Daikin UATYA-B Manuals

Manuals and User Guides for Daikin UATYA-B. We have 1 Daikin UATYA-B manual available for free PDF download: Operation Manual

Daikin UATYA-B Operation Manual (126 pages)

Brand: Daikin | Category: Air Handlers | Size: 5.66 MB

Table of Contents
5
Introduction
9
General
9
C.pco Controller Functions
9
The Screens
10
Screen Tree
10
Screen Menu
11
Software Functions
12
Introduction
12
Set Point Management
13
Dynamic Set Point
13
Dynamic Setpoint from External Air Probe in Cooling Mode
14
Dynamic Setpoint from External Air Probe in Heating Mode
15
Temperature Control
16
Thermoregulation in Cooling Mode
17
Thermoregulation in Heating Mode
20
Disabling Heating Sources Depending on External Air Temperature
22
Pre-Heating Coil
23
Humidity Control
24
Relative Humidity Control with Proportional Control
25
Relative Humidity Control with PID Control
26
Absolute Humidity Control with Proportional Control
26
Absolute Humidity Control with PID Control
27
Air Humidification
28
Ancillary Built-In Humidifier Functions
28
Air Dehumidification
29
Cooling Limitation in Dehumidification Cycle
29
Priority between Temperature and Humidity Control
30
Tips for PID Controller Setup
31
Room Ventilation
32
Ventilation in Delivery Line
32
Constant Flow Ventilation Control
33
Variable Flow Ventilation Control
34
Ventilation Control with Constant Pressure Difference
35
Ventilation Control at Constant Pressure
36
Min. and Max. Temperature Limitation in Delivery Line
39
Special Conditions
40
Ventilation in Return Line
41
Constant Flow Ventilation Control
42
Ventilation Control at Constant Pressure
43
Ventilation Control with Constant Pressure Difference
44
Ventilation Control Based on a Percentage of the Delivery Value
46
Special Conditions
46
Power Supply Control
47
Phase Sequence
47
Min. / Max. Voltage
47
Fast Restart
47
Circuits and Compressors
49
Starting and Stopping of the Compressors
49
Management of Compressor with Inverter
50
Capacity Reduction Override
52
Circuits and Compressors - Functions
55
Oil Return for Compressors Managed with Inverter
55
Damper Management
56
Damper Control
58
Damper Management
58
Unit Start-Up
58
Washing
58
Recirculation
59
Free Cooling
59
Free Heating
61
Enthalpy-Based Free Cooling and Free Heating
63
Air Change in the Room
64
Co Control
64
VOC Control
65
Limitation of Damper Operation
66
Limitation Based on Condensing Pressure in Heating Mode
66
Limitation Based on Evaporating Pressure in Cooling Mode
68
Limitation Based on Evaporating Pressure in Heating Mode
68
Limitation Based on Condensing Pressure in Heating Mode
69
Min. Opening in Relation to External Air Temperature
70
Min. Opening in Connection with Dehumidification
70
Management of External Air Damper During Defrosting
70
Source-Side Ventilation
71
Condensation Control
71
Night Shift System Function
73
Evaporation Control
74
Auxiliary Heating
76
Auxiliary Heating and Heating by Refrigerant Circuit
76
Controlled Devices
77
Post Heating
78
Single Source for Winter Heating
78
Auxiliary Heating in both Winter and Summer Operation
78
Defrosting
79
Simultaneous or Separate Defrost
80
Check of Conditions for the Defrost Cycle at Fixed Evaporating Temperature
80
Preparation for Cycle Reversal
80
Refrigeration Cycle Reversal and Defrost
81
Forcing of a Defrost Cycle
81
Management of Auxiliary Heating During Defrost Cycle
82
Special Management Logics During Defrosting
82
Other Functions
83
Management of Control Probe Error
83
Heater in Condensate Drip Tray
83
Leak Detector" Management
83
Management of Operating Mode Switching
85
Automatic Mode Switching
85
Flow Rate Reduction Upon Achievement of Temperature Setpoint
86
Activation According to Time Bands
87
Enabled Functions
88
Option Management
88
Alarms
89
Introduction
89
Automatic/Manual Procedure and Alarm Reset
89
File "Alarm.conf
90
Unit Alarms
91
Air Flow Alarm
91
Dirty Filters Alarm
91
Humidity Alarm
92
Return Temperature Alarm
93
Delivery Temperature Alarm
94
Low External Air Temperature Alarm
95
Thermal Overload Switch Alarm in Ventilation Unit
96
Power Supply Alarm
97
Ventilation Unit Maintenance Alarm
98
Eeprom Error Alarm
98
Alarm: Access Error to Internal Memory
99
Internal Memory Error Alarm
99
External Alarm
100
C.pcoe Communication Error Alarm
100
Function Alarms
101
Fire/Smoke Alarm
101
Electronic Valve Driver Alarm
102
Humidifier Alarms
102
Heater Alarms
103
Defrost Cycle Ended Due to Max. Time Achieved
104
Leak Detector" Alarms
104
General Boiler and Burner Alarms
105
Circuit Alarms
106
High-Pressure Alarms
106
Low Pressure Alarms
106
High Discharge Gas Temperature Alarm
108
Alarm for Low Difference between High and Low Pressure
109
Low Superheating Alarm
109
Compressor Alarms
110
Compressor Maintenance Alarm
110
Alarm for Compressor Operation Outside Envelope
110
Compressor Inverter Alarm
111
Compressor Thermal Overload Switch Alarms
111
Probe Error Alarms
112
Temperature Probes
112
Humidity Probes
114
Pressure Probes
115
Air Quality Probes
117
Faq
118
Frequently Asked Questions
118
Switching the Unit on and off
118
Switch the Unit on and off from the Display
118
Switch the Unit on and off from External OK Signal
118
Switch the Unit on and off from the BMS
118
Change of Set Points
119
Setpoint Editing from Display
119
Setpoint Editing from BMS
119
Change Language
119
Changing the Date and Time
120
Setting of Time Bands
120
Replacing the Serial Protocol
121

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