Installation & User Guide

HMI VOLCANO UL (1-4-2801-0222), Rev. 16
1. IMPORTANT INFORMATION FOR INSTALLERS AND FINAL USERS
This controller should be:
 Installed only by qualified personnel in accordance with
local and national regulations.
 Mounted properly as described in the manual, so the
casing or enclosure is only accessible to the end user
and protection against electric shock is assured.
 Proper installation is intended to care of the Class II
requirements (reinforced insulation) to prevent electric
shock hazard.
2. MANUFACTURER INFORMATION
This product is manufactured by VTS AMERICA Inc
3535 Gravel Springs Rd. Extension, Suite 201
GA 30519 Buford,
Phone: [phone],
Fax: [phone],
E-mail address: [e-mail]
3. THE PURPOSE OF THE HMI VOLCANO UL (1-4-2801-0222)
HMI VOLCANO UL unit is an electronic controller dedicated for
range of VOLCANO unit heaters and air destratifiers. The controller
manages the unit’s performance by means of fan revolutions and air
heating capacity regulation, also supported by the time schedule.
The HMI VOLCANO UL is equipped with Modbus RTU port
supporting two-ways communication with BMS systems. This
controller is dedicated for the following range of VOLCANO Air
Heaters manufactured by VTS:
HMI VOLCANO UL
(1-4-2801-0222)
VR Mini EC
VR 1 EC, VR 2 EC, VR
3 EC
VR-D MINI EC
VR-D EC
CAUTION. This HMI VOLCANO UL should not be used as a controller for any other products than above listed.
4. TERMINALS OF THE HMI VOLCANO UL
This HMI VOLCANO UL controller has a range of terminals
available on the back panel of it.
Function of each terminal is listed below:
 L1 – Power supply phase
 L2 – Power supply phase
 C – Not connected (N/C)
 H – Heat - Digital relay output
 X – Not connected (N/C)
 A0 – 0-10 Volts analog output for fan speed regulation
 – Reference ground for 0-10 V communication
 TS (left) – Optional air temperature sensor
 TS (Right) – Optional air temperature sensor
 A, B – RS-485 ModBUS RTU - BMS communication port
5. INSTALLATION AND WIRING
Caution. Before attempting to any installation works, ensure that VOLCANO unit (being a power supply source for this controller) is
mechanically disconnected from electric power supply.
Apply one of the following connection methods, depending on the or VOLCANO unit you have
 The VR Mini EC, VR1 EC, VR2 EC and VR3 EC units are equipped with hydronic heater.
 The VR-D EC and VR-D Mini EC are Air Destratifiers only – with no heating coil at all.