. . . . . . . . . . . . . . . . . . . . . .
2
II.
Component Match-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
III.
Specifications And Unit Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
IV.
Wall Thermostat Operation (7330-324) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
V.
Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
VI.
Electrical Components Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
VII.
Quick Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
VIII.
Component Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
IX.
Electrical Flow Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
X.
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
I. WARNINGS
IMPORTANT NOTICE
These instructions are for the use of qualified individuals
specially trained and experienced in installation of this type
equipment and related system components.
Installation and service personnel are required by some states
to be licensed. PERSONS NOT QUALIFIED SHALL NOT
INSTALL NOR SERVICE THIS EQUIPMENT.
NOTE
The words Shall or Must indicate a requirement which is
essential to satisfactory and safe product performance.
The words Should or May indicate a recommendation or
advice which is not essential and not required but which may
be useful or helpful.
WARNING - SHOCK HAZARD
To prevent the possibility of severe personal injury or
equipment damage due to electrical shock, always be sure
the electrical power source to the appliance is
disconnected during installation.
CAREFULLY FOLLOW ALL INSTRUCTIONS AND
WARNINGS IN THIS BOOKLET TO AVOID DAMAGE
TO THE EQUIPMENT, PERSONAL INJURY OR FIRE.
WARNING
Improper installation may damage equipment, can create
a hazard and will void the warranty.
The use of components not tested in combination with this
unit will void the warranty, may make the equipment in
violation of state codes, may create a hazard and may ruin
the equipment.
II. COMPONENT MATCH-UP
1.
6531B692 Package Air Conditioner.
2.
6531-625 Accessory Kit (Optional) 3
III. SPECIFICATIONS AND UNIT
IDENTIFICATION
PACKAGE AIR CONDITIONER MODEL NUMBER BREAKDOWN
6 5 3 1 - 6 9 2
1 - 12 VDC Control Voltage
2 - 24 VAC Control Voltage
Model Series
8 - No Start Kit
9 - Start Kit Included
Revision
Letter
6 - Panasonic Compressor(s)
7 - Sanyo Compressor(s)
8 - Tecumseh Compressor(s)
SPECIFICATIONS 4
IV. WALL THERMOSTAT OPERATION
FOR 7330-324
THERMOSTAT OPERATION
1.
1°F rated differential
2.
Shrouded contacts
3.
Heat anticipator - .15 - .8 amp (self-adjusting)
Wiring: RC - Control Wiring Supply - A/C
RH or 4 - Control Wiring Supply - Heat
Y - Compressor Relay Coil
G - Fan Relay Coil
W - Furnace 5
V. SEQUENCE OF OPERATIONS 6
VI. ELECTRICAL COMPONENTS
IDENTIFICATION
PART #
DESCRIPTION
1
Control Board
2
Coil Sensor
3
Fan Relay
4
Heater Relay
5
Start Capacitor
6
Heat Element
7
Limit Switch
8
Plug Assembly
ns
Transformer
ns
Run Capacitor
ns
Fan Capacitor 7
VII. QUICK TROUBLESHOOTING TIPS
VIII. COMPONENT CHECKOUT
THINK SAFETY
1.
Power Supply - from Commercial Utility
1)
Wire Size
The power supply to the air conditioner must come through a
circuit breaker or time delay fuse. The power supply must be
20 amperes and 12 AWG wire minimum. Any size larger
wire at any time may be used and should be used if the length
of the wire is over 32 feet.
2)
Color Code
The electric power from the electric service panel should be
delivered through a 3 conductor cable and the Service
Technician should check to be sure the color code is correct.
The electrician probably installed the cable with the colors
according to code, but dont bet your life on it.
a)
The wire with black insulation is the hot
wire and there should be 115 volts
(domestic USA) between it and either of the
other wires. All switches, fuses, circuit breakers,
disconnects, etc. should be in this line.
b)
The wire with the white insulation is the
neutral. There should be 115 volts
(domestic USA) between the neutral and the
hot (black) wire, but there should be 0 volts
between the neutral and the ground (the
green wire or the frame of the air
conditioner). There must be no switches,
fuses, disconnects, etc. of any kind in the
neutral wire.
c)
The third wire may be covered with green
insulation or it may be a bare metal wire. It
is the ground wire. There must be 115 volts
(domestic USA) between this wire and the
hot (black) wire and 0 volts between it and
the neutral (white) wire. The ground wire
must be securely fastened to the air
conditioner cabinet. A green headed screw
is provided for this purpose. 8
3)
Voltage
The voltage (electrical pressure) at the unit should be 115
volts (domestic USA) and all electrical components will
perform best at the correct voltage. However, the voltage will
vary and the air conditioning system will perform
satisfactorily within plus or minus 10% of the rated (115)
voltage (domestic USA). Therefore, the voltage has to be
between 103.5 volts and 126.5 volts.
2.
Power Supply - Generated By On-board Motor
Generator
If the power supply for the recreational vehicle is supplied by
an on-board motor generator, its wiring may be identical to
the commercial power described above.
There are, however, some motor generators on which both the
current carrying leads are insulated from the ground. That is
to say; there is no grounded neutral, so there will be 115 volts
(domestic USA) between the black and white leads, but there
will be 0 volts between either lead and ground.
WARNING: The service technician must keep in mind
when checking to make sure that the power is turned off
check only between the hot (black) lead and the neutral
(white) lead. The black lead could still be hot even though
there is 0 volts between it and ground.
3.
Compressor Motor
The compressor motor is located inside the hermetic
compressor housing and is therefore, not accessible for
service or visual observation in the field. However, the motor
winding condition can be analyzed by using an ohm meter.
Be sure to remove all the leads from the compressor terminals
before making this check.
1.
If the resistance between any two terminals
is 0 ohms, the motor windings are shorted.
2.
If the resistance between any terminal and
the compressor housing is anything but
infinity, the winding is grounded.
4.
Overload Switch
Mounted on the outside of the compressor housing is a two
terminal Overload switch. The switch is connected in series
with the common terminal. If the switch opens, it will cut the
power to the compressor motor. The switch will open as the
result of either or both of two conditions that could be
harmful to the compressor.
1)
High Amperes (Current)
The switch contains a heater which
increases in temperature as the current
increases. The higher temperature warps
the switch and will cause it to open before
the windings reach a dangerous
temperature.
2)
High Temperature (Thermal)
The switch is clamped tightly against the
compressor housing and located close to the
windings. Therefore, as the windings reach
a higher temperature, it takes less current to
cause the switch to open.
As can be seen, the switch is always affected by a
combination of current to the compressor and winding
temperature.
5.
Fan Motor
The air conditioning unit has one double end shaft fan motor.
On one shaft end is mounted a centrifugal or squirrel cage
blower which draws air (return air) out of the recreational
vehicle and blows the conditioned air down into the
recreational vehicle. On the other shaft end is mounted an
axial flow or propellor type fan which circulates outdoor air
through the condenser coil.
An important step in installing a replacement fan motor is to
check the direction of rotation before it is installed. On all
models, the condenser fan pulls the air through the coil.
Fan Motor Check Procedure
If a fan motor refuses to perform properly, it can be checked
in the following manner:
1.
Be sure the motor leads are connected to the proper
points
a)
The black wire from the motor connects to a
black wire inside a wire nut then the black
wire connects through the disconnect plug
to the selector switch. The red wire from
the motor connects to a red wire in a wire
nut then the red wire connects through the
disconnect plug to the selector switch.
b)
The white wire from the motor connects to
a white wire in a wire nut then the white
wire connects through the disconnect plug
to the thermostat. 9
c)
The brown wires from the motor connect to
the fan capacitor.
2.
To check the motor winding resistance, carefully
check the resistance between each of the wires and
ground (preferably a copper refrigerant tube for a
good connection). These readings must be infinity.
Any continuity means the windings are grounded.
If there is a reading of 0 between any two leads, the motor is
shorted and is no good. If there is a reading of infinity
between any two leads, the winding is open and the motor is
no go