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C. Performance Data
1. KMD-850MAH (air-cooled)
APPROXIMATE ICE
PRODUCTION PER 24 HR.
lbs./day kg./day
APPROXIMATE ELECTRIC
CONSUMPTION watts
APPROXIMATE WATER
CONSUMPTION PER 24 HR.
gal./day m 3 /day
FREEZING CYCLE TIME min.
HARVEST CYCLE TIME min.
HEAD PRESSURE
PSIG kg/cm 2 G
SUCTION PRESSURE
PSIG kg/cm 2 G
AMBIENT TEMP.
(ºF/ºC)
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
276
43
46
47
49
786
753
743
732
291
254
242
187
248
265
270
50/10
357
342
337
332
19
20
21
21
3.2
2.9
2.8
2.5
1510
1523
1528
1535
1.10
0.96
0.92
0.71
17.4
18.6
19.0
19.4
3.0
3.2
3.3
3.4
WATER TEMP. (ºF/ºC)
70/21
743
686
639
625
337
311
290
284
1528
1551
1570
1577
242
178
125
122
0.92
0.67
0.47
0.46
21
2.8
2.4
2.0
2.0
23
25
26
270
300
324
19.0
21.1
22.8
331
47
51
55
57
23.3
3.3
3.6
3.9
4.0
300
330
355
383
53
59
63
70
219
178
114
105
685
629
580
526
90/32
1557
1583
1601
1630
23
26
27
30
2.7
2.5
2.0
2.0
311
285
263
239
0.83
0.68
0.43
0.40
21.1
23.2
24.9
26.9
3.8
4.2
4.4
4.9
TOTAL HEAT OF REJECTION FROM CONDENSER 13,200 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]
Note:
1. Pressure data is recorded at 5 minutes into freezing cycle. The data not in bold should be used for reference only.
2. We reserve the right to make changes in specifications and design without prior notice.
36
2. KMD-850MWH (water-cooled)
APPROXIMATE ICE
PRODUCTION PER 24 HR.
lbs./day kg./day
APPROXIMATE ELECTRIC
CONSUMPTION watts
APPROXIMATE WATER
CONSUMPTION PER 24 HR.
gal./day m min.
min.
3 /day
FREEZING CYCLE TIME
HARVEST CYCLE TIME
HEAD PRESSURE
PSIG kg/cm 2 G
SUCTION PRESSURE
PSIG kg/cm 2 G
AMBIENT TEMP.
(ºF/ºC)
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
233
39
39
39
41
50/10
836
831
830
809
1390
1390
1390
864
939
962
1280
1403
18
18
18
19
3.0
2.8
2.7
2.4
228
229
229
379
377
376
367
3.27
3.55
3.64
4.85
16.0
16.1
16.1
16.4
2.7
2.8
2.8
2.9
WATER TEMP. (ºF/ºC)
70/21
830
822
376
373
815
802
370
364
962
1092
1200
1357
1390
1390
1390
1397
18
19
20
20
2.7
2.4
2.1
2.1
229
231
232
3.64
4.13
4.54
5.14
16.1
16.2
16.3
234
39
40
40
41
16.5
2.8
2.8
2.8
2.9
250
43
46
45
50
90/32
786
759
759
708
1413
1426
1421
1496
1450
1847
1872
2490
20
21
21
23
2.6
2.4
2.0
2.0
237
241
241
357
344
344
321
5.66
6.99
7.09
9.43
16.6
17.0
17.0
17.6
3.0
3.2
3.2
3.5
TOTAL HEAT OF REJECTION FROM CONDENSER
TOTAL HEAT OF REJECTION FROM COMPRESSOR
WATER FLOW FOR CONDENSER
PRESSURE DROP OF COOLING WATER LINE
10,400 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]
1,600 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]
98 gal./h [AT 100ºF (38ºC) / WT 90ºF (32ºC)]
less than 10 PSIG
Note:
1. Pressure data is recorded at 5 minutes into freezing cycle. The data not in bold should be used for reference only.
2. We reserve the right to make changes in specifications and design without prior notice.
37
3. KMD-850MRH (remote air-cooled)
APPROXIMATE ICE
PRODUCTION PER 24 HR.
lbs./day kg./day
APPROXIMATE ELECTRIC
CONSUMPTION watts
APPROXIMATE WATER
CONSUMPTION PER 24 HR.
gal./day m min.
min.
3 /day
FREEZING CYCLE TIME
HARVEST CYCLE TIME
HEAD PRESSURE
PSIG kg/cm 2 G
SUCTION PRESSURE
PSIG kg/cm 2 G
AMBIENT TEMP.
(ºF/ºC)
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
70/21
80/27
90/32
100/38
229
38
40
41
43
833
803
793
782
280
248
238
190
205
219
223
50/10
18
18
19
19
2.9
2.7
2.6
2.4
378
364
360
355
1490
1508
1513
1517
1.06
0.94
0.90
0.72
14.4
15.4
15.7
16.1
2.7
2.8
2.9
3.0
WATER TEMP. (ºF/ºC)
70/21
793
741
360
336
698
685
317
311
1513
1544
1570
1576
238
182
136
134
0.90
0.69
0.52
0.51
19
20
22
22
2.6
2.3
2.0
2.0
223
248
268
15.7
17.4
18.8
274
41
44
47
49
19.3
2.9
3.1
3.3
3.4
321
47
53
55
62
218
183
127
120
738
686
641
589
90/32
1541
1569
1596
1620
21
23
24
26
2.5
2.4
2.0
2.0
250
275
296
335
311
291
267
0.82
0.69
0.48
0.45
17.6
19.3
20.8
22.6
3.3
3.7
3.9
4.4
TOTAL HEAT OF REJECTION FROM CONDENSER
TOTAL HEAT OF REJECTION FROM COMPRESSOR
CONDENSER VOLUME
11,200 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]
1,800 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]
121 CU. IN (URC-9F)
Note:
1. Pressure data is recorded at 5 minutes into freezing cycle. The data not in bold should be used for reference only.
2. We reserve the right to make changes in specifications and design without prior notice.
38
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Table of contents
- 5 I. Specifications
- 5 A. Icemaker
- 5 1. KMD-850MAH (air-cooled)
- 6 2. KMD-850MWH (water-cooled)
- 7 3. KMD-850MRH (remote air-cooled)
- 8 B. Condenser Unit
- 8 1. URC-9F
- 10 II. General Information
- 10 A. Construction
- 10 1a. Air-Cooled Auxiliary Code C-0 and Earlier
- 11 1b. Air-Cooled Auxiliary Code C-1 and Later
- 12 2a. Water-Cooled Auxiliary Code C-0 and Earlier
- 13 2b. Water-Cooled Auxiliary Code C-1 and Later
- 14 3a. Remote Air-Cooled Auxiliary Code C-0 and Earlier
- 15 3b. Remote Air-Cooled Auxiliary Code C-1 and Later
- 16 B. Sequence of Operation
- 16 1. One Minute Fill Cycle
- 16 2. Initial Harvest Cycle
- 16 3. Freeze Cycle
- 16 4. Pump-Out Cycle
- 17 5. Normal Harvest Cycle
- 19 C. Control Board
- 20 1. Control Board Layout
- 21 2. Features
- 21 a) Maximum Water Supply Period – 6 minutes
- 21 b) Harvest Backup Timer and Freeze Timer
- 21 c) High Temperature Safety
- 21 d) Low Water Safety
- 21 e) High Voltage and Low Voltage Cut-outs
- 22 f) LED Lights and Audible Alarm Safeties
- 23 3. Controls and Adjustments
- 23 a) Default Dip Switch Settings
- 23 b) Harvest Timer (S4 dip switch 1 & 2)
- 24 c) Pump-Out Timer (S4 dip switch 3 & 4)
- 24 d) Pump-Out Frequency Control (S4 dip switch 5 & 6)
- 25 e) S4 Dip Switch 7 & 8
- 25 f) Freeze Timer (S4 dip switch 9 & 10)
- 25 g) Float Switch Control (S5 dip switch 1 through 5)
- 25 4. Control Board Check Procedure
- 26 5. Control Board Replacement
- 26 D. Harvest Control – Thermistor
- 26 1. Thermistor Check Procedure
- 26 E. Float Switch
- 26 1. Float Switch Check Procedure
- 28 2. Float Switch Cleaning
- 29 F. Bin Control
- 29 1. Explanation of Operation
- 29 2. Bin Control Check Procedure
- 30 III. Technical Information
- 30 A. Water Circuit and Refrigeration Circuit
- 30 1. Air-Cooled Model
- 31 2. Water-Cooled Model
- 32 3. Remote Air-Cooled Model
- 33 B. Wiring Diagrams
- 33 1a. KMD-850MAH Auxiliary Code C-0 and Earlier
- 33 KMD-850MWH Auxiliary Code C-1 and Earlier
- 34 1b. KMD-850MRH Auxiliary Code C-0 and Earlier
- 35 2. KMD-850MAH and KMD-850MRH Auxiliary Code C-1 and Later
- 35 KMD-850MWH Auxiliary Code C-2 and Later
- 36 C. Performance Data
- 36 1. KMD-850MAH (air-cooled)
- 37 2. KMD-850MWH (water-cooled)
- 38 3. KMD-850MRH (remote air-cooled)
- 39 IV. Service Diagnosis
- 39 A. 10-Minute Diagnostic Procedure
- 41 B. Diagnostic Charts
- 41 1. No Ice Production
- 44 2. Evaporator is Frozen Up
- 45 3. Low Ice Production
- 46 4. Abnormal Ice
- 46 5. Other
- 47 V. Refrigeration Circuit and Component Service Information
- 47 A. Refrigeration Circuit Service Information
- 47 1. Refrigerant Recovery
- 48 2. Brazing
- 48 3. Evacuation and Recharge (R-404A)
- 50 B. Component Service Information
- 50 C. Adjustment of Water Regulating Valve - Water-Cooled Model Only
- 51 VI. Maintenance
- 52 VII. Preparing the Icemaker for Long Storage
- 54 VIII. Disposal