Daikin VRV IV+, Руководство по обслуживанию

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3 | Components
Service manual
243
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
c Cut here
d Cut here
e Cut here
f Cut above non‑return valve block
g Cut below non‑return valve block
2 Remove the complete E-Bridge from the unit so that you have easier access to
non‑return valves.
3 Depending on the non‑return valve block you need to replace, use a pipe
cutter to cut the pipe above and below the appropriate non‑return valve
block.
4 To install the E‑bridge with new non‑return valve(s), see "3.6.2 Repair
procedures" [
4
242].
To install the E-bridge assembly
1 Replace the necessary non‑return valve(s).
a
b
g
e
c
d
f
a Expansion valve
b Cut here
c Cut here
d Cut here
e Cut here
f Cut above non‑return valve block
g Cut below non‑return valve block
INFORMATION
Pay attention to the direction of the non‑return valve(s).
2 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
3 Wrap a wet rag around the non‑return valve and solder the refrigerant pipes.