Manitowoc Indigo Series, Technician'S Handbook

Page: 129 / 270

Part Number STH025 02/12 129
Ice Production Check
The amount of ice a machine produces directly relates to
the operating water and air temperatures. This means a
condensing unit with a 70°F (21°C) outdoor ambient
temperature and 50°F (10°C) water produces more ice
than the same model condensing unit with a 90°F
(32°C) outdoor ambient temperature and 70°F (21°C)
water.
1. Determine the ice machine operating conditions:
Air temp entering condenser:____°
Air temp around ice machine:____°
Water temp entering sump trough:____°
2. Refer to the appropriate 24-Hour Ice Production
Chart (starting on page 225). Use the operating
conditions determined in step 1 to find published
24-Hour Ice Production:_____
• Times are in minutes.
Example: 1 min. 15 sec. converts to 1.25 min.
(15 seconds ÷ 60 seconds = .25 minutes)
• Weights are in pounds.
Example: 2 lb. 6 oz. converts to 2.375 lb.
(6 oz. ÷ 16 oz. = .375 lb.)
3. Perform an ice production check using the
formula below.
1. _________
Freeze Time
+ _________
Harvest Time
= _________
Total Cycle
Time
2. 1440 _________
Minutes in
24 Hrs.
÷ _________
Total Cycle
Time
= _________
Cycles per
Day
3. _________
Weight of
One Harvest
× _________
Cycles per
Day
= _________
Actual 24-
Hour
Production