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Danfoss District Energy
VI.GP.V2.02
DKDHR
Instructions
Akva Lux II VX
8.5 Heat meter, Fitting piece
The substations are equipped with fitting pieces for heat meter on
the district heating return line.
Fitting of heat meter
- Close the ball valves on the district heating and the heating
sides.
- Loosen the union nuts at both ends of the fitting piece and
remove it.
- Fit the heat meter, - remember to insert gaskets.
- Mount sensor, - remember to insert gaskets.
- After mounting of heat meter remember to check and tighten
all pipe connections before commissioning the heat meter.
8.6 Test and connections
Before filling the system with water, retighten all the pipe connections
because 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 pressure test
for leaks. After heating of the system, check all the connections and
retighten if necessary.
Please note that the connections may feature EPDM rubber gaskets!
Therefore, it is important that you DO NOT OVERTIGHTEN the
union nuts. Over-tightening may result in leaks. Leaks caused by
over-tightening or failure to retighten connections are not covered
by the warranty.
8.7 Mounting of outdoor temperature sensor
The outdoor temperature sensor is delivered separately and must be
mounted on site according to the enclosed illustrations.
The outdoor sensor is always to be mounted on the coldest side of
the property (normally the north side of the property).
The sensor must not be exposed to the morning sun, and should not
be mounted above windows, doors, air vents or other heat sources,
and not under balconies and roof eaves.
Mounting height approx. 2.5 m above ground.
Temperature range: -50 to 50° C
Electrical connections
Two wire non polarized (can be crossed)
Sensor cable: 2 x 0.4 - 1.5 mm²
ECL 110:
Connect the cable ends to ECL controller in clamps 1 and 2.
ECL 310
Connect the cable ends to ECL controller in clamps 29 and 30.
8.8 Safety valves
A discharge outlet from the safety valves must be established in com-
pliance with local regulations.
