THERMO 2000 VoltMax SCR VOLTSCR600144P3 Commercial Electric Boiler | 144 kW - 600V 3 Phase

In stock

The 600 V three-phase VoltMax SCR 144 provides hot-water heat for institutional and commercial buildings, with schedules, an outdoor sensor and email alarms.

Model numberVOLTSCR600144P3

144 kW491,328 BTU/h
138.6 Acurrent at 600 V three-phase
0 to 100%SCR power modulation
600 V · three-phaseSchedules and outdoor sensorLow-water cutoff
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514 316-2973 · sales@airgreen.ca

Quick facts

Model numberVOLTSCR600144P3
ManufacturerThermo 2000
Manufacturer designationVOLTMAX SCR 144-600-3 PH
Output144 kW (491,328 BTU/h)
Power supply600 V, three-phase, 60 Hz
Current138.6 A
CommunicationBACnet IP / MS-TP, Ethernet

A building heated on its own schedule, with 144 kW on 600 V

A boiler for buildings that empty out in the evening

A school, a community centre or an office building does not have the same needs in the middle of a weekday as on a Sunday evening. Thermo 2000’s VoltMax SCR 144 is a 144 kW commercial electric boiler (491,328 BTU/h), here in its 600 V three-phase version. Its Schneider Electric controller handles schedules, adjusts the water temperature with the supplied outdoor sensor and modulates output from 0 to 100% through solid-state relays (SCR) combined with relay stages.

It suits managers of institutional and commercial buildings, school service centres, municipalities and organizations that heat their premises with radiators, hot-water baseboards or radiant floors. It can also supply an indirect water heater through its second setpoint.

What it brings to a Quebec building

600 V three-phase power is common in Quebec’s institutional buildings; there, the VoltMax SCR 144 draws 138.6 A. In a community centre in Longueuil, for example, the outdoor sensor lowers the water temperature on mild autumn days, and the controller raises it during a cold snap, within the 50 °F to 200 °F setpoint range. In the evening and on weekends, the schedules take over.

For a manager in charge of several buildings, the Ethernet port changes daily life: a web page shows the boiler’s status and alarms arrive by email. The controller displays in French or English, in °C or °F, and also communicates over BACnet IP and MS-TP. For safety, Thermo 2000 supplies two limit controls, a factory-installed relief valve and, above 60 kW, a standard low-water cutoff.

How we install it

It all starts with a free on-site estimate, scheduled around the occupancy of your premises. We look at the 600 V service, the loop, the emitters and the access to the mechanical room: the boiler weighs 550 lb (250 kg) and needs 24 in in front, 32 in above and 3 in on the sides and back. You then receive a written quote that includes the circulating pump and the expansion tank, which are not on Thermo 2000’s list of supplied items.

At installation, our crews connect the piping and the electrical circuit, fill and purge the loop, then program the schedules, the outdoor reset curve and the email alarms with your building manager. Thermo 2000 warrants 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. Our RBQ licence 5645-9605-01 covers ventilation, refrigeration and electrical work.

Planning the replacement

Is your building in Longueuil, Montreal, Laval, on the South Shore or the North Shore? Let’s schedule the free estimate: you will receive a written quote, and financing is available.

01 · What it is for

Heating an institutional building on its schedule

A school, a community centre or an office building is not heated the same way at night, on weekends and in the middle of the day. The VoltMax SCR 144 handles those schedules, adjusts the water to the weather and modulates its output from 0 to 100%.

  • Schools, community centres and municipal buildings on 600 V power
  • Office buildings occupied on a regular schedule
  • Buildings whose manager is not on site at all times
  • Radiator, hot-water baseboard or radiant floor loops
Schedules and outdoor sensorThe controller follows a schedule and adjusts the water temperature to the weather with the supplied sensor.
Email alarmsThe Ethernet port opens a web page and sends alarms to the manager by email.
Low-water cutoffStandard on models above 60 kW, in addition to two limit controls with automatic and manual reset.
02 · Specifications

Specifications

From the manufacturer’s documentation. A value the manufacturer does not publish is not listed.

ManufacturerThermo 2000
SeriesVoltMax SCR
Manufacturer designationVOLTMAX SCR 144-600-3 PH
ConfigurationB (99 to 180 kW)
TypeCommercial hot-water electric boiler, vertical
Output144 kW
Output in BTU/h491,328 BTU/h
Power supply600 VAC, 60 Hz, three-phase
Current138.6 A
ModulationSCR 0 to 100% (solid-state relay) plus relay stages
Water volume30 US gal (113.5 L)
Water connections2 1/2 in male NPT, 4 side connections
Relief valve and drain3/4 in female NPT
Max. working pressure125 psi (862 kPa), standard
Setpoint range50 °F to 200 °F (10 °C to 93 °C)
ControllerSchneider Electric, 3 in backlit LCD, alarm codes, °C/°F, French and English
Control functionsStage rotation, outdoor reset, schedules, pump contact with or without domestic hot water priority, second setpoint for an indirect water heater
External control0-10 Vdc signal (setpoint and output)
CommunicationBACnet IP / MS-TP; Ethernet port with web page and email alarms
Heating elementsImmersion type, Incoloy, replaceable
Low-water cutoffStandard (models above 60 kW)
ClearancesSides 3 in, back 3 in, front 24 in, top 32 in, floor 0
Weight550 lb (250 kg)
Manufacturer warrantyThermo 2000: 10 years on the tank (limited warranty, closed-loop heating); 2 years on electrical and mechanical components (parts and accessories)
StandardsCSA C22.2 No. 165-92, UL 834, CSA B-51-14, CRN, ASME Section IV (H)
Model numberVOLTSCR600144P3
03 · Before installing

What to know before installing

  • 600 V three-phase, 60 Hz power supply: 138.6 A. The circuit is sized with a master electrician.
  • For the web page and email alarms, plan access to the building’s Ethernet network in the mechanical room.
  • The circulating pump and expansion tank are not included in Thermo 2000’s list of supplied items.
  • Clearances: 24 in in front, 32 in above, 3 in on the sides and back; none underneath. Weight: 550 lb (250 kg).
In the box
  • Schneider Electric controller with backlit display
  • Outdoor temperature sensor
  • On/off control switch
  • Control and power fuses and breakers
  • SCR relays
  • Two limit controls, automatic and manual reset
  • Factory-installed relief valve
  • Drain valve
  • Low-water cutoff
04 · Documents

Manufacturer documents

05 · See also

Explore the range

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06 · Questions

Frequently asked questions

Can heating be turned down at night and on weekends?

Yes. Thermo 2000 states that the controller handles schedules; we program them to match the building’s occupancy at commissioning. The supplied outdoor sensor also adjusts the water temperature to the weather.

How do we know the boiler is in alarm when nobody is on site?

Through the Ethernet port: the controller serves a web page and sends its alarms by email. It can also be linked to a building management system over BACnet IP or MS-TP.

Which safety devices are supplied?

Two limit controls, with automatic and manual reset, a factory-installed relief valve and, on this model above 60 kW, a standard low-water cutoff.

Is the display available in French?

Yes. The backlit controller displays in French or English, in °C or °F, with alarm codes.

Which warranty applies?

Thermo 2000’s: 10 years on the tank (limited warranty, closed-loop heating) and 2 years on electrical and mechanical components, parts and accessories.

AirGreen · Montréal, Laval, Longueuil, South Shore, North Shore

A 144 kW VoltMax SCR for your building, installed by AirGreen

Tell us about your project: we check the sizing, confirm availability and send you a quote. Or let our technicians install it for you.

RBQ 5645-9605-01Ventilation, refrigeration and electrical
Free estimateon site, for any installation
Quote in 24 hby phone or email
Bouchervilleshowroom

Specifications from the manufacturer’s documentation, checked on October 19, 2026.