Daikin Chiller Service in Tampa Bay

Which Daikin chiller is in your plant

Ask first which line your Daikin chiller belongs to, because the line decides the compressor, the controls and what a visit should check. Read the name off the nameplate and compare it with the list below, copied from Daikin Applied's chiller products page.

• Magnitude: “Magnitude® Magnetic-Bearing Compressor Centrifugal Chiller 86 to 3,000 Tons” (source).
• Pathfinder: “Pathfinder ® Air-Cooled Screw Compressor Chiller 100 to 565 Tons” (source).
• Pathfinder AWM: “Pathfinder ® AWM Air-Cooled Magnetic Bearing Compressor Chiller 400 to 550 Tons” (source).
• Trailblazer: “Trailblazer® Air-Cooled Scroll Compressor Chiller 30 to 230 Tons” (source).
• Navigator: “Navigator® Water-Cooled Screw Compressor Chiller 100 to 300 Tons” (source).

The same page lists these features under water-cooled chillers: “Water Cooled Chillers Magnetic bearing technology Quiet operation Up to 40% greater efficiency Variable Volume Ratio (VVR) compressor RapidRestore® and Fast Loading® MicroTech® III controls” (source).

A plant that mixes lines is easier to manage with one written scope per machine than with a single scope for everything.

Magnitude: magnetic-bearing centrifugal

See Daikin Applied's Magnitude page for the statements below, which are copied from it.

• Bearings and drives: “Oil-free magnetic bearing technology eliminates mechanical wear points while direct-drive compressors and integral variable-frequency drives maximize efficiency” (source).
• Refrigerants: “Available with low-GWP refrigerants including R-513A, R-515B, and R-1233zd(E), Magnitude delivers reliable, precise cooling across a wide range of operating conditions.” (source).

On a machine like that, the maintenance list is worth a conversation: who looks after the bearing controller, the drive, the power supply and the cooling of the drive electronics, and how is each one checked? Ask what the machine does when power returns, and ask for that behavior to be seen on site.

Pathfinder and Navigator

Air-cooled and water-cooled machines raise different service questions, so ask which one you have before anything else.

See Daikin Applied's Pathfinder page for this statement.

• Header pipes: “Pathfinder's polypropylene header pipes provide several key benefits over steel including low-friction properties to reduce pressure drop, corrosion resistance for outstanding cleanliness” (source).

See its Navigator page for this one.

• Navigator: “Navigator chillers, from 100 to 300 tons, are engineered as a fully VFD-driven platform to meet building applications that aren't suited for traditional chillers.” (source).

Questions to take on the site walk. Air-cooled machine: how often are the coils washed, and is fan condition logged? Water-cooled machine: who treats the condenser water, and is the approach tracked? Drive-equipped machine: how are supply quality and drive cooling checked?

MicroTech controls

See Daikin Applied's Trailblazer page for the first set of manual titles below, and its Magnitude page for the second.

• Trailblazer page manuals: “Chiller MicroTech for LonWorks - IM 968-6 Chiller MicroTech for Modbus - IM 969-7 Chiller MicroTech for BACnet IP - IM 966-6 Chiller MicroTech for BACnet MS-TP - IM 967-6” (source).
• Magnitude page manuals: “Chiller MicroTech II Controls Protocol Information for BACnet - 15100 Chiller MicroTech II Controls for BACnet MS/TP and LonWorks - ED 15062” (source).

A panel and a manual title are worth matching before any trending is planned. Ask whoever services the machine to name the controller they found, read from the panel and not from the paperwork. Then ask how the building automation system reads from it today, what history the controller keeps, and which person looks at that history between failures.

Parts and service channel

Daikin Applied's parts page says: “To mitigate downtime, we have 80 locations (and counting) across North America and Canada to help you take care of your critical parts demand.” (source).

Blume has an account with Daikin Applied.

A statement about a parts network says little about your machine in particular. The useful test is a dry run: pick a component on your chiller, such as a pressure transducer or a drive module, and ask how it would be identified, ordered and tracked, and who would phone you with a date. The answer tells you more than any location count, and it costs nothing to ask today.

Walking the site with a Daikin chiller in mind

Bring the service plan to the plant room and read it against what is there. An air-cooled unit has coils and fans that can be inspected from outside, so ask for a record of their condition, including any corrosion at the fins if the building is near salt water. A water-cooled unit depends on the tower and pumps as much as on the chiller, so ask for their condition to be written beside the chiller's.

Ask for a power-loss drill on paper: what happens when supply drops, what the chiller does when it returns, and who gets called if it stays off. Ask for the answer to be rechecked after any controls change.

Ask for the same short list of readings each visit, written so that a later visit can be set beside an earlier one. Water temperatures in and out, refrigerant pressures, and compressor current compared with the nameplate make a workable starting list. Whatever the list is, a gradual drift in a number is a better prompt for a conversation than a failure.

Refrigerants, repair and replacement

Refrigerant follows the line and the model, so it is a question about your own machine. Find it on the nameplate and write it on the equipment record together with the charge. Then ask what it means for finding leaks, for recovering refrigerant and for a future replacement. For newer refrigerant classes, see the refrigerant transition page.

On repair versus replacement, ask for the paperwork before the opinion: trend history, leak history, controller condition and what a day without cooling would cost your building. Evidence in writing leaves the decision with you. Where the records show steady operation and a controller that still reads, repair is usually the question. Where they show a recurring leak or a controller the building system can no longer talk to, planning the replacement before it fails is the question.

Our capital planning page covers scheduling a chiller as a dated expense. The chiller maintenance page lists what a visit measures, the chiller system guide explains the equipment, and the chiller hub lists the other brands. See the Daikin residential page for residential equipment; it covers residential systems only.

Unit converter