github-mirrors/HeatPumpController
1
0
Fork 0
mirror of https://github.com/openhp/HeatPumpController.git synced 2024-11-08 12:25:43 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Update README.md

Browse source
This commit is contained in:
openhp 2021-03-28 19:45:22 +00:00 committed by GitHub
parent cb02f3b01e
commit d3c8f1bd50
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 13 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
README.md
View file

@ -74,31 +74,31 @@ To check temperature sensors connectors prepare one array of sensors. Plug it to
## Wiring
Wiring is very simple despite the many connections: <br>
Phases (1st wire in electrical cables):
- connect the "power inlet" wire to one of the "phase" connectors,
- connect the "power inlet" wire to one of the "phase" terminals,
- and connect the second "phase" connector to the AC input of the 12V power supply,
- connect the "Compressor" relay output to the Compressor input,
- connect the relay output "Hot CP" to the input of the Hot Circulation Pump (pump of the water floor heating system or the fan input of the indoor unit if you are using an air system),
- connect the relay output "Cold CP" to the input of the Cold Circulation Pump (ground loop pump for geothermal systems or the inlet of the outdoor unit air fan if you are using an air system),
- when using a compressor heater: connect the "Crankcase heater" output to the heater cable input (highly recommended for outdoor installation and year-round use)
- connect the relay output "Hot CP" to the input of the Hot Circulation Pump (either pump of the water floor heating system or the fan input of the indoor unit if you are using an air system),
- connect the relay output "Cold CP" to the input of the Cold Circulation Pump (either ground loop pump for geothermal systems or the inlet of the outdoor unit air fan if you are using an air system),
- when using a compressor heater: connect the "Crankcase heater" output to the heater cable input (highly recommended for outdoor installation and year-round use).
Neutral (2nd cable in electrical cables),
- connect all the second wires to the "neutral" connectors on the board.
- connect all the secondary wires to the "neutral" connectors on the board.
{-Photo of HV connections-}<br>
Crimp and connect low-voltage connectors:
- SCT013 sensor (the only low-voltage device in the circuit with interchangeable contacts), connect and install on the phase inlet wire,
- RS485 through a wire of the desired length to the remote control display (if used, another control method is a local computer with a USB-UART converter, you may like it for the first time). Note that A is connected to A in the display, B to B and GND to GND,
- you can power the display from a 12V controller, the board has 12V and GND secondary pins,
- EEV to EEV connector,
- T sensors to T sensors connectors,
- connect the outputs of the pressure sensors: 1st wires together to the right pin, 2nd cold side wire to the left terminal, 2nd hot side wire to the middle terminal; use the dummy when pressure sensors are not in use.
Crimp and plug low-voltage connectors:
- SCT013 sensor (the only low-voltage device in the circuit with interchangeable contacts), connect and install it on the phase inlet wire,
- RS485 through a wire of the desired length to the remote control display (if used, another control method is a local computer with a USB-UART converter, you may like it for the first time). Note that A is connected to A of the display, B to B and GND to GND,
- you can power the display from a 12V controller, the board has 12V and GND secondary terminals,
- EEV to EEV terminal,
- T sensors arrays to terminals,
- connect the outputs of the pressure sensors: 1st wires together to the right pin, 2nd cold side wire to the left terminal, 2nd hot side wire to the middle terminal; use the dummy if no pressure sensors used in your system.
You may prefer to solder the wires over using connectors. But in this case, it will be more difficult to disassemble the system if you want to change something. The choice is yours.<br>
{-Photo: T sensors with abbreviations and full names-}<br>
{-Photo: RS485 and 12V power for display-}<br>
{-Photo: all together-}<br>
And one more: **remember about 230V inside!** Do not turn on the phase without need.<br>
Have you ever recieved 230V with your hands? If yes - you know. If no - do not try.<br>
Have you ever received 230V with your own hands? If yes - you know. If no - do not try.<br>
Also, remember about animals and children, before installing permanently.<br><br>