INSTALLATION AND OPERATING INSTRUCTIONS
Contents
1. INSTALLATION AND OPERATING INSTRUCTIONS GDH20 Domestic Cooling amp Heating GDH70O Domestic Cooling amp Heating A SAFETY INSTRUCTIONS Do not use this unit if it has been dropped or damaged in any way e This unit should not be installed in any area where flammable liquids or vapors may be present Do not store or use gasoline or other combustible materials or liquids near or adjacent to this heat pump e Check the rating plate on the unit before installation to make certain the voltage shown is the same as the electricity supply to the heat pump e The unit must be connected only to a properly grounded electrical supply e Do not fail to properly ground the unit e This unit should only be serviced by qualified service personal e Always shut off electric power before making unit connections or removing any panels and be extremely careful to avoid injury e Components may have sharp edges which can cut you e Tubing and compressor contain high pressure refrigerant and they should not be exposed to high temperature or be punctured e Water temperature over 52 C 125 f can cause severe burns or death from scalding Feel the water before bathing or showering Children disabled and elderly are at highest risk of being scalded e Tampering with the thermostat heater elements or electrical connections is dangerous and may result in serious injury Only properly trained qualified service personnel should servi2. Compressor type Refrigerant Control Voltage Supply Voltage Nominal power consumption at A2 W35 Starting current Nominal current Nominal current at A2 W35 Device connection to heating system Type of defrosting Dimensions Indoor Unit Size H X W X D gt Weight GDH20 Domestic CE IP24 Indoor 25 to 435 Up to 60 3 9 kW COP 4 1 3 4 kW COP 3 7 2 2 kW COP 3 1 1 7 kW COP 2 6 1 66 kW COP 3 0 44 1 5 10 300 Scroll 0 61 R134 a 230 230V 1 N 50 HZ Reverse cycle 700 x 350 x 500 65 GDH70 Domestic CE IP24 Indoor 25 to 435 Up to 60 9 20 kW COP 4 3 8 50 kW COP 3 9 7 10 kW COP 3 3 6 30 kW COP 2 8 4 5 kW COP 3 0 34 1 5 10 3 000 4 000 Scroll 1 9 230 230V 1 N 50 HZ 2 4 90 or 20 with soft starter 24 0 10 4 DN25 Reverse cycle 1 000 x 450 x 650 95 GDH4 COP at 35 C Water outlet 20 15 Heating capacity kW GDH70 Domestic 14 gt o 12 j LO LO 10 7 o G 81 x gt o G 4 Oo E I 2 0 T f i 20 15 10 5 15 20 25 30 35 Air inlet temperature C COP GDH70 Domestic 10 5 0 5 10 15 20 Air inlet temperature C 25 30 35 kW at 35 C Water outlet Power consumption GDH70 Domestic 20 15 10 5 0 5 10 15 20 25 30 35 Air inlet temperature C GDH4 EC Declaration of Conformity C GDH Energy Guangzhou C
3. 6 Circulation pump heatpump circuit Hydraulic scheme Direct heating cooling with Domestic hot water production Controller connection 41 Controller Display 45 Outside temperature sensor 6 Circulation pump heatpump 8 Circulation pump heating circuit 1 13 14 3 way valve for domestic water Outlet Inlet Outlet Iniet Cold water 13 14 i Hot water Buffertank Domestic water 46 Heating circuit 1 gt Controller connection 41 44 45 46 6 8 Controller Display Outside temperature sensor Buffertank sensor heating Buffertank sensor Domestic water Circulation pump heatpump Circulation pump heating circuit 1 13 14 3 way valve for domestic water Cold water Hot water heating cooling APPENDIX ELECTRICAL WIRING DIAGRAM GDH20 Domestic 8 GDH70 Domestic Wein a 220 240 V 220 240 V 220 240 Volt 220 240 Volt Controller Fan Compressor DIMENSIONS GDH20 Domestic DIMENSIONS GDH70 Domestic TECHNICAL DATA Type Certificate and protection Installation location Operation temperature limits Air Heat water flow Heating capacity COP Outlet water temp A10 35 gt Outlet water temp A7 35 gt Outlet water temp A2 35 gt Outlet water temp A 7 35 Cooling capacity COP gt Outlet water temp A30 18 Sound pressure level at distance Heat carrier flow nominal Internal pressure drop heat carrier Air flow
4. mode e 2 inputs for pressure e DHW preparation sensors e Circulation pump control eBus interface e Storage tank management e Cascade management Energy management Measurement of heat yield optional feature ABUS TT TUTTI yc art l WW GDH200 Display GDH70 Domestic GDH200 Heat pump controller DIMENSIONS GDH Domestic GDH20 Domestic ww 000 L IZ Y 2 GDH70 Domestic ee lt GDH4 PRE INSTALLATION The heat pump should never be stored or installed on its side Upright transportation is recommended lf it becomes necessary to transport the heat pump on its side the manufacturer recommends that the unit be in the upright position for a minimum of two hours prior to operation Failure to follow these instructions may result in damage to the heat pump After removing the unit from the crate carton immediately remove the panels and inspect for any damage that might have occurred during shipment Report concealed damage immediately to the transportation company and request inspection The electric power source must be the same voltage and phase as shown on the rating plate Line and low voltage wiring must be done in accordance with local codes or the national electric code The heat pump must be installed by authorised installation engineers and the installation must follow the applicable local rules and regulations as well as th
5. ce these components Do not attempt to modify or change this heat pump in any way FEATURES SUMMARY GDH family is environment friendly high efficiency air source heat pump provides both domestic hot water and house heating Intelligent self adjusting control on managing house heating and domestic hot water production The GDH family heat pump can be combined to radiator or underfloor heating systems Offering different options for house heating installations to satisfy all different favorites EASY OPERATION Most of settings are finished by the manufacturer System senses the leaving water temperature and regulate the leaving hot water temperature according to inner setting automatically The end user just need to press ON OFF button then the system shall be managed by the controller properly EXCELLENT PERFORMANCE High efficiency scroll compressor high quality plate heat exchanger control fan speed precise refrigerant flow control by expansion valve with unique inner programme All these assure the GDH famility the most excellent performance at variable climate EASY INSTALLATION All connections of refrigeration circle parts have been put in place by the manufacturer the connection requested on site is just to connect the heat pump to hydraulic circle EXCELLENT SAFETY CONTROL Over pressure low pressure protection over load protection Switch on or off system automatically according to the feedback of return
6. ese installation instructions described in this manual We reserve the right to change the specifications within this publication in whole or in part without prior notice This brochure is to be used as a general guide and does not form any part of a contract or is binding in any way We reserve the right when necessary or at our discretion to use alternative suppliers or components manufactured by other suppliers INSTALLATION e The heat pump should be mounted level on a vibration absorbing pad slightly larger than the base to provide isolation between the unit and floor e Connect the heat pump with your water pipes DN25 inlet and outlet water e Install a circulation water pump direct after the outlet water e Connect the circulation pump with the heat pump e Connect the controller panel with the two wire e Put the water tank sensor into your water tank e lf the heat pump installed into south side please use the second outdoor temperature sensor Change the existent outdoor temperature sensor The new one is to install and to put it into the north side The outdoor temperature sensor is not to install into the sun Compressor Time Delay Be aware there is a 3 minutes time delay ELECTRIC INSTALLATION GDH20 Domestic amp GDH70 Domestic Terminal contactor 220 240 Volt F 2 3 10 11 12 1 PEN L1 PENI 220 240 Volt 220 240 Volt Controller Compressor GDH200 CONTROLLER INSTALLATION Controller Display Ou
7. o Ltd No 340 Dongjiang Road Zhongye Building Free Trade Zone GETDD 510730 Guangzhou China The undersigned hereby confirm that the design and construction of the product s listed below in the version s placed on the market by us conform to the relevant requirements of the applicable EC directives This declaration becomes invalidated if any modifications are made to product s without our prior authorization Designation Air to water heat pumps for outdoor installation containing R404A Typ e Harmonized EB Standards GDH70 Air Split EN 255 1997 GDH120 Air Split EN 378 2000 DIN 8901 DIN EN 60335 1 VDE 0700 T1 2005 07 DIN EN 60335 2 VDE 0700 T40 2004 03 DIN EN 55014 1 VDE 0875 T14 1 2003 09 DIN EN 55014 2 VDE 0875 T14 2 2002 08 DIN EN 61000 3 2 VDE 0838 T2 2001 12 DIN EN 61000 3 3 VDE 0838 T3 2002 05 National Directives VBG20 DruckbehV DIN 8901 DIN 8975 SVTI GDH Energy Guangzhou Co Ltd EC Directives EC Low Voltage Directive EC EMC Directive Pressure Equipment Directive EN603351 2002 A1 2004 A1 2004 EN 60335 2 40 2003 EN 55014 1 2000 A1 2001 A2 2002 EN 55014 2 1997 A1 2001 EN 61000 3 2 2000 EN 61000 3 3 1995 Corr 1997 A1 2001 Guangzhou China 2009 07 01 Subject to modification Images are for demonstrations 2009 07 01 GDH Energy Guangzhou Co Ltd Guangzhou China
8. tside temp sensor Buffertank heating o JQ JQ lo ol JO lo Buffertank domestic water O O O gt gt Z gt gt gt G gt a db 54 Heat meter O O c o 7 o z IZ I O O NO LEES cin IND h2 IN JN JN II II I O NO IDO 1 2 Jos J ok ine Ga OKO O0 IN 1 O1 amp Co Na JO cO O O c1 Bb N 1 NANA Circulation pump heat pump circuit Circulation pump for heating circuit 2 Circulation pump for heating circuit 1 L 3 way valve for domestic water 3 way valve for heating circuit 2 EVU Blocking ERROR Alarm for Building systems Auxilliary heater Auxilliary heater for domestic water Hydraulic scheme Direct heating cooling As Controller connection 41 de 6 8 Hydraulic scheme with Buffertank heating and cooling Controller connection Controller Display Outside temperature sensor Circulation pump heatpump circuit Circulation pump heating circuit 1 Controller Display Outside temperature sensor Buffertank sensor heating Circulation pump heatpump circuit Circulation pump heating circuit 1 Outlet Inlet Heating circuit 1 Heating circuit 1 s heating cooling Hydraulic scheme Domestic water production only Controller connection 41 Controller Display 44 Outside temperature sensor 46 Buffertank sensor domestic water
9. water temperature Available with anti freezing function in winter The controller surveil the status of each component each occurred malfuntion shall be sent to the indoor display WIDE RANGE WORKING CONDITION The GDH heat pump can work at 25 C 35 C EASY MAINTENANCE The system has self diagnose programme Any malfunction occurred shall be indicated through special code on the screen of the indoor display so the cause of malfunction can be shoot out easily GDH4 CONTROLLER FEATURES only for GDH70 Domestic for GDH20 Domestic Controller GDH100 The GDH200 controller is a specialized heat pumps controller including the complete cooling circle This controller can easily be adjusted to the most various heat pump conditions Furthermore an additional electric heating can be controlled depending on time and temperature Of course it has a defrost function for air water machines and a cooling function for all types All actuators and sensors are operated from the GDH200 or scanned and processed The controller consists of a built in part and a remote operating unit either a built in device or a wall mounting Integrated functions Variations and equipment e Control of the heat pump e 16 outputs for the control e brine to water of valves or pumps e Automatic defrosting e 12 sensor inputs e 2 heating circuits e 1 input or output for set e outdoor temperature points compensated 6 optocouplers e Switching to cooling
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