ASTRO LS10 Series, Руководство пользователя

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8.3 Tank Heater Replacement
1. Before considering replacement, check each heater with amp
probe (system power on) or ohmmeter (system power off,
wires disconnected). Refer to electrical schematic, located in
back of melt unit.
2. To measure heater resistance, switch off system power and
disconnect electrical power from external source.
3. Per illustration below, open control panel and remove tank
access panel [1].
4. Determine resistance of each individual heater [2]. Refer to
Appendix A for Component Resistance Tables.
5. If heater requires replacement, disconnect wires of defective
heater.
6. Pull heater out of bore using pliers. If heater does not come
out easily, drive out using a 6.35 mm (0.25 in.) diameter rod
inserted in knockout holes in back of tank base.
7. Apply a coating of heat release and transfer agent to new
heater and slide it into tank heater bore from the front.
8. Route heater lead wires through electrical panel, and reconnect
heater wires in original locations. See electrical schematic
included with melt unit.
9. Replace tank access panel.
10. Close and fasten control panel.
1
2
26 LS10 and LS20 19600-121
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