MrCool PHK-H Series Kurzanleitung
Please read this manual carefully before installation and keep it for future reference.
Owner & Installation
Manual
PRODIRECT
Electric Heat Kit
Model: PHK**H
Copyright © 2021 MRCOOL, LLC
Thank you for choosing MRCOOL. Please read this manual carefully before installation and keep it for future reference.
Due to updates and constantly improving performance, the information and instructions within this
manual are subject to change without notice. Please visit www.mrcool.com/documentation to
ensure you have the latest version of this manual.
Version Date: 2-24-21
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Table Of Contents
Preperation Before Install ............................................................. 1
1
Install Electrical Heating Components ......................................... 2
2
Wiring Diagrams .............................................................................. 5
3
CAUTION
1. Ensure that all power supplies are disconnected prior to installing the heat kit.
2. Check heat kit for physical damage. Do not install a damaged heat kit.
3. A means of strain relief and conductor protection must be provided at the supply wire
entrance into cabinet.
4. Only use copper conductors.
5. Installation must follow National Electric Code (NEC) and other applicable codes.
IMPORTANT
You must use a compatible heat kit listed in the chart above. Using an
incorrectly sized heat kit could cause the unit to overheat and/or cause
equipment damage.
Compatible Heat Kits
PHK05H
PHK07H
5kW heat strip
7.5kW heat strip
PHK10H 10kW heat strip
Kit #. Description
18K/24K/30K/36K/42K/48K/60K
18K/24K/30K/36K/42K/48K/60K
24K/30K/36K/42K/48K/60K
Unit Capacity Compatibility
PHK15H 15kW heat strip
PHK20H 20kW heat strip
36K/42K/48K/60K
48K/60K
MRCOOL®Electric Heat Kit
Page 1mrcool.com
Safety Precautions 1
Preperation Before Installation
1.) Remove the upper side panel of the air handler
2.) Remove the air duct sealing plate by removing the 4 screws
3.) Knock out the covered hole on the front panel
®
Page 2 mrcool.com
2
Install Electric Heating Components
1.) Insert the electric heat kit into the air duct installation
hole and align the 4 prongs on the end of the heat kit with the
corresponding 4 holes on the opposite side of the air duct hole
2.) Reinstall screws to fasten the heat kit to air duct
3.) Fasten heat kit electrical board bracket to air handler by installing two screws
Installing Electric Heating Components
Page 3mrcool.com
4.) Position the heat kit electrical board on the bracket and fasten with 4 screws
NOTE: When installing the electrical installation board, pay attention to the
indoor unit power cord and make sure it does not hang or snag on the sharp
edges of the sheet metal heat kit bracket. Please refer to the image below.
Installing Electric Heating Components
Page 4 mrcool.com
5.) Insert signal wire into the main electronic control board
6.) Reinstall the upper side panel. The switches for the heat kit should protrude
through the hole you knocked out of the panel. Then, turn on the power and
check operation.
Page 1 mrcool.com
3
Wiring Diagrams
Page 5mrcool.com
Air Handler Wiring Diagrams for each model with Heat Kit Installed
1.) 53 Model (18K/24K/30K/36K/42K)
2.) 140 Model (48K)
Wiring Diagrams
Page 6 mrcool.com
3.) 160 Model (60K)
Schematic diagrams of electric heating components
1.) 5-10KW Heat Kit
Wiring Diagrams
Page 7mrcool.com
2.) 11-20KW Heat Kit
PRODIRECT
Electric Heat Kit
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