Nav station switches
From MITNA
- (return to Systems Description "12-v DC")
| POSITION | ACTION |
| UP | automatic: starts when a certain level is reached, stops when lower level reached |
| CENTER | off: pump never runs |
| DOWN | manual: pump runs whether or not there's water to pump |
- Notes (above):
- Do not let bilge pump run "dry"
- Pump is NOT fused in Nav Station switch panel, but its fuse is inline, bundled in
wiring above Battery 1, in battery compartment behind nav table seat.
Fuse is type AGC, current 15-amp. - See Systems Description for more mechanical, electrical, and operating info of this pump.
| SWITCH | AMPS | CAPTION | OBSERVED FUNCTION |
|---|---|---|---|
| 11 | 30-A | MAIN | powers (12-V) and protects upper #12-16, and lower #21-26 switches, but not 7 vertical switches |
| 12 | 10-A | NAVIG LIGHTS | powers sidelights and sternlight |
| 13 | 10-A | STEAMING LIGHT | powers steaming light |
| 14 | 10-A | CABIN LIGHTS | powers cabin lights and fans |
| 15 | 10-A | PRESSURE WATER | disconnected (Aug08) |
| 16 | 10-A | BLOWER | blower disconnected (Aug08) |
| SWITCH | AMPS | CAPTION | OBSERVED FUNCTION |
|---|---|---|---|
| 21 | ? | SUMP PUMP | not connected |
| 22 | ? | FORE DECK ILLUM | powers foredeck light |
| 23 | ? | NAVIG INSTR | powers bulkhead nav instruments (as of Aug08, only depthmeter connected) |
| 24 | ? | MASTHEAD LIGHT | powers tricolor light |
| 25 | ? | RADIO | disconnected (Aug08) |
| 26 | ? | ACCESSORY | powers companionway 12v socket & nav station pigtail 12v socket |
| SWITCH | AMPS | CAPTION | OBSERVED FUNCTION |
|---|---|---|---|
| 31 | SW | no caption | not connected |
| 32 | 25-A | Auto Pilot | unknown |
| 33 | SW | REFRIGERATION | unknown |
| 34 | SW | STROBE | powers strobe light |
| 35 | SW | ANCHOR | powers anchor light |
| 36 | 05-A | PHONE | not connected |
| 37 | 15-A | RADAR | not connected |
| - | -- | NAV/COM | no switch |
NOTE: "SW" in the table above indicates that we observed (Apr08) no marking on these switch units
to indicate that they have any circuit-breaking function.
NOTE: The 12-volt feed to these seven vertical switches (31-37) are NOT protected against over-current
by the 'MAIN' circuit breaker on the top horizontal row of switches, nor by any other known breaker or fuse.
However, the ammeter DOES display these switches' current loadings
Right-hand sub-panel (NAV instruments):
All wiring to this sub-panel has been disconnected (Apr08)
