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Instructions
Akva Lux II
1.0 Contents
1.0 Contents ...................................................................................................................................................................................................................................... 1
2.0 Safety notes ................................................................................................................................................................................................................................ 2
3.0 Storage and Handling ............................................................................................................................................................................................................. 2
4.0 Disposal ....................................................................................................................................................................................................................................... 2
5.0 Easy start-up ............................................................................................................................................................................................................................... 3
5.1 Connections, Dimensioned sketches and Start-up .............................................................................................................................................. 3
6.0 Akva Lux II - Diagram example, measurements and main components .............................................................................................................. 4
7.0 Akva Les II - Diagram example, measurements and main components .............................................................................................................. 5
8.0 Akva Lux II GW - Diagram example, measurements and main components ..................................................................................................... 6
9.0 Akva Vita II - Diagram example, measurements and main components ............................................................................................................. 7
10.0 Mounting .................................................................................................................................................................................................................................... 8
10.1 Test and connections..................................................................................................................................................................................................... 8
10.2 Systems with domestic hot water (DHW) recirculation .................................................................................................................................... 8
10.3 Recirculation connection - Akva Lux II / Akva Les II .......................................................................................................................................... 9
10.4 Recirculation connection - Akva Lux II GW and Akva Vita II ............................................................................................................................ 11
12.0 Akva Lux II GW - Instructions ............................................................................................................................................................................................... 14
13.0 Akva Vita II - Instructions ....................................................................................................................................................................................................... 15
14.0 Maintenance .............................................................................................................................................................................................................................. 16
14.1 Maintenance of gasketed heat exchanger, Akva Lux II GW ............................................................................................................................. 17
15.0 Trouble shooting ...................................................................................................................................................................................................................... 19
16.0 EU Declaration of Conformity ............................................................................................................................................................................................. 21
17.0 Commissioning Certificate ................................................................................................................................................................................................... 22
Danfoss District Energy
Water Heaters
Akva Les II
.......................................................................................................................................................................... 13
VI.GP.N2.02
Akva Lux II GW
Akva Vita II
1 1
DKDHR
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Summary of Contents for Danfoss Akva Lux II
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Page 1: Table Of Contents
7.0 Akva Les II - Diagram example, measurements and main components ......................5 8.0 Akva Lux II GW - Diagram example, measurements and main components ..................... 6 9.0 Akva Vita II - Diagram example, measurements and main components ......................7 10.0 Mounting .............................................. -
Page 2: Safety Notes
Switch off the complete power supply and demount all connection pipes, dismantle the product and sort the components in various groups before disposal. Always observe the disposal rules of the local legislation. DKDHR VI.GP.N2.02 Danfoss District Energy... -
Page 3: Easy Start-Up
Follow the below start-up instructions for easy start-up. Water heater types: Akva Lux / Les II - fully insulated water heater with PTC2+P Akva Lux II GW - water heater with gasketed heat exchanger and PTC2+P Akva Vita II with PM2+P... -
Page 4: Akva Lux Ii - Diagram Example, Measurements And Main Components
Instructions Water Heaters 6.0 Akva Lux II - Diagram example, measurements and main components Plate heat exchanger XB06H -1 26 pl Domestic hot water controller PTC2+P Danfoss FJVR Supply Return General tolerance accuracy Weight Replace Design Approval Main components Confidential: Property o... -
Page 5: Akva Les Ii - Diagram Example, Measurements And Main Components
Fittings for DHW connection are supplied loose. See instructions on page 13. Accessories Danfoss AVE expansion unit for pressure relief. For systems, on which you want to avoid to have to establish a discharge pipe, which extends from the water heater safety... -
Page 6: Akva Lux Ii Gw - Diagram Example, Measurements And Main Components
Instructions Water Heaters 8.0 Akva Lux II GW - Diagram example, measurements and main components Plate heat exchanger U141RH Domestic hot water controller PTC2+P Danfoss FJVR Wall Supply Return Top view Main components Plate heat exchanger, gasketed, DHW DHW controller PTC2+P... -
Page 7: Akva Vita Ii - Diagram Example, Measurements And Main Components
Fittings for DHW connection are supplied loose. See instructions on page 15. Accessories Danfoss AVE expansion unit for pressure relief. For systems, on which you want to avoid to have to establish a discharge pipe, which extends from the water heater safety... -
Page 8: Mounting
Note, The Akva Lux II and Akva Les II water heaters are not me- chanically fixed in the insulation back and must be handled by lifting in both pipes and insulation simultaneously. -
Page 9: Recirculation Connection - Akva Lux Ii / Akva Les Ii
Instructions Water Heaters 10.3 Recirculation connection - Akva Lux II / Akva Les II Remember always to mount circulation pump and non-return valve on the circulation pipe and to mount safety valve on the DCW inlet. The pump must be installed so that the pump is pumping water towards the water heater. - Page 10 Fix circulation hose end B2 and nipple E in bracket, as shown Fig. 17 + 18 Cut out a section of the front insulation as shown, in order to be able to fix the front insulation cover after mounting of circulation pipe. Fig. 15 Fig.16 10 DKDHR VI.GP.N2.02 Danfoss District Energy...
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Page 11: Recirculation Connection - Akva Lux Ii Gw And Akva Vita Ii
90-degree bend on one end, using a pair of pliers. This applies only to type C Akva Vita II. - For type B, Akva Lux II GW, it is not necessary to make a 90-degree bend on the bracket before mounting. - Page 12 Fig. 12 Fit the other end of the capillary tube G on T-piece by means of Fig. 9 Fig. 10 union nut and cutting ring H. - Tighten with single end wrench. Fig. 11 Fig.12 12 DKDHR VI.GP.N2.02 Danfoss District Energy...
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Page 13: Akva Lux Ii / Akva Les Ii - Instructions
11.4 Bypass or circulation thermostat Bypass thermostat (default). As a standard the Akva Lux II and Akva Les II are equipped with a by- pass thermostat, Danfoss FJVR (2), which ensures that hot water is produced immedia-tely, when tapping starts. It is recommended to set the thermostat in pos. -
Page 14: Akva Lux Ii Gw - Instructions
12.4 By-pass or circulation thermostat Bypass thermostat (default). As a standard the Akva Lux II GW is equipped with a bypass thermostat, Danfoss FJVR (2), which ensures that hot water is produced immedi- ately, when tapping starts. It is recommended to set the thermostat in pos.3. -
Page 15: Akva Vita Ii - Instructions
13.3 DHW temperature control Danfoss PM2+P controller (1) for DHW. The DHW temperature is adjusted by turning the lever towards the red (warmer) or blue (colder) mark. Start by turning the handle clockwise - until the temperature indica- tor is exactly opposite the blue dot. -
Page 16: Maintenance
1.5 times normal flow rate, preferably in back-flush mode. This will remove any deposits formed on the inside of the plate heat exchanger. In case of more serious deposits, a cleaning liquid, approved by Danfoss (f.ex. Radiner FI) can be pumped through the heat exchanger. Both are environmentally friendly cleaning fluids and can be disposed of through the usual domestic sewerage system. -
Page 17: Maintenance Of Gasketed Heat Exchanger, Akva Lux Ii Gw
Instructions Water Heaters 14.1 Maintenance of gasketed heat exchanger, Akva Lux II GW Never open the plate heat exchanger until the unit has cooled below 40° C (105° F) Never open a plate heat exchanger, which is under pressure from any source. - Page 18 If the heat exchanger is separated we recommend that you obtain a separate instruction manual for the gasketed heat exchangers from our sales department. 18 DKDHR VI.GP.N2.02 Danfoss District Energy...
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Page 19: Trouble Shooting
Defective or wrongly set differential pressure controller - clean valve seat and pressure controller (not part of the dly). capillary tubes if required. Declining temperature during tapping Air in capillary tubes Air and rinse capillary tubes. 19 19 Danfoss District Energy VI.GP.N2.02 DKDHR... - Page 20 Discoloured water (for a longer period) Short-cuiting of heat exchanger Replace heat exchanger Clean heat exchanger with acid solution Not enough pressure on the hot water Calified heat exchanger or replace heat exchanger 20 DKDHR VI.GP.N2.02 Danfoss District Energy...
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Page 21: Eu Declaration Of Conformity
Declares under our sole responsibility that below products including all available power and control options: Type designation Vandvarmere: Akva Lux II, Akva Lux II GW, Akva Les, Akva Vita II Covered by this declaration is in conformity with the following directive(s), standard(s) or other norma- tive document(s), provided that the products are used in accordance with our instructions. -
Page 22: Commissioning Certificate
Over-tightening may result in leaks. Leaks caused by ove-rtightening or failure to retighten connections are not covered by the warranty. To be filled-out by the installer This substation has been retightened, adjusted and commissioned on the: by installer: Date/Year Company name (stamp) 22 DKDHR VI.GP.N2.02 Danfoss District Energy... - Page 23 Instructions Water Heaters 23 23 Danfoss District Energy VI.GP.N2.02 DKDHR...
- Page 24 Danfoss Redan A/S · District Energy · Omega 7, Søften · DK-8382 Hinnerup Tel. +45 87 43 89 43 · Fax: +45 87 43 89 44 · redan@danfoss.com · www.redan.danfoss.dk VI.GP.N2.02 Produced by Danfoss Redan A/S © 02/2014...
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