Daikin WMC Installation, Operation And Maintenance Manual page 40

MODES Setpoints
Figure 44: MODES Setpoint Screen
NOTE: Grayed out setpoints do not apply to this model chiller.
Table 10: MODES Setpoint Settings
Description
Compr # 2 Stage Sequence #
Compr # 2 Staging Mode
Compr #1 Stage Sequence #
Compr #1 Staging Mode
Maximum Compressors ON
BAS Network Protocol
Condenser Pump
Evaporator Pump
Control Source
Unit Enable
NOTES:
1. If both compressors have the same sequence number, they will automatically balance starts and run-hours.
2. Setpoints 11 through 14 display compressor staging strategy.
IOM 1210-1 • MAGNITUDE
No . Default Range
1,2, ... (# of
14 1
Compressors)
Normal, Efficiency,
13 Normal
Pump, Standby
1,2, ... (# of
12 1
Compressors)
Normal, Efficiency,
11 Normal
Pump, Standby
10 1 1-8
None, Local, BACnet,
9 MODBUS LonWorks, MODBUS,
Remote
Pump #1 Only, Pump
Pump #1
6 #2 Only, Auto Lead, #1
Only
Primary, #2 Primary
Pump #1 Only, Pump
Pump #1
5 #2 Only, Auto Lead, #1
Only
Primary, #2 Primary
3 Switches Switches, Local, BAS
1 OFF OFF, AUTO
MODEL WMC CHILLERS
®
Password
Sets sequence number for # 2 compressor. If set to 1, it is always
M
first to start. If set to 2, it is always second to start. (Note 1)
Normal uses standard sequencing, Efficiency starts one
M compressor on each unit, Pump starts all compressors on one
chiller first, Standby uses this compressor only if another fails
Sets sequence number for # 1 compressor. If set to 1, it is always
M
first to start. If set to 2, it is always second to start. (Note 1)
Normal uses standard sequencing, Efficiency starts one
M compressor on each unit, Pump starts all compressors on one
chiller first, Standby uses this compressor only if another fails
M Total number of compressors allowed to run at one time
M Sets BAS Standard Protocol to be used, or LOCAL if none
Pump #1 Only, Pump #2 Only, use only these pumps AUTO,
M balance hours between #1 and #2 #1 Primary, #2 Primary, if
Pump #1 Only, Pump #2 Only, use only these pumps AUTO,
M balance hours between #1 and #2 #1 Primary, #2 Primary, if
O Sets control source. See
OFF, everything is off. AUTO, Evap pump on, comp, cond pump
O
and tower on as required to meet LWT
38
o
peraTIon
Comments
primary fails, use other
primary fails, use other
"Unit Enabling/Disabling" on page
www.DaikinApplied.com
20.