2. INDEECO ELECTRIC HEATERS FOR INDUSTRIAL APPLICATIONS

3. Waste Water Treatment Plants
Pump Control Room
Control Room
Laboratory
Grit Separation
Pump House

4. OIL AND GAS

5. Chemical Storage

6. Air Make-up

7. Explosion-Proof Duct Heaters
ULTRA-SAFE CLASS I & II, DIV. 1 & 2,
GROUP B,C,D,E,F,G, T3C
CCSAUS, Approved
EP2
CLASS I, DIV 2, GROUP C,D, T3
CCSAUS, ABS Approved

8. ULTRA-SAFE Duct Heater

9. Ultra-Safe Duct Heaters
CSA Approved, Division 1 and 2 Locations
T3C Code, Gas and Dusty Locations
Up To 240 kW, Single and SCR Staging
Horizontal Airflow
Heat Exchanger Design
Corrosion Resistant Construction Available

10. Equipment Room at Pumping Station
Recirculation
Equipment Room at Pumping Station

11. Hazardous Location Unit Heater

12. Hazardous Location Unit Heater

13. Classifications Ratings
CLASS I, DIVISIONS 1 & 2, GROUPS C & D CLASS II, DIVISIONS 1 & 2, GROUPS E,F &G TEMPERATURE CODE T3C, 320ºF (160ºC)

14. Standard Safety Features
T3C 320ºF (160ºC) Temperature Code
Dual Over-temperature Protection, Automatic and Manual Reset
Nontoxic Propylene Glycol Heat Transfer Fluid
Low 70 PSIG Pressure Relief Valve Settings
CSA Approval

15. Disconnect Switch with Lock-out
Heater Accessories
Fan Selector Switch
Disconnect Switch with Lock-out
Pilot Lights
Thermostat

16. Corrosion-Resistant Construction
316 Stainless Steel
HERESITE® Coating

17. Corrosion-Resistant Construction
316 Stainless Steel
Corrosion-Resistant Construction
Recommended for Waste Water Treatment Plants
Recommended for Hydrogen Sulfide (H2S)GAS Environments
Extended Life Expectancy in Corrosive Areas over Carbon Steel

18. Corrosion-Resistant Construction
HERESITE® Coating
Corrosion-Resistant Construction
Recommended for use in Chemical Plants
HERESITE baked phenolic coatings will withstand exposure to practically all corrosive atmospheres with the exception of strong alkalies such as potassium and sodium hydroxide, strong oxidizers such as aqua regia and wet bromine, chlorine and fluorine in concentrations greater than 100 ppm.

19. Fan Motor
1/4 Hp 3-20 kW, 1/2 Hp kW heaters
Performance Characteristics kW
3-5
7.5-10
15-20 25 30
CFM
650
850
1800
3110
3850
Throw (Ft) 15 45 65 75
∆ T (⁰F)
15-25
28- 38
27-35 26

20. Water Treatment Plants

21. Food Processing

22. Car Wash

23. Coal Processing Plants and Mines
Coal Processing Facility
Potash Mining
Coal Crusher
Large Drilling Carriage

24. Hose Down Unit Heater

25. Fan Motor
1/4 Hp on all heaters
Performance Characteristics kW
2-7.5
9-12
CFM
700
1450
2400
Throw (Ft) 26 43 50
∆ T (⁰F)
9-35
20-26
17-64

26. HAZARDOUS (CLASSIFIED) LOCATIONS

27. ADVANTAGES OF ELECTRIC HEATING
Electric Heating Can Be Installed into a Hazardous Area, Where Gas or Oil Heating Can Not
Electric Heating has Lower Installation Cost
Electric Has Lower Maintenance Cost Than Hot Water or Steam Systems
Electric Heaters Have Better Temperature Control
Availability, Electricity is Often the Only Available Power Source in Remote Locations

28. APPLICATIONS FOR HAZARDOUS LOCATIONS
CLASS 1 Oil And Gas Drilling Rigs, Petroleum Or Pumping Facilities, Petrochemical Plants, Wastewater Treatment Plants, Solvent Extraction Plants.

29. APPLICATIONS FOR HAZARDOUS LOCATIONS
CLASS 2
Coal Fired Power Plants, Coal Preparation/Coal Handling Facilities, Coal Mines, Grain Elevators, Flour And Feed Mills
FLAMMABLE
DUST

30. APPLICATIONS FOR HAZARDOUS LOCATIONS
CLASS 3 Textile Mills, Woodworking Plants, Cotton Gins And Cotton Seed Mills, Flax Producing Plants
CAUTION
FLAMMABLE
FIBRES OR
FLYINGS

31. NEC and CEC CLASSIFICATIONS
CLASS 1 - Flammable Gases Or Vapors
CLASS 2 - Flammable Dust
CLASS 3 - Fibers Or Flying
DIVISION
DIVISION 1 - Always Hazardous
DIVISION 2 - Not Always Hazardous
GROUP
CLASS 1 - Groups A,B,C,D Gases
CLASS 2 - Groups E,F,G Dusts

32. NEC and CEC IGNITION TEMPERATURE CODES
T F
T F
T2A F
T2B F
T2C F
T2D F
T F
T3A F
T3B F
T3C F

33. ZONE CLASSIFICATION SYSTEM
ZONE 0 – Always, Temporarily or Often Present (Class I, Division 1) ZONE 1 – Occasionally Present ZONE 2 – Very Seldom or Only Present for a Short Period (Class I, Division 2)

34. ZONE CLASSIFICATION SYSTEM
ZONES FOR DUSTS
ZONE 20 – Always, Temporarily or Often Present
(Class II, III, Division 1)
ZONE 21 – Occasionally Present
ZONE 22 – Very Seldom or Only Present for a Short Period
(Class II, III, Division 2)

35. CLASSIFICATIONS GASES AND VAPORS DUSTS
Acetylene – IIC (Class I, Group A)
Hydrogen – IIB + H (Class I, Group B)
Ethylene – IIB (Class I, Group C)
Propane – IIA (Class I, Group D)
DUSTS
Metal Dust – IIC (Class II, Group E)
Carbonaceous Dusts – IIB (Class II, Group F)
Non-Conductive Dusts – IIA (Class II, Group G)
Fibers and Flyings – (Class III)

36. ZONE IGNITION TEMPERATURE CODES FOR GASES
T1 < 450 C (Hydrogen)
T2 < 300 C (Acetylene)
T3 < 200 C (Diesel Fuel)
T4 < 135 C (Ethyl Ether)
T5 < 100 C
T6 < 85 C (Carbon Disulphide)
Dust explosion-proof temperature is the maximum surface temperature as shown (e.g. T80 C)

37. APPLICATIONS FOR HAZARDOUS LOCATIONS
Oil and Gas Rigs and Crew Quarters
Battery Storage Areas
Chemical Plants
Control Rooms
Dry Cleaning Plants
Gasoline Fueling/Storage Areas
Parking Garages
Sewage Treatment/Wastewater Treatment Plants

38. SCR PROPORTIONAL Vs ON-OFF CONTROL

39. Best Temperature Control Conserves Energy
SCR CONTROLLED
Best Temperature Control
Conserves Energy
SCR cooling fins
Most Efficient

40. SCR POWER CONTROLLER Zero Cross SCR with 1 Second Time Base
On ½ Sec = 50%
Full On 1 Sec = 100%
up to 600-Volts, 3-Phase, 60/50 Hz

41. Staged ON-Off Control on on on Stage 3 Temperature Set Point Stage 2
Time

42. SCR CONTROLLED
Set Point
Temperature
Time

43. VERNIER CONTROL
SCR
Set Point
Temperature
Stage 3
Stage 2
Stage 1
Time

44. Thank You