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Thru-the-Wall Comfort
Heating & Cooling
Installation Guide
Multi-Family Style
Air Handler
This unit is designed designated
to be installed in a CLOSET or
UTILITY ROOM and can also be
WALL MOUNTED.
Read Installation Manual
Prior To Starting The Installation.
All phases of this installation must comply with National,
State and Local codes.
This manual must be left with the homeowner for future reference.
National Comfort Products
A Division of National Refrigeration and Air Conditioning Products, Inc.
539 Dunksferry Road • Bensalem, PA 19020-5908
(800) 523-7138
www.nationalcomfortproducts.com
Go Thru-the-Wall
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Table of Contents
Summary of Contents for NCP NAH524MF L Series
- Page 1 Thru-the-Wall Comfort Heating & Cooling Installation Guide Multi-Family Style Air Handler This unit is designed designated to be installed in a CLOSET or UTILITY ROOM and can also be WALL MOUNTED. Read Installation Manual Prior To Starting The Installation. All phases of this installation must comply with National, State and Local codes.
- Page 2 Installation Guide | Multi-Family Air Handler...
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Page 3: Table Of Contents
Installation Guide | Multi-Family Air Handler Table of Contents Nomenclature ................................page 4 Product Features ..............................page 5 Safety Information ..............................page 6 Unit Installation ............................... page 8 Unit Dimensions ..............................page 10 Clearances ................................page 11 Electric Heater Installation ............................page 12 Unit Data ................................. -
Page 4: Nomenclature
Installation Guide | Multi-Family Air Handler Multi-Family Style Air Handler Nomenclature Note: These air handlers can be configured as a Left hand or Right Hand Return. Example for Left Hand : NAH524MFA-L1, Example for Right Hand : NAH524MFA-R1 NAH = Air Handler 5 = R454B 24 = 2 Ton MF = Multi-Family... -
Page 5: Section 1. Product Features
Installation Guide | Multi-Family Air Handler High Efficiency Multi-Family Fig. 1 Air Handlers 2-2.5 Ton Section 1. Product Features The Multi-Family Air-Handler comes under 28 in. height and is designed for installation in a closet or utility room. The air-handler comes with the option of either a left-hand or right-hand return duct connection. -
Page 6: Section 2. Safety Information
Installation Guide | Multi-Family Air Handler Section 2. Safety Information WARNING This appliance is not intended for use by those (including children) with reduced physical, sensory or mental capabilities, In case of improper installation, there is a potential that the operation of the product could cause personal injury or property damage. -
Page 7: Safety Requirements
Installation Guide | Multi-Family Air Handler 2.1 Safety Requirements WARNING This air handler should be installed in accordance with all local, state, and national building and safety codes, local plumbing or wastewater FIRE OR ELECTRICAL HAZARD codes and other applicable codes. A fire or electrical hazard may result causing property damage, personal injury or loss of life. - Page 8 Ensure the ventilation airflow volume is greater than the corresponding value exemples de telles sources d’inflammation potentielles sont les in the table. If OEM unit other than NCP is used, use greatest airflow volume surfaces chaudes avec une température supérieure à 1292°F (700°C) with respective line set length.”...
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Page 9: Section 3. Unit Installation Fig
Installation Guide | Multi-Family Air Handler Section 3. Unit Installation Fig. 3 After unboxing the air handler and completing the inspection, follow the in- struction step by step as follows: RETURN AIR PANEL • Use metal snipping tool to cut out the square piece from return and sup- ply air side as shown in Figures 2 &... -
Page 10: Wall Mount Installation
Installation Guide | Multi-Family Air Handler CAUTION NAH524MF*-L* NAH530MF*-L* The air handler should never be operated without an air filter. SUPPLY AIR PRUDENCE 24 1/2" 12" 12 5/8" 27 5/8" 2" 8 5/8" 5 1/4" 3 1/4" Le système de traitement de l’air ne doit jamais être utilisé sans filtre HIGH VOLTAGE à... -
Page 11: Unit Dimensions
Installation Guide | Multi-Family Air Handler 3.2 Dimensions Note: Low temperature solder alloys, such as lead or tin alloys, are not acceptable for pipe connections. Alloys used to join refrigerant The overall dimensions are given below in Table containing connections shall have a melting point greater than 427°C (800°F). -
Page 12: Section 4. Electric Heater Installation
Installation Guide | Multi-Family Air Handler Step 3.5.1a: CAUTION Using a liquid soap solution The temperature required for brazing is high enough that can cause oxidation in copper lines. Dry nitrogen should always be supplied through the tubing while brazing the connection. The flow should be continued until the brazed joints have cooled down. -
Page 13: Section 5. Line Power Connections
Installation Guide | Multi-Family Air Handler WARNING CAUTION LIVE ELECTRICAL COMPONENTS! All wiring for this unit must comply with the local and national electrical codes and requirements. Failure to comply with the electrical During Installation, testing, servicing and troubleshooting of this requirements can cause serious property damage. -
Page 14: Troubleshooting Fault Codes
'Communication Fault' state, the sensor is indicating end- of-life. Sensor replacement is necessary for normal operation. The sensor shall only be replaced by NCP approved A2L Gas Sensor (NCP P/N: 142-60- 031). Contact National Comfort Products for replacement sensor. - Page 15 Installation Guide | Multi-Family Air Handler Table 4: Electric Heat Data - 208V Heating Heating Heater Blower Amps. Heater Model Capacity (kW) Amps. (Btuh) CPEHK-03 8,900 2.62 12.6 20.5 CPEHK-05 13,100 3.83 18.41 27.8 CPEHK-07 18,400 5.37 25.82 37.0 CPEHK-10 26,000 7.64 36.73...
- Page 16 Installation Guide | Multi-Family Air Handler Table 7: Electric Heat Airflow and Temperature Rise (208V) Model Blower Speeds ΔT ΔT ΔT ΔT ΔT in. wc. in. wc in. wc. in. wc. in. wc. Orange 12.2 13.2 14.6 16.7 19.9 Black 11.5 12.7 14.0...
- Page 17 Installation Guide | Multi-Family Air Handler Table 8: Electric Heat Airflow and Temperature Rise (230V) Model Blower Speeds ΔT ΔT ΔT ΔT ΔT in. wc. in. wc in. wc. in. wc. in. wc. Orange 15.0 16.2 17.9 20.5 24.4 Black 14.0 15.6 17.2...
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Page 18: Section 10. Wiring Diagrams
Installation Guide | Multi-Family Air Handler Section 10. Wiring Diagrams 10.1 Air Handler Wiring Diagram (No Heat Kit) POWER STATUS LED1 LED2... - Page 19 Installation Guide | Multi-Family Air Handler 10.2 Air Handler Wiring Diagram (3, 5, 7 & 10 kW) POWER STATUS LED1 LED2...
- Page 20 Installation Guide | Multi-Family Air Handler 10.3 Air Handler Wiring Diagram (15 kW) POWER STATUS LED1 LED2...
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Page 21: Section 11. Sequence Of Operations
Installation Guide | Multi-Family Air Handler Section 12. Controls Wiring Connection Section 11. Sequence Of Operations 11.1 Fan Operation 12.1 Heat Pump Systems When the control receives a call from the thermostat to the G terminal only the control will operate the fan in the selected HEAT speed. 11.2 Cooling Operation When the control receives a call from the thermostat for cooling to the Y terminal only or both the Y and G terminals together the blower will start with... -
Page 22: Operational Checkout & Maintenance
The heat 9. Sealed electrical components shall be replaced. transfer surfaces should be cleaned. 10. Intrinsically safe components must be replaced. At all times, NCP maintenance and service guidelines shall be followed. If... -
Page 23: Section 14. Decommissioning/Recovery
Installation Guide | Multi-Family Air Handler Section 14. Decommissioning/Recovery Note: Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice that all refrigerants are recovered safely. -
Page 24: Replacement Parts Guide
Installation Guide | Multi-Family Air Handler Replacement Parts Guide | NAH Air Handler Item Description NAH524MF*-L* NAH524MF*-R* NAH530MF*-L* NAH530MF*-R* Heat Excahnger 142-08-394 142-08-395 142-08-391 142-08-393 TXV+Distributor 142-75-169 142-75-169 142-75-170 142-75-170 Blower Motor 142-70-068 142-70-068 142-70-068 142-70-068 Blower Motor Mount 142-70-108 142-70-108 142-70-108 142-70-108... - Page 25 ALL PARTS. For all parts, for two years from the date of original installation when installed with a certified NCP matched Condensing Unit or Heat Pump. Otherwise for one year from the date of original installation. Customer must register the product within 60 days of purchase.
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Page 26: Warranty
National Comfort reserves the right to request additional documentation. The failure to follow this procedure shall render the warranty void. 7. SHIPPING INSTRUCTIONS A. Parts. All other returned parts must be securely packaged and clearly marked with its corresponding RMA number provided from NCP. - Page 28 National Comfort Products A Division of National Refrigeration and Air Conditioning Products, Inc. 539 Dunksferry Road | Bensalem, PA 19020-5908 (800) 523-7138 www.nationalcomfortproducts.com 14291156 IM NAH Air Handler 1/17/2025...
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