CTC Union GS 6-8 Installation And Maintenance Manual Download Page 6

6

CTC GS 6-8 

 

Heat settings

The product regulates itself to provide a constant, comfortable temperature 

throughout the year using the set heating curve. The curve may need to be 

changed using the touchscreen if the room temperature feels too cold or hot 

over time. For information on how to do this, see “Navigate touchscreen” 

on the previous page. Correction may be required for a few weeks after 

installation until the system has been matched to the building. For more 

information, see the Installation and Maintenance Manual, section: The house 

heating curve.

Examples of inclination values for different systems 

Floor 

heating 

only 

     inclination 

35 

Low temperature system (well insulated houses) 

 

inclination = 40 

Normal temperature system (factory setting)   

 

inclination = 50 

High temperature system (older houses, small radiators, poorly insulated)  inclination = 60

Example in image:

1. Inclination 50, Adjustment 0°

2. Inclination 40, Adjustment 0°

3. Inclination 50, Adjustment 5°

Find the right heating curve

•  The heating curve for the house is determined by two main factors: 

inclination and adjustment. These can be changed to fit the house’s 
energy needs for heating.

•  The house’s heating needs depend on: 

The size of the house (volume/area) 
Insulation 
Window area 
-> inclination and adjustment increase the more energy is required

•  Thermal conductivity of the radiators 

- Elements 
- Floor heating 
- Number of elements/surface for heat transfer 
-> inclination and adjustment decrease the faster energy is discharged

outdoor 

temperature

water temp. out on the elements

inclination

adjustment

Change inclination when 

outdoor temperature < 0°C

Change adjustment when 

outdoor temperature > 0°C

(inclination 50)

(inclination 40)

1

2

3

Summary of Contents for GS 6-8

Page 1: ... the pre pressure in the expansion tank 7 Regularly clean the dirt filter close off incoming tap water remove and clean the filter solenoid filter ball valve close off the flow to the heat pump remove and clean the filter 8 Set the correct heating curve for a comfortable room temperature check that the thermostat valves on the element or floor heating are set up correctly These may need to be open...

Page 2: ...e house Clean safe hot water The water in the tank as in the heat pump and radiators rises and is layered so that the hottest water surrounds the DHW heat exchanger where the tap water flows through quickly draws energy and flows out to the tap or shower This provides fresh hot water and minimises the risk of legionella bacteria Cooling module The energy in the bore hole bedrock or ground is drawn...

Page 3: ...n CTC GS 6 8 Options with CTC GS 6 8 In addition to the basic installation accessories are required such as Extra sensor mixing valve group 2 expansion card etc Volume tank CTC VT 80 may be required for some houses see installation manual for more information 1 ...

Page 4: ...e value Press to decrease value Arrow OK Press up arrow to increase value Press OK to save settings Press down arrow to decrease value Home screen Larm E055 Fel fasföljd Återställ larm Larm Fel fasföljd kompressor Återställ larm Green LED status OK Red LED alarm The serial number 12 digits can be found behind the display This number needs to be given to the installation engineer and CTC support in...

Page 5: ... lower temperatures on certain days Fine adjustment with no room sensor To allow the temperature to be changed even more use the coarse adjustment on the right Change hot tap water temperature For detailed information on other hot water settings please refer to the Installation and Maintenance instructions Control normal mode for hot water production Economic Small DHW requirement Normal Normal DH...

Page 6: ...tting inclination 50 High temperature system older houses small radiators poorly insulated inclination 60 Example in image 1 Inclination 50 Adjustment 0 2 Inclination 40 Adjustment 0 3 Inclination 50 Adjustment 5 Find the right heating curve The heating curve for the house is determined by two main factors inclination and adjustment These can be changed to fit the house s energy needs for heating ...

Page 7: ...the thermostat valves on the house s element are open in most rooms only adjust downwards in bedrooms for example Use the DHW chart for extra DHW to avoid high temperature operation when it is not needed Install a room sensor this provides more even heat and compensates for natural solar radiation or other natural heat sources Clean any dirt filters regularly a deterioration in water flow can incr...

Page 8: ...y valve function test Waste pipe connected to floor drain Electrical installation Omnipolar switch If the heat pump is installed heat pump activated and started Electric power kW and fuse adapted to the property in heating mode in hot water mode and backup mode Correct tight wiring Requisite sensors for selected system Outdoor sensor Room sensor optional Current sensor Accessories Information for ...

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