Daikin Navigator WWV, Installation, Operation And Maintenance Manual

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IOM 1264-1 • NAVIGATOR
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MODEL WWV CHILLERS 22 www.DaikinApplied.com
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Tower Control
Tower Control
None None, Condenser EWT, Condenser LWT
Number of Tower Fan Stages 1 1, 2
Tower Fan Stage 1 On Temperature 70°F (21.11°C) 66.2 to 120°F (19 to 48.89°C)
Tower Fan Stage 2 On Temperature 75°F (23.89°C) 66.2 to 120°F (19 to 48.89°C)
Tower Fan Stage Off Differential 3°F (1.67°C) 1 to 10.0°F (0.56 to 5.56°C)
Tower Fan Stage On Delay 2 minutes 1 to 60 minutes
Tower Fan Stage Off Delay 5 minutes 1 to 60 minutes
Tower Fan Stage On Position/Speed 80% 0 to 100%
Tower Fan Stage Off Position/Speed 30% 0 to 100%
Valve/VFD Control Configuration None
None, Valve Set Point, Valve Stage, VFD Stage, Valve SP/VFD
Stage
Valve Type NC to Tower NC to Tower, NO to Tower
Valve/VFD Set Point 18.33°C (65°F) 15.56 to 48.89°C (60 to 120°F)
Minimum Valve Position 10% 0 to 100%
Maximum Valve Position 90% 0 to 100%
Minimum VFD Speed 25% 0 to 100%
Maximum VFD Speed 100% 0 to 100%
Valve PID Proportional Gain Factor 1.0 0 to 100
Valve PID Integral Time 2.0 minutes 0 to 100 minutes
VFD PID Proportional Factor 1.0 0 to 100
VFD PID Integral Time 2.0 minutes 0 to 100 minutes
Unit Sensor Offsets
Evaporator LWT Senser Offset
0°F (0°C) -9.0 to 9.0°F (-5.0 to 5.0°C)
Evaporator EWT Senser Offset 0°F (0°C) -9.0 to 9.0°F (-5.0 to 5.0°C)
Condenser LWT Senser Offset 0°F (0°C) -9.0 to 9.0°F (-5.0 to 5.0°C)
Condenser EWT Senser Offset 0°F (0°C) -9.0 to 9.0°F (-5.0 to 5.0°C)
Circuit Configuration
Pumpdown Pressure 200.0 kPa (29.0 psi) 70 to 280 kPa (10.2 to 40.6 psi)
Pumpdown Time Limit 120 sec 0 to 180 sec
Start To Start Time Delay 15 min 15 to 60 minutes
Stop To Start Time Delay 3 min 3 to 20 minutes
Alarm and Limit Settings - Unit
Evaporator Fluid Freeze
36°F (2.2°C) See section below
Evaporator Flow Loss Delay 15 sec 5 to 15 sec
Evaporator Recirculate Timeout 3 min 1 to 10 min
Condenser Fluid Freeze 36°F (2.2°C) See section below
Condenser Flow Loss Delay 15 sec 5 to 15 sec
Condenser Recirculate Timeout 3 min 1 to 10 min
Alarm and Limit Settings - Circuits
Low Evap Pressure Unload
29.0 psi (200.0 kPa) See below
Low Evap Pressure Hold Offset 2.2 psi (15 kPa) 1.5 to 7.3 psi (10 to 50 kPa)
High Oil Pressure Delay 30 sec 10-30 sec
High Oil Pressure Difference 36.3 psi (250 kPa) 0.0 to 60.2 psi (0.0 to 415.0 kPa)
High Discharge Temperature 230°F (110°C) 149 to 230°F (65 to 110°C)
High Condenser Pressure Hold Offset 2.7°F (1.5°C)
2.7 to 27°F (1.5 to 15°C) - Value forced to be at least 0.9°F (0.5°C)
greater than the High Condenser Pressure Unload Offset setting.
High Condenser Unload Offset 1.8°F (1.0°C) 1.8 to 25.2°F (1.0 to 14°C)