Monthly Archives: October 2026

The steam humidifier helps humidify the indoor air by heating up water to produce steam and then distributing the steam through the ductwork or into the room, solving the problem of a lack of humidity during winter. Sizing and controlling one correctly means matching its output to the actual moisture demand of the building.

A Carel controller alarm or fault code appears on the unit's display and points to a specific issue, ranging from a faulty sensor to a communication fault or a safety trip. Reading the code correctly and working through the likely cause in order is far faster than guessing at a repair.

Damper actuator opening, closing, or maintaining a fixed position problems may arise from the following; power supply problems, signal input problems, or a frozen damper blade. However, testing for the above mentioned problems using a manual override test will easily solve the problem. Following the steps below will help fix most damper actuator problems without replacement.

A VAV box, short for variable air volume box, adjusts the amount of conditioned air delivered to a room to match actual demand, rather than supplying a fixed volume regardless of need. This makes VAV systems significantly more efficient than constant volume alternatives in buildings with varying occupancy and load across different zones.