Atwood APC45 Встановлення, експлуатація та обслуговування - Сторінка 2
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Друкувати сторінку4. ELECTRICAL REQUIREMENTS. A 120 VAC receptacle needs to
be located within 36 inches of the converter to supply
power. Electrical consideration should also be given to
mounting near the locations of the RV batteries and the
12-volt distribution panel to minimize wiring lengths.
5. ELECTRICAL CONNECTIONS. Be sure to tighten all connections
securely. A loose connection can quickly cause terminals
and wires to overheat. Review unit labels for recommended
terminal torque values.
A. 12 VDC: It is important to use the correct wire gauge for
the specific model selected. As an example the APC-32
is a 32 amp Converter/Charger which would require a 10
AWG wire.
• An 8 AWG copper wire minimum must be connected
from the vehicle chassis to the chassis lug.
• The terminal marked "-" is for the system 12 VDC
negative connection.
• The terminal marked "+" is for the 12 VDC system
positive connection.
• The APC series Converter/Charger is current limiting
by design and therefore the output wiring does not
require overcurrent protection. However, all electrical
connections need to comply with the appropriate
NEC code.
B. 120 VAC Connections: Using the power cord on the
Converter/Charger, connect to the 120 VAC receptacle.
TROUBLESHOOTING
MODELS: APC 32, 45 & 55
Reverse Battery Protection Fuses
Output Terminals
Before replacing converter perform the following
checks:
1. Disconnect the AC power from the coach.
2. Disconnect the wire from the "Positive Output
Terminal".
3. Re-connect the AC power.
4. Using the voltmeter read the DC voltage at the
terminals on the converter.
• If the reading is greater than 13.4 VDC, but less
than 13.8 VDC the converter is operating properly.
Earth Ground/Chassis Lug
6. TEST. Energize the Converter circuit. To test for proper
output power, use a multimeter and measure output voltage
from the positive and negative terminals with no load on the
converter (All DC fuses must be removed.) The voltage
should read 13.6 +/-0.2VDC. Replace fuses and turn on a
load to about 2/3 of the rated capacity of the converter.
Recheck voltage, which should remain approximately the
same as at no load.
7. BATTERY. Connect the positive terminal to a known good
battery. With the converter energized, measure the voltage
at the converter and at the battery. The voltage should be
about the same in both locations. As with any battery it is
important that the fluid level be checked on a regular basis.
When continuously connected to any charging source all
batteries will "Gas" and lose some fluid.
8. HI-POT TESTING. (RV Manufacturing Facilities Only) Do not Hi-
Pot DC wiring with the Converter/Charger connected to the
RV wiring.
Reverse Battery Protection Fuses
Output Terminals
PROBLEM
• 120 VAC not connected to coach.
No 12 VDC Output
• Converter circuit breaker in OFF position.
• Reverse battery fuses blown.
• Internal converter failure.
• Shorted output.
• Fan air flow inadequate.
Converter cycles
on and off
• Internal converter failure.
• Load excessive for rating of converter.
Low Output
• Battery has bad cells.
• Internal converter failure.
2
MODELS: APC 75
Earth Ground/Chassis Lug
SOLUTION