632
edits
Changes
Jump to navigation
Jump to search
Line 691:
Line 691: − + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
1989 Wanderlodge Wide Body Pusher (WB) (view source)
Revision as of 08:23, 15 August 2019
, 08:23, 15 August 2019→12 Volt DC Supply System
===12 Volt DC Supply System===
===12 Volt DC Supply System===
Wiring diagrams of the 12 volt supply and distribution system are included in Section X. The 12 volts supplied to all motorhome appliances, outlets and accessories is routed from the batteries through a main 12 volt master switch and routed through busses to the individual branches, or zones, that are serviced from this supply. Circuit breakers are located behind the access panel at the top front left side of the coach, lower front load center (behind removable panel outside front of coach) and at each of the zones. The circuits supplied and fuse or circuit breaker protection at each zone are shown on diagrams included in Section X. A typical load center is shown in figure 4-1. <br />
Wiring diagrams of the 12 volt supply and distribution system are included in Section X.
[[File:1989 WB40 Manual Figure 4-1 - Typical Load Center.png|frameless]]
The 12 volts supplied to all motorhome appliances, outlets and accessories is routed from the batteries through a main 12 volt master switch and routed through busses to the individual branches, or zones, that are serviced from this supply. Circuit breakers are located behind the access panel at the top front left side of the coach, lower front load center (behind removable panel outside front of coach) and at each of the zones. The circuits supplied and fuse or circuit breaker protection at each zone are shown on diagrams included in Section X. A typical load center is shown in figure 4-1.
==== Battery Heaters ====
120 volt ac battery heater pads provide faster engine starts during cold weather conditions by increasing the available cold cranking power. Heaters operate only from the ac supply line via the Battery Heater switched by 120 volt breaker only.
'''''Note''' To avoid premature deterioration of the batteries, heaters should be used only when the temperature is below 32°F.''
==== Battery Chargers ====
The 12 volt coach battery supply , figure 4-2, and the generator battery are maintained fully-charged by either the engine alternator (when engine operates); or by battery charger.
[[File:1989 WB Manual Figure 4-2 Battery Compartment.png|right|frameless]]
Batteries can become discharged because of coach 12 volt loads, while parked, without a 120 volt ac source. For overnight stops this presents no problem , with judicious use of 12v. service, because the engine alternator will recharge the batteries rapidly during the next day's travel. When operating from shoreline or generator power, the batteries obtain the major portion of the charge during "sleeping" time , while coach loads are low, so that the battery charger can "top off" the batteries . If it is planned to leave the coach parked without exterior power for two days or longer turn off the Electronic Master switch in overhead cabinet adjacent to left front load center. This will ensure that there is no drain from the circuits which remain on when the Master (under dash) switch is Off (clock, memory and LPG leak detector).
==== DC Supply Monitors ====
'''The ALT/CHGR METER''', located on the lower dash , indicates the total current flow from the charging source (engine alternator or battery chargers).
'''The BATTERY CHARGE''' ammeter, located on the co-pilot's overhead dash, shows the current flow to or from the coach batteries.
'''The COACH LOAD''' ammeter , also located on the co-pilot's overhead dash, shows the load drawn by coach circuits.
'''ENG. VOLT METER''' , located on lower dash, shows voltage at the batteries .
While in transit, this should reflect an alternator regulated setting of 14v. When parked, with 120v. source supplied, this should read between 12.5 and 14.0v. depending upon load. When parked, without 120v. source, do not permit voltage to drop below 11.5.
After a trip, '''CHARGE''' ammeter may show some discharge reading, even when 120v. source is supplied, if there is a load on the 12v. coach circuits. The Float type battery charger allows a voltage of 12.5-13 when there is a load.
=== AC Supply System ===
[[File:1989 WB40 Manual Figure 4-3 AC Power Selector Switch.png|right|frameless]]
Motorhome ac-operated appliances are supplied from either an external shoreline hookup or from the on-board generator. Selection of shoreline or generator power source is determined by a four-position ac power selector switch located in a floor compartment between the co-pilot's seat and right sidewall as shown in figure 4-4. Set this switch to either '''Gen, Shore 50A, Shore 30A or Off''', depending on the power source availability . Leave this switch in '''Off''' position to completely disconnect the motorhome 120 volt ac circuits normally supplied by these inputs.
<br />
==== Power Line Monitors ====
A dual power line monitor is located on the copilot's overhead dash to monitor the voltage in both legs of the ac shoreline supply (or generator supply). The monitors have a polarity and ground detector circuit to indicate possible electrical hazards due to incorrect hookups. A power line polarity monitor is located in the shoreline/utility box (figure 4-5).
<br />
==== AC Circuit Breaker Panels ====
The main ac circuit breaker panel is located in the bedroom. See figure 4-4.
[[File:1989 WB40 Manual Figure 4-4 - AC Circuity Breaker Panel.png|right|frameless]]
<br />
==== Generator Operation ====
The generator plant has its own 12 volt starting battery so that it can be started independently of the coach 12 volt batteries.
The generator can be started and stopped from any of three locations within the coach: at the driver's instrument panel, at the systems Monitor Panel, or at the bedroom panel. In addition , the generator can also be operated from the controller box in the generator compartment.
To start the generator, push the Generator switch to the Start position and hold until the generator starts, as indicated by the generator On indicator light. '''''Do not hold switch on for longer than 5 seconds at a time!''''' If the generator does not start the first time, wait a minute and try again. Release the switch when the indicator light in the switch glows. The generator may be stopped at any time, by holding the switch to the Stop position until the generator stops (light in switch extinguishes).
In cold weather, it is necessary to activate the cylinder glow plugs before starting. Push StartStop switch to Stop position and hold for 15 to 20 seconds.
It is not advisable to start the generator under a heavy load, especially with the high current demands made by the air conditioners. This may cause hard starting and possible damage to the generator electrical system. It is a good practice to remember to set the Power Selector switch to Off (figure 4-3) before turning on the generator so there will be no electrical load on the line. Also , remember to set the selector switch to '''Gen''' position when the generator is being used; and to reset the switch to either Off or Shore position, as appropriate.
The generator is housed within an electrically operated extendable tray. To open, operate the Out-In Gen. Tray switch in the front outer pilot's side compartment.
'''''Caution The generator tray is heavy and moves in and out with a great deal of force. Keep Hands Off Tray When Operating Switch!'''''
<br />
==== Shoreline Operation (Commercial Power) ====
[[File:1989 WB40 Manual Figure 4-5 Shoreline Utility Compartment .png|right|frameless]]
Shoreline Operation (Commercial Power) Set the power selector switch, figure 4-3, to Off position before the motorhome electrical system and external supply are joined. Caution Your motorhome has been wired in accordance with the National Electrical Code. All 120 volt ac wiring is two-wire service with ground; all 240 volt wiring is three-wire service with ground. If the motorhome is connected to an external hookup which has only a two-wire circuit, ground the third wire on the adapter to the external supply metal junction box or conduit. '''''For personal safety, check the polarity detector indicators on the power line monitors to be sure that lines are properly connected and grounded.'''''
For purposes of safety, observe all precautions when making these connections. First, connect the shoreline to the coach (rotate plug clockwise to assure firm connections) . The coach receptacles are located in the left side utility compartment shown in figure 4-5. Connect the other end of the shoreline to the power source. Set the power selector switch to the appropriate Shore position. Poor grounding or incorrectly-wired receptacles can cause personal harm as well as equipment damage or fire hazards . Check reverse polarity indicator in shoreline /util ity compartment to verify correct polarity and grounding of hookup.
In many instances, the shoreline hookups will not be rated to operate all electrical appliances in your coach. Check with facility personnel to determine the maximum current capability of the hookup . Sometimes , only one air conditioner may be operated . The current ratings for appliances designated for standard or optional (identified by *) usage in your coach are listed in table 4-1 .
<br />
{| class="wikitable"
|+Table 4-1. Electrical Rating for Motorhome Applicances
!Item
!Current Rating (Amperes)
|-
|Air Conditioners 14,500 BTW
|(Start) 19.0
|-
|Water Heater
|10.0
|-
|Television Receiver B&W
|.5
|-
|Television Receiver Color
|1.0
|-
|Dattery Charger (depends on battery condition / load)
|0 to 14.0
|-
|Engine Block Heater
|10.0
|-
|Electric Heater - Interiro Heater
|12.5
|-
|Electric Heater - Battery Heater
|1.2
|-
|Electric Heat Tape
|3 watts/ft
|-
|Microwave Oven
|15.0
|-
|Food Center
|4
|-
|Refrigerator
|2.7
|-
|Ice Maker
|15 Start 2.5 Run
|-
|Washing Machine / Dryer
|14.0
|-
|Instant Hot Water
|6.5
|}
==== Troubleshooting ====
Your coach is designed and tested to make sure the 120v. ac Neutral (white) wire and the Ground (bare copper or green) are not tied together (no continuity). This will prevent any danger of a "hot skin" if the source of power has reversed polarity (red LED lit).
{| class="wikitable"
|+
!Status / Problem
!Cause
!Corrective Action
|-
|Green LEDs
|Normal
|Normal (desired)
|-
|Red LEDs Lit
|Reversed Polarity at power source
|Convince park management to correct or change lot assignment.
|-
|Neither Red or Green LEDs
|No ground connection with park service
|Use jumper lead from ground pin on shore cord to service box
|-
|Power Source (Park) circuit breaker trips
|Reversed polarity in park and coach neutral and ground tied together .
|Use on-board generator until qualified electrician can correct coach problem. (Generator polarity is correct)
|-
|Green AND Red LEDs glow when additional load is turned on (Air Conditioner or Water Heater).
|Poor ground connection at park (floating ground).
|Make sure shoreline plug is fully engaged twist locked (clockwise) at coach.
|}
==== Safeline Alarm ====
Your coach is equipped with a shoreline disconnect alarm , which is located on the upper left auxiliary dash. This device will provide an audible or visual alarm whenever the shoreline is left connected to the coach at the same time that the ignition switch is turned On. This assures that the coach is not inadvertently driven away while still connected to the shoreline hookup.
=== Audio System Warning ===
Low-voltage audio system wiring is run throughout the coach between the stereo radio, speakers , headphone jacks , volume controls and amplifiers. These interconnections are shown on wiring diagrams provided in Section X.
=== Electronic Master Switch ===
Most of the electronic circuits are de-energized when the main Master switch (behind dash) is turned Off (relay action). Circuits that still receive power when the Master switch is off serve the monitor panel, clocks , radio memory, and LPG leakage detector. If coach is to be stored for two days or more without external power, the Electronic Master switch in the front overhead kitchen cabinet on driver's side should be turned off.
=== Battery Jumper Terminals ===
For your convenience and safety when jump starting (usually someone else's vehicle), terminal posts are provided in the upper curb side of the engine compartment. Utilization of these terminal posts is described in Section VIII.
=== Battery Storage in Freezing Weather ===
Batteries that are not kept full-charged must be given protection against freezing. Partially charged batteries will freeze at low temperatures , so batteries must either be left charged or removed from the vehicle and stored in a warm location. The motorhome can be left connected to the shoreline ac supply and the coach battery chargers will keep all batteries charged. Note that even in a warm location it is advisable to keep the batteries charged to prevent deterioration. The six· main coach batteries should be checked for proper electrolyte level: add water, as required. The battery used for the generator is sealed.<br />
==Water Distribution and Drainage==
==Water Distribution and Drainage==
Your motorhome is equipped with a completely self-contained water system which includes piping, heating and drainage facilities similar to those used in home installations. The water supply and distribution system includes three networks: (1) a potable water supply system, which includes the water tanks, pump, air accumulator, pressure switch, water purifier and input supply lines; (2) water heater and interior hot water heating systems; and (3) waste, winterizing, quick drain and sewage drainage systems. Refer to Section X for potable water system and plumbing drainage system piping diagrams.
<br />
<br />