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EHKMC
Auxillary Electrical Heater for Air Handlers
Auxiliary Electrical Heater
NOTES: Read the entire instruction manual before starting the
installation. Images are for illustration purposes only. Actual
models may differ slightly.
Installation Instructions
TABLE OF CONTENTS
SAFETY CONSIDERATIONS ....................................................... 2
ACCESSORIES ............................................................................... 5
DIMENSIONS ................................................................................. 6
INSTALLATION REQUIREMENTS ............................................. 7
INSTALLATION PREPARATION ................................................ 7
ELECTRICAL SPECIFICATIONS................................................. 9
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Table of Contents
Related Manuals for Carrier EHKMC Series
Summary of Contents for Carrier EHKMC Series
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Page 1: Table Of Contents
EHKMC Auxillary Electrical Heater for Air Handlers Installation Instructions TABLE OF CONTENTS SAFETY CONSIDERATIONS ............2 ACCESSORIES ................5 DIMENSIONS ................. 6 INSTALLATION REQUIREMENTS ..........7 INSTALLATION PREPARATION ..........7 ELECTRICAL SPECIFICATIONS..........9 ELECTRIC AUXILIARY HEATING WIRING DIAGRAMS..10 Auxiliary Electrical Heater NOTES: Read the entire instruction manual before starting the installation. -
Page 2: Safety Considerations
EHKMC: Installation Instructions SAFETY CONSIDERATIONS CAUTION Installing, starting up, and servicing air-conditioning equipment can be hazardous due to system pressures, electrical components, and equipment location (roofs, elevated structures, etc.). EQUIPMENT DAMAGE HAZARD Only trained, qualified installers and service mechanics should install, Failure to follow this caution may result in equipment damage or start- up, and service this equipment. - Page 3 EHKMC: Installation Instructions NOTE: The air conditioner’s circuit board (PCB) is designed with a fuse to provide overcurrent protection. The specifications of WARNING the fuse are printed on the circuit board, for example: T3.15AL/250VAC, T5AL/250VAC, T3.15A/250VAC, T5A/250VAC, T20A/250VAC, T30A/250VAC,etc. ELECTRICAL WARNING The product must be properly grounded at the time of installation, NOTE: Only a blast-proof ceramic fuse can be used.
- Page 4 EHKMC: Installation Instructions Table 1 — Symbols displayed on the indoor unit or outdoor unit WARNING This symbol shows that this appliance used a flammable refrigerant. If FOR FLAMMABLE REFRIGERANTS the refrigerant is leaked WARNING Do not use means to accelerate the defrosting process or to clean, and exposed to an external other than those recommended by the manufacturer.
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Page 5: Accessories
EHKMC: Installation Instructions ACCESSORIES The system is shipped with the following accessories. Use all of the installation parts and accessories to install the system. Improper installation may result in water leakage, electrical shock and fire, or cause the equipment to fail. Keep the installation manual in a safe place and do not discard any other accessories until the installation has been completed. -
Page 6: Dimensions
EHKMC: Installation Instructions DIMENSIONS Table 4 — Dimensions 10KW 15KW 20KW 25KW SYSTEM SIZE (208/230 V) (208/230 V) (208/230 V) (208/230 V) (208/230 V) (208/230 V) inch 8.03 8.03 8.03 8.03 8.03 8.03 Height (H) inch 21.06 21.06 21.06 21.06 21.06 21.06 Width (W) -
Page 7: Installation Requirements
EHKMC: Installation Instructions INSTALLATION REQUIREMENTS NOTE: Installation of the Auxiliary Electric Heat Module should be completed before installing the discharge ductwork to insure proper alignment of the inside support brackets. Before installation, check the list of electric auxiliary heat modules and physical objects. After transportation, check whether the electric heat module is damaged. - Page 8 EHKMC: Installation Instructions Step 3 Step 5 Disconnect the Connecting terminal, remove the Fix the screws and Connect Connecting terminals of screws and then remove the auxiliary heater auxiliary heater cover. Fix the screws Remove the screws Disconnect connecting Connect terminal connecting terminals...
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Page 9: Electrical Specifications
EHKMC: Installation Instructions ELECTRICAL SPECIFICATIONS NOTE: Electric auxiliary heating wiring diagram packed with the accessories. If the branch circuit wire length exceeds 100ft, consult the local code to determine maximum wire length. Use a 2% voltage drop. Table 5 — Electrical Specifications NUMBER OF POWER CORD NUMBER OF POWER CORD SPECIFICATIONS... -
Page 10: Electric Auxiliary Heating Wiring Diagrams
EHKMC: Installation Instructions ELECTRIC AUXILIARY HEATING WIRING DIAGRAMS Power to Indoor Unit CN11 CN11 CN11 CN11 Fig. 1 —Power A Wiring Connections (Power for Indoor Unit) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. - Page 11 EHKMC: Installation Instructions TO INDOOR UNIT INTERFACE BOARD CN12 POWER A refer to Figure 1 Fig. 2 —5kW Heat Kit * NOTE: For POWER A, refer to Figure 1. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 12 EHKMC: Installation Instructions TO INDOOR UNIT INTERFACE BOARD CN12 POWER A refer to Figure 1 Fig. 3 —8kW/10kW Heat Kit * NOTE: For POWER A, refer to Figure 1. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 13 EHKMC: Installation Instructions TO INDOOR UNIT INTERFACE BOARD CN12 POWER A refer to Figure 1 Fig. 4 —15kW Heat Kit * NOTE: For POWER A, refer to Figure 1. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 14 EHKMC: Installation Instructions TO INDOOR UNIT INTERFACE BOARD CN12 POWER A refer to Figure 1 Fig. 5 —20kW Heat Kit * NOTE: For POWER A, refer to Figure 1. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 15 EHKMC: Installation Instructions 25KWHEATKIT :thermal l ink :thermal cut-out, self-resetting heater 5 RELAY5 BLACK blue black black heater 4 RELAY4 BLACK BLACK blue black heater 3 RELAY3 BLACK BLACK black BLACK RELAY1 heater 1 Aux-Hea t black controlsignal 24V 〜 blue BLACK RELAY2...
- Page 16 EHKMC: Installation Instructions © 2024 Carrier. All rights reserved. Edition Date: 10/24 Catalog No: EHKMC-01SI Replaces: New Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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