![background image](http://html1.mh-extra.com/html/danfoss/3-series/3-series_operating-manual_4360765012.webp)
12 | © Danfoss | 2022.11
LGB53080
Termix VX-IV - 3 Series DS Fully insulated
Design
A
Heat exchanger, HTG
10
Circulator pump
38
Expansion tank
M
Electrical wiring box
14
Sensor pocket, energy meter
41B
Fitting piece, energy meter
4
Safety valve
20
Filling/drain valve
48
Air vent, manual
7
Thermostatic valve, HTG
26
Pressure gauge
69
On/off valve
9
Strainer
31
Differential pressure controller
Your HIU may look different from the HIU shown