Daikin 2MXM-A, Installation Manual

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5 Piping installation
Installation manual
10
2MXM-A, 3MXM-A, 4MXM-A, 5MXM-A
R32 Split series
3P600450-6M – 2021.12
(mm)
353
600
240
240
a
a 100 mm above expected level of snow
4.2.2 To install the outdoor unit
4× M8/M10
4.2.3 To provide drainage
NOTICE
In cold areas, do NOT use a drain socket, hose and caps
(large, small) with the outdoor unit. Take adequate
measures so that the evacuated condensate CANNOT
freeze.
NOTICE
If the drain holes of the outdoor unit are blocked up by a
mounting base or floor surface, place additional foot bases
≤30 mm under the outdoor unit's feet.
▪ Use a drain socket for drainage if necessary.
a
a Drain hole
To close the drain holes and attach the drain
socket
1 Install drain caps (accessory f) and (accessory g). Make sure
the edges of the drain caps close off the holes completely.
2 Install the drain socket.
a c b b b
a
a
a Drain hole. Install a drain cap (large).
b Drain hole. Install a drain cap (small).
c Drain hole for drain socket
5 Piping installation
5.1 Preparing refrigerant piping
5.1.1 Refrigerant piping requirements
CAUTION
Piping and joints of a split system shall be made with
permanent joints when inside an occupied space except
joints directly connecting the piping to the indoor units.
NOTICE
The piping and other pressure-containing parts shall be
suitable for refrigerant. Use phosphoric acid deoxidised
seamless copper for refrigerant.
▪ Foreign materials inside pipes (including oils for fabrication) must
be ≤30 mg/10 m.
Refrigerant piping diameter
2MXM68
Liquid piping 2× Ø6.4 mm (1/4")
Gas piping 1× Ø9.5 mm (3/8")
1× Ø12.7 mm (1/2")
3MXM40, 3MXM52, 3MXM68
Liquid piping 3× Ø6.4 mm (1/4")
Gas piping 1× Ø9.5 mm (3/8")
2× Ø12.7 mm (1/2")
4MXM68
Liquid piping 4× Ø6.4 mm (1/4")
Gas piping 2× Ø9.5 mm (3/8")
2× Ø12.7 mm (1/2")
4MXM80
Liquid piping 4× Ø6.4 mm (1/4")
Gas piping 1× Ø9.5 mm (3/8")
1× Ø12.7 mm (1/2")
2× Ø15.9 mm (5/8")
5MXM90
Liquid piping 5× Ø6.4 mm (1/4")