INSTALLATION, OPERATION &
APPLICATION GUIDE
COOL ONLY
• 9430*339*
• 9430*340*
• 9430*342*
HEAT/COOL
• 9430*335*
• 9430*336*
• 9430*337*
• 9430*338*
Caution
This thermostat should be installed by trained technicians only.
Adhere to all local and national codes and ordinances. Disconnect
all power to the system before installing, removing, or cleaning.
The thermostat wiring is factory installed by the OEM (Original
Equipment Manufacturer). RV Products suggests the thermostat
wiring be a minimum of 18 gauge. The thermostat is intended for
use with a 12 VDC control circuit that does not exceed 1 amp.
The thermostat is equipped with a replaceable 2 amp fuse located
on the base of the thermostat. The fuse is designed to “open” if
the circuit is mis-wired or if there is a short in the system. Before
replacing the fuse, the cause of the failure must be located and
corrected.
Application
Temperature
Mode
Range
°F °C
Cooling (set) 33°F to 99°F 1°C to 37°C
Heating (set) 33°F to 99°F 1°C to 37°C
Operation
The display indicates the mode and the room temperature. When
the mode button is pressed once, the thermostat will wake and,
if your thermostat is equipped with a backlight, the backlight will
illuminate. When the mode button is pressed again, the
mode will change. Press the or button to wake the thermostat,
the set temperature will display and the mode will ash. Press the
or button again to change the set temperature. The thermostat
will return to sleep mode after 5 seconds without a button pressed.
There is a three minute anti-short cycle for cooling. After the cooling
system has been de-energized, the system will not energize again
for three minutes; this is to protect your compressor. To bypass the
anti-short cycle, change the mode to OFF.
Note: Operating your cooling system when the outdoor
temperature is below 50°F can cause damage to your
cooling equipment.
A remote sensor may be used with thermostat 9430*335*. When a
remote sensor is installed, the thermostat will use only the remote
sensor for displayed and operational temperatures.
Wiring Diagrams
08-03-17
Installation
A. THERMOSTAT LOCATION
This thermostat is a sensitive instrument. For accurate temperature
control and comfort, the following considerations should be taken
into account:
1. Locate the thermostat on an inside wall about ve feet above the
oor. Pick a dry area where air circulation is good.
2. Do not install thermostat where there are unusual heating
conditions, such as direct sunlight, near heat producing
appliances (televisions, radio, wall lamp, etc.), or a furnace or air
conditioner supply register.
B. INSTALLING THE THERMOSTAT
1. Place mounting screw template against the wall
where thermostat will be mounted.
2. Using supplied screws, mount the template to
the wall.
3. Remove plastic from between mounting screws.
4. Connect thermostat wiring to motorcoach wiring.
5. Place thermostat on mounting screws and gently
push the thermostat down to lock the thermostat
onto mounting screws.
6. Turn on power to the thermostat.
ELECTRICAL SHOCK HAZARD – Turn off power at the
main service panel by removing the fuse or switching
the appropriate circuit breaker to the Off position before
removing the existing thermostat.
Remote Sensor – 9430*335*, 9430*342*
2
1
SENS
Green/White Room Sensor
Cap Housing
Amp P/N: 1-480699-0
From Thermostat
Green/White
SENS
Room Sensor F
Green
Gray
2
3
1
4
Fan Hi
Fan Lo
M
Plug Housing
Amp P/N: 1-480702-0
Pin Terminal x2
Amp P/N: 350218-1
F
Cap Housing
Amp P/N: 1-480703-0
Socket Terminal x4
Amp P/N: 350536-1
Y
R
B
Red
Blue
Yellow
2
3
1
4
+12 VDC
-12 VDC
Compressor
GH
GL
From Cool Only Thermostat
Cool Only – 9430*339*, 9430*340*, 9430*342*
Green
Gray
2
3
1
4
Fan Hi
Fan Lo
M
Plug Housing
Amp P/N: 1-480702-0
Pin Terminal x2
Amp P/N: 350218-1
F
Cap Housing
Amp P/N: 1-480703-0
Socket Terminal x4
Amp P/N: 350536-1
Y
R
B
W
White
Red
Blue
Yellow
2
3
1
4
Furnace
+12 VDC
-12 VDC
Compressor
GH
GL
From Heat and Cool Thermostat
Heat and Cool – 9430*335*, 9430*336*
Green
Gray
Fan Hi
Fan Lo
Y
R
B
W
White
Red
Blue
Yellow
Furnace
+12 VDC
-12 VDC
Compressor
GH
GL
From Heat and Cool Thermostat
Heat and Cool – 9430*337*, 9430*338*
