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ATWC-45
Nordic ATWC-45 Heat Pump Manuals
Manuals and User Guides for Nordic ATWC-45 Heat Pump. We have
1
Nordic ATWC-45 Heat Pump manual available for free PDF download: Installation And Service Manual
Nordic ATWC-45 Installation And Service Manual (106 pages)
High Temperature Air to Water Heat Pump
Brand:
Nordic
| Category:
Heat Pump
| Size: 26 MB
Table of Contents
Table of Contents
4
Tables & Documents
5
ATWC System Description
6
General Overview
6
Heating Mode
6
Auxiliary Heat
6
Defrost Operation
6
Cooling Mode
6
One or Two Buffer Tanks
7
Single Buffer Tank Systems
7
Dual Buffer Tank Systems
7
ATWC Sizing
8
Air Source Heat Pumps
8
Heat Pump Sizing for Space Heating/Cooling
8
Auxiliary Heat Sizing
8
Table 1 - Heat Pump Size Vs. Heated Area
8
Table 2 - Auxiliary Heat Sizing
8
Installation Basics
9
Sample Bill of Materials
9
Unpacking the Unit
9
Indoor Unit Placement
9
Outdoor Unit Placement
10
Line Sets
10
Outdoor Unit Mounting Height
10
Outdoor Fan Speed Reduction
10
Average Max. Snow Depth Map - Canada
11
Wiring
12
Indoor Unit Power Supply Connections
12
Outdoor Unit: Power Connections
12
Indoor Loop Circulator Pump Wiring
12
Control Transformer
12
Table 3 - Power Supply Connections
12
Table 4 - Outdoor Unit Power Supply Connections
12
Table 5 - Indoor Loop Circulator Connections
12
Table 6 - Control Transformer
12
Bacnet Connections
13
Setpoint Control Connections
13
Setpoint Control: Aux. Connections
13
Table 7 - Bacnet Connections
13
Table 8 - Setpoint Control Connections
13
Table 9 - Setpoint Control: Aux. Connections
13
Outdoor Unit: Signal Connections
14
Aquastat Connections (Optional)
14
Disable Switch (Field Installed)
14
Defrost Indicator (Field Installed)
14
Table 10 - Outdoor Unit Signal Connections
14
Table 11 - Aquastat (Signals Control) Connections
14
002543CDG - Typical ATWC/ATW2 Series Wiring
15
002375QSS - Altsource Tanks: Getting Started
16
002067CDG - Typ. Heating Only Zone Wiring (Setpoint)
17
002068CDG - Typ. Htg/Cooling Zone Wiring (Setpoint)
18
Piping
19
Number of Tanks
19
Indoor Loop Water Lines
19
Table 12 - Buffer Tank Size
19
002540PDG - Piping Connections - Space Heating/Cooling . 20 002366PDG - Recommended Buffer Tank Piping
21
002528PDG - Buffer Tank Piping - Multiple Units
22
002252PDG - 2 Tank Piping with a Reversing Heat Pump
23
002527PDG - 2 Tank Piping W/Multiple Rev. Heat Pumps
24
002367PDG - Auxiliary Boiler Piping
25
000530PDG - Typical Zone Types
26
002541PDG - Piping Connections - Direct DHW Heating
27
002545PDG - Tank Piping for Direct DHW Heating
28
Outdoor Unit Line Sets
29
Line Set Interconnect Tubing
29
Indoor Unit Connections
29
Outdoor Unit Connections
29
Oil Traps
29
Filter-Dryer
29
Table 13 - Line Set Sizing
29
Table 14A - 3-Way Service Valve Tooling
29
Table 14B - 3-Way Service Valve Torques
29
Pipe Insulation
30
Silver Soldering Line Sets
30
Pressure Testing
30
Vacuuming the System
30
Charging the System
30
Table 15 - Extra Charge for 3/8" / 3/4" Line Sets
30
Table 16 - Extra Charge for 1/2" / 7/8" Line Sets
30
002544CDG - Typical ATWC Line Set Connections
31
Operation
32
Bacnet Control
32
Signals / Hardwired Control
32
Setpoint Control
32
Setpoint Control Method 1 - Indoor Loop (ICR) One Tank
32
Typical ATWC-Series Setpoints
33
Top up S1 Function
33
Summer Setback
33
Hydronic Auxiliary in Defrost
33
Table 17 - Typical ATWC-Series Setpoints
33
Table 18 - Maximum Output Temperature
33
Outdoor Reset
34
Setpoint Control Method 2 - Indoor Loop (ICR), 2 Tanks
34
Setpoint Control Method 3 - External HTS/CTS, One Tank
35
Setpoint Control Method 4 - External HTS/CTS, 2 Tanks
36
PC Application (PC App)
37
LCD Interface & Menus
49
Bacnet Interface
51
Table 19 - Bacnet Objects - Control Signals (Read/Write)
51
Table 20 - Bacnet Objects - Operation Mode Description (Read Only)
51
Table 21 - Bacnet Objects - Data (Read Only)
52
Table 22 - Bacnet Objects - Alarm Descriptions (Read Only)
53
Table 23 - Bacnet Objects - Fault Descriptions (Read Only)
54
Startup Procedure
55
Pre-Start Inspection
55
Unit Startup
56
Startup Record
57
Routine Maintenance
58
Troubleshooting Guide
59
Repair Procedures
68
Pumpdown Procedure
68
General Repair Procedure
68
Vacuuming & Charging Procedure
68
Compressor Replacement Procedure
69
Control Board Replacement Procedure
70
LCD Interface (Display) Board Replacement Procedure
71
Model Specific Information
72
Shipping Information
72
Refrigerant Charge
72
Indoor Loop Flow Rates
72
Operating Temperature Limits
72
Sound Levels (Dba)
72
Table 24 - Shipping Information (Indoor Unit)
72
Table 25 - Shipping Information (Outdoor Unit)
72
Table 26 - Refrigerant Charge
72
Table 27 - Indoor Loop Flow Rates
72
Pressure Drop Data
73
Table 31 - Loop Pressure Drop Data
73
Performance Tables
74
Electrical Specifications
80
Table 32 - ATWC-Series Electrical Specifications
80
Wiring Diagram (208/230-1-60)
81
Electrical Box Layout (208/230-1-60)
82
Wiring Diagram (208-3-60)
83
Electrical Box Layout (208-3-60)
84
Wiring Diagram (460-3-60)
85
Electrical Box Layout (460-3-60)
86
ACEC-45/55 Wiring Diagram
87
ACEC-65/75/80/100 Wiring Diagram
88
ATWC Refrigeration Circuit - Cascade Heating Mode
89
ATWC Refrigeration Circuit - Warm Weather Heating Mode . 90 ATWC Refrigeration Circuit - Defrost/Cooling Mode
91
Dimensions: ATWC-45/55
92
Dimensions: ATWC-65
94
Dimensions: ATWC-75/80/100
96
Appendix A: Control Board Description
98
Table A1 - Control Board Connector Descriptions (Top)
99
Table A2 - Control Board Connector Descriptions (Left Side)
99
Table A3 - Control Board Connector Descriptions (Bottom)
100
Table A4 - Control Board Connector Descriptions (Right Side)
101
Appendix B: USB Driver Installation
102
Appendix C: PC App Installation
103
Appendix D: Updating Firmware
104
Warranty
106
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