Daikin EWYD-BZ Series Manuals

Manuals and User Guides for Daikin EWYD-BZ Series. We have 1 Daikin EWYD-BZ Series manual available for free PDF download: Installation, Maintenance & Operation Manual

Daikin EWYD-BZ Series Installation, Maintenance & Operation Manual (64 pages)

Inverter air to water heat pumps

Brand: Daikin | Category: Heat Pump | Size: 2.39 MB

Table of Contents
3
General Information
5
Purpose of this Manual
5
Receiving the Machine
5
Checks
5
Nomenclature
6
Technical Specifications
7
Storage
15
Operation
15
Figure 1 - Operating Limits in Cooling Mode - EWYD~BZSS / EWYD~BZSL
16
Figure 2 - Operating Limits in Heating Mode - EWYD~BZSS / EWYD~BZSL
16
Moving and Lifting
17
Safety
17
Responsibility
17
Shipping
17
Mechanical Installation
17
Positioning and Assembly
18
Figure 3 - Lifting the Unit
18
Minimum Space Requirements
19
Figure 4 - Minimum Clearance Requirements for Machine Maintenance
19
Sound Protection
20
Water Piping
20
Figure 5 - Minimum Recommended Installation Clearances
20
Figure 6 - Water Piping Connection for Evaporator
21
Figure 7 - Water Piping Connection for Heat Recovery Exchangers
21
Table 1 - Acceptable Water Quality Limits
22
Installing the Flow Switch
22
Evaporator and Recovery Exchangers Anti-Freeze Protection
22
Water Treatment
22
Hydronic Kit (Optional)
23
Figure 8 - Adjusting the Safety Flow Switch
23
Figure 9 - Single- and Twin-Pump Hydronic Kit
23
Figure 10 - Low Lift Water Pumps Kit (Option on Request) - Lift Diagrams
24
Figure 11 - High Lift Water Pumps Kit (Option on Request) - Lift Diagrams
25
Figure 12 - Evaporator Pressure Drop
26
Figure 13 - Partial Heat Recovery Pressure Drop
27
Electrical Wiring
28
Electrical Heaters
28
Electrical Components
28
General Specifications
28
Electrical Installation
28
Electrical Power Supply to the Pumps
29
Water Pump Control
29
Table 2 - Electrical Data of Optional Pumps
29
Alarm Relays - Electrical Wiring
30
Unit On/ off Remote Control - Electrical Wiring
30
Double Setpoint - Electrical Wiring
30
External Water Setpoint Reset - Electrical Wiring (Optional)
30
Unit Limitation - Electrical Wiring (Optional)
30
The VFD and Related Problems
31
Figure 14 - User Connection to the Interface M3 Terminal Boards
31
The Operating Principle of the VFD
32
The Problem with Harmonics
32
Figure 15 - Power Absorbed by the Compressor Depending on the Load
32
Figure 16 - Typical Diagram of a VFD
33
Figure 17 - Harmonics on the Grid
33
Figure 18 - Harmonic Content with and Without Line Inductance
34
Figure 19 - Harmonic Content Varying According to the Percentage of Non-Linear Loads
34
Operation
35
Operator's Responsibilities
35
Description of the Machine
35
Description of the Refrigeration Cycle
35
Figure 20 - Refrigeration Cycle
36
Description of the Refrigeration Cycle with Heat Recovery
37
Controlling the Heat Recovery Circuit and Installation Recommendations
37
Figure 21 - Refrigeration Cycle with Partial Heat Recovery
38
Compressor
39
Compression Process
39
Figure 22 - Picture of Fr3100 Compressor
39
Figure 23 - Compression Process
40
Cooling Capacity Control
41
Figure 24 - Capacity Control Mechanism for Fr3100 Compressor
41
Figure 25 - Continuously Variable Capacity Control for Fr3100 Compressor
42
Pre-Startup Checks
43
Units with an External Water Pump
44
Units with a Built-In Water Pump
44
Electrical Power Supply
44
Unbalance in Power Supply Voltage
44
Power Supply of Electrical Heaters
45
Startup Procedure
46
Turning on the Machine
46
Table 3 - Typical Working Conditions with Compressors at 100
46
Selecting an Operating Mode
47
Shutdown for a Long Time
47
Starting up after Seasonal Shutdown
47
System Maintenance
48
General
48
Compressor Maintenance
48
Lubrication
48
Routine Maintenance
49
Table 4 - Routine Maintenance Programme
49
Figure 26 - Installation of Control Devices for Fr3100 Compressor
49
Replacement of Filter Dryer
50
Procedure to Replace the Filter Dryer Cartridge
50
Procedure to Replace Oil Filter
51
Replacement of the Oil Filter
51
Figure 27 - Front and Back Views for Fr3100
52
Procedure to Replenish Refrigerant
53
Table 5 - Pressure/ Temperature
53
Standard Checks
54
Temperature and Pressure Sensors
54
Test Sheet
55
Water Side Measurements
55
Refrigerant Side Measurements
55
Electrical Measurements
55
Service and Limited Warranty
56
Periodic Obligatory Checks and Starting up of Appliances under Pressure
57
Important Information Regarding the Refrigerant Used
58

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Daikin EWYD-BZ Series Installation, Maintenance & Operation Manual (64 pages)

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