EXTON SINGLE PHASE HEATERS (208, 240, 277 volts)

The "EX" model is particularly suitable for installation at the point-of-use, feeding a single outlet, being fed with deionized water at a relatively constant temperature. The rate of flow through the heater should be regulated so as to give the desired outlet temperature.

The "EX-T" series is fundamentally similar to the "EX", except that the heaters are fitted with a CLOSE LIMIT ELECTRONIC THERMOSTAT which is able to control the outlet temperature within ±1°F (1/2°C) when deemed necessary.

Dimensions:
10-3/4"H" x 5-1/4"L" x 2-7/8"W" / 27.3 cm x 13.3 cm x 7.3 cm
Weight: 5 lbs / 2.3 kg
Inlet/Outlet fitting: 1/2" compression 316 S/S
Color: White
Elements: Replacement Cartridge Insert (80% Ni, 20%)
Heater Body: Udel (engineering plastic for deionized water)
Operating Pressure: 28 psi - min / 2 bars, 150 psi - max / 10.5 bars
UL Listing: E36857 (M)
Model Volts Amps per Phase Output (kW) Flow Rate (gal/min) Switch-On Flow Rate (gal/min)
65°F RISE 70°F RISE 75°F RISE
EX55TDI 208 19.7 4.0 0.42   0.4
EX75TDI 208 27.0 5.5 0.58 0.54 0.5 0.5
EX95TDI 208 34.0 7.0 0.75 0.69 0.65 0.65
EX98TDI 208 40.0 8.3 0.87 0.8 0.75 0.65
EX55TDI 240 23.0 5.5 0.58 0.54 0.5 0.4
EX75TDI 240 32.0 7.5 0.79 0.73 0.68 0.5
EX95TDI 240 40.0 9.5 1.00 0.93 0.86 0.65
EX60TDI 277 21.7 6.0 0.63 0.58 0.55 0.5
EX80TDI 277 28.8 8.0 0.84 0.78 0.73 10.65
EX100TDI  277 38.5 10.0 1.05 0.97 0.91 0.85

EXTON THREE PHASE HEATERS (480/277 - 208/120 volts)

EXTON "Three Phase DI" water heaters are of modular construction using three standard heating modules which can either be plumbed in series of parallel, and subject to a maximum voltage of 277 volts across any one element, which may be electrically wired in WYE (STAR) or DELTA configuration. This series should be used for higher rates of flow where the single phase heaters can not produce enough water at the required temperatures.

In some applications, where a steady rate of flow at a constant temperature from a deionized water supply ata constant temperature, is required, the "EX" or "Flow Controlled" series is satisfactory. The rise in temperature is determined by the rate of flow and the power of the unit in accordance with the table below. Where the supply water temperature is erratic or varying rates of flow are required, the "EX-T" Thermostatic series will give a more controlled performance.

The heater must be installed ONLY IN THE VERTICAL POSITION with the inlet/outlet fittings and electrical conduit entry at the bottom.

Dimensions:
12-1/4"H" x 18-1/4"L" x 4-1/4"W" / 31.1 cm x 46.4 cm x 10.8 cm
Weight: 15 lbs / 6.8 kg
Inlet/Outlet Fitting: 1/2" compression 316 S/S
Elements: Replacement Cartridge Insert (80% Ni, 20% Cr element wire)
Heater Body: Udel (engineering plastic for deionized water)
Operating Pressure: 28 psi - min / 2 bars, 150 psi - max / 10.5 bars
UL Listing: E86887 (M)
U.S. Patent No: 4.762.980
Model Volts Amps per Phase Output (kW) Flow Rate (gal/min) Switch-On Flow Rate (gal/min)
65°F RISE 70°F RISE 75°F RISE
EX180TDI  208 50 18 1.89 1.76 1.64 1.5
EX240TDI 208 67 24 2.52 2.34 2.18 1.9
EX320TDI 277 38.5 32 3.36 3.12 2.91 2.5
EX180TDI 277 22 18 1.89 1.76 1.64 1.5
EX240TDI 277 29 24 2.52 2.34 2.18 1.9

EXTON INTERNATIONAL
(220 volts) - Single Phase Unit
(380/220 volts) - Three Phase Unit

Pressure: 2 bar min, 10 bar max
Fittings: 1/2" compression 316 S/S
Heater Body: Udel (engineering plastic for deionized water)
Weight: 2.3 kg (single phase), 6.8 kg (three phase)
Dimensions (single phase): 13.3 cm H x 27.3 cm L x 7.3 cm W
Dimensions (three phase): 31.1 cm H x 38.7 L cm x 10.8 cm W

Model Volts Amps per Phase Output (kW) Flow Rate LPM Switch-On Flow Rate
35°C RISE 40°C RISE 45°C RISE
EX552TDI - No Longer Available 220 25 5.5 2.2 2.0 1.9 1.5
EX662TDI - No Longer Available 220 30 6.6 2.6 2.4 2.2 1.9
EX772TDI - No Longer Available 220 35 7.7 3.0 2.8 2.6 2.3
EX882TDI - No Longer Available 220 40 8.8 3.5 3.2 3.0 2.5
EX165TDI - No Longer Available  380/220 25 16.5 6.6 6.0 5.6 4.5
EX198TDI - No Longer Available 380/220 30 19.8 7.9 7.3 6.8 5.7
EX231TDI - No Longer Available 380/220 35 23.1 9.2 8.5 7.9 7.2
EX264TDI - No Longer Available 380/220 40 26.4 10.5 9.7 9.0 7.5

Typical Installation Diagram 1

Typical Installation Diagram 2

Typical Installation Diagram 3

Selecting the correct heater(s) for your application(s)

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EXTON INDUSTRIES, L.C. • Ph: (434) 978-4335 • Fax: (434) 978-4935 • E-mail: mail@extonindustries.com