Preheater - Overview - MTU 16V4000M73 Operating Instructions Manual

8.17.7 Preheater – Overview
1 Outlet
2 Non-return valve
3 24 VDC connection
4 Connection to ship's power
supply system
250 | Coolant System, General, High-Temperature Circuit | MS150123/01E 2017-05
5 Junction box
6 ON/OFF switch
7 Inlet
8 Thermostat
9 Nonmetallic cover and cap
10 Circulating pump
Arrow Flow direction