Bosch AQ4 GWH 1600 P - Manual (Page 2)

2 AQ4 Manual
Table of Contents
Table of Contents
1 Introduction ......................................................................... 3
1.1 Parts included ................................................................................ 3
1.2 Warnings ................................................................................ 3
1.3 Preparation ................................................................................ 3
1.4 Requirements for installation in
Massachusetts ................................................................................ 4
2 AQ4 Installation instructions ......................................................................... 5
2.1 Introduction ................................................................................ 5
2.2 Locating power vent hood and
clearances ................................................................................ 5
2.3 Power vent hood ................................................................................ 5
2.4 Power vent motor ................................................................................ 6
2.5 Vent piping ................................................................................ 7
2.6 Linear safety spillage switch ................................................................................ 7
2.7 Flow switch ................................................................................ 8
3 Operation ......................................................................... 9
3.1 First time start up ................................................................................ 9
4 Maintenance ....................................................................... 10
5 Troubleshooting ........................................................................ 10
5.1 Introduction .............................................................................. 10
5.2 Power vent motor runs all the time or
intermittently without water flow .............................................................................. 10
5.3 Pilot will not hold when lit or spark
automatically with hot water flow .............................................................................. 11
5.4 Sparks but pilot will not light
5.5 Pilot goes out during hot water use .............................................................................. 11
5.6 Noise when power vent motor is
running .............................................................................. 11
6 One Year Limited Warranty ....................................................................... 12
7 Wiring diagram ....................................................................... 13
8 Vent hood template ....................................................................... 14