I have three refrigeration units that share common condenser (all have their own seperate section). The condenser is a Cancoil, don't have the model or serial number at the moment but if it is relevant, I can produce it.
At the moment, the fan control strategy is based on temperture. The condenser has 5 fans. 1st on all the time, remaining are cycled on outdoor temp.
I want to retrofit this condenser to cycle the fans on pressure rather than temperture. The challange is the three independent refrigeration circuits. I have a plan that I came up with but since I've never done this before, I thought I would ask everyone here for any advice or suggestions to avoid and pitfalls if possible.