Daikin WMC Instruction Manual Page 38
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IOM 1210-1 • MAGNITUDE
®
MODEL WMC CHILLERS 38 www.DaikinApplied.com
operaTIon
MODES Setpoints
Figure 44: MODES Setpoint Screen
NOTE: Grayed out setpoints do not apply to this model chiller.
Table 10: MODES Setpoint Settings
Description No. Default Range Password Comments
Compr # 2 Stage Sequence # 14 1
1,2, … (# of
Compressors)
M
Sets sequence number for # 2 compressor. If set to 1, it is always
rst to start. If set to 2, it is always second to start. (Note 1)
Compr # 2 Staging Mode 13 Normal
Normal, Efciency,
Pump, Standby
M
Normal uses standard sequencing, Efciency starts one
compressor on each unit, Pump starts all compressors on one
chiller rst, Standby uses this compressor only if another fails
Compr #1 Stage Sequence # 12 1
1,2, … (# of
Compressors)
M
Sets sequence number for # 1 compressor. If set to 1, it is always
rst to start. If set to 2, it is always second to start. (Note 1)
Compr #1 Staging Mode 11 Normal
Normal, Efciency,
Pump, Standby
M
Normal uses standard sequencing, Efciency starts one
compressor on each unit, Pump starts all compressors on one
chiller rst, Standby uses this compressor only if another fails
Maximum Compressors ON 10 1 1-8 M Total number of compressors allowed to run at one time
BAS Network Protocol 9 MODBUS
None, Local, BACnet,
LonWorks, MODBUS,
Remote
M Sets BAS Standard Protocol to be used, or LOCAL if none
Condenser Pump 6
Pump #1
Only
Pump #1 Only, Pump
#2 Only, Auto Lead, #1
Primary, #2 Primary
M
Pump #1 Only, Pump #2 Only, use only these pumps AUTO,
balance hours between #1 and #2 #1 Primary, #2 Primary, if
primary fails, use other
Evaporator Pump 5
Pump #1
Only
Pump #1 Only, Pump
#2 Only, Auto Lead, #1
Primary, #2 Primary
M
Pump #1 Only, Pump #2 Only, use only these pumps AUTO,
balance hours between #1 and #2 #1 Primary, #2 Primary, if
primary fails, use other
Control Source 3 Switches Switches, Local, BAS O Sets control source. See "Unit Enabling/Disabling" on page 20.
Unit Enable 1 OFF OFF, AUTO O
OFF, everything is off. AUTO, Evap pump on, comp, cond pump
and tower on as required to meet LWT
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.
- Model WMC, C Vintage 1
- HFC-134a Refrigerant 1
- 50/60 Hz 1
- Table of ConTenTs 2
- InTroduCTIon 3
- General Description 4
- W M C 290 D CS 4
- The Control System 5
- Receiving and Handling 6
- Nameplates 6
- Location 6
- Clearance 6
- Mounting 8
- Water Piping 8
- Vessel Drains at Startup 8
- Condenser Water 9
- Temperature Control 9
- Relief Valves 10
- Field Insulation 11
- Field Power Wiring 11
- 12
- 12
- 13
- 14
- InsTallaTIon 16
- Communication Setup for 18
- Multiple Chillers 18
- Long Term Storage 18
- Pre-Start Checklist 19
- Operator Responsibilities 20
- Operator Schools 20
- Sequence of Unit Operation 20
- Unit Enabling/Disabling 20
- Operator Interface Touch 21
- Screen (OITS) 21
- VIEW Screens 22
- Detail View Screen 23
- View Menu Screen 25
- SET Screens 26
- Explanation of Setpoints 27
- TIMERS Setpoints 28
- ALARMS Setpoints 29
- Cooling TOWER Fan Setpoints 31
- Fan Stages 32
- VFD Speed (%) 33
- CAUTION 35
- MOTOR Setpoint Screen 36
- Compressor Capacity Control 37
- Capacity Overrides 37
- MODES Setpoints 38
- WATER Setpoints 39
- Service Screen 40
- HISTORY Screens 41
- Alarm History Screen 42
- Active Alarms Screen 43
- Possible Alarms and Events 44
- MODEL WMC CHILLERS 45
- Problem Alarms 46
- Warning Alarms 46
- The Controller 48
- Menu Structure (Scrolled) 49
- VIEW UNIT VIEW COMPRESSOR 50
- EVAPORATOR 50
- Setting Passwords 52
- Conguring the Control Source 53
- Clearing Alarms 53
- Controller Inputs and Outputs 54
- Controller Setpoints 55
- IOM 1210-1 • MAGNITUDE 56
- Building Automation 58
- Systems (BAS) 58
- Use with On-Site Generators 58
- Service Programs 59
- Chiller Maintenance 59
- Seasonal Shutdown 59
- Seasonal Startup 59
- Maintenance Schedule 60
- Denitions 61
- Temperature / Pressure Chart 64
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