40
You can also navigate to the Alarms menu at any time.
Clearing Alarms
Once the alarm has been identified and the cause has been re-
moved (e.g. replaced faulty sensor) the alarm can be cleared
from the display.
To clear an alarm, perform the following:
1. Navigate to the desired alarm.
2. Press the
(Enter) button. ERASE? displays.
3. Press the
(Enter) button. ALARM ERASED displays.
4. Press the
(Menu up/Exit) button to complete the
action and return to the previous menu.
NOTE: If the alarm still exists after clearing it, it is redisplayed
within 5 seconds.
RTU Open Controller (Factory Option)
For details on operating 48FC**04-07 units equipped with the
factory-installed RTU Open controller option, refer to the
Factory-Installed Option RTU Open Multi-Protocol Controller
Controls, Start-Up, Operation and Troubleshooting
manual.
SystemVu™ Controller (Factory Option)
For details on operating 48FC**04-07 units equipped with the
factory-installed SystemVu controller option, refer to the
FC/
GC Series Single Package Rooftop Units with SystemVu Con-
troller Controls, Start-up, Operation and Troubleshooting
manual.
Controller Options
LOW AMBIENT
If the unit comes with Electro-Mechanical (EM) controls, then
no adjustment is necessary.
If the unit comes with SystemVu™ or RTU Open controller
option, then refer to its installation control manual for details
on adjusting “Cooling Lock-Out” setting and configure for the
specific job requirements.
Smoke Detectors
Smoke detectors are available as factory-installed options on
48FC models. Smoke detectors may be specified for supply air
only, for return air without or with economizer, or in combina-
tion of supply air and return air. Return-air smoke detectors are
arranged for vertical return configurations only. All compo-
nents necessary for operation are factory-provided and mount-
ed. The unit is factory-configured for immediate smoke detec-
tor shutdown operation; additional wiring or modifications to
unit terminal board may be necessary to complete the unit and
smoke detector configuration to meet project requirements.
Units equipped with factory-optional return-air smoke detec-
tors require a relocation of the sensor module at unit
installation. See Fig. 52 for the as-shipped location.
Completing Return Air Smoke Sensor Installation
1. Unscrew the two screws holding the Return Air Smoke
Detector assembly. See Fig. 53, Step 1. Save the screws.
2. Turn the assembly 90 degrees and then rotate end to end.
Make sure that the elbow fitting is pointing down. See
Fig. 53, Step 2.
3. Screw the sensor and detector plate into its operating posi-
tion using screws from Step 1. See Fig. 53, Step 3.
4. Connect the flexible tube on the sampling inlet to the sam-
pling tube on the basepan.
Fig. 52 — Return Air Smoke Detector,
Shipping Position
Additional Application Data
Refer to the application data document “Factory Installed
Smoke Detectors for Small and Medium Rooftop Units 2 to 25
Tons” for discussions on additional control features of these
smoke detectors including multiple unit coordination.
Fig. 53 — Completing Installation of Return Air Smoke Sensor
RETURN AIR
SMOKE DETECTOR
(AS SHIPPED)
S
TEP 1
S
TEP 2
S
TEP
3
Содержание 48FC 04
Страница 4: ...4 Fig 2 Unit Dimensional Drawing...
Страница 5: ...5 Fig 2 Unit Dimensional Drawing cont...
Страница 6: ...6 Fig 2 Unit Dimensional Drawing cont...
Страница 22: ...22 Fig 40 Typical Control Wiring Diagram Electro Mechanical with W7212 48FC 04 06 208 230 3 60 Unit Shown...
Страница 23: ...23 Fig 41 Typical Electro Mechanical with W7220 Control Wiring Diagram 48FC 07 208 230 3 60 Unit Shown...
Страница 24: ...24 T Fig 42 Typical 48FC 04 07 Power Wiring Diagram 208 230V Unit Shown...
Страница 45: ......