LAARS NeoTherm NTV (Sizes 150–285 MBTU/h) - Service Manual - Manual (Page 45)

35 Service Manual NeoTherm 80 - NeoTherm 285
Procedure - Removing or replacing the switch
1. Turn off power to the machine. Use the main
disconnect switch located above the top of the
control panel.
2. Remove the covers on top of the unit so you can
reach the air pressure switch.
3. Remove the mounting screws on both sides
of the switch. Use the screwdriver or the 5/16”
socket.
4. Use the pliers to release the hose clamps and re-
move the air hoses from the bottom of the switch.
Important! During reassembly, the hoses must
be connected to the correct barbs on the switch.
Do not reverse the connections.
To prevent this, you should mark one of the
hoses. Remove the front hose first. Mark the
rear hose with a piece of electrical tape, then
remove the rear hose.
5. To reassemble, reverse the procedure we have
just described. Be sure to connect the two air
hoses in the correct locations.
Removing and Replacing the Air Pressure Switch (continued)
B17
cont.