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Summary of Contents for Gebwell GEMINI 40
- Page 1 Installation, Operation and Maintenance Manual GEMINI Heat Pump W W W. GE B WEL L . F I...
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Page 2: Table Of Contents
Connection of additional heat source ............................24 FILLING AND VENTING ..............................25 Heating system ..................................25 Filling the collector, non-pressurised ............................25 Pressure test of the collector ..............................25 Gebwell Gemini Installation, operation, and maintenance manual... - Page 3 Venting of the collector’s horizontal piping ..........................25 Cleaning the collector filter ..............................26 ACTIVATING THE HEAT PUMP ............................26 10.1 Before activation ..................................26 10.2 Activation ....................................26 ...
- Page 4 Fill out the information below. This information must be available if the device experiences any failures. Model: Serial number: HVAC company: Name: Date: Tel.: Electrician: Name: Date: Tel.: Gebwell Gemini Installation, operation, and maintenance manual...
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Page 5: Warranty
1 WARRANTY Gebwell Ltd. Patruunapolku 5, 79100 LEPPÄVIRTA, tel 020 1230 800, info@gebwell.fi issues the product, GEMINI heat pump a warranty regarding manufacturing and material faults, with the following contents. Warranty period and start date The warranty does not extend to direct personal injuries or dam- age to property caused by the delivered product. - Page 6 Maintenance work for this product, during the warranty period and after the warranty period, is performed by the maintenance Gebwell Ltd. is not liable for the breakdown of a wrongfully in- organization authorised by the manufacturer, throughout the en- stalled device.
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Page 7: Installation Record
2 INSTALLATION RECORD The heating system must be inspected before commissioning following in-force regulations. Only qualified persons may conduct the in- spection. The below installation record must be filled out before handing the device over to the end user. The completed installation record is also a condition for the validity of the warranty. -
Page 8: Heat Pump Operating Instructions
More information on heat collection systems and their scaling A heat pump collects heat from the ground and transfers it inside can be found on the website of Gebwell Ltd. and the Finnish the building. The heat can be collected using pipes sunk in a Heat Pump Association. -
Page 9: Heating Functions
The hot refrigerant is conveyed to the condenser, where the heat MIXING HEATING CIRCUIT: energy of the refrigerant is transferred to the water circulating in the building’s heating system. The refrigerant condenses into liq- The heating circuit’s output water set point is calculated in ac- uid upon releasing heat energy. -
Page 10: Delivery And Handling
Never compromise safety by bypassing safety de- locations. Only lift the heat pump by the pallet. The pump must vices be transported on the pallet all the way to the installation loca- tion. Gebwell GEMINI... -
Page 11: Heat Pump's Location
Mounting and unmounting the upper compressor unit For ease of installation Gebwell Gemini is delivered without the upper compressor unit being mounted. The upper compressor unit must be mounted only after the heat pump has been placed on a solid installation platform and adjusted in a horizontally and vertically level position. -
Page 12: Heat Pump Structure
1 (F1) User terminal controller 1 (Master device) Compressor1 U. Expansion valve 1 V. Brine out device 2 W. Brine in device 2 X. Soft-starter / compressor’s motor protection switch device 2 (F2) Y. Compressor 2 Expansion valve 2 Gebwell GEMINI... -
Page 13: Sensors
Pumps Sensors Inside the heat pump: Inside the heat pump: Charging pump Hot gas sensor External pumps of the system: Collector’s inlet sensor Source pump (collector) Collector outlet sensor Heating circuit pumps: Heat pump output water sensor Heating circuit pump 1 Heat pump return water sensor Heating circuit pump 2 External sensors:... -
Page 14: Dimensions And Pipe Connections
6 DIMENSIONS AND PIPE Pipe connections CONNECTIONS Heat pump connections Charge output Ø 35mm Charge return Ø 35mm Brine in Ø 35mm Brine out Ø 35mm Gebwell GEMINI... -
Page 15: Pipe Installation
When 40x4.2 PN6.3 PEM hoses are used 7 PIPE INSTALLATION Device Recommended Recommended length of collec- active drilling Collector tion piping (m) depth (m) When viewing from the front, the heat pump’s collector pipes GEMINI 40kW 4x500 – 6x500 4x170 – 5x200 are at the right edge of the device. -
Page 16: Charging Circuit
The heat pump must be equipped with a non-return valve, as shown in the figure, in order to secure proper operation. The equipment cannot be operated without a non-return valve. The devices have internal heating line pumps, one for each com- pressor unit. Gebwell GEMINI... - Page 17 Install dedicated filters for both compressor units in the heating Charging output, to the domestic hot water accumula- circuit as shown in the figure. tor (master unit) Charging output, to the domestic hot water heating Charging return, from the domestic hot water accu- accumulator (master unit) mulator (master unit) Charging return, from the domestic hot water heating...
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Page 18: Connections Of An Additional Heat Source
The capacity of the heat pump is to be deter- mined on the basis of the capacity of the extraction air radiator and the cooling output capacity of the heat pump. Gebwell GEMINI... - Page 19 RESERVOIR TANK FOR THE DOMESTIC HOT WATER SYSTEM If the consumption of domestic hot water is high, the heat pump can be supplemented with an electrically heated additional res- ervoir. The heat pump heats the cold water in the internal reser- voir, after which the water is led to the external buffer reservoir.
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Page 20: Electrical Connections
Motor protection setting: The common flow sensor of the heat pump is the control sensor of the cascade system. Place the sensor in accordance with the Gemini 40: 19A HW diagram included in the delivery. If any external heat Gemini 52: 24A... -
Page 21: Connection Of The Domestic Hot Water Charging Package (Hwexe)
Sensor B3 is placed in the sensor pocket of the domestic hot water accumulator in accordance with GEBWELL HEAT PUMP EXTERNAL the HW diagram. Connection, connector h, BX8/M Y/GR HEATING CIRCUIT FLOW SENSOR B1 DOMESTIC HOT WATER... -
Page 22: Change-Over Valve(S)
ALWAYS made to the master device. QX12 Pump heating circuit’s pump Q3 = black (control 230VAC) Connector U Control 230VAC, max 0,7A N = blue L10 = brown (continuous 230VAC) Y/GR Y/GR Actuator connection: HEATING CIRCUIT PUMP MAX 0,7A Gebwell GEMINI... -
Page 23: Domestic Hot Water's Circulation Pump
The domestic hot water’s circulation pump can be connected to the heat pump’s controller. QX13 Domestic hot water’s circulation pump Connector V Control 230VAC, max 0,7A GEBWELL HEAT PUMP EXTERNAL Y/GR Y/GR 8.15 Alarm forwarding The possible heat pump alarms can be forwarded e.g. to building... -
Page 24: Tariff Control
8.20 Connection of a cascade connection Prevention of activation must be done to all controllers. Several heat pumps (Gebwell T, GEMINI and Taurus-series) can be connected to one cascade system. The system’s main device is defined as the master device (controller 1). There can be 15 COMPRESSOR’S EXTERNAL... -
Page 25: Filling And Venting
Venting of the collector’s horizontal 9 FILLING AND VENTING piping Heating system The heating system is filled with water up to the required pres- sure, and vented. Vent the system carefully before activating the com- pressor. Air in the heating system may trigger alarms in the system. -
Page 26: Cleaning The Collector Filter
(F1) is in the OFF position electricity is lead to source pump the source pump’s line protection switch F4 is in OFF position. 10.2 Activation Set the heat pump’s main switch to (Q1) position I. Gebwell GEMINI... -
Page 27: Venting
Set the controllers’ line protection F10 and F11 to po- Heat pump’s output water temp. (2/27) sition I. Condenser’s temp. difference (16/27) Source’s input temperature (17/27) The controller updates the information Source’s output temperature (18/27) Evaporator’s temp. difference (16/27) Turn the domestic hot water off from the user termi- nal. -
Page 28: Venting The Heat Supply Circuit
10.5 Use without a collector and use during construction site The heat pump can be used for heating already before connecting the collector. In this case, all the heat is produced with direct electric energy. All the control functions of heating and domestic Gebwell GEMINI... -
Page 29: Heat Pump Operation
11 HEAT PUMP OPERATION 11.2 User terminal AVS74 user terminal 11.1 User interface All the usual settings are made from the heat pump’s user termi- nal, and the wishes regarding comfort that the heat pump should implement, are determined. The heat pump’s optimal utilisation requires that certain basic settings are in force according to in- structions. -
Page 30: User Levels
Readjusting the default settings If the desired room temperature is not obtained, it is necessary to re-adjust. Cold weather: - If the room temperature is too low, increase the heating curve slope value. Gebwell GEMINI... -
Page 31: Selecting Heating Mode
- If the room temperature is too high, decrease the heat- Heating areas off ing curve slope value. Temperature according to frost protection tempera- ture Warm weather: Protection operations active - If the room temperature is too low, turn the roller to Summer/winter mode switch automation is active. -
Page 32: Site-Specific Definition
When they have been switched on the output water sensor’s (B1/B12/B14) connection to the con- troller activates the heating circuit. Heating circuit 1 has been pre-activated at the factory. Gebwell GEMINI... - Page 33 ACTIVATION OF HEATING CIRCUITS The heating circuit must be activated in the configuration menu. Set the chosen circuit to ON mode and install the output water sensor, which will activate your selection. SUMMER / WINTER HEATING LIMIT Menu: Expert → Parameter list The summer/winter heating limit activates or deactivates the Configuration →...
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Page 34: Domestic Hot Water
Reduced set point 45°C Menu: Expert → Parameter list DOMESTIC HOT WATER RELEASE Domestic hot water reservoir → 3/11 → 5024 The release amount determines when the domestic hot water charging takes place. Factory setting: 5°C Gebwell GEMINI... -
Page 35: Domestic Hot Water Circulation Pump
If the domestic hot water temperature is lower than the current pressing the cooling operation button. The cooling operation is set point by the switching differential set here, the domestic hot not active, when the heating operation’s bar is not visible. water charging will be activated. - Page 36 This setting defines the lowest permissible output water temper- compensation into account. ature at a mixed outdoor temperature of 25°C. Factory setting: 18°C Factory setting: 18°C Menu: Expert → Parameter list Cooling circuit 1 → 5/11 → 923 Gebwell GEMINI...
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Page 37: Heat Pump Settings
Cooling circuit 2 → 5/11 → 1223 Heat pump → 3/23 → 2793 maximum rotation figure Output water min set point/ET 35 °C This setting defines the lowest permissible output water temper- Pump’s minimum rotation figure, 2792: ature at a mixed outdoor temperature of 35°C. Permitted adjustment range: 40-70% If an acceptable outdoor temperature value is not available, the controller will use the setting of parameter “Output water min... -
Page 38: Programming The Reservoir's Resistors And Output Water's Electrical Heaters
If the electrical Menu: Expert → Parameter list heating’s setting is “Replacement”, the prevention time is not taken into account. Configuration → 11/43 → 5890 Menu: Expert → Parameter list Output water’s electrical heater K26 (relay input QX2) Gebwell GEMINI... -
Page 39: Control Of Additional Heat Source
Heat pump → 13/23 → 2881 be changed in the user terminal’s menu. The change is made in Expert level. Adjustment range: 0 - 255min Menu: Expert → Parameter list Factory setting: 30min DHW reservoir → 5/11 → 5060 Electric output water release integral Factory setting: Replacement When a two- or three-phase flow-through resistor is used, the Replacement: The electric heater control ensures the charging... -
Page 40: Control Of Fixed Fuel Burner
Factory setting: 50°Cmin Factory setting: 35°C 12.13 Call for heating (VAK control) The heat pump can be controlled with a higher level automation system, with the Call for heating control message. The control Gebwell GEMINI... -
Page 41: Modbus Communication
message (0-10V) is provided to the heat pump’s Hx switch, 13 SYSTEM INFO which must be programmed as active in the Configuration menu. When the heat pump is controlled with a 0-10V Call for heating The heat pump operating status can be seen from the operating control, all the secondary network’s settings and controls must terminal. -
Page 42: Heating Circuits' Status Information
Some of the measurements will require additional equipment. 8428 Source inlet temp min °C 8429 source outlet temp °C 8430 Source outlet temp min °C 8440 Port 1 min idle time remaining 8442 Remain stage 1 on time min 8450 Hours run compressor 1 Gebwell GEMINI... - Page 43 Row num- Row num- Control row Unit/status Control row Unit/status 8743 Flow temp 1 --- ** Compressor 1 start-up coun- 8451 8743 Flow temp setpoint 1 °C 3110 Heat delivered 8770 Room temp 2 °C 3113 Energy brought in 8770 Room setpoint 2 °C 3116...
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Page 44: Failures
Valves closed between the accumulator and the heat- ing circuit Open the valves External switch for the room temperature drop acti- vated Check any external switches Room temperature too high: Heating circuit setting values are too high Gebwell GEMINI... - Page 45 Soft starter failure notification Failure in soft starter shows as Soft starter E25 failure notifica- tion on controller's display. The amount of flashes of the red LED light on soft starter indicates the failure. Number of flashes, red Failure Operation Incorrect Changing the phase se- phase se-...
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Page 46: Troubleshooting Table
If neces- nected. sary, contact Gebwell service. 25: Fixed fuel burner sen- Failure in the burner’s Failure in the electrical Contact a qualified Check that the sensor is intact and sensor. - Page 47 No: Failure message Sensor Description Cause Measure Measure 98: Extra module 1 The controller cannot de- Failure in the electrical Contact a qualified Check the fastening of the flat cable tect the extra module 1 system technician. between controllers. Check that the from the channel.
- Page 48 Change the phase se- phases are reversed. In- quence on the plug. stantaneous power failure. Check that the heat Power supply is missing a pump’s fuses are in- phase. The fuse is blown. tact. Contact a quali- fied technician. Gebwell GEMINI...
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Page 49: Maintaining And Servicing The Heatpump
15 MAINTAINING AND SER- 15.3 Nominal curves of sensors VICING THE HEATPUMP NTC10k (all sensors of the device, excluding the outdoor sensor) In order to ensure your heat pump’s long service life and unin- terrupted operation, the following inspections must be conducted a few times a year, and more frequently during the first year. - Page 50 Select to row Relay output QX6, accept with button. CHANGE-OVER VALVE TEST The alarm relay is activated. The K10 further alarm relay receives control. Change-over valve test is carried out on user terminal 1 of the End the test by setting to control row No test. Gebwell GEMINI...
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Page 51: Technical Specifications
16 TECHNICAL SPECIFICATIONS Gebwell GEMINI 40 52 64 Power information 0/35 Output power kW 45.0 61.0 69.2 Cooling power kW 35.0 48.0 54.8 Input power kW 10.0 13.0 14.4 COP 4.5 4.7 4.8 0/55 Output power kW 40.6 54.6 61.8 Cooling power kW 25.6 35.2 ... - Page 52 Max heating water’s output temperature °C 68 Sound power level dB(A) 42 42 43.5 Dimensions and weights Width mm 600 Height mm 1895 Depth ** mm 875 Weight kg 400 400 400 Pipe connections Brine G 1 1/4" Charging mm 35 Controller Gebwell Albatros Compressor Scroll ** Depth dimension does not take into account connection from rear. Gebwell GEMINI...
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Page 53: Connection Points, Controller 1
17 CONNECTION POINTS, CONTROLLER 1: 17.1 Sensors GEBWELL HEAT PUMP ADDITIONAL WHITE RESERVOIR 2 BROWN (HEATING LOWER) COMMON OUTPUT WHITE WATER BROWN WHITE ADDITIONAL RESERVOIR 1 BROWN (HEATING UPPER) HEATING CIRCUIT 1 WHITE FLOW SENSOR BROWN WHITE OUTDOOR TEMPER- BROWN... -
Page 54: Controls
17.2 Controls EXTERNAL GEBWELL HEAT PUMP ALERT, 230 VAC max. 0,7A Y/GR Y/GR ELECTRIC RESISTOR, HEATING STAGE 2 CONTROL 230 VAC ELECTRIC RESISTOR, HEATING STAGE 1 CONTROL 230 VAC ELECTRIC RESISTOR, DOMESTIC HOT WATER CONTROL 230 VAC Q4 DOMESTIC HOT WATER CIRCULATION PUMP... -
Page 55: Setpoint Examples For Heat Pump Adjustments In Different Heating Networks
18 SETPOINT EXAMPLES FOR HEAT PUMP ADJUSTMENTS IN DIFFERENT HEATING NETWORKS Set points of the heating circuits: Row number Control row Factory setting Under floor Radiator heat- Air heating heating HC1* HC2* HC3* 1000 1300 Opearating mode Automatic Comfort set point 1010 1310 1012... -
Page 56: Maintenance Record
Date: Measure: *Fault code: Performed by: Nature of mainte- nance: R= repair M = maintenance S = change of set- tings *Fault code: If the device fails, enter the fault code issued by the controller in this column. Gebwell GEMINI... -
Page 57: Energy Labels
20 ENERGY LABELS v1-6 29082018... - Page 73 Declaration of Conformity We, Gebwell Ltd, hereby declare under our sole responsibility that the product Aries Gemini E-Flex Taurus to which this declaration relates is in conformity with the LOW VOLTAGE DIRECTIVE 2006/95/EC ELECTROMAGNETIC COMPATIBILITY DIRECTIVE 2004/108/EC and the following harmonised standards and technical specifications have been applied:...
- Page 74 Gebwell Ltd. Patruunapolku 5 FI-79100 Leppävirta FINLAND Business ID: 2008956-7 Tel. +358 (0) 20 123 0800 Telefax +358 (0) 17 554 1102 info@gebwell.fi www.gebwell.com...
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