Difference between revisions of "Nav station switches"

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m (renum switches to agree wiring dgm)
(corrected info for nav switches)
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!width="150pt" |CAPTION || OBSERVED FUNCTION   
 
!width="150pt" |CAPTION || OBSERVED FUNCTION   
 
|-
 
|-
−
|11 || 30-A || MAIN            || powers (12-V) and protects upper #2-6, and <br> lower #1-6 switches, but not 7 vertical switches
+
|11 || 30-A || MAIN            || powers (12-V) and protects upper #12-16, and <br> lower #21-26 switches, but not 7 vertical switches
 
|-
 
|-
−
|12 || 10-A || NAVIG LIGHTS    || believe lights that Ted fixed (Aug-Sep07)<br>i.e. sidelights at top of topsides and sternlight           
+
|12 || 10-A || NAVIG LIGHTS    || powers sidelights and sternlight           
 
|-
 
|-
−
|13 || 10-A || STEAMING LIGHT  || blows #3 CB after drawing > 50-A            
+
|13 || 10-A || STEAMING LIGHT  || powers steaming light            
 
|-
 
|-
−
|14 || 10-A || CABIN LIGHTS    || not observed (Sep07)          
+
|14 || 10-A || CABIN LIGHTS    || powers cabin lights and fans          
 
|-
 
|-
−
|15 || 10-A || PRESSURE WATER  || shows c. 5-A when pump runs            
+
|15 || 10-A || PRESSURE WATER  || disconnected (Aug08)            
 
|-
 
|-
−
|16 || 10-A || BLOWER          || (blower probably disconnected (Sep07))           
+
|16 || 10-A || BLOWER          || blower disconnected (Aug08)           
 
|}
 
|}
  
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!width="150pt" |CAPTION || OBSERVED FUNCTION   
 
!width="150pt" |CAPTION || OBSERVED FUNCTION   
 
|-
 
|-
−
|21 || sw? || SUMP PUMP      || source bussed to 12-V, but switched conn isn't wired
+
|21 || ? || SUMP PUMP      || not connected
 
|-
 
|-
−
|22 || sw? || FORE DECK ILLUM || blows CB (Sep07)        
+
|22 || ? || FORE DECK ILLUM || powers foredeck light        
 
|-
 
|-
−
|23 || sw? || NAVIG INSTR    || no observed change<br>* activates 12-V DC to Datamarine instrument sub-panel<br>* also powers 2-AMP inline fuse with cut out-going wires    
+
|23 || ? || NAVIG INSTR    || powers bulkhead nav instruments (as of Aug08, only depthmeter connected)    
 
|-
 
|-
−
|24 || sw? || MASTHEAD LIGHT  || shows approx 2-amp, don't know what light goes on          
+
|24 || ? || MASTHEAD LIGHT  || powers tricolor light           
 
|-
 
|-
−
|25 || sw? || RADIO          || activates fixed VHF transciever power            
+
|25 || ? || RADIO          || disconnected (Aug08)            
 
|-
 
|-
−
|26 || sw? || ACCESSORY      || probably works, but passageway socket disconnected?)          
+
|26 || ? || ACCESSORY      || powers companionway 12v socket & nav station pigtail 12v socket           
 
|}
 
|}
−
Note: in AMPS column above of the six switches above, "sw?" means that (Apr08) we saw <u>no</u> amperage rating, <br> which <u>probably</u> implies that they are switch-only devices, without a circuit breaker.
+
 
−
In this case, they count on <br>the "''''MAIN''''" (leftmost upper switch #1) for over-current protection. 
+
  
 
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{| border="1" cellspacing="0" style="margin: 10px"

Revision as of 09:00, 23 August 2008

(return to Systems Description "12-v DC")


Bilge pump 3-way toggle switch (switch 01)
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"; when in DOWN position, turn switch to CENTER or UP
      when higher-pitch sound from pump indicates all water is pumped out.
    • 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.


Upper horizontal row of 6 toggle switches (up is ON)
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)


Lower horizontal row of 6 switches (up is ON)
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


Vertical column of 7 switches (right is ON)
SWITCH AMPS CAPTION OBSERVED FUNCTION
31 SW no caption not wired up
32 25-A Auto Pilot unknown
33 SW REFRIGERATION unknown
34 SW STROBE unknown
35 SW ANCHOR unknown
36 05-A PHONE unknown (note: there's a "phone" shore connection on port quarter)
37 15-A RADAR activates RADAR power (approx 3-amp warm-up)
(wire cut Apr08; RADAR removed to bench-test)
- -- NAV/COM no switch - switch handle hole plugged

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): 

   This unit controls meter illumination intensity in Nav instruments; 
   it probably also control powering them on and off;
   it also has a distance log, probably driven by a signal from e.g. knotmeter.  
   (ThomS has notes on wiring, only in markup form on a copy of panel wiring dgm.)
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