Troubleshooting - MasterCool ADA51 Installation & Operation Manual

WEIGHT (lbs)
MODELS
DRY
51 Series 177
5112 Series 190
71 Series 213
7112 Series 233
*Includes motor weight
MODELS H.P MOTOR PN
1/3 110445
1/2 110447
1/2 110475
51 & 5112
3/4 110449
Series
3/4 110480
1/2 110447
1/2 110475
71 & 7112
3/4 110449
Series
3/4 110480
1 110471
1 110458
* Amperage shown is from National Electrical Code for high speed.
PROBLEM
Failure to start or no air delivery
Inadequate air delivery with cooler running
Water draining onto roof
Musty or unpleasant odor
Motor cycles on and off
Noisy
Inadequate cooling
Excessive humidity in house
110498-2
GENERAL SPECIFICATIONS
CABINET DIMENSIONS (in.)
OPERATING HEIGHT
227 28
257 28
263 34-5/8
300 34-5/8
MOTOR SPECIFICATIONS
SPEED VOLTS *AMPS
2 115 7.2
2 115 9.8
2 230 4.9
2 115 13.8
2 230 16.9
2 115 9.8
2 230 4.9
2 115 13.8
2 230 6.9
2 115 16
2 230 8
TROUBLESHOOTING GUIDE
POSSIBLE CAUSE
1. No electrical power to unit
• Blown Fuse or Tripped Circuit Breaker
• Electrical cord damage
2. Belt too loose or too tight
3. Motor overheated
• Belt too tight
• Blower bearings dry
• Motor pulley diameter too large
4. Motor locked
1. Insuffi cient air exhaust
2. Belt too loose
3. Pads plugged/dirty
4. Motor underloaded
1. Float arm not adjusted properly
2. Overfl ow assembly leaking
1. Stale or stagnate water in cooler
1. Low voltage
2. Excessive belt tension
3. Blower shaft and tight or locked
4. Bearings dry
5. Motor pulley diameter too large ,
causing motor overload
1. Bearings dry
2. Wheel rubbing blower housing
3. Loose parts
1. Inadequate exhaust in house
2. Pads not wet
• Pads clogged
• Distribution tube holes clogged
• Pump not working properly
1. Insuffi cent air exhaust
WEIGHT DEPTH
42 45
42 49
42 48
42 52
MOTOR PULLEY P/N
WEIGHT (LBS)
17 110279-002
18 110279-004
15 110279-004
22 110279-004
21 110279-004
18 110279-002
15
110279-002
22 110279-004
21 110279-004
29 110279-003
29 110279-003
1. Check Power
• Replace fuse or reset breaker
• Replace Cord
2. Adjust belt tension
3. Determine cause of overheating
• Adjust pulley tension
• Oil blower bearings
• Adjust pulley to correct diameter
4. Replace motor
1. Open doors or widows to increase air fl ow
2. Adjust belt tension or replace if needed
3. Clean pads
4. Adjust pulley
1. Adjust fl oat
2. Tighten nut and overfl ow pipe
1. Drain pan and clean pads
1. Check voltage
2. Adjust belt tension
3. Unplug unit and oil or replace bearings
4. Oil bearings
5. Adjust pulley so full load ampere
rating of motor is not exceeded.
1. Oil bearings
2. Unplug unit, inspect and realign
3. Tighten loose parts
1. Open windows or doors to increase air fl ow
2. Check water distribution system
• Clean pads
• Clean tube holes
• Unplug and replace or clean pump
1. Open doors or windows
7
DUCT OPENING (in.)
WIDTH HEIGHT
17-3/4 17-3/4
17-3/4 17-3/4
19-3/8 19-3/4
19-3/4 19-3/4
MODEL DRIVE BELT P/N
110208 (4L-520)
ADA51 &
ADA5112 110229 (4L-530) -3/4 HP
ASA51 &
110212 (4L-570)
ASA5112
AUA51 &
110222 (4L-510)
AUA5112
ADA71 &
110230 (4L-640)
ADA7112
ASA71 &
110213 (4L-670)
ASA7112
AUA71 &
110213 (4L-670)
AUA7112
REMEDY