Connecting The Refrigerant Piping; Usage Of Reducers To Connect The Piping To The Outdoor Unit; To Connect The Refrigerant Piping To The Indoor Unit; Connecting The Water Piping - Daikin CHYHBH05AA Installation Manual

4 Installation
4.3

Connecting the refrigerant piping

See the outdoor unit installation manual for all guidelines,
specifications and installation instructions.
4.3.1 Usage of reducers to connect the piping
to the outdoor unit
For connecting the piping to the outdoor unit, you (possibly) need
reducers. Please consult following table to see where you need
which reducer.
See the outdoor unit installation manual for more information.
Port 3MXM52 4MXM68
3MXM68
A X X
(a)
B CHYHBH05 X
(a)
C CHYHBH05 CHYHBH05
D — CHYHBH05
E — —
X Connection of CHYHBH05 or CHYHBH08 is NOT allowed.
— Connection of CHYHBH05 or CHYHBH08 is NOT possible.
(a) Use the reducer accessory set from the accessory bag
delivered with the indoor unit.
4.3.2 To connect the refrigerant piping to the
indoor unit
1 Connect the liquid stop valve from the outdoor unit to the
refrigerant liquid connection of the indoor unit.
Installation manual
8
4MXM80 5MXM90
X X
X X
(a)
CHYHBH05 X
CHYHBH08
(a)
CHYHBH05 CHYHBH05
CHYHBH08 CHYHBH08
— CHYHBH05
CHYHBH08
a
a Refrigerant liquid connection
b Refrigerant gas connection
2 Connect the gas stop valve from the outdoor unit to the
refrigerant gas connection of the indoor unit.
CHYHBH05+08
Liquid piping
Gas piping
4.4

Connecting the water piping

4.4.1 Connecting the water piping of the indoor
unit
To connect the water piping for space heating
NOTICE
In case of old heating installations, it is recommended to
use a dirt separator. Dirt or sediment from the heating
installation can damage the unit and reduce its lifetime.
NOTICE
Do NOT use excessive force when connecting the piping.
Deformation of the piping can cause malfunctioning of the
unit.
NOTICE
▪ It is recommended to install shut-off valves to space
heating in and space heating out connections. Shut-off
valves are field supplied. They allow service to the unit
without draining the whole system.
▪ Foresee a drain/fill point to drain or fill the space
heating circuit
NOTICE
Do NOT install valves to shut down the entire emitter
system (radiators, floor heating loops, fan coil units, ...)
instantly if this can result in an immediate short circuit of
the water flow between the outlet and the inlet of the unit
(for example via a bypass valve). This may trigger an error.
1 Connect the water inlet connection (Ø22 mm).
2 Connect the water outlet connection (Ø22 mm).
Daikin hybrid for multi heat pump – heat pump module
b
Ø6.4 mm (1/4")
Ø15.9 mm (5/8")
CHYHBH05+08AA
4P471756-1C – 2017.10