Maintenance; Battery Replacement; Cleaning - Bosch RFSM-A Installation Manual

12 en | Maintenance
5

Maintenance

To maintain the sensor, you may need to replace the batteries or clean the sensor and replace
the optical chamber.
5.1

Battery replacement

The sensor is powered by two 3 VDC, lithium batteries. The required batteries are available
where other batteries are sold.
Battery life is a minimum of 1 year and varies depending on how often the sensor is tested.
When batteries are low, the sensor extinguishes its LED and chirps every 45 seconds until the
batteries are exhausted. Replace both batteries immediately with Panasonic CR123A, Sanyo
CR123A, or Duracell DL123A batteries only. The low battery trouble chirps can be silenced for
24 hours by pushing the test/silence button (Figure 2.1). Always test the sensor after replacing
the batteries.
Caution!
Dispose of used batteries according to the manufacturer's instructions and/or local
!
government authorities. Batteries can explode or cause burns if disassembled, recharged, or
exposed to fire or high temper-ature. Keep away from children.
5.2

Cleaning

Clean the detector cover with a dry or damp cloth as needed to keep it free from dust and
dirt. Clean the detector interior at least once a year and replace the optical chamber. Use only
GE model number 211 optical chambers for replacement.
To clean the detector, perform the following:
Removal
1.
2.
3.
Figure 5.1: Remove the detector cap
4.
2013.09 | 02 | F.01U.280.752
Remove the sensor from the mounting base. See Figure 3.1.
Remove the batteries (Figure 3.2).
Slide a slotted screwdriver in the slot on the sensor cap (Figure 5.1) and gently push
down to pry the cap off.
Squeeze the existing optical chamber where indicated (Figure 5.2) and pull it up and
away from the sensor.
Installation Guide
RADION smoke
Bosch Security Systems, Inc.