Honeywell FireLite BEAM355 Installation And Maintenance Instructions Manual page 7

fiGuRE 10. SwiTch locATionS
STYLE 7 ISOLATOR SHUNTS
(SHOWN DISABLED)
fiGuRE 11. AliGnMEnT ADjuSTMEnT locATionS
ALIGNMENT
POSITION
INDICATOR
OPTICS
LOCK-DOWN
SCREWS
VERTICAL
ADJUSTMENT
fiGuRE 12. coARSE AliGnMEnT PRocEDuRE
F300-29-00
ALIGNMENT
SENSITIVITY
TEST
RESET
C0263-00
ALIGNMENT MIRROR
ALIGNMENT GUNSIGHT
DIGITAL SIGNAL
STRENGTH
READOUT
HORIZONTAL
ADJUSTMENT
C0264-00
EYE
REFLECTOR
C0265-00
fiGuRE 13. houSinG ScREw locATionS
SCREW LOCATIONS
ShoRT ciRcuiT iSolATion
The detector includes an on-board circuit isolator that allows for NFPA72 style
7 operation. In cases where style 7 operation is not desired the isolator can be
disabled using the two shunts on the circuit board. See Figure 10 for jumper
locations. When the jumpers are present the isolator is disabled. This is the
default state.
SEnSiTiviTy SElEcTion
The detector has six sensitivity selections. Each of these selections is only
acceptable over a specific distance separation between the detector and the
reflector per UL268. The chart below is used to determine which selections are
acceptable for your installed distance. The sensitivity of the detector can be
set only when the housing is removed and the detector is not in the fine ad-
justment step of the alignment mode, indicated by the illumination of the dual
digital display. To set the sensitivity depress the sensitivity button one time.
See Figure 10. Once the switch is pressed the digital display will illuminate
and read the current sensitivity setting in percent obscuration. To change the
sensitivity continue to depress the sensitivity switch until the desired setting
is achieved. The digital display will turn off automatically if no further switch
presses occur.
Sensitivity %
Setting Obscuration
Level 1 25
Level 2 30
Level 3 40
Level 4 50
Acclimate 30 to 50
Level 1
Acclimate 40 to 50
Level 2
In addition to the four standard sensitivity selections the detector has two Ac-
climate settings. When either of these settings is chosen the detector will au-
tomatically adjust its sensitivity using advanced software algorithms to select
the optimum sensitivity for the environment. The sensitivity will be continu-
ously adjusted within the ranges specified in the chart above.
SEnSiTiviTy
Total obscuration can be converted to percent per foot, assuming uniform
smoke density for the entire length of the beam. The charts below converts
total obscuration to percent per foot for all acceptable sensitivity settings.
7
RESET SWITCH
Display Acceptable Acceptable
Reading Distance Distance
Between Between
Detector Detector
and and
Reflector Reflector
(Feet) (meters)
25 16.4 to 120 5.0 to 36.6
30 25 to 150 7.6 to 45.7
40 60 to 220 18.3 to 67
50 80 to 328 24.4 to 100
A1 80 to 150 24.4 to 45.7
A2 80 to 220 24.4 to 67
I56-2425-007R
C0266-00