Daikin Enfinity VFC Installation And Maintenance Manual page 35

Table 22: Occupied, Bypass Mode, Standby or Tenant Override Modes
Description*
Occupied, Bypass Mode, Standby or
Tenant Override Modes
• Unit is operating normal. It may currently have a control signal or ready to operate when a control signal is active.
Troubleshooting Refrigeration Circuit
Figure 33: Troubleshooting Refrigeration Circuit
Symptom Head Pressure
Charge
Undercharge System
(Possible Leak)
Overcharge System
Low Air Flow Heating
Low Air Flow Cooling
Low Water Flow Heating
Normal
Low Water Flow Cooling
High Air Flow Heating
High Air Flow Cooling
High Water Flow Heating Normal
High Water Flow Cooling
TXV Restricted
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Type
Mode
Suction Compressor
Pressure Amp Draw
Low Low Low
High High High
High High High
Low Low Low
Low Low
Low
Normal
High High High
Low Low Low
Low High Normal
Low Normal
Low Low Low
Normal
High Low
Low
Yellow
OFF
Super Heat Subcooling
High Low
Normal High
High
Low
Normal
Low
High
Normal
Low High
High Low
Low High
High Low
High Normal
Low High
High High
35 Enfinity Vertical Water Source Heat Pumps • IM 930-6
t
roubleshooting
Green Red
ON OFF
Water
Air Temp (loops)
Safety Lock Out
Differential Temp
Differential
Low Low Low Pressure
Normal
Normal High Pressure
Low
High Low High Pressure
High Low
Low High
Low High High Pressure
Low Low
Low Normal High Pressure
Normal Low High Pressure
Normal Low
Low Low
Low Temp
Low Temp
Low Temp
Low Temp