R22 Phase Out

Posted by & filed under HVAC, refrigerant.

Refrigerant is a working medium used in refrigerant cycle of air conditioning systems and heat pumps where in most cases they undergo a repeated phase transition from a liquid to a gas and back again. Refrigerant varies dependent on the chemical composition it is made up of and is not a one size fits all… Read more »

Boiler Retubing Project

Posted by & filed under Boiler, Boiler Repair, HVAC.

Pleune Service Company completed another boiler retubing job on an existing Cleaver Brooks boiler for a school system in Lansing. We removed 148 tubes from the boiler top pass. We then installed new roll sealed 2 ½ inch steel tubes. The boiler was pressure tested and reassembled for heating service this coming school year in… Read more »

Coil Cleaning

Posted by & filed under coil.

Cleaning of equipment coils is a vital part to maintaining your equipment. It is recommended to have coils cleaned late spring after cotton wood has fallen. This timing gives optimal results for the once-a-year cleaning recommendation. Coil cleaning is a simple process of brushing and hosing away debris build up. In more severe cases a… Read more »

Compressor Oil Analysis

Posted by & filed under Uncategorized.

Oil analysis is a key tool used to ensure that compressors stay up and running. Compressor Oil or Lubricant is a necessary component in any air conditioning system that uses compressor(s) in its compression system. There are three main purposes of the oil: lubrication, removal of heat and for sealing. There are three main categories of oil analysis which include: fluid properties, contamination, and wear debris…. Read more »

Chiller Start-up

Posted by & filed under Chillers, Chillers.

Is your chiller being taken care of properly? Proper commissioning, seasonal startup, and shutdown procedures along with a regular maintenance program help to ensure that your chiller is dependable and working efficiently. Chilled water systems are typically used for cooling medium and large buildings and, although are more costly upfront, have proven to have greater… Read more »

Boiler Retubing

Posted by & filed under Boiler, Boiler Repair, HVAC.

Pleune Service Company’s boiler team recently retubed a fire tube boiler at a local high school. The job consisted of removing 24 tubes that had corrosion leaks and reinstalling new steel tubes. After the tubes are placed in the shell, they are expanded and roll sealed to produce a watertight connection. Retubing boilers instead of… Read more »

Are You Thinking About Your Building Management System?

Posted by & filed under Building Automation System, Building Management System, Controls.

A Building Management System (also known as a Building Automation System) is a computer based control system that controls and monitors mechanical, electrical, lighting, security and many other HVAC automated building functions. Within the past year cyber security and technology has been in an ongoing update process. More and more building owners are making the… Read more »

Pleune’s COVID19 Response

Posted by & filed under Uncategorized.

As we continue to navigate through COVID19 and as Flu season is upon us, we want to ensure the health and safety of our technicians and customers while ensuring business continuity to minimize further disruptions. We are continuing to operate with precautionary measures in place to reduce the risks to both our techs and our… Read more »

CSD-1 Testing for State of Michigan Boiler Compliance

Posted by & filed under Uncategorized.

What is a CSD-1? CSD-1 is a guideline that has been adopted as code in numerous states. CSD stands for Controls and Safety Devices, the rules of this Standard cover requirements for the assembly, installation, maintenance, and operation of controls and safety devices on automatically operated boilers directly fired with gas, oil, gas-oil, or electricity,… Read more »

Air Filters – Are They Really Important?

Posted by & filed under Air Filters, Equipment Maintenance, HVAC, indoor air quality.

Are they really important? In short, yes! Air filters are central, but often under-appreciated. The HVAC unit and the filter work in tandem in order to provide the space with clean and comfortable air and assists with increasing the lifespan of your HVAC system. Filters keep the coils and equipment free from dirt, dust, pollen… Read more »