LENNOX CK40HT Horizontal Cased Quantum Coil
FEATURES
APPLICATIONS
- 1.5 to 5 ton nominal sizes
- Lennox designed horizontal indoor coils can easily be installed with most Lennox horizontal furnaces
- Factory installed R-410A check/expansion valve NOTE – Coils can be field converted for use with R-454B refrigerant.
COIL CONSTRUCTION
Quantum™ Coil
- Lennox designed and fabricated coil
- Aluminum tubing, hairpins, distributor and header tubes
- Copper refrigerant sweat connections on both liquid and suction lines for easy brazing
- Ripple-edged aluminum fins
- Lanced fins provide maximum exposure of fin surface to air stream
- Helical grooved tubing provides superior heat transfer
- Twin coil construction assembled in an “A” configuration for large surface area
- High pressure testing insures leak-proof construction
Refrigerant Line Connections
- Copper refrigerant sweat connections on both liquid and suction lines for easy brazing
- Lines extend outside of the cabinet for ease of connection
- See dimension drawings for locations
Anti-Microbial Drain Pan
- Non-corrosive, UV-resistant polymer drain pan with dual FPT drain connections
- Anti-Microbial additive resists growth of mold and mildew on drain pan which improves indoor air quality and reduces drain line blockage
R-410A Check and Expansion Valve
- For use with R-410A systems
- Wide range valve with Chatleff style fitting
- Factory installed on all models
R-454B REFRIGERANT CONVERSION
Additional Components are required for conversion to R-454B Refrigerant:
- Refrigerant Detection System (RDS) Coil Sensor Kit
- Refrigerant Detection System (RDS) Blower Control Board Kit
- R-454B Check and Expansion Valve
Optional Accessories
Refrigerant Detection System (RDS) Coil Sensor Kit
- Complies with UL 60335-2-40 approved standard
- Required for all systems using R-454B refrigerant
- Consists of Refrigerant Detection System (RDS) sensor, lineset sleeves, mounting brackets and A2L labeling
- Sensor ensures safe operation for systems equipped with R-454B refrigerant
- Indoor sensor will detect any refrigerant leaks if they occur
- See R-454B Refrigerant Conversion Table on page 5 Refrigerant Detection System (RDS) Blower Control Board
- Communicating Blower Control Board (Universal)
- Communicating Blower Control Board and Sensor can be used universally with any Lennox® communicating furnace or any non-communicating 24 volt furnace
- Non-Communicating Blower Control Board
- Non-Communicating Blower Control Board and Sensor can be used with any non-communicating 24 volt furnace
Standard Features
- Complies with UL 60335-2-40 approved standard
- Required for all systems using R-454B refrigerant
- Connects to the RDS sensor furnished with the RDS Coil Sensor Kit
- Supports up to two RDS Sensors (factory setting)
- Used as interface between indoor unit and thermostat to control system in case of a refrigerant leak
- Ensures safe operation for systems equipped with
R- 454B refrigerant
- If a leak is detected the refrigerant detection system will prevent compressor and heating operation until a leak is no longer detected
- Refrigeration detection system also energizes the blower if a leak is detected to mitigate any concentrations of refrigerant from the conditioned space
- Multi-color LED for system status and as an aid in troubleshooting
- Flashing LED codes for system status (Green/Blue) and diagnosing Sensor errors (Red)
- Alarm relay can trigger an external alarm if a leak is detected
- Zone relay opens all zone dampers (if part of a zoning system) if a leak is detected
- Power is disabled to non-communicating thermostats to prevent demand if a leak is detected
- On system start-up blower will run for five minutes and any thermostat demands are disabled
- Dimensions (H x W x D): 7-7/16 x 7-7/16 x 2-1/2 (189 x 189 x 127 mm)
- See R-454B Refrigerant Conversion Table on page 5
- NOTE – Refer to the Installation Instructions for additional information.
R-454B Check and Expansion Valve
- For use with R-454B systems
- Wide range valve with Chatleff style fitting
- Replaces factory installed TXV, internal to cabinet
- See Optional R-454B TXV Substitution table on page 5 CABINET
- Pre-painted heavy gauge steel
- Insulated with thick fiberglass insulation
- Flanges provided in outlet for ease of duct connection
- Removable panels provide access to coil
- Refrigerant lines extend outside of cabinet for easy installation
Furnace Match-Up
- Coils exactly match corresponding furnaces with the same letter designation in model number
- No adaptor required
- Engaging holes furnished on cabinet for alignment with furnace
SPECIFICATIONS
| SPECIFICATIONS | 1. 5 TO 2 TON | |||
| Size | 18A | 24A | 24B | |
| Nominal Tonnage | 1.5 | 2 | 2 | |
| Furnace Cabinet Matching Letter Width | A | A | B | |
| Coil & Furnace Cabinet Width – in. | 14-1/2 | 14-1/2 | 17-1/2 | |
| Connections | Liquid line (OD) sweat-in. | 3/8 | 3/8 | 3/8 |
| Suction line (OD) sweat-in. | 7/8 | 7/8 | 7/8 | |
| Condensate drain (FPT) – in. | (2) 3/4 | (2) 3/4 | (2) 3/4 | |
| Indoor Coil | Net face area – ft.2 | 3.5 | 3.5 | 4.67 |
| Tube diameter – in. | 3/8 | 3/8 | 3/8 | |
| Rows | 2 | 3 | 2 | |
| Fins – in. | 19 | 13 | 19 | |
| Shipping Data – lbs. | 44 | 46 | 50 | |
| SPECIFICATIONS | 2. 5 TO 3 TON | |||||
| Size | 30A | 30B | 36A | 36B | 36C | |
| Nominal Tonnage | 2.5 | 2.5 | 3 | 3 | 3 | |
| Furnace Cabinet Matching Letter Width | A | B | A | B | C | |
| Coil & Furnace Cabinet Width – in. | 14-1/2 | 17-1/2 | 14-1/2 | 17-1/2 | 21 | |
| Connections | Liquid line (OD) sweat-in. | 3/8 | 3/8 | 3/8 | 3/8 | 3/8 |
| Suction line (OD) sweat-in. | 7/8 | 7/8 | 7/8 | 7/8 | 7/8 | |
| Condensate drain (FPT) – in. | (2) 3/4 | (2) 3/4 | (2) 3/4 | (2) 3/4 | (2) 3/4 | |
| Indoor Coil | Net face area – ft.2 | 4.33 | 4.67 | 3.5 | 4.67 | 5.83 |
| Tube diameter – in. | 3/8 | 3/8 | 3/8 | 3/8 | 3/8 | |
| Rows | 3 | 3 | 3 | 2 | 2 | |
| Fins per inch | 16 | 13 | 13 | 18 | 18 | |
| Shipping Data – lbs. | 56 | 54 | 48 | 49 | 56 | |
| SPECIFICATIONS | 3. 5 TO 4 TON | ||||
| Size | 42B | 42C | 48B | 48C | |
| Nominal Tonnage | 3.5 | 3.5 | 4 | 4 | |
| Furnace Cabinet Matching Letter Width | B | C | B | C | |
| Coil & Furnace Cabinet Width – in. | 17-1/2 | 21 | 17-1/2 | 21 | |
| Connections | Liquid line (OD) sweat-in. | 3/8 | 3/8 | 3/8 | 3/8 |
| Suction line (OD) sweat-in. | 7/8 | 7/8 | 7/8 | 7/8 | |
| Condensate drain (FPT) – in. | (2) 3/4 | (2) 3/4 | (2) 3/4 | (2) 3/4 | |
| Indoor Coil | Net face area – ft.2 | 5.78 | 5.83 | 5.78 | 5.83 |
| Tube diameter – in. | 3/8 | 3/8 | 3/8 | 3/8 | |
| Rows | 4 | 3 | 3 | 3 | |
| Fins per inch | 13 | 13 | 13 | 13 | |
| Shipping Data – lbs. | 67 | 67 | 61 | 60 | |
| SPECIFICATIONS | 4 TO 5 TON | ||
| Size | 51/61C | 60D | |
| Nominal Tonnage | 4 / 5 | 5 | |
| Furnace Cabinet Matching Letter Width | C | D | |
| 1 Coil & Furnace Cabinet Width – in. | 21 | 24-1/2 | |
| Connections | Liquid line (OD) sweat – in. | 3/8 | 3/8 |
| Suction line (OD) sweat – in. | 7/8 | 7/8 | |
| Condensate drain (FPT) – in. | (2) 3/4 | (2) 3/4 | |
| Indoor Coil | Net face area – ft.2 | 7.22 | 7.94 |
| Tube diameter – in. | 3/8 | 3/8 | |
| Rows | 3 | 3 | |
| Fins per inch | 13 | 13 | |
| Shipping Data – lbs. | 70 | 79 | |
| R-45 4B REFRIGERANT CONVERSION – ORDER SEPARATELY | ||
| Description | Order No. | |
| Refrigerant Detection System (RDS) Coil Sensor Kit | 26Z69 | |
| Refrigerant Detection System (RDS) Blower Control Board | Any Lennox® Communicating Furnace or any Non-Communicating 24V Furnace (Universal) | 27A03 |
| Any Non-Communicating 24V Furnace | 27A02 | |
NOTE – Communicating Blower Control Board and Sensor can be used universally with Lennox® communicating furnace or any non-communicating 24 volt furnace.
Non-Communicating Blower Control Board and Sensor can be used with any non-communicating 24 volt furnace.
NOTE – Order R-454B Expansion Valve separately.
OPTIONAL R-454B TXV SUBSTITUTION
NOTE – R-454B Coil Conversion Kit (26Z69) is required for TXV substitution and must be ordered separately.
| Size | Order Number |
| 18 | 26Z70 |
| 24 | 26Z70 |
| 30 | 26Z70 |
| 36 | 26Z70 |
| 42 | 26Z71 |
| 48 | 26Z71 |
| 51/61 | 26Z71 |
| 60 | 26Z72 |
| AIR RESISTANCE | ||||||||||||||
| Air Volume cfm | Total Air Resistance – in. w.g. | |||||||||||||
| 18A | 24A | 24B | 30A | 30B | 36A | 36B | ||||||||
| Dry Coil | Wet Coil | Dry Coil | Wet Coil | Dry Coil | Wet Coil | Dry Coil | Wet Coil | Dry Coil | Wet Coil | Dry Coil | Wet Coil | Dry Coil | Wet Coil | |
| 200 | 0.02 | 0.02 | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – |
| 400 | 0.05 | 0.06 | 0.04 | 0.05 | 0.03 | 0.04 | 0.04 | 0.05 | 0.02 | 0.02 | – – – | – – – | – – – | – – – |
| 600 | 0.09 | 0.11 | 0.09 | 0.11 | 0.05 | 0.07 | 0.09 | 0.10 | 0.05 | 0.06 | – – – | – – – | – – – | – – – |
| 800 | 0.15 | 0.17 | 0.15 | 0.19 | 0.09 | 0.11 | 0.15 | 0.17 | 0.09 | 0.11 | 0.15 | 0.18 | 0.08 | 0.10 |
| 1000 | 0.22 | 0.25 | 0.23 | 0.29 | 0.15 | 0.17 | 0.24 | 0.27 | 0.14 | 0.16 | 0.22 | 0.27 | 0.11 | 0.16 |
| 1200 | – – – | – – – | 0.32 | 0.40 | 0.21 | 0.23 | 0.34 | 0.38 | 0.19 | 0.23 | 0.30 | 0.39 | 0.16 | 0.21 |
| 1400 | – – – | – – – | 0.43 | 0.50 | 0.28 | 0.30 | 0.45 | 0.51 | 0.26 | 0.30 | 0.41 | 0.48 | 0.21 | 0.27 |
| 1600 | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | 0.53 | 0.63 | 0.27 | 0.35 |
| AIR RESISTANCE | ||||||||||||||
| Air Volume cfm | Total Air Resistance – in. w.g. | |||||||||||||
| 36C | 42B | 42C | 48B | 48C | 51/61C | 60D | ||||||||
| Dry Coil | Wet Coil | Dry Coil | Wet Coil | Dry Coil | Wet Coil | Dry Coil | Wet Coil | Dry Coil | Wet Coil | Dry Coil | Wet Coil | Dry Coil | Wet Coil | |
| 800 | 0.06 | 0.08 | 0.10 | 0.10 | 0.06 | 0.06 | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – |
| 1000 | 0.10 | 0.13 | 0.14 | 0.18 | 0.09 | 0.10 | 0.14 | 0.16 | – – – | – – – | – – – | – – – | – – – | – – – |
| 1200 | 0.15 | 0.18 | 0.20 | 0.25 | 0.15 | 0.16 | 0.19 | 0.23 | 0.16 | 0.19 | 0.15 | 0.16 | – – – | – – – |
| 1400 | 0.19 | 0.23 | 0.26 | 0.31 | 0.18 | 0.21 | 0.25 | 0.29 | 0.21 | 0.26 | 0.20 | 0.23 | 0.12 | 0.16 |
| 1600 | 0.24 | 0.31 | 0.34 | 0.36 | 0.26 | 0.28 | 0.30 | 0.38 | 0.27 | 0.30 | 0.25 | 0.29 | 0.16 | 0.20 |
| 1800 | – – – | – – – | 0.42 | 0.47 | 0.31 | 0.38 | 0.38 | 0.42 | 0.33 | 0.39 | 0.31 | 0.36 | 0.20 | 0.24 |
| 2000 | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | 0.39 | 0.49 | 0.40 | 0.44 | 0.24 | 0.30 |
| 2200 | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | 0.48 | 0.54 | 0.29 | 0.36 |
| 2400 | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | – – – | 0.34 | 0.42 |
DIMENSIONS – FURNACE/COIL COMBINED DIMENSIONS
HORIZONTAL POSITION
| Coil Size | A | B | ||
| in. | mm | in. | mm | |
| 18A24A24B30B36A36B36C42C48C | 26-1/2 | 673 | 59-1/2 | 1511 |
| 30A42B48B51/61C60D | 31-1/2 | 880 | 64-1/2 | 1638 |
DIMENSIONS
| Size | A | B | C | D | E | F | G | H | ||||||||
| in. | mm | in. | mm | in. | mm | in. | mm | in. | mm | in. | mm | in. | mm | in. | mm | |
| 18A | 26-1/2 | 673 | 14-1/2 | 368 | 13 | 330 | 13-3/8 | 340 | 3-1/4 | 83 | 1-3/4 | 44 | 3-3/8 | 86 | 4-3/8 | 111 |
| 24A | 26-1/2 | 673 | 14-1/2 | 368 | 13 | 330 | 13-3/8 | 340 | 3-1/4 | 83 | 1-3/4 | 44 | 3-3/8 | 86 | 4-3/8 | 111 |
| 24B | 26-1/2 | 673 | 17-1/2 | 444 | 16 | 406 | 16-3/8 | 416 | 3-1/4 | 83 | 1-3/4 | 44 | 3-3/8 | 86 | 4-3/8 | 111 |
| 30A | 31-1/2 | 800 | 14-1/2 | 368 | 13 | 330 | 13-3/8 | 340 | 3-1/4 | 83 | 1-3/4 | 44 | 3-3/8 | 86 | 4-3/8 | 111 |
| 30B | 26-1/2 | 673 | 17-1/2 | 444 | 16 | 406 | 16-3/8 | 416 | 3-1/4 | 83 | 1-3/4 | 44 | 3-3/8 | 86 | 4-3/8 | 111 |
| 36A | 26-1/2 | 673 | 14-1/2 | 368 | 13 | 330 | 13-3/8 | 340 | 3-1/4 | 83 | 1-3/4 | 44 | 3-3/8 | 86 | 4-3/8 | 111 |
| 36B | 26-1/2 | 673 | 17-1/2 | 444 | 16 | 406 | 16-3/8 | 416 | 3-1/4 | 83 | 1-3/4 | 44 | 3-3/8 | 86 | 4-3/8 | 111 |
| 36C | 26-1/2 | 673 | 21 | 533 | 19-1/2 | 495 | 19-7/8 | 505 | 3-1/4 | 83 | 1-3/4 | 44 | 3-3/8 | 86 | 4-3/8 | 111 |
| 42B | 31-1/2 | 800 | 17-1/2 | 444 | 16 | 406 | 16-3/8 | 416 | 3-1/4 | 83 | 1-3/4 | 44 | 3-3/8 | 86 | 4-3/8 | 111 |
| 42C | 26-1/2 | 673 | 21 | 533 | 19-1/2 | 495 | 19-7/8 | 505 | 3-1/4 | 83 | 1-3/4 | 44 | 3-3/8 | 86 | 4-3/8 | 111 |
| 48B | 31-1/2 | 800 | 17-1/2 | 444 | 16 | 406 | 16-3/8 | 416 | 3-1/4 | 83 | 1-3/4 | 44 | 3-3/8 | 86 | 4-3/8 | 111 |
| 48C | 26-1/2 | 673 | 21 | 533 | 19-1/2 | 495 | 19-7/8 | 505 | 3-1/4 | 83 | 1-3/4 | 44 | 3-3/8 | 86 | 4-3/8 | 111 |
| 51/61C | 31-1/2 | 800 | 21 | 533 | 19-1/2 | 495 | 19-7/8 | 505 | 3-1/4 | 83 | 1-3/4 | 44 | 3-3/8 | 86 | 4-3/8 | 111 |
| 60D | 31-1/2 | 800 | 24-1/2 | 622 | 23 | 584 | 23-3/8 | 594 | 3-1/4 | 83 | 1-3/4 | 44 | 3-1/4 | 83 | 4-3/8 | 111 |
Visit us at www.Lennox.com
For the latest technical information, www.LennoxPros.com Contact us at 1-800-4-LENNOX
NOTE – Due to Lennox’ ongoing commitment to quality, Specifications, Ratings and Dimensions subject to change without notice and without incurring liability. Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury.
Installation and service must be performed by a qualified installer and servicing agency.
Documents / Resources
 |
LENNOX CK40HT Horizontal Cased Quantum Coil [pdf] Owner's Manual CK40HT-36A-01, CK40HT-42A-01, CK40HT-48A-01, CK40HT-60A-01, CK40HT Horizontal Cased Quantum Coil, CK40HT, Horizontal Cased Quantum Coil, Cased Quantum Coil, Quantum Coil |
