Page 2 - Table of Contents
2 AQ4 Manual Table of Contents Table of Contents 1 Introduction ........................................................................ 3 1.1 Parts included ............................................................................... 3 1.2 Warnings ..................................................
Page 3 - Introduction; Vent Hood Kit
3 AQ4 Manual 1 Introduction 1.1 Parts included Vent Hood Kit • 1 - 4" vent hood: VH1-4 • 4 - Exterior screws • 1 - 5" to 4" vent reducer pipe • 1 - AQ4FLAPPER back draft acce ssory Vibration Mount Packet • 2 - Vibration mounts with nuts and washers • 2 - Brackets with nuts and washers Fl...
Page 4 - Attention residents of the Commonwealth of; EQUIPMENT VENTING SYSTEM REQUIRED
4 AQ4 Manual 1.4 Requirements for installation in Massachusetts Attention residents of the Commonwealth of Massachusetts: In t h e C o m m o nw ealt h o f M a s sac h u s et t s the following regulation went into effect on 12/30/2005: (a) For all side wall horizontally vented gas fueled equipment in...
Page 5 - AQ4 Installation instructions; Locating power vent hood and; Clearances
5 AQ4 Manual 2 AQ4 Installation instructions 2.1 Introduction Please follow these instr uctions. Failure to follow instructions may result in: · Damage, injur y or death · Improper operation · Loss of warranty If you are unable to perform the tasks required to install the water heater and this acces...
Page 7 - Linear safety spillage switch; Mounting the linear safety spillage switch
7 AQ4 Manual 2.5 Vent piping 1. Install 5" to 4" reducer pipe on top of the water heater and then connect a 4" 90º elbow to begin the horizontal run. Use 4" vent pipe to connect from this elbow to the power vent motor inlet, avoiding elbows wherever possible. The maximum vent length ...
Page 9 - Operation; First time start up; Maintenance
9 AQ4 Manual 3 Operation 3.1 First time start up It is important to verify proper operation of the power vent motor before commissioning the system: 1. Slowly turn on cold water supply and check for any leaks at newly installed flow switch and piping. 2. Plug power vent motor into 120VAC outlet. 3. ...
Page 10 - Troubleshooting
10 AQ4 Manual Troubleshooting 5 Troubleshooting 5.1 Introduction Many of the questions customers ask regarding operation of this unit can be answered by following the troubleshooting steps outlined below. Visit our website a t www.boschho t water.com for mor e detailed troubleshooting. For best resu...
Page 11 - One Year Limited Warranty
11 AQ4 Manual One Year Limited Warranty 6 One Year Limited Warranty Gener al The vent kit is warranted by the Manufacturer (TJERNLUND) through BBT North America. BBT Nor th America (BBTNA) will furnish a replacement part which fails in nor mal use and service within the applicable periods specified ...
Page 12 - Wiring diagram
12 AQ4 Manual - DENOTES LINE VOLTAGE FACTORY WIRINGDENOTES LOW VOLTAGE FACTORY WIRING FLOWSWITCH(N/O) WHITE TRANSFORMER 24VDC RED 115VAC BLACK BLACK BLACK BLACK WHITE WHITE WHITE WHITE GREEN GREEN 115/1/60 PLUG TJERLUND TIMER RELAY POWER VENT MOTOR BLACK YELLOW WIRENUT WIRENUT Wiring Diagram 7 Wirin...
Page 13 - Vent hood mounting template
13 AQ4 Manual NOTE: HARDWARE SHOWN INCLUDED WITH VENT HOOD BUILDING EXTERIOR WASHER (4) SHEET METAL SCREW (4) PILOT HOLE PILOT HOLE CUT HOLE THROUGH WALL TEMPLATE WHEN INSTALLING THE VENT HOOD FOLLOW THE BACK DRAFT FLAPPER INSTRUCTION SHEET IF OUTDOOR TEMPERATURES MAY DROP BELOW FREEZING Fig. 14 Ven...