M&M
R
EFRIGERATION
I
NC
. A-1
APPENDIX A
Alarm and Failure Data
The Alarm and Failure Data Appendix provides a table which describes all
of the analog and discrete alarms in the system. The Level column
describes the type of alarm or failure and the Default column lists the fac-
tory setpoint for analog alarms.
Analog Alarms
NO. PARAMETER NAME LEVEL DEFAULT COMMENTS
1. High Suction Pressure Fail 70 PSIG
2. High Suction Pressure Alarm 50 PSIG
3. Low Suction Pressure Alarm 28 INHG
4. Low Suction Pressure Fail 29.9 INHG
5. Low Suction Pressure OEM 29.9 INHG
6. High Discharge Pressure OEM 225 PSIG for NH3
275 PSIG for R22
7. High Discharge Pressure Fail 225 PSIG for NH3
275 PSIG for R22
8. High Discharge Pressure Alarm 215 DEGF
9. High Discharge Temperature OEM 212 DEGF
10. High Discharge Temperature Fail 212 DEGF
11. High Discharge Temperature Alarm 200 DEGF
12. High Oil Temperature OEM 180 DEGF
13. High Oil Temperature Fail 155 DEGF
14. High Oil Temperature Alarm 140 DEGF
15. Low Oil Sump Temperature Alarm 85 DEGF
16. Low Oil Sump Temperature Fail 80 DEGF
17. Low Oil Sump Temperature OEM 50 DEGF
18. High Motor Current OEM Based on CT 90 % of CT
19. High Motor Current Fail Based on CT 85 % of CT
20. High Motor Current Alarm Based on CT 85 % of CT
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