Johnson Controls T701DFN-1 - User Manual

Owner’s Manual
Remote sensor ready
Self-prompting adjustment
Auto 2-pipe changeover
when used with accessory
changeover sensor
Dry contact equipped
Backlit display
One For All
TM
works with
most all fan coil systems
Electric heat ready
Non-volatile memory
Dual setpoint with
adjustable deadband
Keypad lockout
Configurable display
Display either F or C
Terminals on backplate
2 or 4 pipe systems
Non-Programmable
Thermostat
model T701DFN-1
Thermostat
Fan Coil

Johnson Controls T701DFN-1 Specifications

General

Thermostat Type	Digital
Voltage	24 VAC
Programmability	Non-programmable
Stages	1 Heat / 1 Cool
Display	LCD
Mounting	Wall
Fan Control	Auto / On
Backlight	Yes
Communication	Wired
Temperature Range	40°F to 90°F

Summary

Emissions Compliance

United States FCC Compliance

FCC rules statement for commercial environments and potential interference.

Canadian Equipment Regulations

Compliance with Canadian regulations for interference-causing equipment.

Front Panel Overview

Liquid Crystal Display

Describes the main display showing temperature and operating status.

Control Buttons

Explains the function of Mode, Up/Down, and Fan/Override buttons.

Heat or Cool Indicator

Details the indicator light for heating (red) and cooling (green) modes.

Display Information

Mode Indicators

Explains indicators for HEAT, COOL, AUTO, and OFF operational modes.

Temperature Displays

Describes how the current room and desired set temperatures are shown.

Status Icons

Details icons for fan operation, locked keypad, outside sensor, and unoccupied status.

Selecting Operating Modes

4-Pipe System Modes

How to select Heating, Cooling, Auto, or Off modes for 4-pipe systems.

2-Pipe System Modes

How to select Heating, Cooling, or Off modes for 2-pipe systems.

2-Pipe Auto Changeover

Automatic heat/cool selection based on room temperature demand for 2-pipe systems.

Basic Operation

Adjusting Temperature Setpoints

How to adjust both heat and cool setpoints simultaneously in Auto/Program mode.

Fan Operation Control

Explains continuous fan operation at different speeds and auto mode.

Advanced Setup

Display Settings Configuration

Configuring display blanking and single/dual setpoint display.

System Type and 2-Pipe Operation

Selecting system type (2/4-pipe) and 2-pipe operational modes.

Deadband and Differential Settings

Adjusting temperature swing for stages and minimum heat/cool differential.

Unoccupied Setpoints

Setting cooling and heating temperatures for unoccupied periods.

Advanced Setup Table

A summary table of all advanced setup options, ranges, and defaults.

Advanced Features and Operation

Temperature Sensor Calibration

Procedure for calibrating the temperature sensor, recommended for technicians.

Deadband Operation

Detailed explanation of how deadbands control fan speeds across stages.

Dry Contact Switch Functionality

Using external devices to force unoccupied mode via dry contact.

Factory Defaults Reset

Instructions for resetting all programming to factory default settings.

Fan Operation Modes

Explains the four different modes of fan operation (Auto, continuous speeds).

Minimal Display Setting

Configures the display to show minimal information, appearing on button press.

Heat;Cool Differential and Keypad Lockout

Managing temperature differentials and locking the keypad for security.

Sensor Usage (Outside and Duct)

How to view and connect optional outside and duct sensors for enhanced readings.

Auxiliary Control and Phasing Problems

Addressing potential phasing issues with multiple HVAC units and auxiliary controls.