Carrier 48/50PG20-28 - Manual (Page 3)

3
Exhaust tube
Rubber
gasket
Cover gasket
(ordering option)
Sensor housing
and electronics
Rubber gasket
Sensor cover
Plug
Sampling tube
Collar
Power
Dirty
Trouble
Alarm
LEDs
Smoke Sensor
Fastener
(2X)
Controller cover
Conduit nuts
( field supplied )
Conduit support plate
Cover gasket
(ordering option)
Conduit couplings
Terminal block cover
Controller housing
and electronics
Power
Trouble
Alarm
LEDs ( field supplied )
Smoke Control Module
C07173
Fig. 2 --- Smoke Detector
SMOKE CONTROL MODULE
RETURN SMOKE SENSOR
A1 B1/A2 C1/B1
PLUG LOCATION
C07174
Fig. 3 --- Return Air Smoke Detector Location
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury and/or death.
Prior to installation of this accessory, make sure all
power is disconnected to the unit and locked out and
tagged.
! WARNING
NOTE: For horizontal applications it is easiest to install the
smoke detector prior to making duct connections.
1. Open the hinged electrical/compressor access door and
secure.
2. Find the 2 plugs located above compressor B1/A2,
remove and discard. Cut holes in the insulation located be-
hind the partition.
3. Remove cover from smoke detector. The screws will
remain captured in the cover.
4. Slide exhaust tube into the sensor. The exhaust tube
should be inserted from the back of the sensor, into the
hole with four slots, and locked into place. (See Fig. 2.)
5. Slide smoke detector into holes in partition with the ter-
minal block to the right. Do not secure at this time.
6. Slide the sampling tube collar over the sampling tube un-
til the tabs lock into the tube. (See Fig. 2.)
7. Slide long sampling tube (P/N RN20ZT060) into left--
hand hole of smoke detector. It might be necessary to tilt
the smoke detector upwards in order to properly align the
sampling tube, making sure that the sampling holes
point DOWN. (See Fig. 4.)
8. Install plug into far end of sampling tube.
9. Remove the unit side panel at the return end of the unit.
Save screws for use later.
CR
S
M
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