WhisperKool 5000 Ducting Overview, Use of Ductwork, Diameter Decrease Due To Very Sharp Turns

DUCTING OVERVIEW

Use of Ductwork

Use ductwork to connect the unit to the supply and return outlets in the wine cellar. Use only insulated duct- work to minimize cooling losses, prevent sweating and reduce noise. Use ductwork on the condenser section to redirect or absorb sound, bring in outside air to the unit inlet, and/or exhaust the hot air.

Note: Do not exceed a total of 25’ for each length of ductwork run and a total of 50’ combined for both the supply and return lengths.

Avoid crimping the flexible ducts. This chokes down the inside area and reduces the airflow causing the unit to operate improperly. Be sure all duct work and outer surfaces in contact with the airflow are insulated and have a vapor barrier on the outside. Un-insulated supply and return ducts may cause bare, exposed metal surfaces to sweat, further degrading the insulation and equipment cooling capacity.

DO NOT ALLOW FLEXIBLE DUCTING TO GET SQUEEZED OR ALLOW THE INSIDE

DIAMETER DECREASE DUE TO VERY SHARP TURNS.

General Duct Recommendations

•Provide support for the flexible duct to prevent sags and bends.

•5000tiR Duct Size: 8” Supply and Return

•8000tiR Duct Size: 8” Supply and 10” Return

•Stretch out the duct to make a smoother interior which reduces air resistance.

•Maximum duct length is 25’.

•For 90° bends, use a 90° adjustable elbow.

•No more than two 90° bends on each duct. Sweep 90° bends are recommended rather than sharp 90° bends.

•Generously apply duct sealant to all metal seams to fill in gaps that can leak air. Allow sealant to dry until firm to the touch before applying fiberglass insulation.

•Do not squeeze or reduce the inside diameter of the ducts as this will reduce airflow.

•Use short and straight ductwork where possible.

•Check that all fan blades move freely.

•Keep air paths free of loose foreign objects and debris.

•To provide adequate airflow the fan speed must be set to high when the unit is ducted.

Location of Supply and Return Grilles

Locate the supply and return grilles inside the cellar to create an airflow pattern that maximizes air circulation in the room. Avoid short circulation of the air.

Do not:

•Install through-the-wall return air grilles at floor level, as they will collect dust from the floor.

•Mount the unit lower than 18” from the ceiling.

•Locate the supply or return air grille where it is blocked by bottles, boxes or cases.

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