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6

troubleShootInG GuIde

A) Water downstream of dryer

B)  High pressure drop across 

dryer

C)  Fault Alarm

D) Refrigeration system not 

functioning properly

1.  When dryer on/off switch in on or 

"I" position

     

   

 

2.  Refrigerant compressor cycles on 

and off

1.  Residual free moisture remaining in 

downstream pipelines

2.  Air by-pass system is open

3.  Inlet and Outlet connections are  

reversed

4.  Temperatures surrounding air 

lines downstream of dryer have 

dropped below dryers dew point 

rating.

5.  Excessive free moisture (bulk liquid) 

at dryer inlet

6.  Condensate not being automati-

cally drained

   Drain mechanism is clogged or 

inoperative. 

     Drain line is restricted or frozen.

7.  Dryer overloaded resulting in el-

evated dew point.

8.  Refrigeration system not function-

ing  properly resulting in elevated 

dew point.

1.  Inlet air strainer clogged

2.  Excessive air flow

3.  Separator filter clogged.

4.  Freezing of moisture in evaporator  

because of refrigeration system 

improperly functioning.

1.  Dryer overloaded resulting in high 

air outlet temperature.

2.  Refrigeration system not function-

ing properly resulting in high air 

outlet temperature.

3.  Unit functioning normally but ther-

mostatic switch is malfunctioning 

or not securely mounted.

a.  Power failure

b. Line disconnect switch open

c.  Blown fuses, open breaker

d. Faulty wiring, loose terminals

a.  High or low ambient conditions

b. Ambient air filter clogged

c.  Condenser fins clogged

d. Fan motor or fan control switch 

malfunction

e.  Refrigerant leak

f.  Low voltage

Blow out system with dry air

Check valve positions

Check for correct connection

Insulate or heat trace air lines exposed 

to low ambients or dry air to lower 

dew point

Install separator ahead of dryer

Replace drain mechanism if inopera-

tive

Open drain line

Check inlet air temperature and pres-

sure, flow rate (compressor capacity) 

and ambient air temperature

See D below

Clean inlet air strainer

Check flow rate

Replace filter sleeve

See D below

See A 7

See D below

Contact qualified refrigeration repair-

man or manufacturer’s service depart-

ment

Check power to unit

Close disconnect switch

Check for continuity

Have electrician check electrical con-

nections

Check minimum/maximum tempera-

ture ranges

Clean ambient air filter

Clean condenser

Replace fan motor or fan control 

switch

Contact qualified refrigeration repair-

man or manufacturer's service depart-

ment

Check wiring

 

 

SyMPtOM 

POSSIBLE CAuSE(S)              

CORRECtIVE ACtION

Summary of Contents for HANKISON HIT 100

Page 1: ...ectrical codes Standard equipment is supplied with NEMA 1 elec trical enclosures and is not intended for installation in hazardous environments Disconnect power supply to equipment when per forming an...

Page 2: ...at system pressure Drain line should be anchored to prevent whipping 1 4 Electrical connections A Dryer is designed to operate on power supply voltage listed on serial number tag located on the back o...

Page 3: ...Flow capacity in scfm m3 min 180 F 82 C inlet temperature 160 F 71 C inlet pressure dew point 95 F 35 C ambient temperature 50 F 10 C outlet pressure dew point and less than 5 psi 0 35 kgf cm2 pressu...

Page 4: ...off compressed air supply to the dryer and depressurize B Remove top panel C Remove two screws holding side panel and remove side panel by sliding upwards D Disconnect drain tube from bulkhead fittin...

Page 5: ...surize B Remove top panel C Remove two screws holding side panel then remove side panel by sliding upwards D Disconnect drain tube from bulkhead fitting in cabinet base To remove press the plastic col...

Page 6: ...erature 3 Unit functioning normally but ther mostatic switch is malfunctioning or not securely mounted a Power failure b Line disconnect switch open c Blown fuses open breaker d Faulty wiring loose te...

Page 7: ...psig 16 9 12 7 kgf cm2 Air Flow Across Condenser cfm m3 min 60 50 Hz 60 50 Hz 280 235 7 9 6 7 620 515 17 6 14 6 Electrical Data Unit VAC phase Hz 115 1 60 115 1 60 Minimum maximum volts 98 127 Full L...

Page 8: ...gf cm2 Air Flow Across Condenser cfm m3 min 60 50 Hz 60 50 Hz 830 690 23 5 19 5 Electrical Data Unit VAC phase Hz 208 230 1 60 230 1 60 Minimum maximum volts 187 253 Full Load AmpS FLA 11 7 Branch Cir...

Page 9: ...R C S 6 REFRIGERANT COMPRESSOR 4 4 HIGH 4 WIRING SCHEMATIC Models 100 and 125 All Voltages FPS TB HTS FM OLT LT SW M Front of Dryer Outside Right Side of Dryer Inside COMPONENT LOCATIONS RC Models 20...

Page 10: ...dels 20 25 35 Model Weight 20 79 lbs 36 kg 25 80 lbs 36 kg 35 81 lbs 37 kg 718 mm 317 mm 105 mm 1 9 16 40 mm 5 mm 217 mm 1 25 mm 6 mm 257 mm 5 1 16 128 mm 257 mm 216 mm 41 mm 130 mm 105 mm 287 mm 1 1...

Page 11: ...and Weights Models 50 and 75 Model Weight 50 150 lbs 68 kg 75 155 lbs 70 kg 933 mm 117 mm 1 1 2 38 mm 429 mm 5 mm 419 mm 25 mm 21 mm 15 1 4 387 mm 8 7 16 213 mm 425 mm 6 mm 129 mm 39 mm 175 mm 160 mm...

Page 12: ...12 Dimensions and Weights Models 100 and 125 Model Weight 100 187 lbs 85 kg 125 189 lbs 86 kg 1 1...

Page 13: ...0872 3220872 3220872 3220878 3220878 Capacitor run 208 230 1 60 3220878 3220878 3220878 3220878 3220878 Switch fault light w conn 3240331 3240331 3240331 3240597 3240597 Condenser Fan Fan Motor 115 1...

Page 14: ...Capacitor run 230 1 60 3065778 3065778 Capacitor run 220 240 1 50 3065778 3065778 Switch fault light w conn 3240597 3240597 Condenser Fan Fan Motor 3227986 3227986 Fan Blade 3219404 3219404 Refrigerat...

Page 15: ...15 NOTES...

Page 16: ...RESSLY IN LIEU OF THE IMPLIED WARRANTY OF MERCHANTABILITY AND THE IMPLIED WARRAN TY OF FITNESS FOR A PARTICULAR PURPOSE THE MANUFACTURER SHALL NOT BE LIABLE FOR LOSS OR DAMAGE BY REASON OF STRICT LIAB...

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