Daikin FDYB-KA Series, Engineering Data

Page: 65 / 66

Installation ED41-016B
64 FDYB-KA Series
Outdoor unit
Gauge manifold
Low
side
High
side
Stop valve for liquid
Stop valve for gas
Service port
Vacuum
pump
1
2
3
L N
1 2 3 L N
V1, VAL, TYPE Power supply
•
The outdoor unit has the Fuse (5A)
for the interconnection cable.
Select the interconnection cable size
with the Fuse (5A).
Indoor unit
Outdoor unit
C : 3PN00281-18T-13
〈
REFRIGERANT PIPING
〉
Model
Max. allowable length
Max allowable height
Additional refrigerant
required for refrigerant
pipe exceeding 10m
in length. (NOTE 1)
Gas pipe
Liquid pipe
RY35
20 m
20g/m
φ
12.7
×
t 0.8
RY60
60g/m
Heat pump
RY50
15 m
30g/m
φ
6.4
×
t 0.8
30 m
φ
15.9
×
t 1.0
NOTE: 1) If RY60 type is connected, extra refrigerant
is needed if 5m is exceeded.
2) For pipe connection refer to
"REFRIGERANT PIPING WORK".
〈
AIR PURGE
〉
•
Leak test
1. Evaluate the pipes and check vacuum. (No pressure increase for 1 minute)
2. Charge Nitrogen (N
2
)
3. Check for leaks by applying soap water to pipe connections.
4. Discharge Nitrogen.
5. Conduct air purge again and check vacuum.
6. Open valves and charge refrigerant into the connection pipe and into the indoor unit.
7. Leak test must follow the standard pr. EN378-7.
〈
ELECTRIC WIRING WORK
〉
•
All field supplied parts and materials and electric works must conform to local codes.
•
All wiring must be performed by an authorized electrician.
•
Use copper wires only.
•
For electric wiring work, refer also to the "WIRING DIAGRAM" attached to the outdoor unit.
•
A circuit breaker capable of shutting down power supply to the entire system must be installed.
Model
Series
RY35
RY50
RY60
Type
V1
V1
VAL
V1
VAL
Field fuse
15
20
20
20
25
Cable type (
∗
)
H05VV–U3G
H05VV–U3G
H05VV–U3G
Power supply
Interconnection cable
type (
∗
)
H05VV–U4G
H05VV–U4G
H05VV–U4G
Size
Wiring size must comply
with the applicable local
and national code.
∗
Only in protected pipes, for outdoor installation use type H07RN · F.