Aqua tempo power series tropical air-cooled scroll chiller 50Hz MCAC-ATSM-2014-09
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Connection Method 2:
The unit's LONWORKS gateway controls the central A/C to facilitate the building management system (BMS).
LONWORKS provides four settings to control the air-cooled chillers: Operation Mode, Outlet Water Temperature,
Hysteresis, and Clear Alarm.
Air cooled scroll units: max. 16 units
LONWORKS
NET WORK
LSQ-LONWORKS
BMS SYSTEM
RS485(P Q E)
RS485(P Q E)
Caution
This system adopts the manner of shared network variable to manage A/C system, which cannot access the
appointed A/C within central A/C system, until the co-responding network variable is modified to the one that
is intended to access. This device consists of one transceivers (the following called Main controller for short).
Main controller is responsible for querying and setting of 16 sets Air-cooled Scroll units with addresses of
0~15 .
2.9.6 NetWork Variables of setting main controller
NO Name
Name
2:4800bps
Initial value=2
Address
Type
nciUARTBaud SNVT_count
SNVT_count
SNVT_count
nciType
NciCtrl_Addr
Network
variable name
Network
variable type
Data definition Descriptions
1
2
3
Gateway type, need to be set as the actual condition.
The initial value is 0
Used for setting the baud rate of Rs485 port, and the
gateway is used 4800 baud rate.
The value is fixed to be 2.
The gateway address of the Air-cooled Modular unit
system. “Address” must be set the corresponding
value, as displayed in Table A. The initial value is 240.
0：KJR-120A/MBE
1：KJR-08B/BE
Initial value=0
240,241...255
Initial value=240
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