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Danfoss District Energy
VI.GP.P2.02
DKDHR
Instructions for installation and use
VX Solo II substations
Electrical connection
The electrical connection of the unit must be performed by autho-
rised personnel. The unit is to be connected to a 230 V AC mains
supply.
The power supply/connection must be carried out in accordance
with the applicable regulations and instructions.
The unit must be connected to an external switch so that it can be
disconnected in connection with maintenance, cleaning and repairs
or in the event of an emergency.
For VX Solo II substations supplied with Danfoss ECL electronic
controller the control equipment includes actuator(s) and sensors
installed in the unit and the controller. The controller is electrically
wired to sensors, pump and actuator(s).
Connection of outdoor sensor and immersion sensor, if any, is carried
out in accordance with below instructions.
Installation of outdoor sensor (ESMT)
The outdoor temperature sensor is supplied loose with the unit.
It is to be mounted on site as shown in the drawings to the right.
Always mount the sensor on the coldest side of the building (normally
the north side).
It must not be exposed to morning sunlight, and must not be po-
sitioned above windows, doors, ventilation ducts, balconies under
overhanging roof sections, or close to any other heat source.
Installation height: approx. 2.5 m above ground level.
Temperature range: -50 to 50° C.
Electrical connections
The cables can be connected to the sensor in any order.
Connection cable: 2 x 0.4 - 1.5 mm².
Connect the cable ends to ECL controller in clamps 29 and 30.
Mounting of immersion sensor (ESMB-12)
The immersion sensor for accurate temperature measurement and
control in the cylinder is supplied separately and must be mounted
and connected to the controller on site.
Temperature range immersion sensor: 0 to 100 °C
Temperature range immersion pocket: 0 to 180 °C
2-wire cable (2 x 0.34 mm² spliced) is preassembled in the controller.
1) Mount sensor pocket (supplied loose) in top or bottom of cylinder.
2) Lay immersion sensor and cable from substation to cylinder and
mount immersion sensor in immersion pocket.
In case the length of the sensor cable is not long enough for your
property, it is recommendable to change the whole cable. The mini-
mum area for the cable is 0,4 mm² and max. length is 125 m.
Access to ECL base part
Access to the base part for connection of outdoor sensor or the like
is obtained by pulling the lock (pin) down with a screwdriver until a
yellow line is visible on the lock. Then, the front piece can easily be
removed. Lock by pressing the lock (pin) up.
ECL Comfort 210/310 base part
Lock / pin
Common ground
terminal
Controller ECL 210/310
Supply voltage:
230 V a.c. - 50 Hz
Voltage range:
207 to 244 V a.c. (IEC 60038)
Power consumption:
5 VA
Load on relay outputs:
4(2) A - 230 V a.c
Load on triac outputs:
0,2 A - 230 V a.c.
Actuator AMV13 / AMV 150
Supply voltage
230 V a.c. - 50 Hz
Power consumption
2 / 7 VA
For further information please refer to the enclosed instructions.
Pumps (Alpha2 L & Alpha2)
Supply voltage:
230 V a.c. - 50 Hz
Protection class:
IP42
Power consumption:
Max. 25 Watt
For further information please refer to the enclosed instructions for
the circulation pumps.
