EDUS341411-N
Installation Manual
Installation of Outdoor Units
25
3P362438-1B
15
3P362438-1B English
Use the following procedure to remove the pinched piping:
1
Remove the valve cover and make sure that the stop valves are
fully closed.
3
4
1
2
1 Service port and service port
cover
2 Stop valve
3 Field piping connection
4 Stop valve cover
2
Connect the vacuuming/recovery unit to service ports of all stop
valves.
12
8
1
2
4
3
5
13
6
11
9
7
B
A
10
1
Gauge manifold
2
Dry Nitrogen
3
Measuring instrument
4
Refrigerant R410A tank (siphon system)
5
Vacuum pump
6
Charge hose
7
Gas pipe stop valve
8
Liquid pipe stop valve
A
Valve A
B
Valve B
9
Outdoor unit
10 To indoor unit
11 Stop valve
12 Field piping
13
)CUƃQY
3
Recover gas and oil from the pinched piping by using a recovery
unit.
CAUTION
Do not vent gases into the atmosphere.
4
When all gas and oil is recovered from the pinched piping, discon-
nect the charge hose and close the service ports.
WARNING
9JGPDTC\KPICVVJGRTQZKOKV[QHVJGUVQRXCNXGDGUWTGVQRTQVGEV
the stop valve mounting plate with a protective plate to prevent from
EQPVCEVKPIYKVJVJGDWTPGTƃCOG
Stop valve for liquid
Stop valve for gas
Protective plate
Stop valve mounting plate
5
Cut off the lower part of the smaller pinched piping with an ap-
propriate tool such as pipe cutters. Let the remaining oil drip out in
case the recovery was not complete.
Wait until all oil is dripped out.
6
Cut the pinched piping off with a pipe cutter just above the brazing
point or marking if there is no brazing point.
WARNING
Never remove the pinched piping by brazing.
Any gas or oil remaining inside the stop valve may blow off the pinched
piping.
Failure to observe the instructions in procedure below properly may
result in property damage or personal injury, which may be serious
depending on the circumstances.
7
Wait until all oil is dripped out before continuing with the connection
QHVJGƂGNFRKRKPIKPECUGVJGTGEQXGT[YCUPQVEQORNGVG
8.2.3. Connecting refrigerant piping to the outdoor unit
r #NNRKRKPIUHQTICUCPFNKSWKFQXGTHTQOVJGƂGNFEQPPGEVKQPRKRKPIMKV
CTGƂGNFUWRRNKGF
Front connection
Remove the knockout hole of the piping intake and connect piping
to the piping intake.
1
2
3
4
3
Open knockout
hole here
1 Liquid side stop valve
2 Gas side stop valve
3 Filed connection piping kit (accessory)
4 Knockout hole
5KFGDQVVQOEQPPGEVKQP
Remove the knockout hole on the bottom frame and lead out the
piping from the bottom frame.
Summary of Contents for VRV IV RXYQ TYDN Series
Page 1: ...EDUS341411 N Installation...
Page 62: ...EDUS341411 N REFNET Joint and Header Installation of Outdoor Units 63 3P161697D...
Page 66: ...EDUS341411 N REFNET Joint and Header Installation of Outdoor Units 67 C 3P113151C 7 8 1 1 1 8...
Page 67: ...REFNET Joint and Header EDUS341411 N 68 Installation of Outdoor Units KHRP26M73HU 3P185500...
Page 68: ...EDUS341411 N REFNET Joint and Header Installation of Outdoor Units 69 3P185500...
Page 70: ...EDUS341411 N REFNET Joint and Header Installation of Outdoor Units 71 1P218719...
Page 71: ...REFNET Joint and Header EDUS341411 N 72 Installation of Outdoor Units 1P218719...
Page 72: ...EDUS341411 N REFNET Joint and Header Installation of Outdoor Units 73 1P218720...
Page 73: ...REFNET Joint and Header EDUS341411 N 74 Installation of Outdoor Units 1P218720...
Page 75: ...REFNET Joint and Header EDUS341411 N 76 Installation of Outdoor Units 1P280278A...
Page 76: ...EDUS341411 N REFNET Joint and Header Installation of Outdoor Units 77 1P280278A...
Page 77: ...REFNET Joint and Header EDUS341411 N 78 Installation of Outdoor Units 1P280279...
Page 79: ...Caution Label EDUS341411 N 80 Installation of Outdoor Units 2P361359C...
Page 80: ...EDUS341411 N Caution Label Installation of Outdoor Units 81 3P357947A...
Page 81: ...Caution Label EDUS341411 N 82 Installation of Outdoor Units 3P357947A...
Page 83: ...Caution Label EDUS341411 N 84 Installation of Outdoor Units 1P361833B...
Page 84: ...EDUS341411 N Caution Label Installation of Outdoor Units 85 1P361833B...
Page 85: ...Caution Label EDUS341411 N 86 Installation of Outdoor Units 1P361833B...
Page 86: ...EDUS341411 N Caution Label Installation of Outdoor Units 87 1P361833B...
Page 87: ...Caution Label EDUS341411 N 88 Installation of Outdoor Units 1P361833B...
Page 88: ...EDUS341411 N Caution Label Installation of Outdoor Units 89 1P361833B...
Page 89: ...Caution Label EDUS341411 N 90 Installation of Outdoor Units 3P357946A...
Page 90: ...EDUS341411 N Caution Label Installation of Outdoor Units 91 3P357946A...