7
1.800.627.4499
GR90, EV90, EV90P
ERV
9
1.2.1 Purpose of an ERV System .........................................................................................................9
1.2.2 When Should You Use Your ERV ..................................................................................................9
1.2.3 Using an ERV with Air-Conditioning ............................................................................................9
1.2.4 Controlling Excess Humidity During Cold Weather .......................................................................9
2.0 UNIT PLACEMENT
9
2.1 BEFORE YOU BEGIN .............................................................................................9
2.2 LOCATION OF THE UNIT .....................................................................................10
2.3 DUCT SIZES AND INSULATION ............................................................................10
2.3.1 Duct Sizes ............................................................................................................................... 10
2.4 DUCTWORK APPLICATIONS ................................................................................11
13
3.2 INSTALLING OUTSIDE AIR AND EXHAUST AIR DUCTS ..........................................14
3.3 INSIDE DUCTWORK SYSTEM (FOR WALL MOUNTED UNITS ONLY) ........................14
3.4 INSTALLING RETURN AIR DUCTS ........................................................................14
3.5 CONTROLS ........................................................................................................15
3.5.1 Installing Controls .................................................................................................................... 15
16
16
4.2.1 Airflow .................................................................................................................................... 16
4.2.2 Use Static Taps to Measure Airflow Rates ................................................................................ 16
4.2.3 Use Damper to Balance Airflow to Desired Rates ...................................................................... 16
4.3 MEASURING AIRFLOW .......................................................................................17
4.4 MEASURING CROSS CORE STATIC PRESSURE ....................................................17
18
5.1 TO CLEAN THE ENERGY EXCHANGE ELEMENT ....................................................18
5.2 INSPECT AND CHANGE THE FILTERS REGULARLY ................................................18
5.3 MOTOR MAINTENANCE ......................................................................................19
5.4 GENERAL CLEANING AND INSPECTION ...............................................................19
5.5 SERVICE PARTS .................................................................................................19
19
TABLE OF CONTENTS