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Maintenance
16 309524N
Maintenance
Flushing
Clogged fluid passages are difficult to clean and reduce
heating efficiency, flow rate, and pressure. Flush fre-
quently, including whenever system is not in use.
1. Follow Pressure Relief Procedure, page 14.
2. Ensure main power is off and heater is cool before
flushing. Use a compatible solvent, and follow flush-
ing instructions in your fluid supply and spray gun
manual. Do not turn on heater until fluid lines are
clear of solvent.
Draining Heater
(FIG. 12)
1. Follow Pressure Relief Procedure, page 14.
2. Remove heater inlet and outlet fittings. Have a con-
tainer ready to catch the fluid.
Unclogging Fluid Passages
(FIG. 13)
1. Drain the heater.
2. Remove the heater block (3) from the heater hous-
ing. See Heater Block, page 20.
3. Pour a high strength, compatible solvent into the
heater tube to soften the clog.
4. Flush out the clog.
5. Clean all passages thoroughly before reassembling.
WARNING
Read warnings, pages 4 and 5. Make sure the main
power is off and heater is cool before doing mainte-
nance.
F
IG. 12: Draining Heater
05550-524
Outlet
Inlet
FIG. 13: Unclogging Fluid Passages
05551-524
3
Pour in solvent