Johnson Controls T701DFN-1, T701DFP-1 Installation Instructions Manual

2 or 4 pipe systems

Non-Programmable
Thermostat

model T701DFN-1

Fan Coil

Thermostat

Remote sensor ready

Self-prompting adjustment

Auto 2-pipe changeover

when used with accessory
changeover sensor

Dry contact equipped

Backlit display

One For All

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

TM

works with

Installation
Instructions

TABLE OF CONTENTS

Step #1: Preparation

Step #2: Applications

Step #3: Wire Connections

Step #4: Test Operation

Troubleshooting

Sample Wiring Diagram

CAUTION

Follow Installation Instructions
carefully. Disconnect Power
to the Heater/Air Conditioner
before removing the old therm-

WARNING

ostat and installing the new
thermostat.

IMPORTANT: The T701DFN-1 and T701DFP-1 Series Thermostat

IMPORTANT: The T701DFN-1 and T701DFP-1 Series Thermostat

Controllers are intended to provide an input to equipment under

Controllers are intended to provide an input to equipment under
normal operating conditions. Where failure or malfunction of the

normal operating conditions. Where failure or malfunction of the
thermostat controller could lead to personal injury or property damage

thermostat controller could lead to personal injury or property damage
to the controlled equipment or other property, additional precautions

to the controlled equipment or other property, additional precautions
must be designed into the control system. Incorporate and maintain

must be designed into the control system. Incorporate and maintain
other devices, such as supervisory or alarm systems or safety or limit

other devices, such as supervisory or alarm systems or safety or limit
controls, intended to warn or protect against failure or malfunction of

controls, intended to warn or protect against failure or malfunction of
the thermostat controller.

the thermostat controller.

2

3

4

6

11
14

P/N T701DFN-1

Copyright 2010, All Rights Reserved

Page 1

STEP #1

PREPARATION

Proper installation of the thermostat will be accomplished by
following these step by step instructions. If you are unsure
about any of these steps, call a qualified technician for
assistance.

Assemble tools.

Drill with 3/16

Flat Blade
Screwdriver

Wire cutter
& Stripper

inch Drill Bit
(when not
using j-box)

Make sure your Heater/Air Conditioner is working properly
before beginning installation of the thermostat.

Carefully unpack the thermostat. Save the screws, wall
anchors, and instructions.

Turn off the power to the Heating/Air Conditioning system
at the main fuse panel.

Installation

Location Considerations

Locate the T701 Series Thermostat Controller:

on a partitioning wall, approximately 5 ft (1.5 m) above the floor in a
location of average temperature.

away from direct sunlight, radiant heat, outside walls, outside doors, air
discharge grills, or stairwells; and from behind doors.

away from steam or water pipes, warm air stacks, unconditioned areas
(not heated or cooled), or sources of electrical interference.

Page 2

STEP #2

APPLICATIONS

New Applications

Follow the thermostat and E-M (Electro-Mechanical) wiring
diagrams supplied with the submittal package, and afixed to
the fan coil unit enclosure. Go to pages 6 through 10 for
instructions to test operation for the available applications.

Existing Applications

Remove the cover of the old thermostat. If it does not come
off easily check for screws.

Loosen the screws holding the thermostat base or subbase
to the wall and lift away.

Disconnect the wires from the old thermostat. Tape the ends
of the wires as you disconnect them and mark them with the
letter of the terminal for easy reconnection to the new
thermostat.

Keep the old thermostat for reference purposes until your
new thermostat is functioning properly.

CAUTION: Risk of Electric Shock.

Disconnect power supply before making electrical connections
to avoid electric shock.

CAUTION: Risk of Property Damage.

Do not apply power to the system before checking all wire
connections. Short circuited or improperly connected wires
may result in permanent damage to the equipment.

IMPORTANT: Make all wiring connections in accordance with local,

national, and regional regulations. Do not exceed the electrical ratings
of the T701 Series Thermostat Controller.

Note: This thermostat is strictly a low voltage control. A compatible
relay board must be installed to isolate the 24 volt wires from the line
voltage to the fan.

Page 3

STEP #3

WIRE CONNECTIONS

If the terminal designations on your old
thermostat do not match those on the
new thermostat, refer to the chart below.

4-PIPE SYSTEMS

Wire from the

old thermostat

terminal marked

Y1, Y or C

W1, W or H

Rh, R, M, Vr, A

C

G, F or LOW

MED

HIGH

Function

Cooling
Heating

Power

Common

Low

Fan Speed

Medium

Fan Speed

High

Fan Speed

Install on the

new thermostat

terminal marked

Y1

W1

R
C

G

G2

G3

Note: Be sure to seal any opening through
the wall behind the thermostat with fireproof
material to prevent improper temperature
sensing of the conditioned space.

Page 4