Hussmann KRACK MK36A-354 - User Manual

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MK/MV-Medium Profile Series Unit Coolers (E206993_J)

Part Number: E206993_M

Table of Contents

Questions and Answers

D
daviddonaldsonAug 9, 2025
What to do if fans will not operate in Hussmann Cooling boxes?
- P
  Paul BrownAug 9, 2025
  If the fans in your Hussmann Cooling boxes aren't working, there could be several reasons. First, check the wiring to ensure the unit is properly connected. If the wiring is correct, the motor might be defective and need replacement. Another possibility is a defective defrost timer, termination thermostat, or fan delay switch, in which case you should replace the faulty component. Also, if the room temperature is too high for the fan delay switch, try jumpering the fan delay switch terminals F to B.
A
Amber MontesAug 16, 2025
Why is ice forming on the ceiling of my Hussmann KRACK MK36A-354?
- G
  gregandersonAug 16, 2025
  Ice forming on the ceiling of your Hussmann Cooling boxes can occur for a couple of reasons. One reason is that there are too many defrost cycles happening each day. To address this, observe the frost buildup on the coil and adjust the timer to reduce the number of defrost cycles per day. Another cause could be a defective termination thermostat or defrost timer, which would require replacing the defective component.
N
Natalie BushAug 25, 2025
What to do if there is excessive buildup of frost on the coil in Hussmann Cooling boxes?
- J
  Jennifer MartinAug 25, 2025
  Excessive frost buildup on the coil in your Hussmann Cooling boxes can be due to a few reasons. It could be that there are too few defrost times, in which case you should add more defrost cycles to the timer. Alternatively, the defrost cycle might be too short, so you should extend the defrost time on the timer. Also, high humidity in the cooler can cause this issue; try to limit access to the cooler and avoid propping doors open during stocking.
M
Manuel AllenAug 31, 2025
How to fix accumulation of ice in drain pan of Hussmann KRACK MK36A-354?
- P
  Paul NovakAug 31, 2025
  If you notice ice accumulating in the drain pan of your Hussmann Cooling boxes, it's likely due to one of two issues. First, the drain line might be plugged, so try cleaning the drain line. If the drain line isn't the problem, the heater might be defective and require replacement.

Summary

SAFETY WARNINGS

Field Wiring and Lock Out;Tag Out

Emphasizes proper field wiring, grounding, and LOTO procedures for safety.

ELECTRICAL

Field Wiring and Electrical Data

Details field wiring requirements and provides electrical data for motors and heaters.

ELECTRIC DEFROST SEQUENCE

Normal Refrigeration and Defrost Cycles

Outlines the normal refrigeration cycle and the electric defrost cycle steps.

KE2 EVAP OEM CONTROLLER

Sequence of Operation

Explains the operational sequence of the KE2 Evap OEM controller.

KE2 EVAP DEFROST OPERATION

Defrost Modes and Settings

Covers KE2 Evap OEM defrost modes, timing, and fan states.

CONNECTIVITY AND SMART ACCESS

KE2 Remote Display Interface

Explains how to use the KE2 standard remote display interface for navigation.

POINT TO POINT LAN INTERFACE

PC Setup for LAN Communication

Details the steps for setting up a PC for communication via LAN.

SMART ACCESS VIA WEB BROWSER

Home Page and System Information

Describes the web browser home page and real-time system information.

WEB BROWSER ACCESS

Login and Settings Pages

NETWORK AND SETPOINTS CONFIGURATION

Network Setup and Setpoints Management

START UP PROCEDURES

Pre-Startup Checks and Operation Checkout

PREVENTATIVE MAINTENANCE

Maintenance Schedule and Procedures

TROUBLESHOOTING GUIDE

General Unit Troubleshooting

Offers solutions for common unit operational problems.

KE2 EVAP CONTROLLER TROUBLESHOOTING

Troubleshooting KE2 Controller Alarms

Details troubleshooting steps for KE2 controller alarms and display issues.

REPLACEMENT PARTS LIST

Major Replacement Parts Identification

Summary

SAFETY WARNINGS

Field Wiring and Lock Out;Tag Out

Emphasizes proper field wiring, grounding, and LOTO procedures for safety.

ELECTRICAL

Field Wiring and Electrical Data

Details field wiring requirements and provides electrical data for motors and heaters.

ELECTRIC DEFROST SEQUENCE

Normal Refrigeration and Defrost Cycles

Outlines the normal refrigeration cycle and the electric defrost cycle steps.

KE2 EVAP OEM CONTROLLER

Sequence of Operation

Explains the operational sequence of the KE2 Evap OEM controller.

KE2 EVAP DEFROST OPERATION

Defrost Modes and Settings

Covers KE2 Evap OEM defrost modes, timing, and fan states.

CONNECTIVITY AND SMART ACCESS

KE2 Remote Display Interface

Explains how to use the KE2 standard remote display interface for navigation.

POINT TO POINT LAN INTERFACE

PC Setup for LAN Communication

Details the steps for setting up a PC for communication via LAN.

SMART ACCESS VIA WEB BROWSER

Home Page and System Information

Describes the web browser home page and real-time system information.

WEB BROWSER ACCESS

Login and Settings Pages

NETWORK AND SETPOINTS CONFIGURATION

Network Setup and Setpoints Management

START UP PROCEDURES

Pre-Startup Checks and Operation Checkout

PREVENTATIVE MAINTENANCE

Maintenance Schedule and Procedures

TROUBLESHOOTING GUIDE

General Unit Troubleshooting

Offers solutions for common unit operational problems.

KE2 EVAP CONTROLLER TROUBLESHOOTING

Troubleshooting KE2 Controller Alarms

Details troubleshooting steps for KE2 controller alarms and display issues.

REPLACEMENT PARTS LIST

Major Replacement Parts Identification

Hussmann KRACK MK36A-354 Specifications

General

Brand	Hussmann
Model	KRACK MK36A-354
Category	Cooling boxes
Language	English

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