Honeywell 800 Series Manual page 24

HONEYWELL MODEL 700/800 SIGNAL PROCESSOR AND VIEWING HEAD
BURNER FRONT PLATE
1 (25) NPT NIPPLE TOE
700-1 SWIVEL MOUNT
BURNER FRONT PLATE
OR WINDOWBOX
FLANGE
(OPTIONAL)
Mounting Examples
Purge air should be provided via the purge air connection
to reduce conducted heat and to keep the sight pipe and
viewing head lens free of dirt and debris. Refer to "Purge
Air" on page 10 for requirements. For electrical isolation
reasons, the purge air line should be installed using and
insulating material, such as a rubber hose, in between the
purge air line and the viewing head. Note that an
extension pipe may be required to locate the viewing head
further from the burner front plate to avoid high
66-2069EP—08
1/4 (6) NPT PURGE
CONNECTION
Fig. 14. Viewing Head Mounting Example.
1/2 (13) NPTM PIPE
1/4 (6) NPT PURGE
CONNECTION
Fig. 15. Viewing Head Mounting Example.
S70X VIEWING HEAD
S70X VIEWING HEAD
QUICK DISCONNECT
CABLE CONNECTION
temperatures. Additionally, an Ultem replacement
insulating mounting block is available for all models,
which is rated for 320F (160C) continuous service. Also
available are cooling jackets which are used with vortex
coolers. The Honeywell Ultem R-518-13 nipple or R-518-
PT13/R-518-PT13L locking coupler adapter and R-518-
CL13-HTG locking coupler can also be used for heat
insulation reasons. Refer to the Accessories section of this
document for accessory part numbers.
24
QUICK DISCONNECT
CABLE CONNECTION
M34537A
M34538A