6 Preparation
Installer reference guide
17
C08AA + EHYKOMB33A
Daikin hybrid for multi heat pump – heat pump module
4P471761-1A – 2017.10
B (kg)
A (m
2
)
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5
H=500, 600, 700 mm
H=800 mm
H=1000 mm
H=900 mm
H=1100 mm
H=1200 mm
H=1300 mm
H=1400 mm
H=1500 mm
H=1600 mm
H=1700 mm
H=1800 mm
A
Minimum floor area for hybrid unit (m
2
)
B
Total refrigerant charge in the system (kg)
H
The height measured from the floor to the bottom of the
casing. The graph is based on the height measured from
the floor to the flare nut.
Do NOT install the unit in places such as:
▪ In places where a mineral oil mist, spray or vapour may be
present in the atmosphere. Plastic parts may deteriorate and fall
off or cause water leakage.
▪ Sound sensitive areas (e.g. near a bedroom), so that the
operation noise will cause no trouble.
▪ The foundation must be strong enough to bear the weight of the
unit. Take the weight of the unit with a domestic hot water tank full
of water into account.
Make sure, in the event of a water leak, water cannot cause any
damage to the installation space and surroundings.
▪ In places with high humidity (max. RH=85%), for example a
bathroom.
▪ In places where frost is possible. Ambient temperature around the
indoor unit should be >5°C.
▪ The indoor unit is designed for indoor installation only (in a
technical room or similar) and for ambient temperatures ranging
5~30°C in heating mode.
6.3
Preparing refrigerant piping
6.3.1
Refrigerant piping requirements
INFORMATION
Also read the precautions and requirements in the
"General safety precautions" chapter.
▪
Piping material:
Phosphoric acid deoxidised seamless copper.
▪
Piping diameter:
C08
Liquid piping
Ø6.4 mm (1/4")
Gas piping
Ø15.9 mm (5/8")
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")
4MXM68
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")
Gas piping
2× Ø9.5 mm (3/8")
1× Ø12.7 mm (1/2")
2× Ø15.9 mm (5/8")
▪
Piping temper grade and thickness:
Outer diameter
(Ø)
Temper grade
Thickness (t)
(a)
6.4 mm (1/4")
Annealed (O)
≥0.8 mm
t
Ø
9.5 mm (3/8")
≥1 mm
12.7 mm (1/2")
≥0.8 mm
15.9 mm (5/8")
≥1 mm
(a)
Depending on the applicable legislation and the unit's
maximum working pressure (see "PS High" on the unit
name plate), larger piping thickness might be required.
Usage of reducers might be required based on the outdoor unit. See
"7.6.8 Usage of reducers to connect the piping to the outdoor
unit" on page 28
for more information.
6.3.2
Refrigerant piping insulation
▪ Use polyethylene foam as insulation material:
▪ with a heat transfer rate between 0.041 and 0.052 W/mK (0.035
and 0.045 kcal/mh°C)
▪ with a heat resistance of at least 120°C
▪ Insulation thickness
Pipe outer diameter
(Ø
p
)
Insulation inner
diameter (Ø
i
)
Insulation thickness
(t)
6.4 mm (1/4")
8~10 mm
≥10 mm
9.5 mm (3/8")
10~14 mm
≥13 mm
12.7 mm (1/2")
14~16 mm
≥10 mm
15.9 mm (5/8")
16~20 mm
≥13 mm
Ø
i
Ø
i
t
Ø
p
Ø
p
If the temperature is higher than 30°C and the humidity is higher
than RH 80%, the thickness of the insulation materials should be at
least 20 mm to prevent condensation on the surface of the
insulation.
Use separate thermal insulation pipes for the gas and liquid
refrigerant piping.
Summary of Contents for CHYHBH05AA
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