Thetford EV0061 Series - Manual (Page 13)

Installation and Owner’s Manual 13
Connect the Electrical Components
Electrical current necessary:
AC Operation DE0041and DE0061 models
120 volts AC voltage
(108 volts min. - 132 volts max.)
59 hertz min. - 61 hertz max.
AC Operation EV0041and EV0061 models
220 volts AC voltage
(205 volts min. - 253 volts max.)
49 hertz min. - 51 hertz max.
DC Operation DE / EV0041 and DE/ EV0061 models
12 volts DC voltage
(10.2 volts min. - 15.4 volts max.)
24 volts DC voltage
(21.2 volts min. - 30.5 volts max.)
This refrigerator operates on both AC and DC electrical
sources. Operation out of these limits may damage the
refrigerator’s electrical circuit parts and will void the warranty.
Connect the 120 / 220 volts AC supply:
WARNING: Connect the AC power cord only to a
grounded three-prong receptacle. Do not remove the
round ground prong from the power cord. Do not use a
two-prong adapter or an extension cord. Operation of the
refrigerator without correct ground can cause dangerous
electrical shock or death if you are touching the metal
parts of the refrigerator.
Put the AC power cord [24] (See Art01655 and Art01659) into a
grounded three-prong receptacle:
- Make sure the AC power to the receptacle goes through a
fuse or a circuit breaker which will protect the vehicle when
an outside power source is used.
- If the AC power to the receptacle is supplied by an on-board
generator, make sure that both the voltage and the fre-
quency are within the specified limits (See the “Electrical
current necessary” section).
Connect the 12/24 volts DC supply:
To reduce the risk of electrical interference from other DC
appliances and induction from voltage spikes:
- The refrigerator must have an independent 12/24 volt DC
supply.
- Route the DC power supply wires including the fuses
directly from the battery to the refrigerator.
- Twist the DC power supply wires from the battery to the
refrigerator.
CAUTION: Do not use a converter or a battery charger to
supply the DC power to the refrigerator. These devices
do not supply filtered DC power. When using a converter
or a battery charger, make sure a battery is in-line
between them and the refrigerator.
As the distance from the vehicle battery to the refrigerator
increases, the correct AWG wire size also increases. If the wire
size is too small for the distance, a voltage drop occurs. The
voltage drop decreases the cooling performance of the refrig-
erator.
1. Find the minimum wire size to use:
WARNING: Use only the recommended wire size.
- Measure the distance from the vehicle battery to the
refrigerator:
- If the distance is 0 - 12 feet, use #14 AWG min. wire
size.
- If the distance is 12-20 feet, use #12 AWG min. wire
size.
- If the distance is over 20 feet, use #10 AWG min. wire
size.
2. To protect the DC power supply wiring, install a 15 amp fuse
or circuit breaker in the positive (+) DC power supply wire as
close to the battery as possible.
- There is a 10 amp automotive fuse in the DC circuit at the
refrigerator junction box.
3. Connect the DC power supply wires (See Art01655 and
Art01659):
CAUTION: If the DC power supply leads are attached
incorrectly, damage to the refrigerator power supply will
occur.
- Connect the positive (+) DC power supply lead to the red
wire [25] of the refrigerator.
- Connect the negative (-) DC power supply lead to the black
wire [26] of the refrigerator.
- Make sure that:
- Each DC power supply lead is attached to the correct
polarity wire of the refrigerator power supply.
- The chassis or the vehicle frame is not used as one of
the conductors.