Refrigeration Data; Ice Production; Ice Capacity Test; Compressor Current Draw - Follett Symphony 25HI400A Installation & Service Manual

Refrigeration data

Ice production

Air-cooled icemaker capacity/24 hrs.
Ambient Air Temperature F/C
60 70 80 90 100
F
C 16 21 27 32 38
425 395 360 330 295
50
10 193 180 164 150 134
60 410 380 345 315 285
186 173
16 157 143 130
70 395 365 330 300 270
180 166 150 137 123
21
80 380 350 318 285 255
173 159 145 130 116
27
90 365 335 305 273 243
32 166 152 139 124 111

Ice capacity test

Icemaker production capacity can only be determined by
weighing ice produced in a specific time period.
1. Remove top panel and hopper lid of unit.
2. Weigh and record weight of container used to
catch ice.
3. Run icemaker for at least 15 minutes.
4. Catch ice for 15 or 20 minutes.
5. Weigh harvested ice and record total weight.
6. Subtract weight of container from total weight.
7. Convert fractions of pounds to decimal equivalents
(Ex. 6 lbs 8 oz = 6.5 lbs).
8. Calculate production using following formula:
1440 min. × wt. of ice produced
Total test time in minutes
9. Calculated amount per 24 hours should be checked
against rated capacity for same ambient and water
temperatures in Ice Production Table (above).

Compressor current draw

Air-Cooled Ambient Air Temperature
Fahrenheit 60 F 70 F
Celsius 15.6 C 21.1 C
Locked Rotor Amps 58.8

Gearmotor data

Gearmotor current 2.25A (nominal)
Locked Rotor Amps 14 amps
30
Water-cooled icemaker capacity/24 hrs.
Ambient Air Temperature F/C
F 60 70 80 90
16 21 27 32
C
lbs.
50 430 425 418 390
kg. 10 195 193 190 177
lbs. 415 406
60 392 368
kg. 16 188 184 178 167
lbs. 401 386 365 345
70
kg.
21 182 175 166 156
lbs. 385 365 340 323
80
kg.
27 175 166 154 147
lbs. 90 368 343 315 300
kg. 167
32 156 143 136
production capacity/
=
24 hr. period
80 F 90 F
26.7 C 32.2 C

Refrigeration system

Important: All service on refrigeration system must
be performed in accordance with all federal, state and
local laws that pertain to the use of refrigerants. It is
the responsibility of the technician to ensure that these
100
requirements are met.
38
350 lbs.
159 kg.
334 lbs.
• Recharging of unit at other than factory specifications will
152 kg.
318 lbs.
void icemaker warranty
144 kg.
304 lbs.
Icemaker charge specifications
138 kg.
290 lbs.
Model
132 kg.
25/50CI400A, 25/50HI400A
25/50CI400W

Refrigerant replacement requirements

1. Non-contaminated refrigerant removed from any
Follett refrigeration system can be recycled and
returned to the same system after completing
repairs. Recycled refrigerant must be stored in a
clean, approved storage container. If additional
refrigerant is required, virgin or reclaimed
refrigerant that meets ARI standard 700-88 must be
used.
2. In the event of system contamination (for example,
a compressor burn out, refrigerant leak, presence
of non-condensibles or moisture), the system must
be repaired, evacuated and recharged using virgin
or reclaimed refrigerant that meets ARI standard
700-88.
3. Follett Corporation does not approve of recovered
refrigerants. Improper refrigeration servicing
procedures will void the factory warranty.

Evacuation

Evacuate the system to a level of 500 microns. When
100 F
the 500 micron level is reached, close valves and shut
37.8 C
down the vacuum pump. Allow the system to sit for
approximately 20 minutes. During this period the system
pressure should not rise. If the system pressure rises
and stabilizes there is moisture in the system and further
evacuation is needed. If the pressure continues to rise
check the system for leaks.

Ambients

Air Temperature
Fahrenheit
Celsius
Water Temperature
Fahrenheit
Celsius
1 - Ambient air temperature is measured at the air-cooled condenser coil inlet.
2 - Ambient water temperature is measured in the icemaker float reservoir.
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
CAUTION
Charge
20 oz
9 oz
Minimum
1
50 F
10 C
Minimum
2
40 F
4 C
Refrigerant
Type
R404A
R404A
Maximum
100 F
38 C
Maximum
90 F
32 C