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Frequently Asked Questions

Q: What is the proper glycol to water percentage or mixture?

A: G&D Chillers recommends a 35% Inhibited Propylene Glycol to 65% water (24.75 brix). Measure the solution using a glycol refractometer.

Q: What is Glycol?

A: Glycol is an antifreeze. There are two main types of glycol: propylene and ethylene. In food applications propylene glycol is used as it is non-toxic. Ethylene Glycol is typically used in industrial type applications.

Q: Where do I set or install my chiller?

A: The chiller location is typically outside on a concrete pad. They can be installed on the roof of your building, but that requires a roof capable for supporting the chiller operating weight. We do not recommend installing a chiller indoors in most applications.

Q: What is the lead time to build my new chiller?

A: This varies depending on the time of year. A typical lead time is 4-6 weeks

Q: How much maintenance does a package chiller require?

A: Maintenance is minimal. Measure the glycol mixture quarterly throughout the year. Keep the condenser clear of obstructions and free of leaves and debris. It is good to establish a relationship with a qualified technician in your area. Yearly inspections after the 1st or 2nd year are a good idea. G&D partners with multiple service companies throughout the country if you need a recommendation.

Q: Do you provide consultation on how to pipe my glycol supply and return and tanks?

A: Along with the purchase of your chiller we will fully design and size your supply and return mainline. We will work directly with you and/or your team to ensure that the system is installed correctly. Contact us directly to discuss our Pre-insulated piping options.

Q: What size chiller do I need?

A: There are many variables involved with the sizing of a Glycol Chiller. We have a team ready to ask you the questions to determine your precise requirements.

Q: What is a BTU?

A: British Thermal Unit: the amount of energy needed to cool or heat one pound of water by one degree Fahrenheit.

Q: What does it mean when someone says you need a 5 ton chiller?

A: A ton is a measurement of btus. 1 ton = 12,000 btus. It is important to know how many btus a particular chiller can produce at your required leaving glycol/water temperature.

Q: Is a 5 HP chiller the same as a 5 ton chiller?

A: NO. This is where it can sometimes get confusing. At air conditioning temperatures a 5 HP compressor can produce close to 5 tons of cooling. If your application requires lower glycol fluid temperature, that same 5 HP compressor will produce less btus/tons. Thus, more horse power is required to produce 5 tons at those lower temperatures.