Daikin CO2 Conveni-pack LRYEN10A7Y1 Installer And User Reference Manual page 66

16 | Piping installation
Installer and user reference guide
66
Requirement
Maximum piping length
Examples:
(a)
▪ A+B+C+D+(E or F) ≤Limit
(a)
▪ a+c+d+(e or f) ≤Limit
(a)
▪ A2+B2+(C2 or D2) ≤Limit
(a)
▪ a2+b2+(c2 or d2) ≤Limit
Piping length between LRYEN10* and
LRNUN5*
Maximum branch piping length
▪ Example refrigeration side:
(a)
- C+D+(E or F)
(a)
- c+d+(e or f)
- c+g
- j
▪ Example air conditioner side:
(a)
- B2+(C2 or D2)
(a)
- b2+(c2 or d2)
Maximum height Outdoor higher
difference than indoor
between outdoor
Example: H2,
unit and indoor
H4≤Limit
(b)
unit
Outdoor unit lower
than indoor unit
Example: H2,
H4≤Limit
Maximum height difference between
blower coil and showcase
▪ Example: H3≤Limit
Maximum height difference between
air conditioners
▪ Example: H1≤Limit
(a)
Whichever is longer
(b)
For low load restrictions, see
To install an oil trap
If the outdoor unit is installed higher than the indoor unit, install an oil trap in the
gas piping every 5 meter. Oil traps will make the oil return more easily.
LRYEN10*
Refrigeration side: 130 m
Air conditioning side: 130 m
Not specified, but piping must be
Refrigeration side: 50 m
Air conditioning side: 30 m
"To install an oil
"To install riser
"14.5.2 Constraints for refrigeration" [
Limit
LRYEN10* +
LRNUN5*
(b)
horizontal
35 m
4
trap" [ 66]
10 m
4
piping" [ 67]
5 m
0.5 m
4
49].
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit
4P605460-1 – 2020.08