Home > Coleman > Coleman 9420-381 Digital Wall Thermostat Instruction Manual

Coleman 9420-381 Digital Wall Thermostat Instruction Manual

8

INSTALLATION, OPERATION & APPLICATION GUIDE FOR DIGITAL WALL

THERMOSTAT 9420*381 & 9420*382

Features

The thermostat wiring is factory installed

by the OEM (Original Equipment

Manufacturer). RV Products suggests the

thermostat wiring be a minimum of 20

gauge. The thermostat is intended for use

with a 12 VDC control circuit that does not

exceed 2 amps.

The thermostat is equipped with a self-

reseꢁng PTC fuse located in the

thermostat. The fuse is designed to “open”

if the circuit is mis-wired or if there is a

short in the system.

If the PTC fuse conꢀnues to “open”, the

fault must be located and corrected.

The thermostat includes a mounꢀng plate,

2 screws and 2 wall anchors.

An oversized accessory wall plate

(9420*3501) is available for purchase if

needed.

Thermostat and Room Temperature

Sensor Locaꢀon

WARNING!

• An internal temperature sensor on the

thermostat can act as the room sensor.

• Alternaꢀvely, a remote temperature

sensor can be connected to the

thermostat to the SENS connectors. The

thermostat will show “REMOTE” at the

top of the display. This situaꢀon would

allow the thermostat to be located

virtually anywhere in the coach, as long

as the user can access the thermostat to

operate it.

This appliance is not intended for use by

young children or inﬁrm persons unless they

have been adequately supervised by a

responsible person to ensure they can use the

appliance safely.

CAUTION!

This thermostat should be installed by trained

technicians only. Adhere to all local and

naꢀonal codes and ordinances.

DISCONNECT ALL POWER TO THE SYSTEM

BEFORE INSTALLING, REMOVING, OR

CLEANING.

The Remote Room Sensors available are

8330-5191 (white) and 8330-3101

(black).

1980R189 (08-24-23)

VIEW FULL SCREEN PDF MANUAL

General	Details
Name	Coleman 9420-381 Digital Wall Thermostat Instruction Manual
Make	Coleman
Language	English
Filetype	PDF (Download)
File size	0.19 MB

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Coleman 9420-381 Manual: Questions and Answers

Where are the dip switches located on the Coleman 9420-381?

Access them from the rear of the thermostat when the back plate is not attached. Instruction Manual, p. 1

Can I use a remote temperature sensor instead of the internal one?

Yes. A remote sensor connects to the SENS connectors and the display will show "REMOTE". This allows the thermostat to be located virtually anywhere in the coach as long as you can access it to operate it. Available sensors are 8330-5191 (white) and 8330-3101 (black). Instruction Manual, p. 1

What is the minimum wire gauge for the Coleman 9420-381?

20 gauge. The thermostat is designed for a 12 VDC control circuit not exceeding 2 amps. Instruction Manual, p. 1

How do I change the temperature setting on the Coleman 9420-381?

Rotate the knob clockwise to increase or counterclockwise to decrease the set point temperature, then press the knob to accept.

Ensure the thermostat is in any HVAC mode other than 'Off'.
Rotate the knob. The display will blink the set point temperature.
Turn clockwise to increase or counterclockwise to decrease the temperature.
Press the knob when the desired set point is displayed.
The display will revert to normal and energize the needed appliance. Instruction Manual, p. 6

What do the buttons and knob on the Coleman 9420-381 do?

Control	Function
Rotary Knob	Switch between selections and temperature settings.
Knob Press	Select and accept desired setting.
Knob Hold (4 seconds)	Change temperature units between Fahrenheit and Celsius.
Knob Hold (12 seconds)	Manually reboot the thermostat.

Instruction Manual, p. 7

What does 'Elec' flashing on the Coleman 9420-381 display mean?

Gas heat is running in conjunction with electric heat. This occurs when the temperature drops 5°F below the set point in electric heating mode. Instruction Manual, p. 7

What do the display segments show on the Coleman 9420-381?

Display Element	Meaning
Remote Sensor Installed	Thermostat is controlled by a remote temperature sensor.
HVAC Mode	Current mode of HVAC operation selected by user.
Fan State	Indicates when the fan is operating.
Current Temperature	Room temperature at the sensor location.
HVAC State	Shows which heating or cooling system is running.

Instruction Manual, p. 6