ECM-OS
Electronic Control Module
INSTALLATION PROCEDURES
The Heat Tracing Specialists
®
ECM-OS INSTALLATION PROCEDURES
The following installation procedures are suggested guidelines
for the installation of the ECM-OS Kit. For translations other
than English and local language translation provided here,
please contact Thermon. The English language installation
procedure shall govern.
Receiving, Storing and Handling . . .
1. Inspect materials for damage incurred during shipping.
2. Report damages to the carrier for settlement.
3. Identify parts against the packing list to ensure the
proper type and quantity has been received.
4. Store in a dry location.
Kit Contents . . .
1
Item Quantity Description
1 1 Stainless Steel Junction Box
Electronic Control Module w/ Terminal Blocks
(Refer to terminal specications for maximum allowable wire size)
2 1
2
ECM Type*
C - Controler
L - Limiter
CL - Controller/Limiter
* The maximum pipe exposure temperature is limited to 232°C
Order Separately . . .
1 Power Gland
1
2
3
2 Heating Cable
3 RTD
PETK Power and End Termination Kits (per cable)
PETK-1 for RSX, VSX, BSX
PETK-2 for KSX, HTSX
PETK-3-ECM for HPT, FP
1
6
Item Quantity Description
1 1 RTV Tube
2 1 Power Connection Boot
3 2 Ground Sleeve
4 1 End Cap
5 1 Tape Strip (PETK-3-ECM only)
6 1 End Termination Caution Label
2
3
4
5
Order Separately . . .
IEK Insulation Entry Kit (per cable)
IEK-SXL: for RSX, VSX,
IEK-SXM for BSX
IEK-SXS for KSX, HTSX
IEK-HPT for HPT
IEK-RTD for RTD Lead Wire
Dimensions . . .
177mm
237mm
90mm
Warnings . . .
• Due to the risk of electrical shock, arcing and re caused
by product damage or improper usage, installation
or maintenance, a ground-fault protection device is
required.
• Installation must comply with Thermon requirements
(including form PN 50273U for Ex systems) and be
installed in accordance with the regulations as per the
norm EN IEC 60079-14 for hazardous areas (where
applicable), or any other applicable national and local
codes.
• Component approvals and performance ratings are
based on the use of Thermon specied parts only.
• Only appropriate Ex certified glands, blanks and
adaptors with a degree of protection of IP66 or better
may be used.
• De-energize all power sources before opening enclosure.
• Avoid electrostatic charge. Clean only with a damp cloth.
• Keep ends of heating cable and kit components dry
before and during installation.
• Minimum bending radius of heating cable is 32 mm
(except HPT is 57 mm and FP is 19 mm).
• Individuals installing these products are responsible
for complying with all applicable safety and health
guidelines. Proper Personal Protective Equipment (PPE)
should be utilized during installation. Contact Thermon
if you have any additional questions.
Tools Required . . .
3 mm
8 mm
Wire Cutters
28 mm
33 mm
Certications/Approvals . . .
II 2 (2) G Ex eb mb [ib] IIC T4, Ex tb IIIC T135°C SIRA 12ATEX5239X
II 2 (2) D Ex tb IIIC T135°C IP66 Db
International Electrotechnical Commission
IEC Certication Scheme for Explosive Atmospheres
SIR 12.0103X
2
ECM-OS INSTALLATION PROCEDURES
RTD
Lead Wire
RTD
Sensor
1. Slide appropriate IEK insulation entry
kit components onto cable.
45°
min.
300 mm
(12")
4. Locate bus connection (HPT and FP only)
as shown. Cut end of cable at angle to
aid in piercing grommet. Leave additional
cable for expansion as needed.
2. Mounting: Secure wall mount to
mounting surface using screws
(provided by others).
5. Insert cable into gland. Make
sure bus connection (HPT and FP
only) remains outside of expediter.
3. Position RTD Sensor(s) in grommet. Do
not pull from the sensor end when routing
through the RTD gland. Pull sensor from
the lead wire portion.
6. Terminate cable with appropriate PETK
termination kit. Refer to PETK installation
instructions. Push excess cable back
through gland. Tighten cap securely. Tape
cable expansion loop to pipe.
7. Install M25 power gland (order separately)
and M25 blind plug.
The Heat Tracing Specialists
Power Cable
8. Install power cable. Complete system
wiring. Terminal set screws shall be
tightened to a torque value of 1,4
Nm (12,4 lb-in). See wiring details.
Set modules electronic control and/or
control limiter at desired setpoints.
®
3
Wiring Details
A
RTD
Controller Sensor
Heater output
NC
C NO
Alarm Relay
L LN N
B
B
B
B
Limiter Sensor
A
Main supply
9. Wiring Details:
Connect ground wire from power cable,
braid from heater, and connections from
the module to the grounding strip.
RTD
GND12
Comm. Port
ECM-OS INSTALLATION PROCEDURES
RTD Lead Wire
IEK
Insulation Entry
Heat
Trace
10. Use the rotary switches for settling
Control and Limit Temperature, (Celsius
or Fahrenheit) and Auto or Manual reset
(Control switches on Type "C", Limiter
switches on Type "L" and both on Type "CL").
RTD Lead Wire
IEK
Insulation Entries
13. Install IEK insulation entry kit to seal
heating cable and RTD lead wire
penetrations through insulation cladding.
11. Install junction box lid using mounting
screws provided.
12. Slide IEK insulation entry kit onto RTD
lead wire. Fix RTD lead wire and sensor
to pipe.
THERMON . . . The Heat Tracing Specialists
For the Thermon ofce nearest you visit us at . . .www.ther mon.com
European Headquarters
Boezemweg 25 • PO Box 205
2640 AE Pijnacker • The Netherlands
Phone: +31 (0) 15-36 15 370
Specications and information are subject to change without notice. Form PN50872U-0314
®
Corporate Headquarters
100 Thermon Dr. • PO Box 609
San Marcos, TX 78667-0609 • USA
Phone: +1 512-396-5801
4
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