Drilling instructions for duct installation kit - HMT120

HMT120 User Guide
Document code
M211244EN
Revision
D
Language
English
Product
HMT120
Document type
User guide
Figure 1. Drilling instructions
1
Mounting screw
2
Tension screw
3
Probe assembled in plastic pipe of duct installation kit

To drill the holes for the duct installation kit:

  1. Use a 24-mm (0.9-in) drill bit to drill a hole to the duct wall for the probe.
  2. Drill holes for the duct installation kit mounting screws around the hole in a square arrangement, 42 mm (1.6 in) apart from each other. Use a 3.2-mm (0.13-in) drill bit to drill the holes for the mounting screws (four ST4.2×16-C-Z DIN 7981 screws).