Carrier 48/50PG20-28 - Manual (Page 4)

4
10. Mount the sampling tube support bracket to the
cross member with two 1/4AB-14 5/8-in. screws
(P/N AL48AM307) as shown in Fig. 5. Insert large snap
bushing (P/N HY93NH085) into hole in bracket.
11. Slide sampling tube into bracket. (See Fig. 4.) Pull the
sampling tube so that the locking collar snaps into the
smoke detector.
12. Attach smoke detector to partition using two, 8-18 3/4-in.
pan head screws (P/N AL56AU168).
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage.
Do not overtighten the screws.
CAUTION
!
13. Replace the unit side panel.
14. Install the snap bushing (P/N HY93NH069) in the center
knockout underneath the control terminal strips located in
the bottom right-hand corner of the control box.
15. Feed wires through snap bushing and connect to appropri-
ate terminals as shown in Fig. 6 for ComfortLinkt units
or Fig. 7 for Electro--Mechanical units.
NOTE: This step is not needed with 48/50PG Humidi--MiZert
units because they have plug 19 harness already installed in the
control box. The harness assembly part number 50TG403507
that came with the accessory is not used. Factory installed PL--19
can be located outside the contol box by its appropriate label. For
Humidi--MiZer smoke detector wiring refer to Fig. 8.
16. Connect PL-19 from the smoke detector control module to
the PL-19 on the control box harness installed in Step 15.
NOTE: On 48PG Humidi--MiZer units the control box harness
has a jumper plug attached. This needs to be disconnected so
PL--19 from the smoke detector can be snaped in.
17. Restore power to the unit.
18. Configure ComfortLink controller as specified in
Con-
figuring the ComfortLink Controller.
19. Perform Sensor and Controller tests. At a minimum, the
Magnet test should be performed to verify smoke detector
wiring.
20. Replace smoke detector cover.
21. Check for alarms. Correct any problems.
INSTALL SUPPLY SENSOR TUBE
WITH HOLES POINTING
UP
INSTALL RETURN SENSOR TUBE
WITH HOLES POINTING
DOWN
BUSHING BRACKET
INSTALL RETURN EXHAUST
TUBE HERE
C07175
Fig. 4 --- Supply and Return Sensor Tube
CR
S
M
K