CTA Optiplus 3 Operating Manual

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Page 1

Operating manual

Optiplus 3 Heat pump controller

Page 2

No. Description Default

Cooling circuit 1

Operating mode CC1 -

Phase 1 On (Hours)

Operating mode CC1 -

KK101 Operating mode CC1 Off

KK102

Phase 1 On (Minutes)

Operating mode CC1 -

KK103

Phase 1 Off (Hours)

Operating mode CC1 -

KK104

Phase 1 Off (Minutes)

KK105

KK110 Room setpoint CC 1 24

Flow setpoint CC1 at 25°C

outside temperature

KK115

Flow setpoint CC1 at 35°C

outside temperature

KK116

KK117 Cooling limit CC1 at AT 24

Off

DHW charging nominal set-

point - Phase 1 On (Hours)

DHW charging nominal set-

point - Phase 1 On (Minutes)

DHW charging nominal set-

No. Description Default

TW101 Operating mode DHW Off

TW102

GK002 Setting time zone Bern

TW103

No. Description Default

Heating circuit 1

Frost pro-

HK101 Operating mode HC1

Domestic hot water

No. Description Default

Basic settings

GK001 Language Setting German

point - Phase 1 Off (Hours)

DHW charging nominal set-

point - Phase 1 Off (Minutes)

TW104

TW105

tection (Off)

Comfort mode HC1 -

Phase 1 On (Hours)

HK102

Domestic water re-charge

hysteresis

TW112

Phase 1 Off (Hours)

Comfort mode HC1 -

HK104

TW113 Legionella temperature 60

Phase 1 Off (Minutes)

HK105

TW110 Nominal setpoint DHW 51

TW111 Reduced setpoint DHW 40

Comfort mode HC1 -

Phase 1 On (Minutes)

Comfort mode HC1 -

HK103

Activation of the legionella

program

TW115

HK110 Comfort setpoint HC1 20

TW116 Legionella program day Fridays

Frost protection setpoint

HK111 Reduced setpoint HC1 19

TW117 Legionella program start time 2

HC1

HK112

HK113 Slope heating curve HC1 0.8

HK114 Offset heating curve HC1 0

Heating limit heating circuit 17

HK115

2 Subject to technical changes © CTA 10/2016 www.cta.ch

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User

Settings for specialist personnel

TW115

TW116

TW117

TW101

TW102

TW103

TW104

TW105

TW110

TW111

TW112

TW113

HK113

HK114

HK115

HK101

HK102

HK103

HK104

HK105

HK110

HK111

HK112

Specialist

Home

Software

and OS

Version

Controller

type

GK001

GK002

Password

entry

Date

Time

3 Sec.

TW015

TW016

TW017

KK101

KK102

KK103

KK104

KK105

KK110

Arrow Up – Scroll back as

well as increase values.

Arrow Down – Scroll forwards

as well as reduce values.

Esc/Back – Cancel entries as well as back to the

previous level.

Enter/Confirm – Selection of parameters, confirming

entries as well as calling up selected levels.

Alarm key – Flashes when alarm is activated. Press in order to

Program key – Returns to the start screen from any level.

(Key pressed for 3 seconds: Basic settings / Password entry)

access the alarm description and to RESET the alarms.

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Kindly read this first

This operating manual gives you important information about handling the unit. It is a part of the product and must be kept ready to hand right next to the unit. It must be kept available during the entire life of the unit. It must be handed over to subsequent owners of the unit.

Read this operating manual before starting any work on and with the unit. Particularly the safety chapter. Follow all instructions completely and absolutely.

This operating manual may perhaps include descriptions, which may appear to be incomprehensible and unclear. For queries and doubts, contact the factory customer service or the concerned on-site partner of the manufacturer.

Since this operating manual has been prepared for several types of units, parameters applicable for the relevant unit type must be complied with. The operating manual is solely intended for personnel dealing with the unit. Treat all constituent parts confidentially.

They are copyright protected. They may not be reproduced, transmitted, copied, saved in electronic systems or translated into another language either partially or completely without the written consent of the manufacturer.

Hunzikenstrasse 2 CH-3110 Münsingen Telephone +41 (0)31 720 10 00 Fax +41 (0)31 720 10 50 [email protected] www.cta.ch

Disclaimer

The manufacturer is not liable for damages on account of use contrary to the intended use. Liability of the manufacturer ceases furthermore:

if work is performed on the unit and its components contrary to the specifications in this operating manual. if work is perfomed improperly on the unit and its components. if work not described in this manual is performed on the unit and this is not expressly approved by the manufacturer

in writing. if the unit or the components in the unit are modified, retrofitted or dismounted without the express written consent

of the manufacturer.

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Table of contents

1 Safety 6

1.1 Classiﬁcation of risks 6

1.2 Symbols used 6

1.3 Summary of risks 7

2 Intended use 8

2.1 Operation 8

2.2 Intended purpose 8

2.3 Customer service 8

2.4 Warranty / Guarantee 8

2.5 Disposal 9

2.6 Care of the unit 9

2.7 Maintenance of the unit 9

3 Basic information on operation 10

3.1 Control unit and keys 10

3.1.1 Start screen 11

3.1.2 General navigation 12

3.1.3 Change parameters 12

3.2 Heating mode 13

3.2.1 Operating mode Heating circuit 1 13

3.2.2 Heating circuit setpoint 14

3.2.3 Heating circuit heating curve 15

3.3 Domestic hot water mode 18

3.3.1 Operating mode DHW 18

3.3.2 Setpoints 20

3.3.3 Legionella program 20

3.4 Cooling mode 21

3.4.1 Operating mode Cooling circuits 21

3.4.2 Cooling circuit setpoints 22

3.4.3 Cooling characteristic curve 23

3.4.4 Cooling limit 23

3.5 Information 24

3.6 Settings 25

3.7 Error messages 25

3.7.1 Reset faults 25

3.7.2 Summoning the service organisation 25

3.8 Further functions 26

3.8.1 Software / regulation 26

3.8.2 Languages 26

3.8.3 Time, date and network information 26

3.8.4 Service level 26

4 Index 27

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1 Safety

The unit is safe to operate when operated in accordance with its designated use. Design and execution of the unit complies with the current state of the art, all relevant EN regulations and all relevant safety regulations.

Each person working on the unit must have ready and understood the operating manual prior to starting work. This also applies to persons who have already worked on such or similars units or have been trained by the manufacturer.

1.1 Classiﬁcation of risks

DANGER

WARNING

CAUTION

NOTICE

1.2 Symbols used

This symbol warns of risk from dangerous electric voltage.

Increased

This symbol warns of dangers, non-compliance of which may lead to extensive property damage.

DANGER TO LIFE due to electric shock.

For imminent danger, which may lead to severe bodily injuries or death.

For a potentially dangerous situation, which may lead to severe bodily injuries or death.

For a potentially dangerous situation, which could lead to severe bodily injuries or death. May also be used as warning for property damages.

For a potentially harmful situation. Indicates important features for proper handling of the system.

This symbol warns of burns and scalds.

This symbol indicates inﬂammable substances.

This symbol shows tips and information for optimum use of the system.

This symbol indicates risk of injury to hands.

This symbol indicates substances harmful to health.

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Safety

This symbol indicates reuse and disposal of the unit.

This symbol is for advice which help save energy, raw materials and costs.

This symbol refers to other documents of the manufacturer.

This symbol refers to other sections in the operating manual.

1.3 Summary of risks

Safety guidelines stated here cover all important topics. Therefore, read the manual carefully and attentively. All actions described in this manual must be performed by a technician according to the applicable legislation. Wear appropriate protective equipment (safety gloves, safety goggles, etc.) when performing work related to instal-

lation, maintenance or servicing of the unit. If you have queries related to the installation procedure or operation of the unit, contact your local dealer for advice

and information. Improper installation or placement of the unit or accessories may lead to electric shock, short circuit, leakages, fire

and other damages. Use only accessories and optional equipment from CTA, which are specially developed for use with the products, which are the subject of this manual and have these installed by a installer.

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2 Intended use

CAUTION

2.1 Operation

The existing manual serves correct installation and setting of the heat pump. Likewise, this manual serves as a basis for the guarantee terms to be complied with by the operator, which is a

requirement for maintenance-free operation. On violating the guarantee terms and after expiration of the guarantee period, the manufacturer of the heat pumps

does not undertake any responsibility for electrical defects. Guarantee lapses in case of interventions not explicitly authorised and performed in violation of the existing manual. In-house safety regulations apply during the installation.

The existing manual and the connection of the terminal plan of the heat pump are to be preserved with due diligence and provided to the specialist personnel if required.

For all types of repair works, the operator of the heat pump is instructed to contact his specialist partner, who appoints a technical customer service authorised by the manufacturer for the servicing of the heat pump.

Non-compliance of the above stated information may adversely affect the safety of the unit.

CAUTION!

The manufacturer does not undertake any liability for personal injury or property damage resulting due to direct or indirect non-compliance of the existing manual.

2.2 Intended purpose

The unit must be used for the intended purpose only. That means in conjunction with a heat pump Optiheat Inverta: for controlling and monitoring the heat pump

for regulating the heating groups for regulating the hot water preparation

The unit must be operated only within its technical parameters.

2.3 Customer service

For technical information, kindly contact your expert technician or the concerned on-site partner of the manufacturer.

2.4 Warranty / Guarantee

Warranty provisions and guarantee terms are in your purchase documents.

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Intended use

CAUTION

2.5 Disposal

CAUTION!

Reuse / disposal When decommissioning the old unit on-site, comply with the applicable guidelines and standards for recycling,

reuse and disposal.

2.6 Care of the unit

You can use a damp cloth and standard cleaning products to clean the outer surfaces of the unit. Do not use cleaning or care products that contain abrasives, acids and/or chlorine. Such products would irreparab-

ly damage the surfaces and could also cause technical damage to the unit.

2.7 Maintenance of the unit

The heating and heat pump controller requires no regular maintenance.

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3 Basic information on operation

3.1 Control unit and keys

CTA controller with following features

• Display lights up, for status and function display

• Presetting standard program, setpoint, date, time

• Automatic switching between summer / winter time

• Preset standard time program for heating and domestic hot water preparation

• Complete controlling and monitoring of theheat pump including domestic hot water in one device

• Info page for quick request of themost important temperature and system states

• Integrated operating hours counter

• Thermal disinfection of domestic hot water (legionella mode)

• Probe protection function

• Emergency operation and frost protection function

• Configuration menu for all established hydraulic controls

• Guided commissioning assistance

• Browser-based configuration tool

• Continuous recording (data log) of the most important operating parameters for service and maintenance, as well as operation analysis

Legend for abbreviations:

HP Heat pump BC Basic configuration EW Electric utility Eco Protection functions activated HC Heating circuit DHW Domestic hot water CC Cooling circuit

Display

Alarm key – Flashes when alarm is activated. Press in order to access the alarm description and to RESET thealarms.

Program key Start screen – Returns to thestart screen from any level. (Key pressed for 3 seconds: Basic settings / Password entry)

Esc / Back – Cancel entries as well as back to the previous level.

Arrow Up – Scroll back as well as increase values.

Enter / Confirm – Selection of parameters, confirming entries as well as calling up levels previously selected using thearrow keys.

Arrow Down – Scroll forwards as well as reduce values.

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3.1.1 Start screen

Basic information on operation

1: Navigation bar

The navigation bar can be used to access the main operating levels displayed using the arrow keys.

NOTE The levels „Information“ and „Settings“ are protected by password in some cases and can only

be accessed by qualified specialist personnel.

Start screen

Heating mode

Domestic hot water mode

Cooling mode

Information

Settings

2: Date & Time

The current settings can be adapted using the Program key

3: Status display

Outside temperature

Compressor status (ON/OFF/Blocked)

Outside temperature

- The current outside temperature, measured using theexternal sensor

Operating mode Heating / DHW / Cooling

- The current active operating mode for theheating, DHW and cooling mode are displayed respectively

(keep pressed for 3 seconds).

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Basic information on operation

Active priority control

NOTE Heating, DHW and cooling modes can never be carried out at thesame time. This symbol indi-

cates which mode is currently being operated.

- Heating symbol → Heating mode is active, water tap symbol → DHW mode is active or

cooling symbol → cooling mode is active The current regulating temperature is displayed for this purpose

- Nominal: Current nominal temperature required from all active consumers

Compressor status

- The compressor symbol rotates

- The compressor symbol is stationary

→ The heat pump is in operation

→ The heat pump is not in operation

NOTE More displays for the current state are represented in the operating level „Information“.

4: External release Draw wish / forced appears in case of increased heat demand. (Operation with SG Ready).

External blocked appears when, e.g., EW block is active. The compressor symbol is crossed-out

3.1.2 General navigation

1: Operating level

2: Current screen / number of screens on this level

3: Number of parameter selected

4: Umbrella term of theparameter of this mask

5: Parameter selection

6: Parameter designation (parameter selected, - parameter

that can be selected)

7: Parameter value

3.1.3 Change parameters

1 2 3

In order to change a parameter or the operating mode, this (these) must be selected on the respective mask

using the arrow keys

When pressing the arrow keys you can now change the functions or values. When pressing the Enter

key , changes are confirmed and the parameter is no longer highlighted black.

Several parameters such as, e.g., the time are changed in two steps. When pressing the Enter key , in

this case you access the hours and by pressing again, you access the minutes. Pressing Enter completes the changes.

. Press Enter to select the parameter. This is then highlighted black.

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for a third time

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3.2 Heating mode

Heating circuits

No.* Screen display Description

HK101 Operating mode HC1 Operating mode heating circuit 1

HK102/HK103

HK104/HK105

HK110 Comfort setpoint HC1 Comfort setpoint heating circuit 1 20 °C HK111 Reduced setpoint HC1 Reducted setpoint heating circuit 1 19 °C HK112 Frost protection HC1 Frost protection setpoint heating circuit 10 °C HK113 Slope heating circuit HC1 Slope heating curve heating circuit 0.8 HK114 Offset heating curve HC1 Offset heating curve heating circuit 0 K HK115 Heating limit HC1 Heating limit heating circuit 17 °C

Hours/Minutes comfort phase 1 -

Basic information on operation

In the chapter Heating you can change between the individual operating

modes, set the time program as well as carry out settings to the heating curve. Using the ENTER key , you can access the parameters that can be edited. These settings can be carried out for all available heating circuits separately.

Comfort mode heating circuit 1 -

On HC1

Comfort mode heating circuit 1 -

Off HC1

Phase 1 On

Phase 1 Off

Default

value

Frost protection

(Off)

06:00 h/min

22:00 h/min

Unit

* HK1xy = Heating circuit 1, HK2xy = Heating circuit 2, HK3xy = Heating circuit 3, ...

3.2.1 Operating mode Heating circuit 1

The operating mode and the time window of the comfort phase can be set in mask 1/6.

No. Screen display Description

HK101 Operating mode HC1 Operating mode heating circuit 1

You can select between the following operating modes:

Automatic mode (Auto):

Automatic mode regulates the room temperature according to the defined time window. Within the time window, heating is carried out using the comfort setpoint (e.g., during the daytime) and outside the time window, using the reduced setpoint (e.g., overnight).

Comfort or reduced mode:

These are continuous operating modes that keep the room temperature constant at the level selected. This is either the comfort or reduced setpoint. No time program is active.

Off / Frost (Protective mode):

In Off / Frost mode, the heater is switched off. However, it remains protected against frost (frost protection temperature, factory setting +10°C), whereby the voltage supply must not be interrupted.

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NOTICE

Time

Phase 1 ON

Phase 1 OFF

Phase 1 ON

Phase 1 OFF

Basic information on operation

NOTE The Eco function is switched into automatic mode automatically when the device switches to

summer mode. (Operating mode Eco, Summer and Off / Frost (Protective mode) are identical.

Heating emergency mode:

In event of operational interruptions, theheat pump can be operated using an additional heat generator. The emergency mode is regulated to thecurrent setpoint according to theheating curve set.

NOTE If emergency mode is demanded without valid electric heating element, an alarm message is

displayed and operation is interrupted.

WARNING!

Your heating installer must be informed when you are using the emergency mode.

No. Screen display Description

HK102/HK103 Hours/Minutes comfort phase 1 - On HC1 Comfort mode heating circuit 1 - Phase 1 On HK104/HK105 Hours/Minutes comfort phase 1 - Off HC1 Comfort mode heating circuit 1 - Phase 1 Off

These parameters define thetime window for thecomfort phase in automatic mode (see graphic below).

3.2.2 Heating circuit setpoint

No. Screen display Description

HK110 Comfort setpoint heating circuit 1 Set the setpoint during the comfort phase HK111 Reduced setpoint heating circuit 1 Set the setpoint outside the comfort phase (reduced value)

HK112

Frost protection setpoint heating

circuit

[HK002/HK003]

Set the frost protection value when the heating mode is switched off

[HK004/HK005]

[HK002/HK003]

[HK004/HK005]

T [°C]

Comfort setpoint

[HK010]

06:0000:00 06:0022:00 22:00

Subject to technical changes © CTA 10/2016 www.cta.ch

Reduced setpoint

[HK011]

Comfort setpoint

[HK010]

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Basic information on operation

3.2.3 Heating circuit heating curve

The setpoint for the heating flow is calculated using the current outside temperature and the set heating characteristic curve. Now the flow temperature of the heating circuit should be regulated to this setpoint. The heating characteristic curve can be adapted so that the heating output and therefore room temperature act according to your personal requirements. This is carried out in mask 3/6.

No. Screen display Description

HK113 Slope heating curve HC1 Slope characteristic curve

The flow temperature changes more stronger with the slope, the lower the outside temperature is. A crucial factor for the optimum value of the slope are the building shell and type of heating. The better the building shell and more efficient the heating, the lower the slope can be set. The following graphic indicates this:

VL (Slope 1.1)

Flow temperature in°C

-20 -15 -10 -5 0 5 10 15 20 25

VL (Steigung 1.1)

VL (Slope 0.8)

VL (Steigung 0.8)

VL (Slope 0.5)

VL (Steigung 0.5)

Outside temperature mixed in°C

Example:

- Slope 0.5 (e.g. new building)

In the graphic, you can find three exemplary curves at 20°C outside temperature at the same point. The lower the outside temperature drops, the flow temperature generated that has to be provided by the heat pump is higher depending on the slope. The more efficient the heating system is, the lower the flow temperature can be, and therefore also the slope. The room temperature, however, remains the same in all three cases.

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Basic information on operation

No. Screen display Description

HK114 Shift heating curve HC1 Characteristic curve shift

If the room temperature is generally too warm or too cold, this can be corrected by a parallel shift.

Example:

If the comfort setpoint is set to 22°C and only 20°C is always measured in the room, this deviation can be corrected by increasing the parameter shift (HK114) by 2K. Now the effective room temperature corresponds with the set comfort setpoint.

Flow temperature in°C

-20 -15 -10 -5 0 5 10 15 20 25

Comfort setpoint 22°C

Komfortsollwert 22°C

Komfortsollwert 20°C

Comfort setpoint 20°C

Outside temperature mixed in°C

If the effective room temperature deviates even more from the set comfort setpoint the lower the outside temperature drops, the slope (HK113) can easily be adapted in the direction required.

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Basic information on operation

No. Screen display Description

HK115 Heating limit HC1 Heating limit

Where required, the heating limit can be edited via parameter HK115.

T [°C]

OFF

Averaged outside temperature (Ø 24h)

Heating limit [HK015]

Summer / Winter

Time

T Outside temperature in °C ON Heating On => Winter OFF Heating Off => Summer

Example (see graphic above):

From an outside temperature of 17°C, the heating limit has exceeded and the device runs in Eco mode and does not heat. If the averaged otuside temperature drops below 17°C over the last 24 hours, the device switches back to winter mode and starts to heat.

NOTE Wait at least 2 hours after each correction so that the room temperature can be adapted.

Summer / winter time switchover:

The function summer / winter time switchover switches the heating off if the averaged outside temperature exceeds the set heating limit. The heating switches back on once the averaged outside temperature falls below the switching temperature.

In summer mode, the heating automatically switches to protective mode. The symbol ECO appears on the display. The domestic hot water production is still guaranteed.

NOTE The summer / winter time switchover functions only in automatic mode. „Eco/Summer“ appears in

the display. The outside temperature is averaged to consider the dynamics of the building.

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Basic information on operation

3.3 Domestic hot water mode

In the chapter Hot water you can switch on the domestic hot water

operating mode and define the time program. Using the ENTER key you can access the parameters that can be edited.

When there is a demand for the domestic hot water charging, the heat pump is put into operation. This now heats the domestic water to the desired setpoint. After reaching the setpoint, the heat pump switches off or, where required, to heating mode.

Domestic water

No. Screen display Description

TW101 Operating mode DHW Operating mode domestic water Off -

TW102/TW103

TW104/TW105

TW110 Nominal setpoint DHW Nominal setpoint domestic water 51 °C TW111 Reduced setpoint DHW Reduced setpoint domestic water 40 °C TW112 DHW hysteresis Domestic water re-charge hysteresis 6 K TW113 Legio-temp. Legionella temperature 60 °C TW115 Activation Activation of the legionella program Off TW116 Per. Legionella program day Fridays TW117 Charge from Legionella program start time 02:00 h

Hours/Minutes comfort phase 1 -

On DHW

Hours/Minutes comfort phase 1 -

Off DHW

DHW charging nominal setpoint -

Phase 1 On

DHW charging nominal setpoint -

Phase 1 Off

Default

value

22:00 h/min

04:00 h/min

Unit

3.3.1 Operating mode DHW

The operating mode and the time window of the comfort phase can be set in mask 1/4.

No. Screen display Description

TW101 Operating mode DHW Operating mode domestic water

You can choose between the following operating modes via parameter TW101:

Domestic water mode ON:

The domestic water mode heats according to a defined time window. Heating is carried out to the nominal setpoint within the time window (e.g., overnight). The heating outside the time window is only carried out to the reduced setpoint.

Domestic water mode OFF:

No domestic water preparation.

Domestic water Push (Domestic water – quick charging):

If the function is selected, an immediate heating of the domestic hot water is carried out to the configured legionella temperature. After reaching the desired temperature, the operating mode is automatically reset to the last setting.

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NOTICE

Basic information on operation

NOTE A periodic heating to legionella temperature can be activated using the legionella program „3.3.3

Legionella program“ on page 20

No. Screen display Description

TW102/103

TW104/105

These parameters define the time window for the nominal setpoint in Domestic water mode ON.

Operating mode temporarily OFF

With planned longer absence, the DHW mode can be switched off temporarily. Restoring the DHW mode is carried out using the set date.

1 2

Hours/Minutes comfort phase 1 -

On DHW

Hours/Minutes comfort phase 1 - Off

DHW

Comfort phase DHW On

Comfort phase DHW Off

DHW emergency mode:

In event of operational interruptions, the heat pump can be operated using an additional heat generator. The emergency mode is regulated to the current setpoint according to the DHW setpoint set.

NOTE If emergency mode is demanded without valid electric heating element, an alarm message is

displayed and operation is interrupted.

WARNING!

Your heating installer must be informed when you are using theemergency mode.

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Time

Phase 1 ON

Phase 1 OFF

Phase 1 ON

Basic information on operation

3.3.2 Setpoints

The domestic water can be conducted according to the nominal or reduced setpoint. These can be edited via mask 2/4 and the parameters TW110 und TW111. The hysteresis (TW112) is the deviation that the domestic hot water may have from the setpoint before the heat pump starts heating.

No. Screen display Description

TW110 Nominal setpoint DHW Nominal setpoint domestic water TW111 Reduced setpoint DHW Reduced setpoint domestic water TW112 DHW hysteresis Domestic water re-charge hysteresis

Example:

The device operates in reduced mode, 47°C is configured as reduced setpoint. Hot water is consumed, the temperature drops in the storage tank. The hysteresis is set with 5K. The device therefore starts with the hot water production as soon as the temperature in the storage tank falls below 42°C (47°C – 5K = 42°C).

[TW002/TW003]

T [°C]

Nominal setpoint

[TW010]

20:00 20:0005:00

[TW004/TW005]

[TW002/TW003]

Reduced setpoint

[TW011]

3.3.3 Legionella program

No. Screen display Description

TW113 Legio-temp. Legionella temperature TW115 Activation Activation of the legionella program TW116 Per. Legionella program day TW117 Charge from Legionella program start time

In the mask TWW 3/4, the legionella mode can be switched on or off as well as defined. If the activation is set to ON (TW115), the heat pump heats the storage tank to the desired legionella temperature (TWW113) on the defined week day or daily (TW116) at the selected time (TW117).

NOTE „Legio/act.“ appears in the display when legionella charging is active.

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3.4 Cooling mode

Cooling circuits

Basic information on operation

In the chapter Cooling you can change between the inidivual operating

modes, set the time program as well as carry out settings to the cooling limit and flow setpoints. Using the ENTER key , you can access the parameters that can be edited. These settings can be carried out for all available cooling circuits separately.

No.* Screen display Description

KK101 Operating mode CC1 Operating mode cooling circuit 1 Off

KK102/KK103

KK104/KK105

KK110 Room setpoint CC1 Room setpoint cooling circuit 1 24 °C

KK115 Flow CC1 at 25°C AT

KK116 Flow CC1 at 35°C AT

KK117 Cooling limit CC1 Cooling limit cooling circuit 1 at AT 24 °C

* KK1xy = Cooling circuit 1, KK2xy = Cooling circuit 2, KK3xy = Cooling circuit 3, ...

Hours/Minutes phase 1 -

On CC1

Hours/Minutes phase 1 -

Off CC1

Operating mode cooling circuit 1 -

Phase 1 On

Operating mode cooling circuit 1 -

Phase 1 Off

Flow setpoint CC1 at 25°C outside

temperature

Flow setpoint CC1 at 35°C outside

temperature

Default

value

06:00 h/min

22:00 h/min

20 °C

18 °C

3.4.1 Operating mode Cooling circuits

The operating mode and the time window of the comfort phase in cooling mode can be set in mask 1/6.

Unit

No. Screen display Description

KK101 Operating mode CC1 Operating mode cooling circuit 1

You can select between the following operating modes:

On:

The cooling function is activated and regulates the cooling demand automatically according to the defined time window, as soon as the day cooling limit is exceeded.

Off:

The cooling function is deactivated.

NOTE The regulation is only active during summer (Summer/Eco) or frost protection mode (Off/Frost) of

the heating operation.

No. Screen display Description

KK102/KK103 Hours/Minutes phase 1 - On CC1 Operating mode cooling circuit 1 - Phase 1 On KK104/KK105 Hours/Minutes phase 1 - Off CC1 Operating mode cooling circuit 1 - Phase 1 Off

These parameters define the time window for the the comfort phase in cooling mode.

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Basic information on operation

3.4.2 Cooling circuit setpoints

No. Screen display Description

KK110 Room setpoint CC1 Room setpoint cooling circuit 1

Example:

with cooling characteristic curve KK115 20°C, KK116 16°C and cooling limitation 24 °C

Room setpoint (KK110) 26°C

Raumsollwert (KK110) 26°C

Room setpoint (KK110) 24°C

Raumsollwert (KK110) 24°C

Betriebsart Kühlkreis (KK101) Ein

Operating mode cooling circuit (KK101) On

Minimalbegrenzung

Minimum limit

Flow temperature in°C

10 15 20 25 30 35 40

Outside temperature mixed in°C

With the cooling function being set, the cooling demand is determined according to the mixed outside temperature. The cooling mode is activated when exceeding the set cooling limit (KK117). The operating mode is regulated based on the current setpoint temperature in the cooling circuit. The setpoint cooling circuit is determined with the following setting parameter depending on the outside temperature.

Cooling limit

Kühlgrenze

aktiv

active

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NOTICE

Basic information on operation

3.4.3 Cooling characteristic curve

No. Screen display Description

KK115 Flow CC1 at 25°C AT Flow setpoint CC1 at 25°C outside temperature KK116 Flow CC1 at 35°C AT Flow setpoint CC1 at 35°C outside temperature

The cooling setpoint depending on the outside temperature is defined with the setpoints at an outside temperature of 25°C and 35°C. The cooling characteristic curve is adjusted with the room setpoint and is limited by the defined minimum characteristic curve to avoid formation of condensation.

Flow setpoint at 25°C AT

Determines the flow temperature required for cooling at a mixed outside temperature of 25°C.

Flow setpoint at 35°C AT

Determines the flow temperature required for cooling at a mixed outside temperature of 35°C.

WARNING!

The setting of the minimum cooling characteristic curve must be adjusted by specialist personnel. The responsibility for protection from damages due to formation of condensation must be assumed by the appropriate installer.

3.4.4 Cooling limit

No. Screen display Description

KK117 Cooling limit CC1 Cooling limit cooling circuit 1 at AT

The cooling mode is activated above the cooling limit temperature and regulates the required flow temperature for the appropriate cooling circuit. The cooling limit is compared with the mixed outside temperature. The cooling limit must be higher than the summer/winter switchover temperature.

Increasing the cooling limit

• Later switchover to cooling mode

• Earlier switchover to cooling mode off

Lowering the cooling limit

• Earlier switchover to cooling mode

• Later switchover to cooling mode off

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Basic information on operation

3.5 Information

The current measurement or setting values of diverse parameters can be read from the level „Information“. The level is only for displaying, parameters cannot be edited.

The following items can be viewed under „Information“:

• Sensor HP heating circuit

• Sensor HP source and minimum source temperature since commissioning

• Domestic hot water

• Buffer storage

• State circulation pumps and flow

• if available: Mixer groups and heating buffer

• Operating hours, number of starts and speed range compressor

• Optional: if energy meter available, energy meter and performance factor

Example: Flow and return temperature of the heating

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Basic information on operation

NOTICE

3.6 Settings

Via the level settings, those parameters can be edited that are mainly required for the commissioning or in special cases.

The level settings can only be accessed by specialist personnel.

3.7 Error messages

If the alarm key flashes, there is a system error present. Press the alarm key and read the further details.

NOTE Some alarm messages are reset automatically and are recorded accordingly with an entry in the

alarm memory.

Example:

1 2

3.7.1 Reset faults

Error messages of the heat pump can be reset or acknowledged using the alarm key . Pressing the key for longer than 3 seconds triggers a RESET of the heat pump.

WARNING!

If an alarm cannot be acknowledged or reoccurs again after a short period, the responsible service organisation must be summoned in all cases.

3.7.2 Summoning the service organisation

Before calling the service organisation / customer services, note the following items:

• Serial number

• Error number and error designation

• Pressure from the heat source and heating system (pressure gauge)

NOTE First always refer to your heating installer.

By pressing the alarm key and then the Enter key , alarms that have already triggered can be called up. The arrow keys

the alarm, the number of occurring alarms (record) as well as several parameter values at the time of the alarm are displayed.

can be used to scroll through the different alarms. The alarm designations, date and time of

Example:

Page 26

Basic information on operation

3.8 Further functions

The following settings can be adapted using the program key (keep pressed for 3 seconds).

3.8.1 Software / regulation

Versions of the software or operating system stored on the controller can be called up here. Where required, these can be provided to customer services.

3.8.2 Languages

The following languages are available.

• German

• English

• French

3.8.3 Time, date and network information

The controller has an annual clock that contains the time, the weekday and the date. To guarantee the function of the heating program, the time and the date must be set correctly. The next pages contains information about the network settings.

• Format date

• Date

• Time

• Time zone

1 2

3.8.4 Service level

NOTE Passwords are only made available to specialist personnel on request.

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4 Index

Alarms ..............................................................................................................................................................

Automatic mode .........................................................................................................................................

10, 25

13, 14, 17

Care of the unit .........................................................................................................................................................

Classiﬁcation of risks ................................................................................................................................................

Comfort phase ...........................................................................................................................................

Commissioning .......................................................................................................................................................

Control unit and keys ..............................................................................................................................................

Cooling mode .........................................................................................................................................................

Copyright .................................................................................................................................................................

Customer service .....................................................................................................................................................

14, 18, 21

Date .....................................................................................................................................................

Disclaimer .................................................................................................................................................................

Disinfection. see alsolegionella program

Disposal .............................................................................................................................................................

10, 11, 19, 26

9, 11

Emergency operation .................................................................................................................................

Error messages ......................................................................................................................................................

External blocked .....................................................................................................................................................

10, 14, 19

9 6

25 10 21

4 8

25 12

Flow .......................................................................................................................................................................

Frost protection setpoint ...................................................................................................................................

13, 14

Guarantee ................................................................................................................................................................

Guarantee terms .......................................................................................................................................................

Heating circuit ..................................................................................................................................................

Heating limit ............................................................................................................................................................

Hysteresis ...............................................................................................................................................................

13, 14

Intended purpose .....................................................................................................................................................

Languages .............................................................................................................................................................

Legionella program ...........................................................................................................................................

Legionella temperature .....................................................................................................................................

18, 20 18, 19

8 8

17 20

Maintenance of the unit ............................................................................................................................................

Navigation bar ........................................................................................................................................................

Nominal setpoint ..............................................................................................................................................

18, 19

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Index

Operating modes ..............................................................................................................................................

Operation .................................................................................................................................................................

13, 21

Password entry ......................................................................................................................................................

Protective mode .........................................................................................................................................

13, 14, 17

Re-charge hysteresis ..............................................................................................................................................

Reduced mode .................................................................................................................................................

Reduced value .......................................................................................................................................................

13, 20

Safety ...................................................................................................................................................................

Setpoint ................................................................................................................................................

Settings ......................................................................................................................................................

Slope characteristic curve .......................................................................................................................................

Software .................................................................................................................................................................

Status display .........................................................................................................................................................

Summer / Winter time switchover ...........................................................................................................................

Symbols used .......................................................................................................................................................

10, 14, 20, 22

6, 7

11, 25, 26

6, 7

15 26 11 17

Time ...............................................................................................................................................

10, 11, 12, 20, 26

Warranty ...................................................................................................................................................................

Page 29

Notes

Page 30

Notes

Page 31

Notes

Page 32

Bern CTA AG

Hunzikenstrasse 2 CH-3110 Münsingen www.cta.ch

10/16 Item no. D3215 Subject to technical changes