Reznor MAPS III, Cabinet D RECB Users Manual - Manual (Page 13)

Form O-MAPSIII Cabinet D, P/N 222918R9, Page 13
MAPSIII
Cabinet D
Compressor Cooling Staging
Circuit Tonnage 1 2 3 4 5 6 7 8
360
418
444
484
A 10
C A A+C D C+D A+C+D
C 5
D 15
DH or E (RDB/RDDB/REDB 418) 5
DH or E (RDB/RDDB/REDB 444) 7
DH or E (RDB/RDDB/REDB 484) 10
480
538
564
602
A 10
A D A+D C+D A+C+D
C 15
D 15
DH or E (RDB/RDDB/REDB 538) 5
DH or E (RDB/RDDB/REDB 564) 7
DH or E (RDB/RDDB/REDB 602) 10
600
658
684
722
A 10
B D A+B A+D C+D A+B+D B+C+D A+B+C+D
B 10
C 15
D 15
DH or E (RDB/RDDB/REDB 658) 5
DH or E (RDB/RDDB/REDB 684) 7
DH or E (RDB/RDDB/REDB 722) 10
720
804
842
A 15
B B+C B+C+D A+B+C+D
B 15
C 15
D 15
DH or E (RDB/RDDB/REDB 804) 7
DH or E (RDB/RDDB/REDB 842) 10
Compressor Staging for Cooling (applies to Models RCB, RDB, RDCB, RDDB RECB, REDB)
Compressor
Model
ARI Tonnage
Compressor P/N
208V 230V 460V 575V
ZP57K3E 5 216686 216686 216687 216688
ZP83KCE 7 216689 216689 216690 216691
ZP120KCE 10 216695 216695 216696 216697
ZP182KCE 15 216454 216454 216455 216456
Wiring Harness One each for each
compressor
P/N 223028 P/N 223029 P/N 223030
Crankcase Heater P/N 216402 P/N 216404 P/N 216405
Compressor Model
and P/N by Tonnage
and Voltage
□
Step 4. Install New Filter Driers (Select procedure that applies.)
IF the oil measured in Step 2 was not significantly less than the amount shown
in the table on page 12 or the test for acid in Step 2 did NOT indicate burnout ,
install a new R-410A refrigerant liquid line filter drier. The filter drier must be rated
for no less than 600 psig and be the proper size for the circuit. Because R-410A
refrigerant requires POE oil which absorbs moisture quickly, it is important to
change the filter drier any time the circuit is opened.
It is recommended to use a tubing cutter when cutting out a filter drier as the
desiccant absorbs and holds moisture better when it is cool. Heat from a torch may
cause moisture to leave the filter and be absorbed in the oil. Be careful to keep
dirt, filings, and other contaminants out of the system.
Continue to Step 5.
IF the oil measured in Step 2 was significantly less than shown in the table on
page 12 or the test for acid in Step 2 did indicate compressor burnout, do the
following:
a) Install a liquid line filter drier. If there is acid, install an acid removing filter drier.
Size the acid-removing filter drier at least one capacity size larger than normally
required for the circuit.
b) Install a temporary filter drier in the suction line. When there is acid, a 100%
activated alumina suction filter drier is recommended. The suction line drier
should be sized properly for the circuit and have a service access fitting to