The following spare parts are available for the model number GR1000A:
Controls
| Part name | Also known as |
| 108221-RJ45-1 - Surface Mounted Control Panel | |
| AC-AMBI-RJ45 - Control PCB for Ambient/LPHW AC Unit | Control control box for Ambient/LPHW AC Unit, Control controller for Ambient/LPHW AC Unit, Control ignition controller for Ambient/LPHW AC Unit, Control electronic controller for Ambient/LPHW AC Unit, Control auto ignition controller for Ambient/LPHW AC Unit, Control main burner relay for Ambient/LPHW AC Unit, Control control board for Ambient/LPHW AC Unit |
| AC-DC - Door Contact Set | |
| AC-TC - Honeywell Timeclock | |
| LPHWBU45-1 - Control Panel (base unit) | |
| SC-OS - Smartcom Outside Air Sensor |
Filter
| Part name | Also known as |
| 1026665 - Inlet cover filter 320 x 1000m | |
| 1026962 - Filter securing clip GR 3.0m |