Thermon MIQ Mineral Insulated Heating Cable v.2 - Manual (Page 5)

INSTALLATION PROCEDURES
Illustration B: Typical Orientation of Heating Cable and Sensor Location . . .
45º
45º
45º 45º 45º
90º
Single Cable Installation Dual Cable Installation Triple Cable Installation
45º
45º
Temperature
Sensor (Typ.)
Heating Cable
(Typ.)
Pipe Wall
Cold Lead Wires
Gland Connector
Cold Lead
Flange Valve
MIQ Heater Cable
Stainless Steel
Tie Wire
or Banding
Pipe Support Shoe
Cable Set
Strain Relief
Fitting
Cable Set
Hot-To-Cold
Fitting
Cable Allowance for Inline
Heat Sinks (Typ.)
Illustration A: Temporary Installation . . .
Before Installing Cable . . .
1. Be sure all piping and equipment to be traced is com-
pletely installed and pressure tested.
2. Surface areas where heat tracing is to be installed must be
reasonably clean. Remove dirt, rust and scale with a wire
brush and oil and grease films with a suitable solvent.
3. Review any applicable local codes and standards prior to
beginning the installation.
4. Refer to heat tracing isometric drawings for power point
location, equipment allowances, etc. Confirm if MIQ sets
are to be connected in series.
5. Confirm measurements of piping length, including in-line
equipment before beginning installation.
Initial Installation . . .
1. Determine the orientation of the heating cable(s) on the
pipe. The upper 90° of the pipe should be avoided to mini-
mize the possibility of mechanical damage to the heating
cable. Also, the sides of the pipe should be avoided since
this is the normal location of the insulation seams. Refer to
Illustration B for typical heating cable orientations.
2. Begin temporary installation at the proposed hot-to-cold
junction (power end) location and lay out heating circuit
on the pipe. Refer to Illustration A for temporary installa-
tion.
3. Make heating cable allowances for valves, flanges, elbows
and supports as per the applicable drawings and table on
pages 5 thru 7 of these installation procedures.
4. Fix hot-to-cold junction at 6" (15 cm) distance on both
sides using stainless steel tie wire or banding. Do not
loop back cold lead on small diameter pipes where the
minimum bending radius will be exceeded.
5. Install cable with slight "wave" on pipe. Secure cable to
pipe with stainless steel tie wire or banding.
6. Adjust cable where necessary.
4