LAARS NeoTherm NTV (Sizes 150–285 MBTU/h) - Service Manual - Manual (Page 70)

60 Service Manual NeoTherm 80 - NeoTherm 285
Disassembly Procedure:
1. Turn off power to the machine. Use the main discon-
nect switch on the front of the machine, just above
the control panel.
2. Remove the front panel.
3. Shut off the gas at the gas shutoff valve on the right
side of the machine (yellow handle).
4. Unplug the wires running to the gas valve. The
connector is keyed, and can only be plugged in one
way.
5. Disconnect the small vacuum hose running to the
top of the gas valve.
6. Disconnect the wires to the blower. There are two
connectors. The power wires run to the rear con-
nector, and the control wires connect to the front.
7. Loosen the left hose clamp on the black rubber air
inlet hose, then pull the left end of the hose away
from the end of the Venturi.
Fig. C5-2 - Gas shutoff valve (typical)
Cleaning the Burner and Heat Exchanger (continued)
Fig. C5-3 - Wiring connector for gas
valve
Fig. C5-4 - Wiring connections for blower
Control Power
Fig. C5-5 - Loosen the left end of the rubber hose
Hose
C5
cont.