THERMO 2000 VoltMax SCR VOLTSCR24072P3 Commercial Electric Boiler | 72 kW - 240V 3 Phase

72 kW on 240 V three-phase, metered from 0 to 100% to spare the electrical service

A commercial boiler for buildings on 240 V three-phase

The VoltMax SCR 72 is the 72 kW version of Thermo 2000’s commercial electric boiler, here on 240 V three-phase (manufacturer designation: VOLTMAX SCR 72-240-3 PH). It produces 245,664 BTU/h and heats the water in a closed loop: radiators, a radiant floor, the hot-water coils of an air handling unit or an indirect water heater.

It is meant for owners of apartment buildings, managers of offices or shops, and contractors working in buildings with a 240 V three-phase electrical service. It is chosen for new construction or to replace a commercial electric boiler that is reaching the end of its life.

What 240 V three-phase changes in your building

At 240 V, a 72 kW boiler draws a lot of current: Thermo 2000 lists 173.2 A. That is the first thing we look at in a Plateau building in Montreal or a small commercial building in Longueuil: the capacity of the service, the free space in the panel, the conductor run to the mechanical room.

SCR modulation helps on exactly that point. Instead of switching its elements on in blocks, the boiler adjusts its output from 0 to 100% through solid-state relays, on top of its relay stages, and the manufacturer states that this approach limits peak power. On a mild autumn day, it supplies only what the loop asks for; in deep cold, it ramps up gradually to its full 72 kW.

The backlit Schneider Electric controller adjusts water temperature from the supplied outdoor sensor, accepts a setpoint from 50 °F to 200 °F and can follow schedules. If the building has a central management system, it communicates over BACnet IP or MS-TP, or takes a 0-10 Vdc signal for setpoint and output. The Ethernet port gives access to a web page and sends alarms by email.

Installation by AirGreen, from site survey to commissioning

Everything starts with a free on-site estimate. We check the 240 V three-phase service, the existing loop and the mechanical room, then give you a written quote that details the boiler and what has to be added around it: circulator, expansion tank and, if needed, an indirect water heater, since these parts are not on the list Thermo 2000 supplies.

On installation day, our crews set the boiler in place within the manufacturer’s clearances (3 in on the sides and back, 24 in in front, 32 in above), connect the piping to the 1 1/2 in NPT side connections, wire the three-phase supply, mount the outdoor sensor, fill and purge the loop, then set up the controller with you. Thermo 2000 covers the tank for 10 years (limited warranty, closed-loop heating) and the electrical and mechanical components for 2 years.

AirGreen is a family business established in Montreal for more than fifteen years. We hold RBQ licence 5645-9605-01 in ventilation, refrigeration and electrical work, which lets us handle the boiler’s electrical connection.

Let’s talk about your building

Whether your building is in Montreal, Laval, Longueuil, on the North Shore or on the South Shore, ask for your free estimate: you will receive a written quote, and financing is available.