Specifications

60 InRow™ Direct Expansion Air Conditioners Technical Specifications 990-4617
C. MAIN DISCONNECT SWITCH (ACRD500/ACRP100 series)
1. Unit shall be provided with Thermal-Magnetic circuit breakers with interrupt capacity ratings per
UL489/CSA C22.2/IEC-947.
a. Voltage: 200–240V 50/60Hz /kAIC 50
b. Voltage: 380–415V 50Hz /kAIC 36
c. Voltage: 460–480V 60Hz /kAIC 22
2. Air-cooled: Units shall include a main disconnect switch located on the E-panel in order to
disconnect power input (600 mm models only).
3. A condenser disconnect shall be field supplied.
D. MICROPROCESSOR CONTROLLER
1. Monitoring and Configuration: The master display shall allow monitoring and configuration of the
air conditioning unit through a menu-based control. Functions include status reporting, set-up, and
temperature set points. Four LEDs report the operational status of the connected air conditioning
unit.
2. Controls: The microprocessor controller shall come equipped with control keys to allow the user to
navigate between menus, select items, and input alpha numeric information.
3. Alarms: The microprocessor controller shall activate a visible and audible alarm in the occurrence
of the following events:
a. All series:
1. Cool Fail
2. Air filter clogged
3. Return air sensor fault
4. Supply air sensor fault
5. Rack temperature sensor fault
6. High discharge pressure
7. Low suction pressure
8. Fan fault
9. Water detected (if optional leak detector used)
10. Check condensate management system
11. Air filter run hours violation
12. Group communication fault
13. Supply air high temperature violation
14. Return air high temperature violation
15. Filter DP sensor failure
16. Suction pressure sensor failure
17. Discharge pressure sensor failure
18. Persistent high discharge pressure fault
19. Rack inlet temperature high violation
20. External communication fault
21. Internal communication fault
22. On standby input contact fault
23. A-link isolation relay fault