Condensate Drains

• Condensate drains must be installed with a:
• Positive fall
• ‘P” Trap fitted and have an adequate fall
• Tundish that is:
• Accessible
• Visible (sometimes in wall tundish, box with visible panel is used).
• Connected in the ways outlined in AS/NZS 3500.2:2015 Clause 13.21. (refer example below).
• Drain line that is insulated over the first 3m
• Drain trap that contains a transparent section to view flow
• Discharge pipe over a tundish with an air gap of a size at least twice the internal diameter of the discharging pipe.

Condensate Drain Test

• Condensate drains must be tested after the ceiling grid has been installed.

Connections

• Fan coil units in ceilings must be installed with:
• Approved vibration isolation from the structure on which they are mounted.
• Flexible connections between unit and rigid ducting.

Access

• Fan Coil Units (FCU) in ceilings must:
• Have a minimum access panel of 450mm x 450 mm
• Be installed to allow for adequate access unhindered for:
• Routine maintenance
• Removal of filters
• Access to valves, motors, control box.