R248UL Series Installation Guide
- 3 -
9. Upon completion of the wiring set power disconnect circuit breaker to RESET (ON) position
(Fig. 1d, pg. 3)
.
10. Green power LEDs on faceplate will illuminate when power is present. When an output is in a trouble
condition (blown fuse or tripped PTC), the corresponding LED will not be illuminated
(Fig. 1, pg. 3)
.
a.
Blown fuse (R248UL) - Set power disconnect circuit breaker on back of unit to the OFF position
(Fig. 1d, pg. 3).
Remove front faceplate to access fuses. Replace with fuses rated @ 3.5A/250VA
(Altronix model #
Fuse1
).
b. Tripped PTC (R248ULCB) - To reset PTC, set power disconnect circuit breaker on back of unit to the
OFF position. After approximately 30 secs. set power disconnect circuit breaker to the ON (RESET)
position
(Fig. 1d, pg. 3)
.
11. Illuminated power disconnect circuit breaker with manual reset:
OFF position - Switch not illuminated. Outputs not powered.
RESET (ON) position - Circuit breaker illuminated. Outputs powered.
Circuit breaker tripped - Circuit breaker is not illuminated. Power LEDs on faceplate are not illuminated.
Outputs not powered.
To reset circuit breaker set power disconnect circuit breaker to RESET (ON) position
(Fig. 1d, pg. 3)
.
Note:
Do not exceed units electrical load ratings as indicated in reference chart
(pg. 2).
Do not place mechanical load on unit. Data racks should always be properly ventilated.
Unit is designed optimally for normal data room office installations.
CAUTION:
Equipment to be installed / serviced by authorized / trained personnel only.
Shut branch circuit power before installing / servicing equipment.
WARNING:
To reduce the risk of fire or electric shock, do not expose the unit to rain or moisture.
This installation should be made by qualified service personnel and should conform to
the National Electrical Code and all local codes.
XFMR
S P
N
PTC1
Used
on PTC
Models
Removable
Terminal
Block
Strain Relief
Line Cord
Illuminated
Power Disconnect
Circuit Breaker
with manual reset
Fuse
Green Wire
Earth GND
S P N S P N
24VAC Output
(Factory Set) 28VAC Output
28VAC (Black)
24VAC (Yellow)
COM (Brown)
28VAC (Black)
24VAC (Yellow)
COM (Brown)
AC Power
LEDs
AC Power
LEDs
Fig. 1
Fig. 1d
Fig. 1c
Fig. 1b
Fig. 1a
Fig. 1e
