I am building a trans-critical store in my home town and will be firing it up in 1 month. Should be interesting. 8 heat reclaim zones running off the rack adding up to 3000 ft of stainless 1" tubing. (Gas cooler on the roof is 2" s.s., all refrigeration piping is 5/8" type L ACR.) Total charge should be around 1200 lbs of CO2. We also have 151 Sporlan case controllers with 151 transducers and at least 300 temp probes running EEVs on a Microthermo setup. Now that really scares me.