Broan HEPA 1000, HEPA 4000, HEPA 3000, HEPA 2000 installation instructions VH0051

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2. TYPICAL INSTALLATIONS (CONT’D)

2.2INSTALLATION FOR HEPA 4000 ONLY (CONT’D) 2.2.2 HEPA 4000 ATTIC INSTALLATION

All 3 types of installation can be used in the attic (Stand Alone, Central Draw Point or Return-Return). The example shown below is a Return-Return installation (connection to a forced air system).

CAUTION

Due to the potential temperature difference between the attic and the rest of the house, all unit ducts must be insulated.

CAUTION

The attic temperature must always be above 0°C (32°F).

A portion of stale air is exhausted to the outside and the rest is drawn to the unit. Outside fresh air is blended with interior air and then filtered. This filtered air is supplied to the return (plenum) of the forced air unit.

To avoid the cross-contamination and achieve highest efficiencies, the forced air system blower must always be ON (or the unit efficiency will be affected).

See figure below.

NOTE: Home with multiple forced air systems should have 1 unit on each system.

VH0051

CAUTION

Do not connect the HEPA 4000 on any forced air system supply duct. Connect it only to the air return duct. Do not install duct or duct connector directly above the forced air unit or not less than 9’10’’ (3 m) of the plenum connection to the forced air unit, as measured along the length of the duct.

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Contents Installation Instructions About this Manual About These Units Table of Contents Table DES Matières Before Starting Typical InstallationsTypical Installations CONT’D Hepa 1000 and HF 1.0 Unit Installations CONT’D RETURN-RETURN Installation Connection to a Forced AIR System Hepa 4000 Restricted Area VH0051 Hepa 2000, HF 2.0, Hepa 3000, HF 3.0 and Hepa Hepa 2000, HF 2.0, Hepa 3000, HF 3.0 and Hepa 4000 Unit VH0043 Front View TOP View DimensionsDimensions CONT’D Install the Unit Install the Unit CONT’D HOW to Hang the Unit CONT’D Stale air exhaust ductwork Stale air ductwork Filtered air ductwork Return side connection cont’d Hepa 2000, HF2.0, Hepa 3000, HF 3.0 and Hepa 4000 Units only Pull back the insulation to expose the flexible duct 457 mm Xmas tree pin Connecting the Drain Hepa 3000 and HF 3.0 Units only NORMAL/REMOTE ControlsControls C12 / CM and C34 / CMR Controls CONT’DControls C12 / CM and C34 / CMR CONT’D VD0088 Is on Normal or Boost Using C34 / CMR Control Maintenance For Hepa 2000 and HF 2.0 only Maintenance CONT’DMaster Reset C12 / CM and C34 / CMR Controls Parts Ordering Chart Problems Solutions Troubleshooting
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