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Principles of Operation (con’t)

RESETTING

If it becomes necessary to reset the unit, the factory settings are as follows:

7

PARAMETER

DESCRIPTION

VALUE UNIT

RANGE

MINIMUM

MAXIMUM

SEt

Set Point

75

°F

60

95

Hy

Differential

10

°F

1

45

dP4

Fourth probe display

0

--

--

--

dP3

Third probe display

0

--

--

--

dP2

Evaporator probe display

0

--

--

--

dP1

Room probe display

0

--

--

--

AFH

Differential for temperature alarm recovery

2

°F

1

45

ALL

Minimum temperature alarm

35

°F

-67

120

ALU

Maximum temperature alarm

120

°F

35

302

SHy

Differential for auxiliary relay

5

°F

1

45

SAA

Set point for auxiliary relay

115

°F

-67

302

ACH

Kind of action for auxiliary relay

CL

--

--

--

AC

Anti-short cycle delay

2

min

0

50

odS

Outputs delay at start up

0

min

0

255

P2P

Evaporator probe presence

n

--

--

--

ot

Thermostat probe calibration

0

°F

-21

21

US

Maximum set point

95

°F

75

302

LS

Minimum set point

60

°F

-67

75

Ptb

Map 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 restart with door open alarm

y

--

--

--

odc

Compress status when open door

no

--

--

--

nPS

Number of activation of pressure switch

15

--

0

15

did

Digital input alarm delay

5

min

0

255

i1F

Digital input configuration

EAL

--

--

--

i1P

Digital input polarity

cL

--

--

--

dAO

Delay of temperature alarm at startup 

00:00

h

--

--

ALd

Temperature alarm delay

0

min

0

255

ALc

Temperature alarms configuration

Ab

--

--

--

ArP

Probe selection for auxiliary alarm

P1

--

--

--

dLy

Display temperature alarm

00:00

min.

0

20

Lod

Probe displayed

P1

--

--

--

rES

Resolution

in

--

--

--

CF

Temperature measurement unit

F

--

--

--

CH

Kind of action: heating cooling

cL

--

--

--

COF

Compressor OFF time with faulty probe

4

min

0

255

COn

Compressor ON time with faulty probe

20

min

0

255

O4

Fourth probe calibration

0

°F

-21

21

P4P

Fourth probe presence

n

--

--

--

O3

Third probe calibration

0

°F

-21

21

P3P

Third probe presence

n

--

--

--

OE

Evaporator probe calibration

0

°F

-21

21

Summary of Contents for Guardian K2NA4C3DP24L

Page 1: ...THAT THIS MANUAL 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 85 12 21 CDR 20369 GUARDIAN...

Page 2: ...c model page of the Kooltronic website I Introduction Kooltronic Air Conditioners are designed to provide a cool dehumidified environment for your electronic components There are models to fit virtual...

Page 3: ...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 proper connection...

Page 4: ...incorrect type or amount of refrigerant will adversely affect performance and may damage the unit r Make sure that these parameters are met Failure to do so may result in permanent damage to the unit...

Page 5: ...n discharged to the environment When the Kooltronic Air Conditioner is properly sized it should operate constantly and maintain 75 F to 115 F enclosure temperature depending on the ambient temperature...

Page 6: ...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...

Page 7: ...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...

Page 8: ...ate the air conditioner for approximately ten 10 minutes During this period the evaporator fan should operate continuously and no unusual noise or vibration should be evident The condenser blower is c...

Page 9: ...10 for the location of all mounting holes and cutouts Make sure the cutouts don t interfere with components inside your cabinet Proper alignment of all air inlets and outlets is essential for optimum...

Page 10: ...2 8 42 213 8 1 24 31 5 9 65 245 1 1 00 25 4 2 14 54 4 6 50 165 1 6 90 175 2 4 28 108 7 1 10 27 9 1 03 26 1 8 312 7 9 DIA HOLES 1 2 MOUNTING PLAN Dimensions inches mm are for reference only and are su...

Page 11: ...4 244 8 1 04 26 4 12 00 304 8 1 55 39 4 4 26 108 2 POWER CORD 68 17 0 PROGRAMMABLE THERMOSTAT TEMPERATURE ALARM TERMINAL BLOCK Drawings and Dimensions con t Dimensions inches mm are for reference only...

Page 12: ...able Thermostat Six Foot 1 8m minimum 3 Wire Power Cord Stainless Steel Shell NEMA 4X models UL CUL Listed GuardianX NEMA 4X model offered with these additional features NEMA 4X Rating Maintained UL50...

Page 13: ...d operation under these conditions will cause damage shorten compressor life and void the warranty A Filter and condenser coil service The filter holder must be removed in order to clean the filters A...

Page 14: ...ine 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 dif...

Page 15: ...r 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 Eva...

Page 16: ...eceived 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 in a s...

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