Home > Schneider Electric > Schneider Electric TC900 Series Space Logic Thermostat Instruction Manual

Schneider Electric TC900 Series Space Logic Thermostat Instruction Manual

2

Installation Instructions

SpaceLogic Thermostat TC900 Series Installation Instructions

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Precautions

SpaceLogic Thermostat

TC900 Series for Modulating Fan Coil Applications

DANGER

related to the construction and operation of this electrical

equipment and installations, and has received safety

training to recognize and avoid the hazards involved.

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC

FLASH

TC903-3A2P-24, TC903-3A4DPSA, TC903-3A4DPMSA, TC903-3A4DPMSA-24

TC907-3A2P-24, TC907-3A4DPSA, TC907-3A4DPMSA, TC907-3A4DPMSA-24

TC907-3A2P-24B, TC907-3A4DPSAB, TC907-3A4DPMSAB,

TC907-3A4DPMSA-24B

ꢀ Follow safe electrical work practices. See NFPA 70E in the

USA, CSA Z462 in Canada, or applicable local codes.

ꢀ Read and understand the instructions before installing the

product. Follow the instructions during installation.

ꢀ Installation, wiring, testing or service must be performed

only by qualified persons in accordance with all applicable

codes and regulations.

ꢀ Do not use the product for life or safety applications.

ꢀ Do not install the product in hazardous or classified locations.

ꢀ Do not exceed the product’s ratings or maximum limits.

ꢀ The product may use multiple voltage/power sources.

ꢀ Turn off ALL power supplying equipment before working on

or inside the equipment.

manufacturer, the protection provided by the product may

Electric for any consequences arising out of the use of this

material.

becomes dirty. Do not use any cleaning agent, especially

alcohol.

ꢀ Use a properly rated voltage sensing device to confirm that

all power is off.

ꢀ Do NOT depend on the product for voltage indication.

ꢀ Products rated only for basic insulation must be installed on

insulated conductors.

TC907 Series

TC903 Series

Product Description

ꢀ Current transformer secondaries (current mode) must be

shorted or connected to a burden at all times.

ꢀ Remove all wire scraps and tools, replace all doors, covers

and protective devices before powering the equipment.

Dimensions

The TC900 Series fan coil thermostats are

Hole pitch

60 mm (standard)

residential applications.

Failure to follow these instructions will result in death or

serious injury.

Control pollution degree Pollution Degree 2

The TC900 Series can be used for 2-pipe or 4-pipe

applications.

Operation type

Terminal sizing

Terminals torque*

Type 1.B

Dimensions mm (in.)

TC907 Series

conductors

Front View

Back View

Side View

39.0 (1.54)

14.5 (0.57)

Max: 0.44N.m

86.0 (3.40)

64.5 (2.54)

68.0 (2.68)

Built-in sensing element

European conformance CE:

Accuracy

±1 °C

Agency approvals

UKCA (UK)

Set-point range

5 to 35 °C

EAC (Russia)

RCM (Australia)

RoHS: 2011/65/EU, 2015/863/EU

REACH: 1907/2006/EC

0 to 50 °C (shown in 0.5 °C

increments)

Display range

Operating temp.

0 to 50 °C

*Exceeding the maximum torque when tightening the terminal

screw may lead to plastic cracking.

Operating humidity

Power consumption

5 to 95 %RH (non-condensing)

< 1.7 W

60.0 (2.36)

90 to 240 Vac, 50/60Hz

Power supply

Relay & load

TC903 Series

Relay rating 5A

Load rating 2A resistive, 1A

inductive

Front View

Back View

Side View

39.0 (1.54)

86.0 (3.40)

64.5 (2.54)

14.5 (0.5

Protection class

Housing

IP20

55.4 (2.18)

Flame-retardant PC

USA: +1 888-444-1311

Europe: +46 10 478 2000

Asia: +65 6484 7877

60.0 (2.36)

www.schneider-electric.com

Schneider Electric, 35 rue Joseph Monier, F - 92500 Rueil-Malmaison

January 2024

F-28138-8 nk

SpaceLogic Thermostat TC900 Series Installation Instructions

Functions

Set-point Adjustment

SpaceLogic Thermostat TC900 Series Installation Instructions

setting by 1 °C, the modulating control valve opens

schneider-electric.com | 3

models which only support one, but not both simul-

schneider-electric.com | 4

Sleep Energy Saving Mode

At 12:00 a.m., Sleep Energy Saving mode turns on

and displays at 1:00 a.m. The temperature

according to the 0 to 10 Vdc analog output control

signal. When room temperature reaches or is low-

er than (higher than) the temperature setting, the

modulating control valve closes, according to the 0

to 10 Vdc analog output control signal.

The set-point buttons allow users to adjust the set-

point (in 0.5 °C increments) for the space.

setpoint increases or decreases automatically

Installation Guidelines

Fan Speed

thermostat is in cooling mode, the setpoint will in-

crease 1 °C per hour until 3:00 a.m. then decreases

1 °C per hour until the original setpoint is reached

at 7:00 a.m. and

is in heating mode, the setpoint will decrease 1°C

per hour until 3:00 a.m. and then increases 1°C per

hour until the original setpoint is reached at 7:00

a.m. and

ꢀ Install the thermostat about 1.5 m (59”) above

Modulating Valve Control (4-Pipe Models)

Users can select a fan speed (High, Medium, Low

In Cooling mode, when the room temperature is

higher than the temperature setting by 1°C, the

modulating cooling control valve opens according

to the 0 to 10 Vdc analog output control signal.

When room temperature is less than or equal to the

temperature setting, the modulating cooling control

valve closes according to the 0 to 10 Vdc analog

output control signal. The modulating heating con-

trol valve remains closed.

ꢀ

installation/service

Mode Control

ꢀ

Users can switch operating modes (Heating, Cool-

ing, or Ventilation) by pressing the Mode button.

by radiant heat or in places with high levels of

sunlight

not rise above 26°C and the heating setpoint will

not drop below 18°C in Sleep Energy Saving mode.

Eco Mode

ꢀ Do not install thermostats behind doors or in

corners

Time Setting Function

ECO button (TC903) or the ECO button (TC907)

appears

of the LCD display. In Cooling mode, the set-point

is automatically adjusted to 26°C and the fan speed

is set to Low. In Heating mode, the set-point is

automatically adjusted to 18 °C and the fan speed

ꢀ Protect from water/debris to avoid damaging the

thermostat

During power-on, press and hold

to enter the Time Setting mode. Press the mode

button again to select the hour, minute and week.

In Heating mode, when the room temperature is

lower than the temperature setting by 1 °C, the

modulating heating control valve opens according

to the 0 to 10 Vdc analog output control signal.

When room temperature is greater than or equal to

the room temperature setting, the modulating heat-

ing control valve closes according to the 0 to 10

Vdc analog output control signal. The modulating

cooling control valve remains closed.

Operation Instructions

Press the up

and down

buttons to adjust this

will turn

Button Lockout Function

Press and hold the up

OFF button

fan speed, as desired, or do a short press of the

ECO button (TC907) to cancel Eco mode.

motorized valve. If no buttons are pressed for 10

and down

buttons at

any button to turn the backlight back on.

Temperature Setting

pad lockup function to prevent thermostat operation

by others. While lockout is active, the lock icon

will be displayed on the screen. To deactivate the

Energy Saving Functions

Energy Saving Mode

Button Lockout Function

This function allows the buttons to be deactivated to

prevent thermostat operation by others.

With the power on, press

perature setting and

to decrease the tem-

to increase temperature in

button on TC903 or the

lockout function, press and hold the up

down

and

ECO

button on TC907 to turn on Eco mode.

and icons. If the

Low Temperature Protection

steps of 0.5°C. The

will appear on the display.

The display will show the

to unlock the system.

If the room temperature drops below 5 °C, Heating

mode will start automatically and the fan speed will

be set to High. Once the temperature reaches 7 °C,

thermostat is in Cooling mode, the temperature is

automatically set to 26 °C with the fan running at

low speed. If the thermostat is in Heating mode,

the temperature is automatically set to 18 °C with

Low Temperature Protection Function

Mode Selection

temperature drops below 5 °C, the thermostat will

start automatically for heating and display the

symbol. The fan will run at high speed automati-

cally and the motorized valve will be opened (hot

water valve will be opened for 4-pipe models).

When the room temperature rises to 7 °C, the low

temperature protection function is canceled and the

thermostat will stop automatically, returning to its

With the power on, press to switch the operation

mode. The display indicates cooling with , heating

Alert

press the up

or down

buttons to change the

with

and ventilation with . Auto mode can be

stat will attempt to command the valve to close and

place the device in an inoperative state. The display

selected in the parameter settings and is indicated

ECO buttons.

on the display with

Unoccupied Energy Saving Mode

Fan Speed Selection

nostic messages:

Unoccupied Energy Saving mode can be entered

With the power on, press

TC907 to select a fan wind/air speed of high

medium , low or automatic . In automatic

on TC903 or

ꢀ

after a hotel room key card is removed from the

Alert Function

reader

and

are displayed. If the thermostat

mode, the fan speed changes automatically. For a

is in cooling mode, the temperature is automatically

set to 28 °C with the fan running at low speed. If

the thermostat is in heating mode, the temperature

is automatically set to 16 °C with the fan running

at low speed. When the key card is returned to the

depending on which is selected), the thermostat

will attempt to command the fan and valve to close,

will automatically switch to medium fan speed. For

Remote Sensor/Key Card

cally switch to high wind speed.

reader, the indoor

display and ECO

icon turn

Modulating Valve Control (2-Pipe Models)

terminals are utilized for a remote temperature

In Cooling (Heating) mode, when the room temper-

ature is higher than (lower than) the temperature

mode.

Schneider Electric, 35 rue Joseph Monier, F - 92500 Rueil-Malmaison

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General	Details
Name	Schneider Electric TC900 Series Space Logic Thermostat Instruction Manual
Make	Schneider Electric
Language	English
Filetype	PDF (Download)
File size	1.38 MB

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Schneider Electric TC900 Series Space Logic Thermostat Instruction Manual Overview

Summary of Contents

Page 1: Installation instructions for SpaceLogic Thermostat TC900 Series are provided. Precautions include following safe electrical work practices and ensuring qualified personnel perform installation. The product is not intended for life or safety applications and must not be installed in hazardous locations. The TC900 Series can be used for 2-pipe or 4-pipe applications. Set-point adjustment allows users to modify the temperature in 0.5 °C increments. Sleep Energy Saving mode adjusts the temperature automatically during the night. Users can select fan speed and switch operating modes (Heating, Cooling, or Ventilation). Low temperature protection function activates heating mode automatically if the temperature drops below 5 °C. Unoccupied Energy Saving mode can be activated after a hotel room key card is removed. The thermostat features a button lockout function to prevent unauthorized operation.
Page 2: SpaceLogic Thermostat TC900 Series Installation Instructions Parameter Settings Energy Saving Functions The mode button or Fan button allows navigation between parameters. Low temperature protection can be enabled or disabled. This parameter table must be set by specialized installation personnel authorized by Schneider Electric. Provide an approved disconnecting means and overcurrent protection to supply conductors. The TC900 Series thermostats come with the option of Modbus communication. The RS-485 communication parameters can be adjusted. The TC900 Series thermostats communicate as a Modbus RTU secondary device. Brightness values for backlight can be adjusted from 0 to 5% in 1% increments. Ensure the polarity of the mains supply is correct during installation.