Double Fan Outdoor Unit - Daikin VRV IV+ Service Manual

3 Components
5 To install the propeller fan blade assembly, see
procedures" on page 115.
To remove the DC fan motor assembly
1 Remove the propeller fan blade assembly from the DC fan
motor assembly, see "Repair procedures" on
2 Disconnect the DC fan motor connector from the fan inverter
PCB.
3 Unlock the ferrite bead.
4 Cut the tie strap.
5 Detach the DC fan motor cable.
d c
b c
a Fan motor cable
b Tie wrap
c Screw
d Fan motor
6 Remove the 4 screws that fix the DC fan motor assembly.
7 Remove the DC fan motor assembly from the unit.
8 To install the DC fan
procedures" on page 115.
To install the DC fan motor assembly
1 Install the DC fan motor assembly in the correct location.
2 Fix the DC fan motor assembly to the unit by tightening the
screws.
3 Route the DC fan motor cable.
4 Attach the DC fan motor cable.
5 Install a new tie strap to fix the DC fan motor cable.
6 Connect the DC fan motor connector to the connector on the
fan inverter PCB.
7 Lock the ferrite bead.
8 Install the propeller fan blade assembly, see
procedures" on page 115.
To install the propeller fan blade assembly
1 Install the propeller fan blade assembly on the DC fan motor
assembly.
CAUTION
Do NOT install a damaged propeller fan blade assembly.
2 Install the axle cover.
Service manual
116
https://daikin-p.ru/catalog/vrv-daikn/naruzhnye-vrv-bloki-daikin
"Repair
page 115.
c
c a
motor assembly, see "Repair
"Repair
3 Install and tighten the screw using an Allen key to fix the
propeller fan blade assembly.
b a d
c
a Screw
b Allen key
c Axle cover
d Propeller fan blade assembly
Is the problem solved?
Yes
No
3.12.2

Double fan outdoor unit

INFORMATION
See "6.4 Component overview" on page 164
location of DC fan motors M1F and M2F.
Checking procedures
INFORMATION
It is recommended to perform the checks in the listed
order.
To perform a mechanical check of the propeller fan blade
assemblies
Prerequisite: First perform a power transistor check of the fan
inverter PCB, see "3.6 Fan inverter PCB" on page
transistor is OK, proceed as follows:
Prerequisite: Stop the unit operation (via the user interface, central
controller, operation switch, ...).
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
work" on page 118.
1 If propeller fan blade touches the bellmounth, check if the fan
motor is correctly mounted on its base, see
procedures" on page 117.
2 Check the state of the propeller fan blade assemblies for
damage, deformations and cracks.
One or both propeller fan
blade assemblies are
damaged?
Yes
No
e
Action
No further actions required.
Return to "Checking
procedures" on page 115 of the
outdoor unit fan motor and
continue with the next procedure.
fort he correct
92. If power
"3.13 Plate
"Repair
Action
Replace the damaged propeller
fan blade assembly, see "Repair
procedures" on page 117.
Perform a mechanical check of
the DC fan motor assembly, see
"Checking procedures" on
page 116.
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ Heat Pump
ESIE18-14 – 2019.07