Trinity Lx
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Installation and Operation Instructions
Lx – WH Series
80
Figure 17-1(a) Lx200WH-Lx400WH
Figure 17-1(b) Lx500WH-Lx800WH
Control Panel Fuse Locations
Control Panel Fuse Location
Fuses
There are three (3) fuses associated with the Trinity Lx200WH-Lx400WH controller but only one (1) with the
Lx500WH-Lx800WH controller. Check these fuses before replacing the controller or any other electrical
component; if the fuse is blown, it will prevent the protected device(s) from functioning.
To check, and if necessary replace, the fuses:
Remove all 120VAC power from the water heater. Be careful to check that the unit is not powered from
more than one source e.g. a UPS (uninterruptible power supply).
Remove the front cover.
On models Lx200WH-Lx400WH the control panel is located below the heat exchanger. Fuses "A" and "B"
are accessible by removing the spring-loaded knurled knob of their respective holders. Push the knob
toward the panel, and twist approximately 1/4 turn counter-clockwise.
To access Fuse "C", remove the two #10 pan-head Phillips screws and lift the top cover from the panel. The
auto blade type fuse is installed in an "inline" style fuse holder.
On models Lx500WH-Lx800WH, the control panel is located above the heat exchanger toward the back of
the unit. Fuse "A" is accessible by removing the spring-loaded knurled knob from its holder. Push the knob
toward the panel, and twist approximately 1/4 turn counter-clockwise.
After inspecting and if necessary replacing fuses, replace the panel cover and front cover. Restore power to the
water heater and confirm proper operation.
Only replace fuses with identical parts, see Figures 17-1(a) and (b). Failure to follow
this warning may result in component failure, fire, property damage, serious injury or
death.
Fuse “C” ATO
2A 32V Auto
Blade Type
Fuse “A” 3AG
7A 250V
Fast-Acting
Fuse “B” 3AG
7A 250V
Fast-Acting
Fuse “A” 3AG
7A 250V
Fast-Acting