Understand the Ductwork Best Practices for Under-Bench RV SystemsUpdated 3 days ago

Introduction

This article explains the ductwork best practices for Under-Bench RV Inverter Packaged Heat Pump Air Conditioners. 

Ductwork Best Practices

Craft the ducting to distribute the air using trade parts that are not included with the system supply. 

It is recommended to use cardboard pipe for air conditioning, with an aluminum core and external PVC covering. 

The nominal inner diameter should be sized up to 2-3/8 inches (60 mm), while the outer diameter should be sized up to 2-1/2 inches (63.5 mm). 

The tapered hole on the air outlet allows the ventilation ducts to be joined by pressing them together. 

Use either the outlet on the coil side or side outlet to connect the ducts. The side outlet can be used by removing the guard and closing the front holes.

Connect the ventilation pipes by pressing them into the tapered hole on the air outlet. The pipes can be attached to either the coil-side outlet or the side outlet.

A compatible Pioneer air distribution kit is sold online. 

For optimal efficiency, it is advised to:

• Route the air ducts as short and flat as possible. 
• Do not exceed 16 feet (4.9 m) in duct length. 
• Avoid laying the air ducts near any sources of heat. 
• Avoid condensation on the ducting by insulating the pipes with insulation material.