CMH Connect
Installation Instructions
CMH-CON
Page
6
of
6
HD140401-1 Rev 2
Part No. DREX0074
III.
PREVENTIVE MAINTENANCE
Prior to startup and on a regular annual basis it is recommended that both visual and electrical inspections be
performed. The following is a list of heating cable system checks.
Thermal Insulation: Check the waterproofing for damage as well as cracks or gaps in caulking on the thermal
insulation to ensure no damage exists resulting in poor insulation values.
Inspect all electrical enclosures for moisture, corrosion or foreign matter.
Check all electrical connections for tightness and perform an insulation resistance check with a megger, from
heating cable conductor to sheath (ground). The minimum resistance should be 5 MOhm or higher.
HEATING CABLE TESTING REPORT
Customer
Contractor
Site Location
Project Ref.
READINGS PRIOR TO INSTALLATION:
Insulation Resistance
(MOhm)
Panel No.
Breaker
No.
Ambient Temp.
Volts
Amps
Tested By
Date
READINGS AFTER INSTALLATION:
Insulation Resistance
(MOhm)
Panel No.
Breaker
No.
Ambient Temp.
Volts
Amps
Tested By
Date
FINAL READINGS:
Insulation Resistance
(MOhm)
Panel No.
Breaker
No.
Ambient Temp.
Volts
Amps
Tested By
Date
