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P/N 240011775 Rev. A [02/02/17]
HEAT EXCHANGER CLEANING INSTRUCTIONS
9.
Loosen nut securing gas valve to mixer assembly. Set
gasket aside for reuse. See Figures 2 and 4.
10.
Remove wire harnesses from blower assembly. See Figure 2.
11.
Remove ground wire and plug from ignition/flame
detection electrode.
12.
240 - Remove four (4) screws from heat exchanger cover.
380 - Remove six (6) screws from heat exchanger cover.
Set cover assembly gently aside where it is secure.
13.
Cover gas line with piece of duct tape.
14.
Examine burner, ignition electrode and burner cover
gasket, clean or replace if necessary.
15.
Cover all components below heat exchanger to prevent
them from getting wet, potentially damaging them.
16.
Place protector for target wall insulation securely at rear of
heat exchanger compartment.
17.
Vacuum all loose debris from heat exchanger.
18.
Brush heat exchanger with wire brush, vacuum accumlated
debris and dust.
19.
Spray entire heat exchanger thoroughly with 16 oz. of
50/50 mix of white vinegar and water. Let set for 10
minutes.
20.
Brush and vacuum entire surface again. Repeat this step
until you have used all solution.
21.
Rinse entire heat exchanger with water thoroughly.
22.
Assure condensate trap is not blocked. Remove any
deposits from trap. Clean with water as necessary.
Figure 2 - 380 - Heat Exchanger - Front of Boiler
Sight Glass
Heat Exchanger 380
Control
Figure 3 - Control Panel and Tab (240 shown)
Control Panel
Tab
Heat Exchanger
Cover
Gas Valve Nut to Mixer
Assembly
Gas Valve
Air Gas Mixer
Blower/Fan
Air Gas Mixer
Ignition/Flame
Detection Electrode
Содержание UCS-380
Страница 1: ...UCS 380 CONDENSING GAS FIRED BOILER ...
Страница 50: ...48 8 ELECTRICAL CONNECTIONS FIGURE 8 16 Wiring Diagram PN 240011662 Rev K 01 31 2020 ...
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