Daikin EKHVMYD50ABV1 [26/64] Close the unit

Daikin EKHVMYD50ABV1 [26/64] Close the unit
Installation manual
24
EKHVMRD50+80ABV1 + EKHVMYD50+80ABV1
Daikin Altherma indoor unit
4P404420-1 2015.04
Precautions when connecting eld piping and regarding
insulation
The complete water circuit, inclusive all piping, must be insulated to
prevent reduction of the heating capacity.
If the indoor ambient temperature is higher than 30°C and the
humidity is higher than RH 80% then the thickness of the insulation
materials should be at least 20 mm in order to avoid condensation on
the surface of the insulation.
Fix the indoor unit refrigerant connections
Finalise the refrigerant piping work (connect the prepared
refrigerant piping to the piping coming from the outdoor unit).
Refer to the above cautions for brazing and to the outdoor unit
installation manual.
Close the unit
1 Put the sound bottom plate at the bottom of the unit and x it
with the appropriate screws.
NOTE
When using a 3-way valve or a 2-way valve in the
water circuit, the maximum changeover time of the
valve shall be less than 60 seconds.
NOTE
Consider carefully the installation location of the
exible water inlet pipe.
According to the direction of the water ow, the
water lter must be positioned as shown in the
gure.
Provide sufcient space allowing easy access to
clean the water lter and regular operation check
of the safety valve.
Provide a exible hose for pressure relief valve
blow-off (eld supply).
Consider to support the water inlet pipe and water
outlet pipe so not to stress the eld piping.
It is very important to keep good visibility of the
manometer. The position of the manometer can be
changed as shown in the gure below. Make sure that the
capillary tube does not come in contact with sharp edges
and prevent bending of the capillary tube as much as
possible.
Change the position of the manometer when piping is
on the left side of the unit
Mounting of the manometer against a wall (the 2
screws are eld supply).
2
3
1
2
3
1
2x
2x
NOTE
For servicing purposes, it is needed to be able to
evacuate the refrigerant circuit. Therefore, stop valves
are foreseen as accessories.
These stop valves must be installed near to the unit,
and on an accessible place (when service is needed
the stop valves need to be closed and equipment for
recovery/vacuuming has to be connected).
Decide where to install the stop valves and position the
stop valves on the wall by using the support plate.
1 Support plate
2 Stop valve
3 To outdoor unit
NOTE
Above instruction is for an EKHVMYD unit.
For the heating only unit EKHVMRD only 2 pipes
(liquid and discharge pipe) need to be connected.
NOTE
Only for EKHVMYD:
If the 2 beams that protect the drain pan during
transport were not removed before attempting to
put the sound bottom plate in place, the sound
bottom plate cannot be mounted. Refer to
"Installation on nal installation position" on
page 23.
2
1
3 3 3
1 2
2x

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