Neptronic | Electric Heaters | Tubular & Finned Tubular

Home Electric Heaters Tubular and Finned Tubular

Tubular Electric Heaters

Tubular and Finned Tubular Open Coil - Open Coil

Less sensitive to humidity and dust
Suited for demanding environments
Excellent mechanical resistance
Heating element not in direct contact with air

HECB Networkable Controller Open Coil - HECB

BMS Integration
Save energy
Monitor alarms
Remote diagnostics

Installation Options Open Coil - Options

Slip-in, flanged, or round
Vertical or horizontal mounting
Selectable control panel configurations
Selectable enclosure rating

Tubular and Finned Tubular

Tubular
Electric Heaters
HEC / HECB
Heater Controller
Options
Mounting & Control
Panel Options

Tech Time

Tubular and Finned Tubular – Electric Heaters

Overview

Up to 13 kW per sq.ft. (Tubular)

Up to 15 kW per sq.ft. (Finned Tubular)

Heating elements not in direct contact with air

Element of U or W shape:

Tubular Elements:
-Incoloy 840 (Nickel alloy)
-Stainless Steel 316L (optional)
Finned Tubular Elements:
-Steel tubes with Steel fins
-Stainless Steel 316L tubes with Stainless Steel 304 fins (optional)

Integrated HEC controller

Advantages

The Tubular and Finned Tubular heater type offers
an excellent mechanical resistance, suited for
demanding environments. These elements are less
sensitive to humid and dusty environments but offer
a slower response time.

Tubular vs Finned Tubular

Tubular Elements:
- Incoloy 840 (Nickel alloy)
- Stainless Steel (optional) tube with a diameter of 7/16"
(11mm) with heating coil in magnesium oxide powder

Finned Tubular Elements:
- Steel or stainless steel (optional) tubes, with fins installed on the tube to allow a higher heat dissipation capacity.

HECB - Networkable Controller
HEC - Standard Controller

Overview

Supply and Discharge Sensors

Used to calculate a true ΔT by
eliminating the offset from radiant
heat. Two Neptronic STC8-11 duct
temperature sensors included.

BMS Integration

Integrate with a BMS and intelligent
buildings via BACnet MS/TP or
Modbus to propel you towards
the Internet of Things (IoT)

Remote Monitoring

Perform energy management, alarm
monitoring and remote diagnostics
even without integrating with a BMS.

Real-Time Clock (RTC)

Enables real-time data, trending,
and scheduling.

Remote User Interface (TRL24)

Displays alarms, room temperature,
setpoint, status and demand.

Built-in Current Transducers

Calculates real-time power
consumption (kW) data.

Standard Features

Accepts any industry standard input signal
Quick and simple input signal selection via DIP switches
Modulating, on/off, and/or up to 10 stages
Real-time feedback output of heater capacity
Automatic PID
Remote feedback with TRL54 or TRL24 LCD thermostat (eliminates the use of expensive staged thermostats)
Zero voltage crossing SSR

Network Communication

BACnet MS/TP or Modbus RTU (selectable via menu)
Select MAC address via DIP switch or via network

BACnet MS/TP

MS/TP @9600, 19200, 38400 or 76800 bps
BACnet scheduler (up to 6 events)
Firmware upgradeable via network
COV (change of value)
Copy and broadcast configuration to other HECB controllers via menu or network
Automatic baud rate detection
Automatic device instance configuration

Modbus RTU

Modbus RTU @9600, 19200, 38400 or 57600 bps
RTU Slave, 8 bits (configurable parity and stop bits)
Connects to any Modbus RTU master

Control Modes and Input Signals

Control Mode

Input Signals

External

Demand:

Analog signal from TRO5404
or other controller:
0-10Vdc, 2-10Vdc, or 4-20mA

Internal

Temp:	Room STR1-11 or Duct STC8-11
Setpoint:	On-board potentiometer
Demand:	HECF controller

Temp & Setpnt:	TRL54, or TRL24
Demand:	HECF controller

Temp:	Duct STC8-11
Setpoint:	TRL24
Demand:	HECF controller

TPM

Demand:

0 to 5V dc pulse

Neptronic Signal

Demand:

IT03-11 (setpnt) +
STC8-11 (duct temp)
or
STS3-11 (setpnt)

Pneumatic

Direct or reverse acting 0-15 PSI (0-103 kPa)
Factory set from 1-15 PSI (7-103 kPa)

Remote

Demand:

BACnet network

All of the above

24Vac digital pulse, or ground digital DC pulse

= requires HECB Networkable Controller

Installation Options
Control Panel Options
Enclosure Ratings

Slip-In

For entire frame to be inserted in the duct

Flanged

For heaters to be an integral part of the duct work

Round collar

For round duct systems of 6" to 24" (152mm to 609mm) diameter

No need to define air flow orientation Designed for Vertical or Horizontal Mounting

Vertical

Horizontal

Bottom Control Panel

for easy installation and maintenance

Insulated Control Panel

for high duct temperatures. Insulated material, 1” thick, is installed between the panel

Remote Control Panel

for installing the control panel remotely from the heater or in a separate room

Indoor Use

*NEMA Type 1 (IP10)

Incidental contact

Falling dirt

NEMA Type 12 (IP52)

Incidental contact

Circulating dust

Falling Dirt

Lint

Fibers

Flyings

Driping

Light splashing of liquids

Indoor / Outdoor Use

NEMA Type 4 (IP56)

Incidental contact

Falling dirt

Rain

Sleet

Snow

Windblown dust

Splashing water

Hose-direct water

External formation of ice

NEMA Type 4X (IP65)

Incidental contact

Falling Dirt

Rain

Sleet

Snow

Windblown dust

Splashing water

Hose-directed water

Corrosion

External formation of ice


BMS Integration	BACnet & Modbus (selectable)	Energy Management	Monitor Alarms	Remote Diagnostics	Auto Load Shedding

Tubular Electric Heaters

Tubular and Finned Tubular

Tubular

HEC / HECB

Options

What's New

Awards

Overview

Benefits

Standard Features

Network Communication

Standard Features

Up to 10 Stages

Control Modes and Input Signals