DOMETIC 3316420.XXX User Manual

Dometic 3316420.XXX Thermostat Manual

This Bluetooth® Capacitive Touch thermostat (hereinafter referred to as “CT thermostat” or “product”) is de- signed and intended for use in a Recreational Vehicle (hereinafter referred to as "RV"). Use these instructions to ensure correct installation, function, and operation of product.

Dometic Corporation reserves the right to modify appearances and specifications without notice

FCC and IC Regulations

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation of the device. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio inter- ference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.

Dometic 3316420.XXX Features

• Capacitive Touch Interface
• Bluetooth® Connection
• Blue LED Backlight
• Liquid Crystal Display (LCD)
• Auto Fan
• Indoor Temperature Display
• Air Conditioner - Provides additional indoor air circulation during furnace operation

Dometic 3316420.XXX System Initialization

An installer needs to perform a system initialization.

1. Ensure the CT thermostat is Off.
2. Simultaneously press and hold the Up button and the Mode button for three seconds. LCD will show “- -”. This completes system initialization.
3. Set the furnace On/Off temperature differential. See "B. Furnace Mode" on page 22

Dometic 3316420.XXX Factory Preset Settings

The CT thermostat is pre-programmed to these settings: 

Quick Reference

See FIG. 1 for control button quick reference. 

CT Thermostat Programming and Operation

Turning The CT Thermostat On And Off

1. Press the Mode button to turn the CT thermostat on. See FIG. 1.
2. To turn the CT thermostat off, continue pressing the Mode button until “Off” appears onm the LCD. After 15 seconds of illumination, the LCD turns off.

Dependent upon the systems installed, the Mode options you will scroll through are Off, Fan, Cool, Furnace, Heat Pump, and Heat Strip.

Switching Between ºF and ºC

1. Simultaneously press the Up and Down buttons to toggle the LCD between °F and °C. See FIG. 2

Displaying The Inside Temperature

1. Ensure the CT thermostat is in Off mode. If it is not, press the / Mode button until you reach Off mode.
2. Press either the Up ( ) or Down ( ) button to display the temperature. See FIG. 3

Setting The Fan Speed (Fan Mode)

Fan mode provides three speed settings:

• Low – Fan operates continuously at a low speed.
• High – Fan operates continuously at a high speed.
• Auto – Fan and compressor cycle on and off and the speed varies based on room temperature and temperature setting on the CT thermostat. When the temperature difference between the room and the CT thermostat is:
• >5 °F (-15 °C), the fan operates at a high speed
• <4 °F (-15.5 °C), the fan operates at low speed.

1. Press the Mode button until the Fan icon appears.
2. Press the Up or Down button until the desired fan speed appears on the LCD. See FIG. 4 

Setting The Temperature

The possible modes for setting the temperature are Cool, Furnace, Heat Pump, and Heat Strip. See "Mode Description" on page 22 for more information on these mode settings.

1. Press the / Mode button until you see your desired mode on the LCD.
2. Press the Up and Down buttons until you reach your desired temperature setting. The maximum temperature setting is 90 °F (32 °C). The minimum for heating is 40 °F (4.4 °C mand 55 °F (13 °C) for cooling. See FIG. 5.

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