TABLE OF CONTENTS
I. INTRODUCTION 3
II. GENERAL HRV/ERV TERMINOLOGY & FUNCTION 3
Denitions 3
How Heat & Energy Recovery Ventilators Work 3
Ventilating with HRV/ERVs 4
III. PRECAUTIONS & GUIDELINES 5
Ducting Congurations 6
Locating the Air Exchanger 11
Ducting Materials 11
Connecting the Ducts 11
Vent Hood Locations 12
Locating the Exhaust Air Grilles or Registers 13
Locating the Air Grilles of Diusers 13
Zone Register Terminals (ZRT
®
) 14
Humidity Control 14
IV. INSTALLATION 14
What’s Included 15
Mounting the Unit 16
Drain Connections (HRV Models) 17
Electrical Diagram 18
Conguration Options 18
Unit Wiring 20
Wiring to the Power Source 23
Installing the Digital Multifunction Controller (P/N 611242-FC) 24
Installing the 20/40/60 Minute Timer (P/N 611228) 26
Installing the Speed Control (P/N 611229) 27
ZRT VentZone® Systems 28
V. MEASURING & BALANCING AIRFLOW 30
Measure and Balance 30
Door-Port Balancing 30
In-Duct Balancing 34
ZRT VentZone® Balancing 35
VI. MAINTENANCE 36
General Maintenance 37
Replacement Filters 38
Technical Assistance 38
Troubleshooting 39
VII. WARRANTY 41
What’s Included 41
How to File a Warranty Claim 41