Heatcraft Refrigeration Products Comprehensive Heatcraft Refrigeration Troubleshooting Manual for Your Needs
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Installation and Operations Manual

Troubleshooting

The following table shows a number of situations that may occur on the various models.

The most frequent causes and corresponding checks are described:

3.Controllers

Problem

Cause

Checks

 

 

 

 

 

the compressor does not start (signalled by

• compressor delay set defrost post

parameters c0, c1 and c2 and dd

the compressor LED flashing)

• dripping in progress

 

 

 

 

 

 

 

 

 

 

 

 

the temperature is over the set limits but

alarm delay set

parameters Ad, c6, d8

 

 

there is no alarm message and the buzzer, if

 

 

 

 

fitted, does not sound

 

 

 

 

 

 

 

alarm IA is signalled (multifunction input)

the multifunction input generates an alarm

connection of the input and whether this is

without actually being active

when the contact opens

closed in normal operation

 

 

 

 

 

 

 

the alarm connected to the multifunction

alarm delay set or parameter programming

1. if A4=1

 

 

input is not detected

error

2. the status of digital input A7

 

 

 

 

 

 

 

 

 

the defrost is not activated

defrost duration too short (dP)

parameters dP and dI

 

 

 

interval between defrosts dI=0: in this case

 

 

 

 

the defrost is not activated

 

 

 

 

 

 

 

the end defrost temperature is too low or

parameters dt and d/ (defrost probe)

 

the evaporator temperature is too high

 

 

 

the manual defrost is not activated and the

compressor protection times set

parameter d9 (select d9=1)

 

 

defrost LED flashes

 

 

 

 

 

 

 

 

 

the high temperature alarm is shown after a

the alarm delay after defrost is too short or

parameters d8 and AH

 

 

defrost

the alarm threshold is too low

 

 

 

 

 

 

 

 

the display remains frozen even after the

the ambient temperature has not yet

wait or reduce d8

 

 

defrost

reached the set point or alternatively the

 

 

 

 

time d8 has not elapsed

 

 

 

 

 

 

 

 

after modifying a parameter the controller

the instrument has not updated the old

turn the instrument off

and

on again or

continues working with the old values

value or alternatively the parameter setting

alternatively reprogram

the

parameters

 

procedure has not been ended correctly by

correctly

 

 

 

pressing the SET button for 3 s

 

 

 

 

 

 

 

 

the evaporator fan does not start 1.

1. a compressor and fan start delay has been

1. parameter c0

 

 

 

set

 

 

 

 

2. if F0=1 (fan managed by fan controller)

2. parameters F0, F1, Fd, dd and d/

 

 

 

• the evaporator is “hot”: the evaporator

 

 

 

 

temperature can be read by selecting

 

 

 

 

parameter /d;

 

 

 

 

• dripping in progress;

 

 

 

 

• F1 (evaporator fan control set point) too

 

 

 

 

low.

 

 

 

 

• post-dripping delay set

 

 

 

 

3. if F0=0

3. parameters F0, F2, dd and Fd

 

 

• F2=1 and the compressor is off

 

 

 

 

• dripping in progress

 

 

 

 

• post-dripping in progress

 

 

 

 

 

 

 

 

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Contents PRO 3 Top Mount Packaged Refrigeration System Freezer Electric Defrost Systems Performance / Electrical Data Cooler Air Defrost SystemsCooler Electric Defrost Systems For PSC, E for EC motors on evaporator section onlyDimensional Diagrams See reference onTop View Two Systems Recommended Unit Placement For PTT ModelsTop View One System MinControl Factory Default Settings Access RequirementsGeneral Safety Information RiggingPTT Models Standard Installation ProcedureDrain Line On 2 fan modelsCurb placed on roof of walk-in cooler System Standard Maintenance Guidelines Service InformationMaintenance Refrigeration Sequence of OperationStatus Compressor Condenser Evaporator Defrost Model PTT Low Temperature Models EZY Setting =1Refrigeration/Defrost Sequence of Operation If unit shows OFF, depressModel PTT Medium Temperature Models EZY Setting =2 Model PTT High Temperature Models EZY Setting =3Off Defrost is terminated Installation and Removal Programming the Pjezc Carel Electronic ControllerOutput Not Electrical ConnectionsDisplay FittedPreliminary Configurations KeypadsFunctions Available from Keypad Temperature Display Temperature ControlRapid Parameter Set Selction EZY Table of Alarms and SignalsAlarm CodeDescription of the Main Signals and Alarms Data ErrorAccessing the type C parameters Setting the Default ParametersAccessing the type F parameters Modifying the ParametersTroubleshooting Problem Cause ChecksSet 2 Medium Temperature Models M6 w/ 34 F Set Point Device SetupSet 1 Low Temperature Models L6 w/ -10 F Set Point Set 3 High Temperature Models H6 w/ 38 F Set PointSystem Troubleshooting Chart Problem Possible Causes Possible Corrective StepsReplacement Parts by Right source. Right parts. Right nowDependable. Versatile. Courteous Defrost Systems Single Phase WiriInformation.5gTemp Model PTT072M6BE Wiring InformationMedium RevSystem, Typical High Temp Cooler Air Defrost Systems Single PhaseDiagram 3. Wiring Diagram ForWarranty Statement Optional Three-Year Extended Compressor WarrantyHeatcraft Refrigeration Products, LLC West Park Place Blvd., Stone Mountain, GA

H-IM-82C specifications

Heatcraft Refrigeration Products has long been a trusted name in the refrigeration industry, dedicated to providing innovative solutions for commercial cooling needs. One of their standout products is the H-IM-82C unit, a remarkable addition to the line that exemplifies reliability, efficiency, and advanced technology.

The H-IM-82C is engineered with exceptional features that cater to various commercial applications. It utilizes a reliable hermetic compressor specifically designed for durability and energy efficiency. This compressor ensures optimal performance while minimizing power consumption, which can lead to significant savings on energy bills over time. Additionally, the unit boasts a high-performance evaporator coil that augments cooling efficiency by maximizing heat transfer. This design feature allows for quicker cooling times, making it ideal for environments that require precise temperature control, such as food storage and preparation areas.

Another notable characteristic of the H-IM-82C is its robust insulation. The unit employs high-density foam insulation that not only enhances energy efficiency but also prevents condensation and frost build-up. This insulation method helps maintain consistent internal temperatures, which is crucial for preserving the quality of perishable goods.

Safety and monitoring technologies are also integral to the H-IM-82C's design. The unit is equipped with advanced electronic controls that facilitate easy temperature adjustments and greater operational oversight. Users can benefit from real-time monitoring and alerts, helping to ensure compliance with food safety regulations.

Moreover, the H-IM-82C is designed with versatility in mind. It can be installed in a variety of configurations, whether horizontally or vertically, allowing for seamless integration into existing systems. Its compact design is another advantage, saving space while still delivering exceptional cooling performance.

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