An Engineered Dedicated Outdoor Air System Solution for ERVs

RenewAire’s HE+DX Coil is an engineered solution comprised of a RenewAire HE Series energy recovery ventilator (ERV) with a DX cooling coil for split or VRF systems. This coil enables HE07 and HE10 ERVs to be converted into dedicated outdoor air systems (DOAS). Doing so provides 100% outdoor air and offers a cost-effective alternative to DOAS units. It also reduces lead times significantly and overcomes installation challenges posed by tight spaces.

Product Overview

The HE+DX Coil engineered solution is designed specifically for RenewAire HE07 and HE10 ERVs. The DX coil has two copper connections, a liquid supply line and a suction line.

The suction header has an option to be equipped with an external equalizer line connection for TXV applications. Refrigerant controller valves are supplied by other vendors per the designer’s specifications.

The DX cooling coil is mounted above a drain pan. The coil requires connection to other equipment, supplied by others. In addition, connection of condensate drain along with any required traps and piping must be supplied by others.

Features:

  • Copper tubing with aluminum fins
  • Coil sweat connections protrude from the housing making installation easier
  • Housing constructed from 90G galvanized steel
  • Drain pans and drain standard
  • R410a, R454b or R32 refrigerants
  • Sized to meet the variable refrigerant flow (VRF) manufacturer’s specification

Key Benefits

Reduce Costs: Our economical and compact HE ERVs paired with the DX coil are a cost-efficient alternative for applications requiring 100% outdoor air.

Decrease Lead Times: Unlike unitary packaged DOAS units, the HE+DX systems have short production lead times allowing for faster delivery and project completions.

Save Space: In addition to be a cost-saving alternative, the HE+DX Coil package is also a space-saving solution. In contrast with bulkier units, these ventilation systems can fit into smaller and tighter spaces.

Applications

This HE+DX Coil system is perfect for light commercial and DOAS applications, including schools, clinics, retails stores, gyms and office buildings. Our coils are designed to be compatible with all major VRF manufacturers and to meet their VRF system specifications.

Installation

The HE+DX Coil is mounted downstream of the unit with access panels on each side for maintenance. Ducts and access panels are not included with the coil system. They are to be provided separately by the HVAC contractor.

Accessories:

  • Conditioned Air Sensor (P/N 131318)The Conditioned Air Sensor is required if using premium controls to provide heating and cooling functions.

How to Order

To order the HE+DX Coil integrated system, please use our CORES product configurator tool. For more information on how to select the coil system, please see our video below.


Selecting and Installing the HE+DX Coil System

How to Order the HE+DX Coil
How to Order the HE+DX Coil

Shirley Hall, RenewAire’s DOAS Product Manager provides a step-by-step tutorial on how to order the HE+DX Coil integrated system using the CORES software on the RenewAire website.

For additional questions, please contact our Technical Sales Support team.

HE+DX Coil Installation
HE+DX Coil Installation

Ryan Marks, RenewAire’s R&D and New Products Manager discusses the installation requirements for the HE+DX Coil including orientation, structural support, controls, and maintenance.

For additional questions, please contact our Technical Sales Support team.