PH
-SERIES
21
FOR VENTED INSTALLTIONS: (For PH -4O, 50, 75, 80, 100 and 125 models only)
WARNING: DO NOT ATTEMPT TO CONNECT ANY HO (HIGH OUTPUT) MODEL TO ANY VENTING.
If adequate ventilation cannot be provided by the methods previously described under the heading "FOR
UNVENTED INSTALLATIONS IN SEMI ENCLOSED APPLICATIONS", an approved chimney or sidewall venting
system must be used.
Only models PH-40, 50, 75, 80, 100 and 125 can be connected to an approved venting
system.
If you have an HO model and cannot provide adequate ventilation to safely operate the unit as per the previous
heading ("FOR UNVENTED INSTALLATIONS IN SEMI ENCLOSED APPLICATIONS"), return unit to your supplier and
purchase the appropriate model for this type of application.
If you do not understand or are unfamiliar with how to vent a gas fired appliance, do not install this product
until you contact the local authorities for clarification or approval.
To connect to an approved chimney (by others) or side wall vent system (Part #800208) remove the exhaust
hood from the end cap by drilling out four (4) retaining rivets and discarding the hood. The exposed tubing is 3"
I.D. and can be connect to an approved venting system by following the instructions on appropriates pages (22-
29) for your particular installation.
If the roof/chimney type installation is selected also adhere to any instructions supplied by the manufacturer of
the system.
