IDEAL HP290 - HP290 Cascade Wiring

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Appendix

135

Installation and Maintenance

1.4 HP290 CASCADE WIRING

For HP290 Cascade information go to https://idealheating.com/hp290-heat-pump-guides.

Main Page

Table of Contents3
Section 1 - General6
Literature Symbols6
Documentation6
General Safety Instructions6
Regulations7
System Configurations8
Figure 1. System Configurations8
Section 2 - Product Information9
ERP Data9
Heat Pump Outdoor Unit9
Table 1 Data - Heat Pump Outdoor Unit9
Table 3 Heat Pump Air Flow Minimum Dimensions10
Table 2 Dimensions and Clearances10
Figure 2. Heat Pump - Dimensions10
Figure 3. Heat Pump - Clearances10
Table 4 Clearances between Multiple Units11
Figure 4. Clearances between Multiple Units11
DHW Cylinders12
Table 5 Single Zone Pre-Plumbed Cylinders12
Figure 5. Plan View - PP Single Zone - 475 MM12
Figure 6. Plan View - PP Single Zone - 550 MM12
Figure 7. HP290 DHW Pre-Plumbed Slimline Cylinder180L & Control Box 1-Zone13
Figure 8. HP290 DHW Pre-Plumbed Cylinder 180L & Control Box 1-Zone13
Table 6 Two Zone Pre-Plumbed Cylinders with Integrated Low Loss Header14
Figure 9. Plan View - PP Two Zone LL - 475 MM14
Figure 10. Plan View - PP Two Zone LL - 550 MM14
Figure 11. HP290 DHW Pre-Plumbed Slimline Cylinder 210L, Control Box & Low Loss Header 2-Zone15
Figure 12. HP290 DHW Pre-Plumbed Cylinder 250L, Control Box & Low Loss Header 2-Zone15
Table 7 Single Zone Pre-Plumbed Cylinder with Integrated Buffer16
Figure 13. Plan View - PP Single Zone Buff - 550 MM16
Figure 14. Plan View - PP Single Zone Buff - 630 MM16
Figure 15. HP290 DHW Pre-Plumbed Cylinder 210L, Control Box & Buffer 1-Zone17
Figure 16. HP290 DHW Pre-Plumbed Cylinder 300L, Control Box & Buffer 1-Zone17
Table 8 Two Zone Pre-Plumbed Cylinder with Integrated Buffer18
Figure 17. Plan View - PP Two Zone Buff - 550 MM18
Figure 18. Plan View - PP Two Zone Buff - 630 MM18
Figure 19. HP290 DHW Pre-Plumbed Cylinder 210L, Control Box & Buffer 2-Zone19
Figure 20. HP290 DHW Pre-Plumbed Cylinder 300L, Control Box & Buffer 2-Zone19
Control Box20
Table 9 Control Box20
Figure 21. Control Box - Dimensions20
Figure 22. Control Box - Clearances20
Contents Provided with Appliance21
Table 10 Content Provided with DHW Cylinders21
Location of Data Plates22
Figure 23. Heat Pump - Location of Data Plate and Serial Number22
Figure 24. DHW Cylinder - Location of Data Plates22
Figure 25. Control Box - Location of Data Plates22
Heat Pump Operating Principles23
Figure 26. Closed Refrigerant Circuit23
Section 3 - Pre-Installation Checks24
System Combinations24
Primary Heating System Requirements24
Table 11 System Specification24
Heat Pump - Installation Area25
Figure 27. Heat Pump PRV Outlet (4.5-6 Kw Model Shown)26
Figure 30. Installation in Corner27
Figure 28. Freestanding Installation27
Figure 29. Installation in Front of Wall27
Cylinder - Installation Area28
Control Box - Installation Area29
Section 4 - Installation30
Installation of Heat Pump30
Figure 31. Dimensions of Mounting Fixtures (8 - 14 Kw)30
Figure 32. Dimensions of Mounting Fixtures (4.5 - 6 Kw)30
Table 12 Weights of Unpackaged Units31
Figure 33. Heat Pump Base Panel (4.5 - 6 Kw)33
Figure 34. Heat Pump Base Panel (8 - 14 Kw)33
Figure 35. Condensate Spigot Installation33
Table 13 Connection Sizes34
Figure 36. Primary Heating Connections34
Figure 37. Heat Pump - Panel Removal35
Figure 38. Transport Bracket Installation36
Figure 39. Routing the Cables38
Figure 40. Mains Supply Connections to Outdoor Unit39
Figure 41. Communications Connections between Outdoor Unit and Control Box39
Installation of Indoor DHW Cylinder40
Table 14 Sizing of Copper Discharge Pipe42
Figure 42. Typical Discharge Pipe Arrangement42
Figure 43. Immersion Heater Wiring43
Installation of Control Box44
Figure 44. Front Panel Removal44
Figure 45. Front Panel Mounting45
Figure 46. Control Box - Internal Wiring46
Figure 48. Installer Wiring Connections47
Figure 47. Contactor Diagram47
Installation of System49
Section 5 - Commissioning50
Pre-Commissioning Checklist50
Commissioning of Hydronic Circuit50
Table 15 Pre-Commissioning Checklist50
Table 16 Glycol Concentration Vs Expected Min. Outdoor Temp51
Table 17 Glycol Concentration Vs Performance51
Figure 49. Typical Antifreeze Valve51
Figure 50. Antifreeze Installation Recommendations51
Filling the System52
System Air Venting52
Figure 51. Auto Air Vent Dust Cap52
Activation of System53
Table 18 USB Changed Parameters53
Figure 52. Types of HP290 Control Box Which Require DIP Switch S2 Position 1 to be Set to on53
Figure 53. HP290 Monobloc (Access to Outdoor Control PCB)54
Figure 54. HP290 Heat Pump Controller54
Figure 55. Outdoor PCB55
Figure 56. Control Box Display55
Heat Pump Indoor Control Box Homepage58
Figure 57. Control Box Homepage Display58
Operating Status59
Menu59
Figure 58. Operating Status Display59
Figure 59. Menu Display59
Figure 60. HP290 Standard Curve Graph61
Table 19 Table of Limitation75
Default System Parameters78
Table 20 System User Parameters78
Table 21 System Installer Parameters82
Section 6 - Inspection and Maintenance85
Normal Operation Features85
Overall Maintenance Plan Table85
Table 22 Maintenance Tasks85
Heat Pump Service & Maintenance Procedure86
Figure 61. Heat Pump - Top and Side Panel Installation86
Figure 62. Heat Pump - Electrical Panel Installation86
Figure 63. Front Panel Removal87
Section 7 - De-Commissioning89
Commissioning89
Section 8 - Recycle & Disposal90
Packaging90
End of Product Life90
Section 9 - Fault Finding91
Fault Help91
Figure 64. XT1 Connector96
Figure 65. Indoor PCB (Section View)99
Figure 66. XT1 Connector101
Table 23 Discharge Pressure (P1) for Heating/Dhw Mode107
Figure 67. Main Control Circuit Board (Outdoor)116
Table 24 Main Circuit Board (Outdoor)117
Appendix118
System Schematics118
Pump Pressure Curves127
Figure 68. Refrigerant Circuit Diagram129
R290 Outdoor Unit Wiring Without Indoor Unit130
Figure 69. R290 Outdoor Unit Wiring Diagram130
HP290 Cascade Wiring135
Introduction147
Safety147
Protective Safety Zone148
General Information149
User Guide149
Basic Heat Pump Operating Principle149
Basic Functions150
Controller and Display Functions150
Trouble Shooting155
HP290 Alarms156
Fault Codes157
Warranty159

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