It's not too difficult to get a quote for a chiller only from any of the manufacturers.
There are also the problems associated with "sweet spots" in certain manufacturing ranges of products for different products. For example, the price for a 175TR air-cooled chiller of Carrier may be relatively lower per TR as compared to the price of a 190TR unit, since this is probably the starting size of the next higher "chassis". The 175TR would be the biggest size in the smaller chassis. The differences can be significant in terms of "per TR or KW" prices, if one were to go by thumb rule. This must be true for other manufacturers too like Trane or York or McQuay, who may have different sweet spots.
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