CTC Union GS 6-8 Installation And Maintenance Manual Download Page 2

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CTC GS 6-8 

 

Touchscreen

All product settings are set up via the touchscreen. Set the heat and hot 

water settings here.

Outdoor sensor

Measures outdoor temperature; placement 

should not be in direct sunlight or where 

the measured outdoor temperature may be 

misleading. The outdoor sensor provides the 

product with information on the current need 

for heat.

Room sensor

Measures indoor temperature and finely 

adjusts the heating curve so that the product 

runs more evenly. The room sensor is optional 

and the product can work using only the 

heating curve. The room sensor should 

preferably not be activated until the heating 

curve has been completely adjusted. The 

room sensor is fitted at a central point in the 

house, in the most open position possible. 

This is the best position for the sensor to 

record an average temperature for the 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 up by the cooling system. The compressor then increases 

the temperature to a usable level. Afterwards it releases the energy for 

the heating system and hot water. Remember that the brine fluid must be 

checked and refilled as needed.

Electrical operation

The product can also provide both heating and hot water to the building 

when running on electricity only. With the heat pump connected, the 

immersion heater works to provide additional heat as needed only. The 

touchscreen can be used to set whether the immersion heater goes in and 

with how much power.

Touchscreen

DHW heat 

exchanger

Electrical 

heat

Hot water 

tank

Cooling 

module

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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