16
Block diagram for “IT” type series”
1
Control unit power supply
2
Power unit power supply
3
Remote operating and fault indication (option “Z242”)
4
Interface connection RS 232/RS 485 (option “Z246”/“Z247”)
5
External controller
6
External set-point adjuster
1
2
Mk4
9
P/I
4
3
P/I
5
12
11
7
10
8
6
7
Maximum humidistat (external security chain)
8
Duct sensor inlet air (option “TR116R/TR200”)*
9
Room sensor (option “TR116S/TR200”)*
10
Duct sensor outlet air (option “TR116R/TR200”)*
11
Internal set-point adjuster
12
Internal controller
*
Other commercially available sensors can be used
Summary of Contents for Mk4 IT 10 Series
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