Johnson Controls T701DFN-1 User manual

Remote sensor ready
Self-prompting adjustment
Auto 2-pipe changeover
when used with accessory
changeover sensor
Dry contact equipped
Backlit display
One For AllTM
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
Installation
Instructions
model T701DFN-1
Thermostat
Fan Coil

P/N T701DFN-1
Page 1
Copyright 2010, All Rights Reserved
TABLE OF CONTENTS
CAUTION
WARNING
Follow Installation Instructions
carefully. Disconnect Power
to the Heater/Air Conditioner
before removing the old therm-
ostat and installing the new
thermostat.
Step #1: Preparation
Step #2: Applications
Step #4: Test Operation
Troubleshooting
2
3
6
11
Step #3: Wire Connections
4
IMPORTANT: The T701DFN-1 and T701DFP-1 Series Thermostat
Controllers are intended to provide an input to equipment under
normal operating conditions. Where failure or malfunction of the
thermostat controller could lead to personal injury or property damage
to the controlled equipment or other property, additional precautions
must be designed into the control system. Incorporate and maintain
other devices, such as supervisory or alarm systems or safety or limit
controls, intended to warn or protect against failure or malfunction of
the thermostat controller.
IMPORTANT: The T701DFN-1 and T701DFP-1 Series Thermostat
Controllers are intended to provide an input to equipment under
normal operating conditions. Where failure or malfunction of the
thermostat controller could lead to personal injury or property damage
to the controlled equipment or other property, additional precautions
must be designed into the control system. Incorporate and maintain
other devices, such as supervisory or alarm systems or safety or limit
controls, intended to warn or protect against failure or malfunction of
the thermostat controller.
Sample Wiring Diagram
14

Drill with 3/16
inch Drill Bit
(when not
using j-box)
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.
Flat Blade
Screwdriver Wire cutter
& Stripper
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.
STEP #1
PREPARATION
Turn off the power to the Heating/Air Conditioning system
at the main fuse panel.
Page 2
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.

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.
STEP #2
APPLICATIONS
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
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.
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.
New Applications
Existing 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.

If the terminal designations on your old
thermostat do not match those on the
new thermostat, refer to the chart below.
STEP #3
WIRE CONNECTIONS
Page 4
4-PIPE SYSTEMS
Wire from the
old thermostat
terminal marked
Install on the
new thermostat
terminal marked
Function
Cooling
Heating
Power
Common
Low
Fan Speed
Medium
Fan Speed
High
Fan Speed
Y1
W1
R
C
G
G2
G3
Y1, Y or C
W1, W or H
Rh, R, M, Vr, A
C
G, F or LOW
MED
HIGH
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.

If the terminal designations on your old
thermostat do not match those on the
new thermostat, refer to the chart below.
STEP #3
WIRE CONNECTIONS
Page 5
2-PIPE SYSTEMS
Wire from the
old thermostat
terminal marked
Install on the
new thermostat
terminal marked
Function
Water Valve
Strip Heater
Power
Common
Low
Fan Speed
Medium
Fan Speed
High
Fan Speed
Y1
W1
R
C
G
G2
G3
Y1, Y or C
W1, W or H
Rh, R, M, Vr, A
C
G, F or LOW
MED
HIGH
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.

Press the MODE button repeatedly until the
HEAT icon appears on the display. Press the UP
or DOWN buttons until the set temperature is 10
degrees above room temperature. The hot water
valve will open and the fan will be running.
Press the MODE button repeatedly until the
COOL icon appears on the display. Press the UP
or DOWN buttons until the set temperature is 10
degrees below room temperature. The cold water
valve will open and the fan will be running.
Turn the power on to the Fan Coil Unit.
Press the UP button until the setpoint is equal to
the room temperature. Press the Fan button
repeatedly until a single bar appears next to the
Fan icon. Confirm the fan is running on low
speed. Press the Fan button again, confirm the
fan is running on medium speed. Again, press
the Fan button, confirm the fan is running at high
speed. Press the Fan button once more, the
bars next to the Fan icon should disappear.
Press the MODE button repeatedly until the OFF
icon appears on the display. Both valves will be
closed and the fan will be off.
STEP #4
TEST OPERATION
4-PIPE SYSTEM
Page 6

If hot water is available, press the MODE button
repeatedly until the HEAT icon appears on the
display. Press the UP or DOWN buttons until the
set temperature is 10 degrees above room
temperature. The hot water valve will open and the
fan will be running.
If cold water is available, press the MODE button
repeatedly until the COOL icon appears on the
display. Press the UP or DOWN buttons until the
set temperature is 10 degrees below room
temperature. The cold water valve will open and
the fan will be running.
Press the UP button until the setpoint is equal to
the room temperature. Press the Fan button
repeatedly until a single bar appears next to the
Fan icon. Confirm the fan is running on low
speed. Press the Fan button again, confirm the
fan is running on medium speed. Again, press
the Fan button, confirm the fan is running at high
speed. Press the Fan button once more, the
bars next to the Fan icon should disappear.
Press the MODE button repeatedly until the OFF
icon appears on the display. Both valves will be
closed and the fan will be off.
2-PIPE, CHANGEOVER SENSOR, NO STRIP HEAT
STEP #4
TEST OPERATION
Page 7
Turn the power on to the Fan Coil Unit and confirm
that the thermostat is programmed correctly in setup
steps #3 and #4 on page 11 of the Owner’s Manual.

If Heat Only, press the MODE button
repeatedly until the HEAT icon appears on the
display. Press the UP or DOWN buttons until the
set temperature is 10 degrees above room
temperature. The hot water valve will open and the
fan will be running.
If Cool Only, press the MODE button
repeatedly until the COOL icon appears on the
display. Press the UP or DOWN buttons until the
set temperature is 10 degrees below room
temperature. The cold water valve will open and
the fan will be running.
Press the MODE button repeatedly until the OFF
icon appears on the display. Both valves will be
closed and the fan will be off.
Press the UP button until the setpoint is equal to
the room temperature. Press the Fan button
repeatedly until a single bar appears next to the
Fan icon. Confirm the fan is running on low
speed. Press the Fan button again, confirm the
fan is running on medium speed. Again, press
the Fan button, confirm the fan is running at high
speed. Press the Fan button once more, the
bars next to the Fan icon should disappear.
2-PIPE, NO CHANGEOVER SENSOR
STEP #4
TEST OPERATION
Page 8
Turn the power on to the Fan Coil Unit and confirm
that the thermostat is programmed correctly in setup
steps #3 and #4 on page 11 of the Owner’s Manual.

If hot water is available, press the MODE button
repeatedly until the HEAT icon appears on the
display. Press the UP or DOWN buttons until the
set temperature is 10 degrees above room
temperature. The hot water valve will open and the
fan will be running. The strip heat will be locked
out if hot water is available.
If cold water is available, press the MODE button
repeatedly until the COOL icon appears on the
display. Press the UP or DOWN buttons until the
set temperature is 10 degrees below room
temperature. The cold water valve will open and
the fan will be running.
If hot water is not available, but your unit is
equipped with a strip heat system, press the UP or
DOWN buttons until the set temperature is 10
degrees below room temperature. The unit should
energize the strip heaters and the fan will be
running.
2-PIPE, CHANGEOVER SENSOR, WITH STRIP HEAT
STEP #4
TEST OPERATION
Page 9
Turn the power on to the Fan Coil Unit and confirm
that the thermostat is programmed correctly in setup
steps #3 and #4 on page 11 of the Owner’s Manual.