Installation manual
AQ4
Horizontal Vent Kit
For Bosch AquaStar Models: GWH 1600 P, GWH 1600 H
For Bosch ProTankless Models: GWH 425 PN, GWH 425 HN*
For Bosch THERM Models: 520 PN, 520 HN
WARNING: If the information in this manual is not followed
exactly, a fire or explosion may result causing property
damage, personal injury or death. Do not store or use
gasoline or other flammable vapor and liquids in the vicinity
of this or any other appliance.
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. Refer
to this manual. For assistance or additional information
consult a qualified installer, service agency or the gas
supplier.
In the Commonwealth of Massachusetts this product
must be installed by a licensed plumber or gas fitter.
Upon completion of the installation, these instructions
should be handed to the user of the appliance for future
reference.
* The GWH 425 HN has been redesigned. This vent kit
is not compatible with the older version (identified by a
white cover). Use the AQ1 horizontal vent kit with the
older version.
Summary of Contents for AQ4
Page 15: ...15 AQ4 Manual Notes ...
