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Field Setting
SiUS34-801A_b
256
VRVIII R-410A Heat Recovery 60Hz
12.1.5 Setting of Low Noise Operation and Demand Operation
Setting of Low Noise Operation
By connecting the external contact input to the low noise input of the outdoor unit external control
adaptor (optional), you can lower operating noise.
A. When the low noise operation is carried out by external instructions (with the use of
the external control adaptor for outdoor unit)
1. Connect the external adaptor for the outdoor unit, and then connect the external input wiring to
the low-noise operation input terminal on the terminal block (X1M). (Refer to the figure shown
below.)
2. While in
Setting mode 2
, set the setting condition for set item No. 12 (Setting of external low
noise/demand operation) to
YES
.
3. If necessary, while in
Setting mode 2
, select the setting condition (i.e.,
Level
1
,
Level
2
, or
Level
3
) for set item No. 25 (Setting of external low noise level).
4. If necessary, while in
Setting mode 2
, set the setting condition for the set item No. 29 (Setting
of capacity precedence) to
ON
.
(If the condition is set to
ON
, when the air-conditioning load reaches a high level, the low noise
operation command will be ignored to put the system into normal operation mode.)
B. When the low noise operation is carried out automatically at night (The external control
adaptor for outdoor unit is not required)
1. While in
Setting mode 2
, select the setting condition (i.e.,
Level
1
,
Level
2
, or
Level
3
) for set
item No. 22 (Setting of nighttime low noise level).
2. If necessary, while in
Setting mode 2
, select the setting condition (i.e., [
20:00
], [
22:00
], or
[
24:00
]) for set item No. 26 (Setting of start time of nighttime low noise operation).
(Use the start time as a guide since it is estimated according to outdoor temperatures.)
3. If necessary, while in
Setting mode 2
, select the setting condition (i.e., "06:00", "07:00", or
"08:00") for set item No. 27 (Setting of end time of nighttime low noise operation).
(Use the end time as a guide since it is estimated according to outdoor temperatures.)
4. If necessary, while in
Setting mode 2
, set the setting condition for set item No. 29 (Setting of
capacity precedence) to
ON
.
(If the condition is set to
ON
, when the air-conditioning load reaches a high level, the system will
be put into normal operation mode even during nighttime.)
Setting
Content
Level 1
Set the outdoor unit fan to Step 5 or lower.
Level 2
Set the outdoor unit fan to Step 4 or lower.
Level 3
Set the outdoor unit fan to Step 3 or lower.
To other external control adaptor
for outdoor unit
Host computer monitor panel or demand controller
Demand
2
P
Outside
wiring
indicated by
dotted line.
3
If carrying out demand or low-noise input, connect the terminals
of the external control adaptor for outdoor unit as shown below.
F1
F2
N
1
C
X1M
Low
noise
Summary of Contents for VRV III
Page 15: ...SiUS34 801A_b xiv ...
Page 23: ...Model Selection SiUS34 801A_b 8 General Information ...
Page 133: ...Field Settings SiUS34 801A_b 118 VRVIII R 410A Heat Pump 60Hz ...
Page 254: ...SiUS34 801A_b Test Operation VRVIII R 410A Heat Recovery 60Hz 239 R 410A Label R 410A Label ...
Page 329: ...Field Setting SiUS34 801A_b 314 Indoor Unit ...
Page 340: ...SiUS34 801A_b Troubleshooting by Remote Controller Troubleshooting 325 ...
Page 490: ...SiUS34 801A_b Piping Diagrams Appendix 475 Heat Pump 230V RXYQ72 96 120PTJU 3D058636A ...
Page 491: ...Piping Diagrams SiUS34 801A_b 476 Appendix Heat Pump 230V RXYQ144PTJU 3D058640 ...
Page 492: ...SiUS34 801A_b Piping Diagrams Appendix 477 Heat Recovery 460V REYQ72 96 120PYDN 3D058639A ...
Page 493: ...Piping Diagrams SiUS34 801A_b 478 Appendix Heat Recovery 460V REMQ72PYDN 3D058637A ...
Page 494: ...SiUS34 801A_b Piping Diagrams Appendix 479 Heat Recovery 460V REMQ96 120PYDN 3D058638A ...
Page 495: ...Piping Diagrams SiUS34 801A_b 480 Appendix Heat Recovery 230V REYQ72 96 120PTJU 3D058639A ...
Page 496: ...SiUS34 801A_b Piping Diagrams Appendix 481 Heat Recovery 230V REYQ144PTJU 3D058640 ...
Page 497: ...Piping Diagrams SiUS34 801A_b 482 Appendix Heat Recovery 230V REMQ72PTJU 3D058637A ...
Page 498: ...SiUS34 801A_b Piping Diagrams Appendix 483 Heat Recovery 230V REMQ96 120PTJU 3D058638A ...
Page 501: ...Piping Diagrams SiUS34 801A_b 486 Appendix 1 3 BS Unit 4D057985A ...
Page 537: ...Piping Installation Point SiUS34 801A_b 522 Appendix ...
Page 543: ...Pressure Sensor SiUS34 801A_b 528 Appendix ...
Page 563: ...SiUS34 801A_b iv Index ...