Reznor MAPS - A,B,C Users Manual - Manual (Page 19)

Form O-MAPSIII&IV Cabinets A/B/C, P/N 257004R8, Page 19
c) If the test for acid is negative, remove the suction line filter drier, replace
the liquid line drier, evacuate, and re-charge the system with the recovered
refrigerant.
If the test indicates acid, replace both the liquid line filter drier and the suction
line filter drier and repeat b) and c).
CAUTION: After cleanup is complete, remove the suction line filter
drier. See Hazard Levels, page 3.
d) Verify subcooling and superheat (refer to Step 11).
e) When the system is operating properly, remove the gauges.
Or, IF the oil measured in Step 2 was not significantly less than that
shown in the table on page 14 or the acid test in Step 2 did not indicate
a compressor burnout, continue to the review in Step 13.
•
Step 13 . Review ALL Steps to ensure that nothing was overlooked.
3.7 Thermostatic
Expansion
Valves
Cabinet
Size
RCB/
RDCB/
RECB
RDB/
RDDB/
REDB
Thermostatic Expansion Valve P/N's by
Compressor Circuit
A B C DH (Reheat)
A 060 084 220553 220552 -- 220552
A or B
078 102 220554 220552 -- 220552
090 114 220554 220553 -- 220552
118 142 220555 220553 -- 220552
136 162 220555 220554 -- 220552
B
160 184 220555 220554 220552 220552
186
210
220554 220555 220554
220552
222 220553
200
224
220554 220555 220555
220552
236 220553
C
190
248
234987 220558 N/A
234987
262 234987
216
272
220558 220555
234987
288 234987
298
354
220558 220558
234987
370 234987
410
468
220558 220558 220558
234987
482 234987
Compressor B
Compressor C
Compressor A
Compressor
Dh (Reheat)
All refrigeration circuits have a thermostatic expansion valve. Thermostatic expansion
valves do not have replaceable parts. If a replacement valve is required, it must be
for R410-A refrigerant and must be sized correctly for the application. All refrigerant
service should be performed by a service technician qualified in R410-A refrigerant.
Replacement valve P/N's by Model, size, and circuit are listed in the following tables.
Cabinet
Size
RCC/
RDCC/
RECC
RDC/
RDDC/
REDC
Thermostatic Expansion Valve P/N's
by Compressor Circuit
A B C DH (Reheat)
A 060 084 N/A 220554 N/A 220552
A or B
090 114 N/A 220555 N/A 220552
120 144 220554 220554 N/A 220552
B
160
184
220555 220555 N/A
220552
196 220553
200
236
220554 220556 220554
220553
257 234967
C
190
248
234967 261175 N/A
234987
262 234987
298
354
261175 261175
234987
370 234987
410
468
261175 261175 261175
234987
482 234987
FIGURE 6 - Thermostatic Expansion
Valve