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Table of Contents
Related Manuals for Danfoss DHP-AQ
Summary of Contents for Danfoss DHP-AQ
- Page 1 MAKING MODERN LIVING POSSIBLE Commissioning DHP-AQ www.heating.danfoss.com...
- Page 2 Danfoss A/S is not liable or bound by warranty if these instructions are not adhered to during installation or service. The English language is used for the original instructions. Other languages are a translation of the original instructions. (Directive 2006/42/EC)
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Page 3: Table Of Contents
Set hot water start temperature and activate hot water ........Activate the electric auxiliary heater in DHP-AQ Midi and DHP-AQ Maxi ...... -
Page 4: About Documents And Decals
The following symbols can occur on decals on the different parts of the heat pump. Which symbols are used depends on the heat pump model. 1.2.1 General Warning, danger! Read the documentation provided. Warning, hazardous electrical voltage! Read the documentation provided. VIGFH102 Danfoss Heating Solutions... - Page 5 Hot water top sensor Defrost sensor Flow guard 1.2.3 Pipe connections Tap water Heating system Brine system Defrosting tank Expansion tank with safety valve, brine Air bleeding Temperature and pressure relief valve Outdoor unit Water heater Danfoss Heating Solutions VIGFH102...
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Page 6: Checking Piping And Electrical Installation
If the amount of water in the heating system is not sufficient, Low Pressure alarms may occur. For DHP-AQ Maxi, also check: Water heater checklist Not OK Bleed valve installed For DHP-AQ Mini, also check: External Water heater checklist Not OK Exchange valve installed (factory installed in DHP-AQ Midi and DHP-AQ Maxi) VIGFH102 Danfoss Heating Solutions... -
Page 7: Checking The Electrical Installation
The sensor must be positioned at least 1 m from openings in the walls that emit hot air. If the sensor cable is connected through a pipe, the pipe must be sealed so that the sensor is not affected by outgoing air. Danfoss Heating Solutions VIGFH102... -
Page 8: Filling And Bleeding
Leave all radiator valves fully open. To bleed the out door unit, remove the lower front hatch and right hand side cover. Fig. 3: Bleed the outdoor unit Fig. 2: Remove front hatch and side cover VIGFH102 Danfoss Heating Solutions... -
Page 9: Configuration Of Control System
Use + or – buttons to select Heat Pump size in kW Press right arrow (>) to confirm the choice. An asterisk (*) will appear next to the chosen value Press left arrow (<) several times to navigate to the service menu Danfoss Heating Solutions VIGFH102... -
Page 10: Factory Setting
The OPTIMUM option is however not activated from factory. If fixed speed circulation pump is used, may be the case for DHP-AQ Mini, then skip this setting. The following settings are made in the Service Menu. If not already in the Service Menu, enter the Service Menu by pressing and holding left (<) arrow for at least 5 seconds. -
Page 11: Set Hot Water Start Temperature And Activate Hot Water
If the heat demand is greater than the heat pump’s compressor capacity, the immersion heater engages automatically in operating mode AUTO. DHP-AQ Midi and DHP-AQ Maxi has three outputs, IMM. HEAT 1, IMM. HEAT 2 and IMM. HEAT 3 and output can be control- led in five steps. - Page 12 Electric auxiliary heater for 400V, 3-N. Step 5 is highest setting 5 is highest setting Setting of electric auxiliary heater for 400V, 3-N. Max step 5 in the SERVICE menu: SERVICE AUX. HEATER. MAX STEP Select max step VIGFH102 Danfoss Heating Solutions...
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Page 13: Activate Electrical Auxiliary Heater In Dhp-Aq Mini
Commissioning Activate electrical auxiliary heater in DHP-AQ Mini If a single power stage heater is used (on/off heater, can be an oil burner or equivalent), this setting is the appropriate one. The potential free outputs must be used. If a multi power stage heater is installed, use the settings in the chapter above: "Activate the electric auxiliary heater in DHP-AQ Midi and DHP-AQ Maxi"... -
Page 14: Distribution Circuits
When CONSTANT TEMP is selected, distribution circuit con- trols a constant temperature regardless of outdoor tempera- ture. Press left arrow several times to exit the Service Menu DISTR. CIRCUIT 2 requires expansion card VIGFH102 Danfoss Heating Solutions... -
Page 15: Manual Test
0 = four way valve is set for heating 1 = four way valve is set for defrosting/cooling EXPANSION VALVE 0 – 100% for test of electronic expansion valve. SOLENOID 0 = closed solenoid 1 = open solenoid Danfoss Heating Solutions VIGFH102... - Page 16 Test the circulation pump Optimum (variable speed) circulation pump If a fixed speed circulation pump is used, may be the case for DHP-AQ Mini, do the test according to the next chapter: "Constant speed circulation pump" Optimum (variable speed) circulation pump is factory installed in DHP-AQ Midi and DHP-AQ Maxi. The OPTIMUM option is however not activated from factory.
- Page 17 6. Stop the compressor by setting the COMPRESSOR value to 0. 7. Stop the circulation pump by setting the CIRC. PUMP value to 0. Fig. 4: The pressure pipe (1) should get hot during operation Danfoss Heating Solutions VIGFH102...
- Page 18 Shows the actual calculated value for the integral. REFR 1 Shows the temperature at refrigerant sensor 1. REFR 2 Shows the temperature at refrigerant sensor 2. POOL Displays the temperature on the pool sensor on the condition that pool operation is permitted. VIGFH102 Danfoss Heating Solutions...
- Page 19 Set the value for MANUAL TEST to 0. 5.10 Insulate the piping When the manual testing is finished, do a final check for leaks and insulate the piping. Caution Make sure that pipes transporting cold water are insulated to prevent condensation damage. Danfoss Heating Solutions VIGFH102...
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Page 20: Starting Up
A too low setting may result in high pressure-, or low heat circulation flow alarms. Setting of START FLOW CIRC. value for optimum (variable speed) circulation pump The start flow is maintained for one minute. After one minute, the circulation pump and control system takes over the speed control. VIGFH102 Danfoss Heating Solutions... - Page 21 The following settings are made in the INFORMATION MENU. If not already in the INFORMATION MENU, enter the INFORMATION MENU from the default display by pressing (<) arrow. Use + or – to move up and down in the menu. INFORMATION MENU OP. DATA SUPPLY LINE / RETURN LINE Danfoss Heating Solutions VIGFH102...
- Page 22 Reinstall the lower front hatch and side cover After completed checks and tests the lower front hatch and side cover must be reinstalled on the out door unit. See figure 5. Fig. 5: Reinstall lower front hatch and side cover VIGFH102 Danfoss Heating Solutions...
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Page 23: Tuning The System
The control computer shows the value for CURVE by means of a graph in the display. The heat curve can be changed by adjusting the CURVE value. The value for the CURVE indicates which value on the supply temperature is required in relation to the outdoor tempera- ture. For a temporary increase or reduction, adjust the ROOM value instead. Danfoss Heating Solutions VIGFH102... - Page 24 3°C for every degree change of the ROOM value. The reason that the curve is adjusted 3°C is that an approximate 3°C increase in supply temperature is usually needed to increase the indoor temperature 1°C. VIGFH102 Danfoss Heating Solutions...
- Page 25 The factory set value for activating heat stop is an outdoor temperature of 17°C. If the heat stop function is active, the outdoor tempera- ture must drop 3°C below the heat stop setting, before the heat stop is deactivated and heat production starts again. Danfoss Heating Solutions VIGFH102...
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Page 26: Installation Protocol And Customer Info
The serial number must always be given for warranty matters. The serial number is on the type plate, which is attached to the heat pump and control unit. VIGFH102 Danfoss Heating Solutions... -
Page 27: Important Information/Safety Regulation
Alternatively the maximum hot water temperature must be reduced in the Service menu. Warning Danfoss SP (1-phase) heat pumps have a factory installed safety valve for temperature and pressure, (10 bar 90-95°C), in accordance with the requirements in Great Britain. This valve is located in the water tank and may not be used for any purpose other than connecting the outlet pipe. - Page 28 Refrigerant vapour is heavier than air and, in enclosed spaces below the level of a door for example, and in the event of leakage, concen- trations can arise with a resultant risk of suffocation due to a lack of oxygen. VIGFH102 Danfoss Heating Solutions...
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Page 29: Electrical Connection
Caution All warranties from Danfoss are void if, when filling with refrigerant other than Danfoss A/S specified refriger- ant, if there has not been written notification that the new refrigerant is an approved replacement refrigerant together with other remedies. -
Page 30: Water Quality
If the installation is only to be driven by the immersion heater during the installation, ensure that the heating system is filled and the brine pump and compressor cannot be started. This is carried out by setting the oper- ating mode to AUX. HEATER. VIGFH102 Danfoss Heating Solutions... - Page 31 Commissioning Danfoss Heating Solutions VIGFH102...
- Page 32 Internet: www.heating.danfoss.com Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies.