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Repair
8. To verifyvoltage on the secondaryleads of the
transformer, measure between the terminals 2
and 4 on CB20. This will verifythe circuit breaker
is working properly.
Model
Secondary Voltage
310 ft
90 Vac*
210 ft
62 Vac*
* For 240 Vac line voltage.
9. See the Diagnostic Run Screen on the ADM. The
Diagnostic Run Screen displays the incoming
(240 Vac) to the HPTCM (TCM-H) “Hose Voltage”
and the hose current. The diagnostic screen will
show if the circuit breaker has been tripped for
the incoming power to the HPTCM.
Replace Transformer
1. Perform
Shutdown, page 49
.
2. Open Reactor cabinet.
3. Remove bolts holding transformer (226) to
cabinet floor.
4. Disconnect the transformer wires. See
Reactor Cabinet Wiring Diagram, page 142
5. Remove transformer (226) from cabinet.
6. Install new transformer (226) in reverse order.
Replace Heat Exchangers
1. If a wall is installed between the generator and
the proportioner, remove the proportioner from
the pallet. See
Remove Proportioner, page 88
.
2. Perform
Flushing, page 47
.
3. Perform
Shutdown, page 49
.
4. Perform
Drain Coolant, page 50
.
5. For proportioner heat exchangers:
a. Remove fuel tank. See
Remove Fuel Tank, page 81
.
b. Disconnect both RTD connectors (284). See
Replace Proportioner RTD, page 76
.
c. Disconnect A and B material lines from
swivel fittings (297).
Proportioner Heat Exchangers
Figure 28
d. Disconnect hose clamps (37, 239) from heat
exchanger assembly(241).
e. Remove four nuts (249) and the heat
exchanger assembly(241). Pull heat
exchanger assemblyout of coolant hoses.
f. Install a new heat exchanger assembly
(241) byfollowing the removal steps in
reverse order. Orient control valves as
shown. Continue to next step to remove heat
exchangers (802) or (803).
74
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