Honeywell SDC User Manual

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Heating Controller SDC

Remote Heating Controller DHC

OPERATING INSTRUCTIONS

EN2H-0220GE51 R0308

SDC / DHC Contents

Contents

1	Software version .............................................................................................................			7
2	Safety instructions..........................................................................................................			7
	2.1	Intended use ........................................................................................................		7
	2.2	Requirements for start-up ....................................................................................		7
		2.2.1	Power supply...........................................................................................	8
		2.2.2	Connection conditions.............................................................................	8
		2.2.3	Cable cross-sections...............................................................................	8
		2.2.4	Maximum cable lengths ..........................................................................	8
		2.2.5	Cable installation.....................................................................................	8
		2.2.6	Grounding and zeroing............................................................................	9
	2.3	Hot-water temperature greater than 60 °C ..........................................................		9
	2.4	Connection of accessory parts ..........................................................................		10
	2.5	Maintenance and cleaning .................................................................................		10
3	Overview ........................................................................................................................			11
4	Operation .......................................................................................................................			12
	4.1	Display and operating elements ........................................................................		12
		4.1.1	Display (basic display) ..........................................................................	13
		4.1.2	Operating elements...............................................................................	14
			4.1.2.1 Input button (press / turn) ........................................................	14
			4.1.2.2 "Daytime room temperature" button........................................	14
			4.1.2.3 "Night-time room temperature" button.....................................	15
			4.1.2.4 "Daytime hot-water temperature" button .................................	15
			4.1.2.5 "Operating mode" button (basic display).................................	16
			4.1.2.6 "Switching time programs / Holiday programs" button............	23
			4.1.2.7 "System information" button ....................................................	26
			4.1.2.8 "Manual mode" / "Emission measurement" button .................	28
			4.1.2.9 Heating curve ..........................................................................	30
	4.2	Menu-selection level ..........................................................................................		31

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Contents					SDC / DHC

		4.2.1	"Time - Date" menu ...............................................................................		33
		4.2.2	"Timeprograms" menu ..........................................................................		34
			4.2.2.1 Selection of the control circuit .................................................		35
			4.2.2.2 Selection of the program .........................................................		35
			4.2.2.3 Selection of day of the week and cycle ...................................		35
			4.2.2.4 Programming switching times and cycle temperatures ...........		36
Block programming			...............................................................................................................		44
		4.2.3	"System Parameters" menu ..................................................................		51
			4.2.3.1	Language selection .................................................................	51
			4.2.3.2	Time program ..........................................................................	52
			4.2.3.3	Operating mode.......................................................................	52
			4.2.3.4 Summer / Heating limit ............................................................		54
			4.2.3.5	Parameter reset.......................................................................	55
		4.2.4	"DHW" menu .........................................................................................		56
			4.2.4.1	Night-time hot-water temperature ...........................................	56
			4.2.4.2	Legionella protection day ........................................................	56
		4.2.5 "Direct Heating Circuit" / "Mixed Heating Circuit 1" / "Mixed
			Heating Circuit 2" menu ........................................................................		57
			4.2.5.1	Reduced operation ..................................................................	57
			4.2.5.2	Heating system........................................................................	58
	4.3	Error messages..................................................................................................			59
5	Log	..................................................................................................................................			60

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SDC / DHC	Contents

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SDC / DHC	Software version

1 Software version

This documentation is valid for software version V 3.0 of your control device. The software version is displayed after switch-on for approx. 8 s. If you are using an older software version, please contact your heating technician.

2Safety instructions

2.1Intended use

The SDC / DHC Smile family of controllers was designed for the sole purpose of regulating and controlling hot-water, heating and district heating systems (including hot-water production) that do not exceed a maximum flow temperature of 120 °C.

2.2Requirements for start-up

ATTENTION

The heating system must be complete and filled with water so that the pumps do not run dry and the heating boiler is not damaged.

The control equipment must be installed in accordance with the installation instructions.

All electrical connections (voltage supply, burner, mixer motor, pumps, sensor wiring etc.) must be carried out by the technician in accordance with the applicable VDE regulations and correspond with the circuit diagrams.

If floor heating is connected, a limiting thermostat must also be installed in the flow line after the heating circuit pump. This switches off the pumps at excessive flow temperatures.

Before starting up the controller, have the heating technician check all requirements listed above.

NOTE The current time and date are already set at the factory and are backed up by a battery.

The time switch functions based on a basic program and the control functions are preset for common heating systems with lowtemperature boilers.

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Safety instructions	SDC / DHC

2.2.1Power supply

Do not disconnect the controller from the mains supply!

The battery for saving all individualised data is otherwise unnecessarily strained. The frost-protection function of the controller is deactivated.

2.2.2Connection conditions

All electrical connection work may only be carried out by qualified personnel!

2.2.3Cable cross-sections

1.5 mm2 for all cables carrying 230 V (power supply, burner, pumps, actuator).

0.6 mm2 for bus cables (recommended type J-Y(St)Y 2 x 0.6)

0.5 mm2 for sensors, selectors and analog signal cables.

2.2.4Maximum cable lengths

Sensor, selector and analog inputs

We recommend using cables no longer than 200 m. Longer connection lines could be used, but increase the risk of interference.

Relay outputs

Unlimited cable length.

Bus connections

Max. length of 100 m from the first bus subscriber to the last one (incl. wall modules).

2.2.5Cable installation

Install cables for sensors apart from the cables carrying 230 V! Branch boxes in the sensor cable must be avoided!

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SDC / DHC	Safety instructions

2.2.6Grounding and zeroing

Local regulations on the connection of equipment must be observed!

2.3Hot-water temperature greater than 60 °C

ATTENTION

Note that there is a danger of scalding at all hot-water drawoff points (kitchen, bathroom etc.) in the following cases. Add sufficient cold water in these cases.

Automatic anti- When the automatic anti-legionella mechanism is activated, the legionella mechanism hot water is automatically heated to the anti-legionella

temperature (65 °C at the factory) on the selected day and at the selected time to kill any legionella bacteria found in the hot-water tank.

Manual mode / In the manual mode / emission measurement operating mode, the Emission hot water is heated up to the highest possible boiler temperature,

measurement as the burner and all pumps are switched on and the mixer is opened fully. There is an acute danger of scalding at all connected hot-water draw-off points! Add sufficient cold water or switch off the hot-water loading pump (at the switch of the pump, if present). Heating and hot water are in unregulated continuous operation. This operating mode is for special use by the chimney sweep for emission measurement or if the controller is defective. The high hot-water temperatures can be prevented, however, by setting the boiler thermostat to a max. boiler temperature of approx. 60 °C.

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Safety instructions	SDC / DHC

2.4Connection of accessory parts

WARNING

According to VDE 0730, a separator for each mains terminal is to be provided in the voltage supply to the control equipment. Observe the local regulations regarding grounding and zeroing.

As soon as the mains voltage is applied to terminals 21, 22, 2, 6, 12 and 18, headers X3 and X4 can also carry mains voltage.

If the heating circuit and hot-water loading pumps do not have an On / Off switch, but manual switch-on and switch-off capability is still desired, the appropriate switches must be installed by the customer. All accessory parts (sensors, selectors etc.) are to be connected to the respective circuit diagram.

2.5Maintenance and cleaning

The controller is maintenance-free. The device can be cleaned externally with a moist (not wet) cloth.

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SDC / DHC Overview

Overview

The modular SDC / DHC control device is available in an

installable switch cabinet version and a surface-mounted wall

version with the following equipment features:

Type

Numberof output relays

Burnerstage 2 or Districtheating valve CLOSED

Burnerstage 1

Directheating circuit Variableoutput 3

Mixedheating circuit 1

Mixedheating circuit 2

Tankloading pump

Variableoutput 2

Variableoutput 1

SDC 3-10

–

SDC 3-40

–

SDC 7-21 1)

–

SDC 9-21 2)

+ two

variable

relays

SDC 12-31 3)

+ two

variable

relays

1) DHC 43-1

2) DHC 43-2

3) DHC 43-3

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Operation	SDC / DHC

4Operation

4.1Display and operating elements

	5
1		6



2		7
2		7
3		8
3		8
4		9
4		9

11	10

1"Manual mode" / "Emission measurement" button (not on district heating controllers)

2"Operating modes" button (basic display)

3"Switching time programs" / "Holiday programs" button

4"System information" button

5Display

6Cover clip for service socket

7"Daytime room temperature" button

8"Night-time room temperature" button

9"Daytime hot-water temperature" button

10Input button (press / turn)

11Operating mode symbols (heating programs)

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SDC / DHC	Operation

4.1.1Display (basic display)

1
	C
2	5
2
3
4

1	Day of the week / Date	4	Operating mode symbols
2	Time	5	Heat generator temperature
3	Active operating mode

The illumination of the display is switched on by pressing any button or using the input button î and switches off automatically if no buttons are pressed for a longer period of time.

During start-up of the unit and after a power failure, a segment test with automatic fault diagnosis is carried out. The respective device type and the software version number then appear briefly.

The basic display that then appears shows the day of the week, the date, the time and the heat generator temperature in automatic mode. Different values appear in the basic display depending on the set operating mode (AUTOMATIC, PARTY etc.). Thus, for example, in the ABSENT operating mode, the indication ABSENT TIL appears instead of the date and the return date instead of the temperature. Active summer deactivation is indicated by a beach umbrella symbol À, and active frost protection is indicated by a snowflake symbol Á.

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Operation	SDC / DHC

4.1.2Operating elements

4.1.2.1Input button (press / turn)

ðBy pressing once, you can:

• Confirm input / values

By pressing and holding (approx. 3 s), you can:

•Switch to the menu-selection level

•Move up one menu level

By turning the input button î, you can:

•Change values (clockwise increases called-up values, anticlockwise decreases them)

•Navigate through menus

4.1.2.2"Daytime room temperature" button

Sets the desired room temperature (room setpoint) in automatic

¥mode during the heating cycles and in the PARTY and HEATING operating modes. In operating mode 1, the set value for all heating circuits is the same. In operating mode 2, the set value applies for the respective heating circuit. To set the operating mode, see 4.2.3.3 Operating mode, pg. 52.

Setting ► Press ¥ button.

►Set flashing room temperature specification to the desired value by turning the input button î.

			► Confirm set value by pressing the ¥ button or the input
			► Confirm set value by pressing the ¥ button or the input
			button î.
			Alternative: Automatic acceptance of the value after the set
			information time (see 4.1.2.7 "System information" button, pg. 26).
	Factory setting		20 °C
	Setting range		5 ... 30 °C

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SDC / DHC	Operation

4.1.2.3"Night-time room temperature" button

Sets the lowered room temperature in automatic mode between

¦the heating cycles and in the ABSENT and RED. HEATING operating modes.

In operating mode 1, the set value for all heating circuits is the same. In operating mode 2, the set value applies for the respective heating circuit. To set the operating mode, see 4.2.3.3 Operating mode, pg. 52.

Setting

►Press ¦ button.

►Set flashing room temperature specification to the desired value by turning the input button î.

►Confirm set value by pressing the ¦ button or the input button î.

Alternative: Automatic acceptance of the value after the set information time (see 4.1.2.7 "System information" button, pg. 26).

Factory setting	16 °C
Setting range	5 ... 30 °C

4.1.2.4"Daytime hot-water temperature" button

Sets the daytime hot-water temperature during the hot-water

§operational-readiness times in automatic mode and in the PARTY and HEATING operating modes. This set value also applies for exclusively hot-water operation (manual summer operation).

Setting

►Press § button.

►Set flashing hot-water temperature to the desired value by turning the input button î.

►Confirm set value by pressing the § button or the input button î.

Alternative: Automatic acceptance of the value after the set information time (see 4.1.2.7 "System information" button, pg. 26).

Factory setting 50 °C

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Operation	SDC / DHC

Setting range

One-time hot-water circuit loading

5 °C (hot-water economy temperature) ... Maximum hot-water heater temperature limit (service setting)

Pressing and holding (approx. 3 s) the § button brings you to the reload function, where the reload time can be set in minutes. With a reload time of 0 minutes, loading is started once and the hot-water tank is loaded to the daytime setpoint. The time for this superimposed hot-water circuit loading can be set between 0 and 240 minutes. The current week program is superimposed here.

4.1.2.5"Operating mode" button (basic display)

Sets the operating mode and returns to the basic display from every operating level.

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SDC / DHC

Operation

Overview of the operating modes

Symbol

Operating mode

Display

Setting

ABSENT

(P2, P3)*, return

date

PARTY

(P2, P3)*,

party end time

AUTOMATIC

(P2, P3)*

SUMMER

P1(P2, P3)*

HEATING

RED. HEATING

STANDBY

*P2 and P3 only after enabling, see "System Parameters" menu, parameter 2 = P1 to P3

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Operation	SDC / DHC

Setting

Return to the basic display

NOTE

4.1.2.5.1

Setting

Application

The selected operating mode appears in plain text, whereby a marking at the bottom edge of the display points to the respective operating mode symbol at the same time. In operating mode 1, the set value for all heating circuits is the same. In operating mode 2, the set value applies for the respective heating circuit. To set the operating mode, see 4.2.3.3 Operating mode, pg. 52.

►Press button.

►Select operating mode by turning the input button î. The marking is located above the corresponding operating mode symbol.

►Confirm set operating mode by pressing the button or the input button î.

►With short-term operating modes (ABSENT, PARTY), set the desired value by turning the input button î and confirm with the button or the input button î.

Alternative: Automatic acceptance of the value after the set information time (see 4.1.2.7 "System information" button, pg. 26).

Press the button for approx. 3 s to return to the basic display from any operating level.

Holiday mode is set via the "Switching time programs / Holiday programs" button (see 4.1.2.6 "Switching time programs / Holiday programs" button, pg. 23).

Absence mode (short-term program)

With the ABSENT operating mode, heating operation is temporarily deactivated and protected from frost during brief absences. During the absence, all heating circuits are adjusted to the specified lowered room temperature. Once the set time expires, the heating circuits automatically return to the operating mode that was active before the switch to the absence operation. Short-term programs such as PARTY or ABSENT are skipped here.

See 4.1.2.5 "Operating mode" button (basic display) , pg. 16

Short absence while heating operation is active.

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SDC / DHC	Operation

Cancellation An active absence program can be cancelled in case of early return.

►Press button.

►Turn input button î and switch to automatic operation. The active absence program has been cancelled.

Factory setting P1 as from activation

Setting range P1 (P2, P3) / 0.5 to 24 h to the current time

P1 (P2, P3)

Program-controlled resumption of heating operation. After activation of the absence program, heating operation is interrupted until the following switch-on time of the current automatic program P1 (or P2 or P3, if enabled).

0,5 ... 24 h

The set value is added on to the current time and represents the return time. When the absence program is called up again, the last set value is saved and suggested as the initial value.

Display An active absence program appears in the basic display with information on the return time.

4.1.2.5.2Party mode (short-term program)

Party mode causes one-time intermediate heating of all heating circuits up to a specified point in time and bridges an upcoming or already active absence cycle totally or partially. Once the set time expires, the heating circuits automatically return to the operating mode that was active before the party program. Short-term programs such as ABSENT or PARTY are skipped here.

Setting See 4.1.2.5 "Operating mode" button (basic display) , pg. 16

Application One-time extension of heating operation or intermediate heating during lowering operation outside the schedule.

Cancellation An active party program can be cancelled early.

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Operation	SDC / DHC

►Press button.

►Turn input button î and switch to automatic mode. The active party program has been cancelled.

Factory setting P1 as from activation

Setting range P1 (P2, P3) / 0.5 to 24 h to the current time P1

P1 (P2, P3)

Program-controlled resumption of heating operation. After activation of the party program, heating operation is continued until the following switch-on time of the current automatic program P1 (or P2 or P3, if enabled)

0,5 ... 24 h

The set value is added on to the current time and represents the end of the party time. When the party program is called up again, the last set value is saved and suggested as the initial value.

Display An active party program appears in the basic display with information on the party end time.

4.1.2.5.3Automatic mode

In automatic operation, max. three time programs with different heating operation times are available. They are called up during

start-up as factory-set and unlosable default programs P1, P2 or

P3 and can, if necessary, be overwritten with their own switching times in the "Timeprograms" menu (see 4.2.2 "Timeprograms" menu, pg. 34).

NOTE Default programs P2 and P3 cannot be selected until the PROGRAM = P1 to P3 parameter is enabled in the "System Parameters" menu. Without enabling, only program P1 is active.

Setting See 4.1.2.5 "Operating mode" button (basic display) , pg. 16

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