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Instructions for installation and use 

 

VXe Solo HT

© Danfoss | Produced by Danfoss Redan A/S | 2023.01  | 23

AQ440953137531en-010102

Selected Setting view

You can switch from the performance view to the se-
lected settings view by pressing the push button. The 
LEDs indicate the actual setting. The settings view 
shows which mode controls the circulator. You cannot 
change settings at this stage. After 2 seconds, the dis-
play switches back to performance view. 

If LED 1 is green, it indicates operation or internal con-
trol.
 If LED 1 is red, it indicates alarm or external control.
LED 2 and 3 indicate the different control modes and 
LED 4 and 5 indicate the different curves.

Setting the control mode

Check the pump setting by pressing the button once 
(one constant pessure). The LEDs will briefly (2 sec.) 
show the pump setting before changing back to show-
ing the power consumption. 

See fig. 5 - Pump setting view.

If the pump setting does not give the desired distribu-
tion of heat in
the rooms of the house, change the pump setting. 

See fig. 5 - Pump setting view.

Before starting the setting, make clear what the dis-
play should show for the new setting (

see fig. 5

).

To change the pump setting, choose the setting you 
want (see fig. 5), press the button down for more than 
2 seconds (less than 10) and the pump switches to 
setting selection, the LEDs start flashing and display 
the current setting. Then press the button until the 
LEDs shows the desired setting. The LEDs flash and 
when they stop the new setting is saved. The LEDs 
return to show power cunstumption. 

Please note

 that if the LEDs do not flash after 2 sec-

onds, possibly the pump setting is locked. To unlock, 
press the button down for more than 10 seconds. LEDs 
will flash and the pump is unlocked. To lock the pump, 
repeat the procedure.

For more information, se enclosed Grundfos in-
structions.

12. HEATING CIRCUIT, PUMP

Fig. 4. Selected setting view

Abb. 7. Toggling the settings of UPM3 FLEX AS

Note:

 

As appears in fig. 4, the example of ”performance” and ”selected setting” 

shows: 

• ”performance” - medium/high performance 50 % ≤ P1 ≤ 75 % 

• ”selected setting”- PWM A profile

LED

1

LED

2

LED

3

LED

4

LED

5

PWM profile A

Curve 1

Curve 2

Curve 3

Fig. 5. Pump setting view

Fig. 6. Setting the Control mode

Summary of Contents for VXe Solo HT

Page 1: ...oloHT Fullyinsulatedforhighor lowtemperaturedistrict heatingnetworks District heating substation for indirect heating and connection pipes for domestic hot water Indirect fully insulated district heat...

Page 2: ...e system with water 16 8 0 Electrical connections 17 9 0 Adjustmend and commissioning 18 10 0 Heating circuit Danfoss ECL 310 automatics 19 11 0 Control of heating circuit 20 12 0 Heating circuit pump...

Page 3: ...can be assessed Basedonthat recommendationscanbemadetoavoidscaling and or corrosion problems in the components Seeitem18 page35formoredetailedGuidelinesforWaterQualityinDan foss brazed heat exchanger...

Page 4: ...rpro tec tionagainstelectricshock Equipotentialbondingreducescorrosion intheheatexchanger instantaneouswaterheaters districtheatingsta tionsandplumbinginstallations Equipotentialbondingshouldbeinac co...

Page 5: ...stem with water according to the instructions on page 16 6 Open the ball valve for the HE supply and return flow and heat up the system 7 Checkthesubstationandthehouseholdpipingthoroughlyforleaks 8 Pr...

Page 6: ...of heat meter See page 15 Safety valves See page 15 Electrical connection See page 17 Outdoor sensor Connect to terminal block U Filling the system with water See page 16 Commissioning See page 18 26...

Page 7: ...pressure gauge 15 Manometer 16 Expansion vessel 17 Air valve 23 Sensor pocket for heat meter 24 Fitting piece for heat meter x 110 mm 25 Controller Danfoss ECL310 A230 A237 29 Danfoss actuator AMV 30...

Page 8: ...7B Ball valve IT ET 120 mm for thermometer 8 Circulation pump HE 11 Safety valve HE 3 bar 13 Thermometer 14 Pocket for pressure gauge 15 Manometer 16 Expansion vessel 12 l 17 Air valve 23 Sensor pock...

Page 9: ...ting piece for heat meter 3 4 x 110 mm 25 Controller Danfoss ECL310 A337 29 Danfoss actuator AMV 30 Danfoss flow controller with integrated control valve AVQM Option 54 Safety thermostat Jumo AT Acces...

Page 10: ...ometer 16 Connection for expansion vessel 17 Air valve 23 Sensor pocket for heat meter 24 Fitting piece for heat meter x 110 mm 25 Controller Danfoss ECL310 P330 26 Outdoor sensor ESMT 27 Sensor ESMC...

Page 11: ...essure gauge 15 Manometer 16 Expansion vessel 12 L 17 Air valve 23 Sensor pocket for heat meter 24 Fitting piece for heat meter x 110 mm 25 Controller Danfoss ECL310 26 Outdoor sensor ESMT 27 Sensor E...

Page 12: ...2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 5 DIAGRAM DIMENSIONAL SKETCH EXAMPLE VXE SOLO HWP HT ECL 310 A337 Connections 1 District heating DH supply 2 District heating DH return 3 Heating HE re...

Page 13: ...6 7 7 8 8 9 9 10 10 11 11 12 12 5 DIAGRAM DIMENSIONAL SKETCH EXAMPLE VXE SOLO HWS HT 310 A337 Connections 1 District heating DH supply 2 District heating DH return 3 Heating HE return 4 Heating HE su...

Page 14: ...QM 57 Safety thermostat Jumo 550 65 100 80 80 660 55 315 820 POS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48...

Page 15: ...use vibrations and shocks during transport and handling may have caused leaks Once the system has been filled with water tighten all the pipe connections once more before performing pres sure test for...

Page 16: ...pressure test for leaks Before filling the system with water and starting up check if pipes are connected according to the circuit diagram expansion vessel is connected heat meter is mounted shut off...

Page 17: ...outdoor sensor is always to be mounted on the coldest side of the property where it is less likely o exposed to direct sunshine normally the north side of the property The sensor must not be exposed...

Page 18: ...ler reduces the high fluctuating pressure in the district heating network to a constant operating pressure VXe Solo H HT Fig 1 For VXe Solo H HT the differential pressure controller is installed in th...

Page 19: ...escribed in the instructions on page 15 proceed as follows 1 Connect the controller and switch it on 2 Choose MENU in any circuit Confirm and turn the dial and choose Common controller settings in the...

Page 20: ...mation see manuals for Electronic Actuator AMV 150 Electronic Actuator AMV 13 Danfoss Valve VM 2 11 CONTROL OF HEATING CIRCUIT AMV 150 Press and hold the button on the bottom side of the actuator duri...

Page 21: ...heating circuit s can be supplied with a safety thermostat Jumo AT for protection against overheating From factory the Jumo AT safety thermostat is pre wired to the Danfoss ECL controller with a 2 m c...

Page 22: ...sing the button the display changes status or you can change settings The LEDs show the power consumption for the pump When the pump is running LED 1 is green The four yellow LEDs indicate the current...

Page 23: ...mp setting See fig 5 Pump setting view Before starting the setting make clear what the dis play should show for the new setting see fig 5 To change the pump setting choose the setting you want see fig...

Page 24: ...the cylinder sensor Danfoss ECL Comfort 310 The application Key contains information about application lan guage and factory settings adapted to the type of system for which it is ordered Note Various...

Page 25: ...ry connection for cylinder Below schedule states whether the VXe Solo is supplied with connection pipes for DHW cylinder on the primary side or the secondary side and whether the DHW temperature in th...

Page 26: ...nd is preset from factory Depending on the selected setting of the safety function the AMV 13 valve is fully opened or closed when the voltage supply is switched off For additional information see man...

Page 27: ...comes necessary to clean the exchanger with acid this canbedoneasshownonthedrawingtotheright Brazedplateheat exchangers can withstand rinsing with a dilute acid solution e g 5 formic acetic or phospho...

Page 28: ...onnec tions Check that the safety valve on the cold water supply is functioning correctly Check the functionality by turning the lever on the safety valves Check that all components are intact and fun...

Page 29: ...or valves Check replace Uneven heat distribution in building because of incorrectly set balancing valves or because there are no balan cing valves Adjust install balancing valves Diameter of pipe to f...

Page 30: ...g a reasonable level of comfort The system is single pipe loop Das System sollte mit elektronis chen Reglern und R cklauff hlern ausgestattet sein Pump pressure too high Pumpe niedriger einstellen Air...

Page 31: ...tic controls wrongly set or defective possibly power failure Check if the setting of the controller is correct see separate instructions Check the power sup ply Temporary setting of actuator to manual...

Page 32: ...correctly according to the specific tions of the manufacturer You may contact Danfoss Redan A S for further information Calified heating element Descale the heat exchanger or replace it Temperature t...

Page 33: ...Instructions for installation and use VXe Solo HT Danfoss Produced by Danfoss Redan A S 2023 01 33 AQ440953137531en 010102 16 EU DECLARATION OF CONFORMITY...

Page 34: ...ly with all technical regulations and the applicable legislation in every respect Installation and commissioning must only be performed by trained authorised personnel The substation is checked in the...

Page 35: ...Hardness ratio Ca2 Mg2 HCO3 0 0 3 0 3 0 5 o 0 5 Good corrosion resistance o Corrosion could happen when more parameters are evaluated with o o Risk of corrosion Use is not recommended Hardness ration...

Page 36: ...36 Danfoss Produced by Danfoss Redan A S 2023 01 145X2096 AQ440953137531en 010102...

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