Sterling VS - Manual (Page 27)

27
OSHA Fan Guard/Louver Cone Diffuser Installation Detail
The fi gures below show how both the OSHA Fan Guard
and the Louver Cone Diffuser are installed on the
Vertical Steam and Hot Water Unit Heater. Figures 28
and 29 detail how the louver cone diffuser and OSHA
guard are attached to the unit. Figures 30 and 31 show
full views of the vertical steam and hot water unit with a
Louver Cone Diffuser and OSHA Fan Guard attached.
Do not mount either the Louver
Cone Diffuser or OSHA Fan Guard while unit is in
operation or severe personal injury may occur.
Disconnect all power supplies to the unit before
installing the Louver Cone Diffuser or OSHA Fan
Guard.
Figure 29 – OSHA Fan Guard Figure 28 – Louver Cone Diffuser
Figure 31 – Vertical Unit with OSHA Fan Guard Figure 30 – Vertical Unit with Louver Cone Diffuser
NOTICE: To meet ETL and OSHA requirements, units
mounted below 8 feet (2.4m) must be equipped
with an OSHA fan guard. Vertical unit heaters can
support either an OSHA fan guard or the Louvered
Cone Diffuser - both items cannot be installed on the
same unit.
The same screws and washers are provided with both
the OSHA fan guard and Louver Cone Diffuser. The
screws and washers are used in conjunction with the
Nutserts to support the wire guard or diffuser to the
orifi ce panel (bottom of vertical unit).