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Controller
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2.2 Outdoor centralized controller
2.2.1 The controller enables centralized control over and data query of the outdoor units. Each
controller can form a monitoring and controlling network with up to 32 outdoor units through a
network interface module. Wired connection is used for communication and to enable
centralized control over outdoor units in the network.
2.2.2 The controller can communicate the computer via RS485/RS232 transformation interface.
Each computer can connect with 16 outdoor centralized controllers and 16 indoor centralized
controllers. The computer enables central control over, management, status query, etc of the
outdoor centralized controllers, indoor centralized controllers, indoor units and outdoor units
within the monitoring and controlling system.
2.2.3 For communications between controllers and outdoor units, as well as between computers
and controllers, the primary machine queries and the secondary machine replies. In the
monitoring and controlling network consisting of controller and outdoor units, the controller is
the primary machine, while the outdoor unit is the secondary machine.
3) Active watt-hour meter
3.1 Function of watt-hour meter
It is used to measure the electricity consumption of each outdoor unit.
3.2 Requirements on watt-hour meter
3.2.1 The system requires installation of watt-hour meter capable of reading via 485
communication interface and satisfying DL-T645-1997 standards (national standard watt-hour
meter regulations)
3.2.2 The watt-hour meter shall conform to the relevant national technical standards and be
confirmed by the power supply authorities.
3.2.3 The watt-hour meter shall conform to the technical requirements of GB/T1725-2002: Grade
I and Grade II Static AC Active Watt-Hour Meters.
3.2.4 Installation site: Specified work temperature
:
-25
o
C
~
+55
o
C
Scope of work temperature
:
-40
o
C
~
+70
o
C Relative humidity
:
<85%
3.2.5 Wiring of watt-hour meter shall be referred to the wiring nameplate supplied with the
watt-hour meter.
Summary of Contents for R-410A
Page 103: ...Wall mount 102 Part 4 2 Wall Mounted...
Page 113: ...Wall mount 112 4 Dimensions 4 1 YDS 22 36EC 4 2 YDS 45 56EC...
Page 115: ...Wall mount 114 5 Piping Diagrams 5 1 YDS 22 56EC 5 2 YDS 22 56HC...
Page 116: ...Wall mount 115 6 Wiring diagrams 6 1 YDS 22 36EC 6 2 YDS 45 56EC...
Page 117: ...Wall mount 116 6 3 YDS 22 56HC...
Page 118: ...Wall mount 117 7 Sound level 7 1 Test condition 7 2 Noise spectrums YDS 22 36EC HC...
Page 119: ...Wall mount 118 YDS 45 56EC HC...
Page 120: ...Wall mount 119 8 Velocity temperature distribution Discharge angle 70...