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MPC 5000 FUSES
The CHECK FUSE alarm indicates that one of the seven fuses on the MPC-5000 Printed Circuit
Board has blown. These fuses are the flat, color-coded, small ATM automotive style. The dis-
play will indicate by number which fuse has blown, and the fuse bases are numbered on the
board. Before replacing the fuse, find and repair the problem that caused the fuse to blow.
The fuses supply power to the terminal strip on the PCB as follows:
Fuse F1 5A:
PVLV Priming valve solenoid
FWV Fresh water flush valve solenoid
Fuse F2 5A:
AUX 3. Optional boost pump
Fuse F3 10A:
PMP1, Feed pump number 1
Fuse F4 5A:
DVLV, Diversion valve solenoid
Fuse F5 10A:
PMP 2, Feed pump number 2 (not used on Ventura models)
Fuse F6 10A:
AUX 1, Powered when display illuminated
AUX 2, Powered during run cycle
Fuse F7 5A:
STER, Powered when feed pump running. Optional ultraviolet sterilizer.
Before replacing fuses, shut off the main power supplies. Remove the lead wire that goes to
the affected component from the terminal strip. Using a digital ohmmeter, check the circuits
for dead shorts. You should see about 10 ohms or more on the solenoid valve circuits.
On Ventura 150 and 200 systems using Shurflo feed pumps, the pumps are run directly from
the board. The Shurflo pumps must be disconnected from the MPC-printed circuit board and
tested for current draw using an ammeter or independent circuit breaker.
MCP 5000 Electrical Specifications
Operating voltage limits:
11.6 – 13.8 for 12-volt systems, 23.2 – 27.6 for 24-volt systems
Controller power consumption, mAmp – 700 maximum
Outputs:
BUZZ – 100 mA DC Piezo buzzer.
PVLV – 2.5 Amp DC priming valve solenoid.
FWV – 2.5 Amp DC fresh water valve solenoid.
AUX3 – 5 Amp DC auxiliary output.
PMP1 – 15 Amp DC auxiliary water feed pump.
DVLV – 10 Amp DC diversion valve solenoid, modulated at 17% duty cy-
cle after 2.5 seconds to reduce power consumption.
PMP2 - 15 Amp DC main water feed pump.
AUX1 - 2.5 Amp DC auxiliary output.
AUX2 – 2.5 Amp DC auxiliary output.
STER – 5 Amp DC sterilizer.
Summary of Contents for Ventura 150T MPC
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Page 7: ...7 Installation ...
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Page 29: ...29 Operation ...
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Page 39: ...39 Maintenance Storage and Troubleshooting ...
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Page 61: ...61 MPC 5000 Programming and Controls ...
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Page 75: ...75 Exploded Views and Part Numbers ...
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Page 84: ...84 Parts HP CYL 3 4R ...
Page 85: ...85 PL MTS 3 8X1 2S HP CYL SST HP CYL CCA SO HPP ECCB HP CYL EC HP CYL R HP CYL PT Parts ...
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