Daikin RXTA30B2V1B, Service Manual

Page: 143 / 264

4 | Components
Service manual
143
RXTM-R+RXTP-R+ARXTP-R+RXTA-B+FTXTA30B2V1B(W)
(B)+35M5V1B
R32 Optimized Heating 4 Split
ESIE21-12A – 2022.02
a Screw (support plate)
b Support plate
c Screw (fan motor mounting bracket)
d Fan motor mounting bracket
e Heat exchanger
8 Stop the nitrogen supply when the piping has cooled down.
INFORMATION
It is ALSO possible to cut the component pipe(s) using a pipe cutter. Make sure to
remove the remaining component pipe end(s) from the refrigerant pipes by heating
the brazing point(s) of the component pipe(s) using an oxygen acetylene torch.
9 Install plugs or caps on the open pipe ends to avoid dirt or impurities from
entering the piping.
10 Carefully remove the screw from the fan motor mounting bracket while
supporting it. Remove the fan motor mounting bracket (with fan motor and
propeller fan blade installed) from the unit.
11 Remove the heat exchanger from the unit.
12 To install the outdoor unit heat exchanger, see "4.16.2 Repair
procedures" [
4
142].
To install the outdoor unit heat exchanger
1 Remove the plugs or caps from the refrigerant piping and make sure they are
clean.
2 Install the heat exchanger in the correct location on the bottom plate. Make
sure to correctly insert the pipe ends in the pipe expansions.
3 Install and tighten the 2 screws to fix the heat exchanger to the bottom plate.
c a b d e
a Screw (support plate)
b Support plate
c Screw (fan motor mounting bracket)
d Fan motor mounting bracket
e Heat exchanger
4 Carefully install the fan motor mounting bracket (with fan motor and propeller
fan blade installed) in the correct location. Install and tighten the screw to fix
the fan motor mounting bracket.
5 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
6 Wrap a wet rag around the components near the heat exchanger and solder
the heat exchanger pipes to the refrigerant pipes.