Siemens HOTEL SOLUTION HTC3.1/A User manual

6319

HOTEL SOLUTION™

Room operator unit

Room operator unit with

built-in sensor

HTC3.1/A

HTC3.1S/A

Room unit for operation of the individual room control system in hotel rooms

•Displays room temperature setpoint and setpoint adjustment

•Individual setpoint adjustment with "plus" and "minus" membrane switches

•Individual manual fan-speed selection for fan control (up to 3 speeds)

•Membrane switch for selection of "Auto" mode

•Room temperature detected with connected temperature sensor

•Room temperature detected with built-in temperature sensor (HTC3.1S/A)

Application

The HTC3.1A and HTC3.1S/A room operator units are used in conjunction with a

HRC3.. room controller. The room operator unit detects the temperature and trans-

mits it to the HRC3.. room controller for room temperature control.

The room operator unit indicates the operating mode in the hotel room and can be

used to operate the fan coil unit, either manually or automatically via the connected

room controller.

CM2N6319en

31.07.2008 Building Technologies

Functions

The HTR3.1/A or HTR3.1S/A room operator unit communicates with the HRC3.. room

controller via a serial port, performing the following functions:

•Displays the room temperature setpoint

•Transmits the manual room temperature setpoint adjustment

•Displays the manual room temperature setpoint adjustment

•Transmits the manually set fan speed

•Displays the manual or automatic fan speed

•Transmits the "Auto" operating mode signal for automatic selection of the fan speed

•Detects and transmits the room temperature with an externally connected 10kΩNTC

room temperature sensor (HTC3.1/A only)

•Detects and transmits the room temperature with a built-in 10kΩNTC room

temperature sensor (HTC3.1S/A only)

Types

HTC3.1/A Room operator unit

HTC3.1/SA Room operator unit with built-in sensor

Ordering

When ordering, please specify the quantity, product name and type code:

30 Room operator units HTC3.1/A

Example

Compatibility

See assortment overview, N6301.

Mechanical design

The room operator unit comprises:

•Printed circuit board with the electronic circuit, LCD display, membrane switches for

operation and terminal block

•Front plate

•Operator panel

The components are snap-mounted in the front-plate unit. The operator panel label has

an adhesive strip on the back. After removal of the protective transparent film from the

display window, and of the backing paper from the adhesive operator panel label, the

latter can be affixed to the front plate.

Unlike the HTC3.1/A, the HTC3.1S/A room operator unit has a built-in temperature

sensor.

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Siemens HTC3.1/A, HTC3.1S/A – Room operator units CM2N6319en

Building Technologies 31.07.2008

Operator controls, connectors and display

6319Z01

20.5 °C

1 2 3

Auto

7 6 5 4

654321

Front view Rear view

1 LCD panel

Key 1a Setpoint adjustment indicator (bar)

1b Temperature setpoint display (digits)

1c Fan status display

= Off

= Speed 1

= Speed 2

= Speed 3

2 Membrane switch for reducing predefined setpoint in steps of 0.5 or 1.0 K

3 Membrane switch for increasing predefined setpoint in steps of 0.5 or 1.0 K

4 Membrane switch for switching to "Auto" mode

5 Membrane switch for gradually increasing fan speed

6 Membrane switch for gradually decreasing fan speed

7 Membrane switch for switching to "Fan OFF" mode

8 Terminal block

The guest can use the room operator unit to do the following:

•Adjust the preset room temperature setpoint by ±2 or by ±4 K in eight steps. The

step size of 0.5 or 1.0 K can be configured in the room controller. The eight

temperature-change increments are indicated by eight bars across the top of the

LCD display panel.

•Enable fan speeds 1, 2 and 3 manually

•Change from manual to automatic mode ("Auto")

Switching to "Auto" causes the fan speed to be set automatically by the controller

(Speed 1,2 or 3). The fan status is indicated by symbols across the bottom of the LCD

display panel.

The temperature setpoint valid for the room is displayed in digits on the LCD display

panel. Throughout the period for which the guest is checked in, the individual setpoint-

setting remains valid. It cannot be overwritten by the hotel service staff.

When the guest leaves the room (removing the access card from the card holder) the

system switches automatically to "Auto", and the "Pre-comfort" room operating mode

with the energy-saving function (widening of the deadband) comes into effect. When

the guest returns to the room, the "Auto" mode remains active and the "Comfort" room

operating mode, with the guest's personally selected setpoint adjustment, is restored.

In conjunction with the HOTEL SOLUTION system, the room temperature setpoints

preset for a given room are automatically re-instated when the guest checks out.

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Engineering notes

Base frame The room operator unit is designed for flush mounting or cavity-wall mounting in

conjunction with base-frames and cover plates from various manufacturers:

−SIEMENS-DELTA futura

−VIMAR idea

−Bticino Classic

−GEWISS Playbus

−AVE Systema 45

Up to 5 room operator units may be connected to one room controller.

The maximum permitted current associated with the supply voltage from the HRC3..

room controller must not be exceeded.

For further information, see data sheets N6313 and N6314.

The room temperature control algorithm is not in the room operator unit itself, but in the

controller application. To enable the room controller to communicate with the room

operator unit, the latter must be assigned with an address.

ddressing

The addresses of the room operator units are defined by their ID number, and the

temperature measurement function is enabled by setting the MST flag. The factory

settings are always ID = 1 and MST = 0.

In a control loop with several room operator units, the temperature is measured in one

device only (the master). The MST flag (MST = 0) determines whether the room

operator unit should measure the temperature, or whether it is a slave device

(MST = 1), in which case the temperature sensor is disabled.

−First room operator unit ID=1 MST=0 Master (sensor enabled)

−Second room operator unit ID=2 MST=1 Slave

−Third room operator unit ID=3 MST=1 Slave

−Fourth room operator unit ID=4 MST=1 Slave

−Fifth room operator unit ID=5 MST=1 Slave

Further control loops can also be defined by means of a special application in the room

controller. In such cases, other room operator units measure the temperature on the

same room bus.

Several control loops

Example with two control loops:

−First room operator unit for control loop 1 ID=1 MST=0

−Second room operator unit for control loop 2 ID=2 MST=0

After a power failure, the room operator unit can be set to initialization mode by

operating the keys in the following sequence approximately 6 to 12 seconds after

power has been restored to the room controller or room operator unit:

Changing ID and MST

1. Hold down key 7

2. Hold down key 4

3. Release key 7

4. Release key 4

The current device address will now be displayed, alternating with the letters "Id". The

value can be modified with the "Minus" and "Plus" keys (keys 2 and 3).

After setting the required ID number, the ID number setting is confirmed with key 6.

The current MST number will now be displayed, alternating with the letters "MST". The

value can be modified with the "Minus" and "Plus" keys (keys 2 and 3).

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After setting the required MST number, the setting is confirmed with key 6.

After this input, the settings are saved and all LCD segments are illuminated for

approximately 4 seconds. This allows you to check that all the available LCD display

characters are still operating correctly.

The temperature sensor connected to the room operator unit HTC3.1/A, or the

HTC3.1S/A room operator unit with the built-in temperature sensor must be installed in

a suitable location for measurement of the room temperature.

Mounting location

The HTC3.1/A room operator unit, which does not have a built-in temperature sensor,

is not restricted in this way. A suitable temperature sensor for this unit is the HSE1.1

cable temperature sensor. If the VIMAR idea installation system is used, the room

temperature sensor HSE1.2 is also suitable.

STOP Caution •Do not connect an external room sensor to the HTC3.1S/A room operator unit.

•Heat sources result in false temperature measurements. Ensure a minimum distance

of 1.5 m from lamps.

If the sensor is in an unsuitable location, the measured value can be corrected with a

temperature offset. The correction can be undertaken with the SCOPE or HSC (Hotel

Solution Commissioning) tool.

Correcting the

measured value

In the standard application the basic setting for the temperature offset is –4 K. This

applies to the HTC3.1S/A room operator unit with the built-in sensor.

For the HTC3.1/A room operator unit with an external type HSE1.2 sensor, a

temperature offset of –1 K must be set.

Mounting

•The HTC3.1/A or HTC3.1S/A should be mounted at eye level in the living area of the

hotel room.

•Lamps and other heat sources in the vicinity of the room temperature sensor must

not be allowed to distort the measured temperature. The room operator unit with the

built-in temperature sensor is not suitable for mounting within reach of the bed, for

example, because items such as bedside lamps cause to0 great an increase in the

measured temperature.

•Conduits must be sealed where they enter wall boxes, so that the temperature is not

falsified by draughts.

•First press the room operator unit into the base frame and remove the protective

transparent film from the display window. There is no access to the protective film on

the display window once the front-plate label is in position. Only then should you

attach the adhesive front-plate label. It is important to follow this sequence, because

if the front-plate label is fitted first, it is then difficult to press the unit into the base

frame.

•To remove the unit, it must be unscrewed from the wall together with the base frame.

•The screw terminals of the room operator unit can accommodate only one wire with

a maximum diameter of 1 mm. When connecting the bus, therefore, we recommend

that the room operator unit should be connected as the last room-bus device.

•The device is designed for fixed installation in a dry, enclosed space.

•For installation in a 4-module mounting box, depth 50 mm

•Mount horizontally only, with the front plate vertical

•Do not install AC 230 V devices in the same mounting box

•Commissioning must be carried out by trained personnel only

•Do not open the unit

•Local safety and installation regulations must be observed

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Siemens HTC3.1/A, HTC3.1S/A – Room operator units CM2N6319en

Building Technologies 31.07.2008

Commissioning

If several devices are operated by the same room controller, an address must be set for

each one (see "Engineering notes"). Only one device will operate with the factory-set

default.

Note In the standard application with only one room operator unit, the defaults are ID = 1

and MST = 0 (sensor active). The room operator units are therefore factory-set to these

defaults.

Depending on the location of the sensors, the measured value may need to be adjusted

with the SCOPE or HSC tool (see "Engineering notes").

Technical data

Power supply (from HRC3..) Working voltage DC 9..15 V

Current 20 mA

Bus interface Bus voltage SELV DC 12 V

Type RS485

Transmission speed 4800 baud

Temperature signal input Voltage DC 0…12 V 10…40 °C

Current 1 mA

Measuring element NTC 10kOhm

Setpoint correction Correction range ±2 or ±4 K

Resolution 0.5 K or 1 K

Parameters Parameters set with internal software and

stored in EEPROM

Environmental conditions Operating temperature: -5...+50 °C

Transport temperature: -25..+65 °C

Humidity <95 % non-condensing

Air pressure during operation: Min. 700hPa (3000m above sea level)

Air pressure during transportation: Min. 700hPa (10, 000m above sea level)

Standards

Product safety Automatic electrical controls for household

and similar use EN 60 730-1 and EN 60 730-2-11

Electromagnetic

compatibility Emitted interference in accordance with

Interference immunity in accordance with EN 61000-6-3

EN 61000-6-2

Housing protection

Protection standard

Protection class IP 20 to EN 60529

III to IEC1140

conformity Meets the requirements of

EMC Directive

89/336/EEC

Low Voltage Directive 73/23/EEC

UL/CUL approval UL/CUL 916

Dimensions Suitable for flush mounting in rectangular

flush-mounting box or cavity-wall box 4 modules

Color Operator panel label Pantone black 7U2Y

Dimensions See also dimension diagrams 103mm x 51mm x 25mm

Weight Excluding packaging

With packaging 0.050 kg

0.068 kg

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Siemens HTC3.1/A, HTC3.1S/A – Room operator units CM2N6319en

Building Technologies 31.07.2008

Connection diagrams

12345

6319G01

(GND)

(DC 12 V)

1 Serial port, RS485+

2 Serial port, RS-485−

3 Working voltage DC 0 V

4 Working voltage DC 12 V

5,6 Connection for 10 kΩNTC

temperature sensor

Connection

terminals

12345 S2

X12

6319A01

1234

S2 Room operator unit, type HTC3.1/A

B1 Temperature sensor, 10 kΩ, NTC

(e.g. HSE1.1, HSE1.2)

N1 HRC3.. room controller

Wiring diagram

HTC3.1/A

125S2

X12

6319A02

1234

S2 Room operator unit, type HTC3.1S/A

N1 HRC3.. room controller

Wiring diagram

HTC3.1S/A

STOP Caution Note the cross-over between pins 3 and 4.

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Siemens HTC3.1/A, HTC3.1S/A – Room operator units CM2N6319en

Building Technologies 31.07.2008

Dimensions

100

102,5

25 1,5

9,5

>25

6319M01

Auto

Dimensions in mm

108

140,5

80,5

6319M02

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Siemens HTC3.1/A, HTC3.1S/A – Room operator units CM2N6319en

ect to chan

Building Technologies 31.07.2008

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