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18

Unit not cooling. (Temperature

Failed Evaporator Blower.

Check Blower wire connections.

difference between return and

Check blower capacitor.

supply air is less than 10°F).

Replace Evaporator Blower.

Compressor and Condenser Blower
are running. Evaporator Blower does
not run.

Unit not cooling. (Temperature

Low Refrigerant charge.

Check discharge and suction pressure for

difference between return and

Refrigerant leak.

supply air is less than 10°F).

Failed Condenser Blower.

Check Blower wire connections.

Compressor and Evaporator Blower 

Check Blower Capacitor.

are running. Condenser Blower does

Replace Condenser Blower.

not run.

Failed Speed Controller.

Check Speed Controller Sensor.
Replace Speed Controller.

Unit not cooling. (Temperature

Condenser or Evaporator

Clean Coil.

difference between return and

Coil clogged.

supply air is less than 10°F).

Evaporator Blower, Condenser

Loss of Refrigerant.

Locate and repair leak.

Blower and Compressor are running.

Ice on Evaporator Coil.

Clean Evaporator Coil.
Check discharge and suction pressure for 
Refrigerant leak.
Check for any obstruction of Evaporator airflow.
Check and seal all openings.

Excessive condensate 

Eliminate the frequency of door openings.

draining and loss of A/C 
sensible cooling performance.

Unit overcooling.

Failed Thermostat.

Check Thermostat wire connections

.

Evaporator Blower, Condenser

Replace Thermostat.

Blower and Compressor are running.

Failed Relay.

Replace Relay.

Compressor cycling more than

Short circuiting of air

Provide baffle in the enclosure separating A/C

10 cycles per hour.

between A/C discharge 

Outlet and inlet.

and inlet openings.

Excess vibration.

Defective motor in Blower.

Replace motor.

Defective wheel in Blower.

Replace wheel.

Bad Compressor.

Replace Compressor.

.

Trouble-Shooting (con’t)

Problem

Cause

Solution

Compressor and Condenser

Return temperature is

Normal Operation.

Blower do not run when initially

between Thermostat set

energized after 15 minutes.

point and differential
(

75°F to 86°F).

Unit not cooling. (Temperature

Failed Thermostat

Check Thermostat and Relay wire connections.

difference between return and

or Relay.

Replace Thermostat or Relay.

supply air is less than 10°F).

Evaporator Blower is running. 

Low Line Voltage.

Check Nameplate Voltage against supply Voltage.

Compressor and Condenser Blower
do not run. Return temperature is

Failed Compressor.

Check Compressor wire connections.

above set point plus differential (90°F).

Check Compressor overload.
Check Compressor Capacitor.
Replace Compressor.

Содержание K2A6C6HL40LV

Страница 1: ...BE READ AND UNDERSTOOD THOROUGHLY KOOLTRONIC INC 30 Pennington Hopewell Road Pennington NJ 08534 609 466 3400 FAX 609 466 1114 www kooltronic com 900 039 74 1 18 CDR 20053 HAZARDOUS LOCATION SERIES K...

Страница 2: ...oting 17 18 XII Warranty 19 NOTE Wiring Schematics are available on the specific model page of the Kooltronic website I Introduction Kooltronic Hazardous Location Air Conditioners HL Series are design...

Страница 3: ...nimum of 5 minutes prior to operating in order to allow the compressor oil to drain to the compressor sump area CAUTION 3 Before operating this unit all electrical wiring must be checked to assure the...

Страница 4: ...R USE WITH CLASS I DIVISION 1 GROUPS A B C AND D HAZARDOUS LOCATIONS TYPE X PURGE AND CLASS I DIVISION 2 GROUPS A B C AND D TYPE Z PURGE ENCLOSURES WHEN INSTALLED ON AN APPROVED PRESSURIZED ENCLOSURE...

Страница 5: ...of combustible materials or unless all devices within have been de energized WARNING HIGH TEMPERATURE INTERNAL PARTS This Air Conditioner must not be opened unless the area atmosphere is known to be b...

Страница 6: ...urized customer enclosure must be connected to the Purge Pressurized Control System by gas air lines in parallel The Kooltronic HL Series Air Conditioner must be powered from the pressurized customer...

Страница 7: ...ter consists of a heater a heat control thermostat and a heater limiter The heater control thermostat is a bimetal disk with a fixed set point of 60 F When the entering evaporator air temperature rise...

Страница 8: ...the new set point value push the SET key again or wait 10 seconds HOW TO CHANGE A PARAMETER VALUE To change a parameter s value operate as follows 1 Enter the Programming mode by pressing the SET plu...

Страница 9: ...p code 7 0 65535 rEL Software release 0 rSE Real set point 0 onF on off key enabling ES PbC Kind of probe ntc Adr Serial address 1 1 247 HES Differential for energy saving 0 F 54 54 rrd Regulation res...

Страница 10: ...charge ports The cool air discharged should be less than 70 F when the room temperature is between 70 F and 80 F It is normal for the condenser blower to cycle on off during this period 9 Reset the th...

Страница 11: ...to the enclosure The contact closure may be used with their control system having a timer function and output signal The output signal would energize a solenoid valve equipped with a fixed orifice or...

Страница 12: ...r the bottom of the air conditioner 5 The customer must connect the Purge Pressurized System control line to the Swagelok fitting B400 1 OR 1 4 inch NPT The customer has a choice of two connection fit...

Страница 13: ...10 30 261 6 10 30 261 6 1 11 28 1 33 8 5 TYP 1 2 4 70 119 4 68 17 3 23 5 8 23 5 8 23 5 8 4 67 118 5 6 00 152 4 6 00 152 4 6 00 152 4 6 00 152 4 6 00 152 4 4 67 118 5 MOUNTING PLAN Dimensions inches me...

Страница 14: ...TEMPERATURE ALARM TERMINAL BLOCK THERMOSTAT ON OFF SWITCH POWER CORD PRESSURE COMPENSATION TERMINAL BLOCK 3 8 OD DRAIN PURGE PRESSURE FITTING 1 4 NPT 3 8 OD DRAIN 1 2 3 3 4 K_A6C6HL40LV Dimensions inc...

Страница 15: ...ass I Zone 2 Groups IIA IIB plus hydrogen and IIC Hazardous Locations when used with an approved Type Z Purge System on the electrical enclosure Temperature Classification is T 4 275 F 135 C Maintains...

Страница 16: ...ed under warm running water with clean side up If the accumulated dirt is oily washing in a detergent bath is recommended followed by a warm water wash as above After filter removal the exposed conden...

Страница 17: ...ent controller or enclosure see below Removing Air Conditioner from Pressurized Enclosure Conform to the applicable provisions of PROCEDURE FOR PROPER PACKING AND SHIPMENT OF KOOLTRONIC AIR CONDITIONE...

Страница 18: ...ondensate Eliminate the frequency of door openings draining and loss of A C sensible cooling performance Unit overcooling Failed Thermostat Check Thermostat wire connections Evaporator Blower Condense...

Страница 19: ...was received by customer Number of parts to be returned Product description model and serial number Reason for return Action requested Contact name telephone FAX numbers and e mail address Pack unit...

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