrates up to 10 wireless
transmitters and thermostats into OpenBAS-HV-NX series
controllers through the I
2
C connection
Mounts in a DIN rail-mounted box
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