Westinghouse ET4BF-KA Technical Literature

TECHNICAL
SPECIFICATIONS

ET4BF-KA/B Series

Extra High Efciency Heat Pump

16 SEER Residential System
2 - 5 Ton Capacity

The ET4BF-KA/B Series of heat pumps offers
exceptional performance as well as environmental
protection. These models, when matched with
our variable speed air handlers or variable speed
equipped gas furnaces, offer a line of high quality heat
pump systems rated up to 16 SEER and 9.0 HSPF.

FEATURES and BENEFITS

• Copeland Scroll UltraTech

Tech Compressor operates with 2 stages of heating
and cooling capacities to provide superior comfort and
efficiency. Copeland's proven and simple design equates
to years of comfort and reliability for the homeowner with
virtually silent operation.

• Durable, Attractive Cabinet – Designed using
galvanized steel with a polyester urethane finish. The
950 hour salt spray finish is 1.5 mil thick and resists
corrosion 50% better than comparable units.

• Composite Base Pan – Absorbs sound and is corrosion
resistant. Composite is also stronger and lighter than
steel.

• Copper Tube / Aluminum Fin Coils – Both indoor and
outdoor coils are designed to optimize heat transfer, mini-
mize size and cost, and increase durability and reliability.

• Demand Defrost – Provides additional energy savings
in heating by defrosting only when necessary

• Louvered Condenser Guard – Durable metal guard
protects the coil from yard hazards and extreme weather.

• Removable Top Grille Assembly – Allows ease of ser vice
from the top without disconnecting fan motor leads.

• Low Pressure Switch – Loss of charge protection en-
sures long compressor life. Auto-reset feature prevents
nuisance service visits.

• High Pressure Switch – Protects against abnormally
high system pressures. Auto-reset feature prevents
nuisance service visits.

• Liquid Line Filter Drier – Included with unit,
field installed.

• One Piece Top/Orice – Designed for maximum airflow
and quiet operation.

• Common Suction Service Port – This port allows the
contractor to read the suction pressure in all modes of
operation without removing any panels, saving time and
increasing serviceability.

• Three Minute Restart Time Delay – When the unit
shuts down, a three minute delay keeps the unit from
restarting, eliminating the highest cause for compressor
failure.

• Suction Accumulator – Protection from liquid flood
back and future compressor failures.

• Hot Gas Mufer – Reduces compressor noise and
vibration.

• Easy Compressor and Control Access – Designed to
make servicing easier for the contractor, access panels
are provided to all controls and the compressor from the
side of the unit.

TM

Compressor – The Ultra

MODEL IDENTIFICATION CODES

EX: ET4BF-036KA

ES - Air Conditioner
ET - Heat Pump

Design Series

ET 4 B F - 036 K A

Nominal

Product

Identier

BF = Braze 15 - 17 SEER

Capacity

(000) BTU

DIMENSIONS
HEAT PUMP OUTDOOR SECTION

ET4BF 024KB 036KA 048KA 060KA

H 43 1/2 43 1/2 43 1/2 43 1/2

W 31 31 31 31

D 31 31 31 31

Revision

Electrical Code

K = 208/230-60-1

Air Discharge

Allow Adequate Clearance for Airow

W

D

H

2

PHYSICAL AND ELECTRICAL SPECIFICATIONS / OUTDOOR UNITS

16 SEER — Extra High Efciency — Single Phase

Model Number ET4BF

Volts-Cycles-Phase (1)

Electrical Data

Condenser Data

Refrigerant suction line O.D.(all length of
liquid line are 3/8” O.D.)

Refrigerant charge in ounces for outdoor unit, indoor unit and
15’ lineset. (5)

Weight
Approximate (lbs.)

Sound Ratings db

Total Amps

Delay Fuse Max. (2)

Min. Circuit Ampacity

Coil

Fan Motor

Fan Blade

Compresser Data

Area

Rows-FPI

Tube Dia

Type

Speeds

Amps

HP

Dia-# Blades

SCFM

RLA

LRA

0-24 ft.

25-39 ft.

40-75 ft.

Net

Ship

024KB 036KA 048KA 060KA

208/230-60-1 208/230-60-1 208/230-60-1 208/230-60-1

11.4 17.9 24.0 25.9

20 35 50 50

14.0 22.1 29.3 31.7

25.4 25.4 25.4 25.4

1-20 2-18 2-18 2-18

3/8” O.D. 3/8” O.D. 3/8” O.D. 3/8” O.D.

PSC PSC BLDC BLDC

2 2 2 2

1.3 1.3 2.9 2.9

1/4 1/4 1/3 1/3

24”- 2 24”- 2 24”- 2 24”- 2

3600 4000 4000 4000

10.3 16.6 21.1 23.0

52 82 96 118

3/4” 7/8” (4) 7/8” 7/8”

7/8” 1-1/8” (3) 1-1/8” (3) 1-1/8” (3)

7/8” 1-1/8” (3) 1-1/8” (3) 1-1/8” (3)

211 243 272 272

253 277 277 301

265 289 289 313

75 76 76 78

(1) Operating voltage range: 187V minimum - 253 V maximum.
(2) HACR type circuit breakers may be used.
(3) Requires 1-1/8 to 7/8" reducer from unit to lineset.
(4) Use of a 3/4" lineset will result in approximately 2% loss in capacity.
(5) Additional charge for line sets above 15 feet. Values based on suction line as follows with 3/8” liquid line.
a) 3/4” = 0.6 oz. per additional foot.
b) 7/8” = 0.7oz. per additional foot.
c) 1 1/8” = 0.8 oz. per additional foot.

ACCESSORIES - Condensing Unit

Start Assist Kit - 912933

Provides additional starting torque for the compressor
motor when operating with low line voltage or high operat-
ing temperatures.

Extreme Wind Condition Mounting Kit - 920900

Snow Stand Kit - 920636

3

16 SEER COOLING EXPANDED RATINGS

ET4BF-024KB + C6B(A,H)-X26(C,U)-B + VSB - High Speed
ET4BF-024KB + B6VMAX24K-B - High Speed

ODT 75°F 85°F 95°F 105°F 115°F

CFM E.D.B. E.W.B. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W.

80 62 24.7 21.8 1.49 23.6 21.4 1.66 22.4 21.0 1.85 21.1 20.6 2.07 19.8 19.5 2.32

750

850

950

ET4BF-024KB + C6B(A,H)-X26(C,U)-B + VSB - Low Speed
ET4BF-024KB + B6VMAX24K-B - Low Speed

CFM E.D.B. E.W.B. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W.

540

640

740

80 67 26.6 18.2 1.50 25.4 17.6 1.68 24.1 17.1 1.87 22.6 16.5 2.09 21.1 15.8 2.33
80 72 28.6 14.4 1.51 27.3 13.9 1.69 25.9 13.4 1.88 24.3 12.8 2.11 22.6 12.2 2.36
75 63 24.7 17.6 1.49 23.6 17.1 1.66 22.4 16.5 1.85 21.1 15.9 2.07 19.6 15.2 2.31
80 62 25.4 23.3 1.50 24.2 22.8 1.67 23.1 22.3 1.85 21.8 21.8 2.08 20.5 20.5 2.33
80 67 27.2 19.3 1.50 25.9 18.8 1.68 24.6 18.2 1.87 23.1 17.6 2.10 21.5 16.9 2.34
80 72 29.2 15.1 1.52 27.8 14.6 1.70 26.3 14.1 1.89 24.7 13.5 2.12 23.0 12.8 2.37
75 63 25.3 18.7 1.50 24.1 18.1 1.67 22.9 17.6 1.86 21.5 16.9 2.08 19.9 16.2 2.32
80 62 25.9 24.8 1.52 24.9 24.1 1.67 23.8 23.4 1.86 22.5 22.5 2.09 21.1 21.1 2.34
80 67 27.7 20.5 1.51 26.3 19.9 1.68 25.0 19.3 1.87 23.4 18.7 2.10 21.8 17.9 2.35
80 72 29.7 15.8 1.53 28.2 15.3 1.70 26.7 14.7 1.89 25.0 14.1 2.12 23.2 13.4 2.37
75 63 25.8 19.7 1.51 24.5 19.2 1.67 23.2 18.6 1.86 21.8 17.9 2.08 20.3 17.2 2.32

ODT 75°F 85°F 95°F 105°F 115°F

80 62 18.2 16.1 1.04 17.4 15.8 1.16 16.5 15.5 1.32 15.5 15.2 1.50 14.5 14.3 1.70
80 67 19.8 13.5 1.04 18.9 13.1 1.16 17.8 12.6 1.32 16.7 12.2 1.50 15.5 11.7 1.69
80 72 21.5 10.7 1.03 20.5 10.4 1.16 19.3 9.9 1.32 18.1 9.5 1.49 16.7 9.0 1.69
75 63 18.3 13.0 1.04 17.5 12.6 1.16 16.5 12.2 1.33 15.5 11.7 1.50 14.3 11.2 1.70
80 62 19.0 17.7 1.04 18.1 17.3 1.16 17.2 16.7 1.32 16.3 16.3 1.50 15.3 15.2 1.69
80 67 20.4 14.7 1.04 19.5 14.3 1.16 18.4 13.8 1.32 17.2 13.3 1.50 15.9 12.8 1.69
80 72 22.1 11.5 1.04 21.1 11.1 1.16 19.8 10.6 1.32 18.5 10.1 1.50 17.2 9.6 1.69
75 63 18.9 14.1 1.04 18.0 13.7 1.16 17.0 13.3 1.32 15.9 12.8 1.50 14.7 12.2 1.70
80 62 19.7 18.8 1.05 18.9 18.3 1.16 18.0 17.7 1.32 17.0 16.9 1.50 15.9 15.8 1.69
80 67 21.0 15.9 1.04 19.9 15.5 1.16 18.8 15.0 1.32 17.6 14.5 1.50 16.3 13.9 1.69
80 72 22.6 12.1 1.04 21.5 11.8 1.16 20.2 11.3 1.32 18.9 10.7 1.50 17.4 10.2 1.69
75 63 19.4 15.2 1.05 18.5 14.8 1.16 17.4 14.3 1.32 16.2 13.8 1.50 15.0 13.2 1.70

ET4BF-036KA + C6B(A,H)-X36(C,U)-(B,C) + VSB - High Speed
ET4BF-036KA + B6VMAX36K-B - High Speed

O.D.T 75°F 85°F 95°F 105°F 115°F

CFM E.D.B. E.W.B. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W.

80 62 36.6 32.9 2.36 34.9 32.2 2.62 33.3 31.7 2.86 31.6 31.1 3.15 29.8 29.4 3.48

1150

1250

1350

ET4BF-036KA + C6B(A,H)-X36(C,U)-(B,C) + VSB - Low Speed
ET4BF-036KA + B6VMAX36K-B - Low Speed

CFM E.D.B. E.W.B. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W.

800

900

1000

80 67 39.5 27.4 2.37 37.6 26.7 2.65 35.8 26.0 2.88 33.8 25.2 3.17 31.6 24.3 3.50
80 72 42.6 21.7 2.39 40.6 20.9 2.67 38.7 20.3 2.91 36.5 19.5 3.20 34.2 18.7 3.52
75 63 36.7 26.6 2.36 35.0 25.8 2.63 33.4 25.1 2.87 31.5 24.3 3.15 29.5 23.4 3.48
80 62 37.3 34.3 2.36 35.6 33.6 2.63 34.0 32.9 2.87 32.3 32.3 3.16 30.5 30.5 3.49
80 67 40.0 28.6 2.37 38.1 27.9 2.65 36.3 27.2 2.89 34.3 26.4 3.18 32.0 25.5 3.50
80 72 43.2 22.4 2.40 41.1 21.7 2.68 39.1 21.0 2.91 37.0 20.2 3.20 34.5 19.4 3.53
75 63 37.3 27.7 2.37 35.5 26.9 2.63 33.8 26.2 2.87 31.9 25.4 3.16 29.8 24.5 3.49
80 62 37.7 36.0 2.39 36.2 35.1 2.63 34.7 34.2 2.87 33.0 33.0 3.17 31.2 31.1 3.49
80 67 40.5 29.8 2.39 38.5 29.0 2.65 36.7 28.3 2.89 34.6 27.5 3.18 32.4 26.6 3.51
80 72 43.7 23.2 2.41 41.5 22.4 2.68 39.5 21.7 2.92 37.3 21.0 3.21 34.8 20.1 3.52
75 63 37.8 28.8 2.38 36.0 28.0 2.64 34.2 27.3 2.87 32.3 26.4 3.16 30.2 25.5 3.49

O.D.T 75°F 85°F 95°F 105°F 115°F

80 62 25.4 23.3 1.47 24.3 22.8 1.64 23.2 22.4 1.83 22.0 21.7 2.06 20.7 20.4 2.33
80 67 27.6 19.4 1.44 26.3 18.9 1.61 25.0 18.4 1.81 23.6 17.8 2.04 21.9 17.2 2.30
80 72 30.1 15.3 1.41 28.8 14.8 1.58 27.3 14.3 1.77 25.6 13.8 2.00 23.9 13.2 2.26
75 63 25.6 18.8 1.47 24.4 18.2 1.64 23.2 17.7 1.83 21.9 17.1 2.06 20.3 16.5 2.33

62 26.3 24.5 1.47 25.0 24.0 1.63 24.0 23.3 1.82 22.8 22.8 2.05 21.5 21.4 2.30

80
80 67 28.1 20.7 1.44 26.8 20.1 1.60 25.5 19.6 1.80 24.0 19.1 2.03 22.3 18.4 2.29
80 72 30.6 16.1 1.41 29.1 15.6 1.57 27.7 15.1 1.77 26.1 14.5 2.00 24.2 13.9 2.26
75 63 26.1 20.0 1.47 24.9 19.4 1.63 23.7 18.9 1.83 22.3 18.3 2.06 20.7 17.6 2.32
80 62 26.9 25.7 1.47 25.8 25.1 1.62 24.8 24.4 1.81 23.5 23.5 2.04 22.1 22.1 2.30
80 67 28.7 22.0 1.43 27.2 21.4 1.59 25.9 20.9 1.80 24.4 20.3 2.02 22.7 19.6 2.29
80 72 31.1 16.9 1.40 29.5 16.3 1.56 28.1 15.8 1.76 26.4 15.3 1.99 24.6 14.6 2.25
75 63 26.6 21.1 1.47 25.3 20.5 1.63 24.1 20.0 1.82 22.6 19.4 2.05 21.0 18.7 2.32

4

16 SEER COOLING EXPANDED RATINGS (Continued)

ET4BF-048KA + C6B(A,H)-X48(C,U)-C + VSB - High Speed
ET4BF-048KA + B6VMAX48K-C - High Speed

O.D.T 75°F 85°F 95°F 105°F 115°F

CFM E.D.B. E.W.B. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W.

80 62 48.9 43.9 3.13 46.7 43.0 3.48 44.6 42.3 3.80 42.3 41.3 4.18 39.8 39.2 4.62

1600

1700

1800

ET4BF-048KA + C6B(A,H)-X48(C,U)-C + VSB - Low Speed
ET4BF-048KA + B6VMAX48K-C - Low Speed

CFM E.D.B. E.W.B. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W.

1040

1140

1240

80 67 52.4 36.6 3.15 49.9 35.6 3.52 47.7 34.6 3.83 45.0 33.5 4.22 42.1 32.3 4.65
80 72 56.3 28.9 3.17 53.7 28.0 3.55 51.1 27.0 3.86 48.3 26.0 4.26 45.1 24.8 4.70
75 63 48.9 35.5 3.13 46.7 34.4 3.49 44.5 33.4 3.80 42.0 32.3 4.18 39.2 31.1 4.62
80 62 49.6 45.2 3.13 47.3 44.3 3.48 45.2 43.4 3.80 42.9 42.8 4.19 40.4 40.4 4.63
80 67 52.9 37.8 3.15 50.4 36.7 3.52 48.1 35.7 3.83 45.4 34.6 4.22 42.4 33.3 4.66
80 72 56.8 29.6 3.18 54.1 28.6 3.55 51.6 27.7 3.87 48.7 26.7 4.26 45.4 25.5 4.70
75 63 49.5 36.5 3.14 47.1 35.5 3.49 44.9 34.5 3.80 42.4 33.3 4.19 39.5 32.0 4.63
80 62 49.9 47.1 3.18 47.9 45.9 3.50 45.7 45.1 3.81 43.5 43.5 4.20 41.0 41.0 4.64
80 67 53.5 38.9 3.17 50.9 37.8 3.52 48.5 36.8 3.84 45.8 35.7 4.23 42.7 34.4 4.66
80 72 57.4 30.3 3.19 54.5 29.3 3.56 51.9 28.4 3.87 49.0 27.3 4.26 45.7 26.1 4.71
75 63 50.0 37.5 3.16 47.5 36.5 3.50 45.3 35.5 3.81 42.7 34.3 4.19 39.9 33.0 4.63

O.D.T 75°F 85°F 95°F 105°F 115°F

80 62 35.2 31.2 1.96 33.6 30.6 2.19 32.0 30.2 2.48 30.3 29.6 2.80 28.5 28.0 3.18
80 67 38.1 26.1 1.93 36.3 25.3 2.16 34.6 24.7 2.45 32.7 23.9 2.78 30.4 23.0 3.15
80 72 41.3 20.7 1.89 39.4 20.0 2.12 37.4 19.3 2.41 35.3 18.6 2.74 33.0 17.8 3.11
75 63 35.4 25.2 1.96 33.7 24.5 2.18 32.2 23.8 2.48 30.3 23.0 2.81 28.2 22.1 3.18
80 62 35.9 32.8 1.96 34.2 32.2 2.18 32.7 31.6 2.47 31.1 31.1 2.79 29.3 29.2 3.17
80 67 38.7 27.3 1.93 36.8 26.6 2.15 35.1 25.9 2.44 33.1 25.1 2.77 30.8 24.2 3.14
80 72 41.8 21.4 1.89 39.8 20.7 2.12 37.9 20.1 2.40 35.8 19.3 2.73 33.4 18.5 3.10
75 63 36.0 26.4 1.96 34.3 25.7 2.18 32.7 25.0 2.47 30.8 24.2 2.80 28.6 23.2 3.18
80 62 36.4 34.7 1.97 34.9 33.9 2.17 33.5 33.0 2.46 31.8 31.8 2.78 29.9 29.9 3.16
80 67 39.2 28.5 1.93 37.3 27.8 2.15 35.6 27.1 2.43 33.5 26.3 2.76 31.2 25.4 3.14
80 72 42.4 22.2 1.89 40.3 21.5 2.11 38.4 20.8 2.40 36.2 20.1 2.73 33.7 19.2 3.10
75 63 36.5 27.6 1.96 34.8 26.8 2.17 33.1 26.1 2.46 31.2 25.3 2.79 29.0 24.3 3.17

ET4BF-060KA + C6B(A,H)-X60(C,U)-(C,D) + VSB - High Speed
ET4BF-060KA + B6VMAX60K-C - High Speed

O.D.T 75°F 85°F 95°F 105°F 115°F

CFM E.D.B. E.W.B. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W.

80 62 57.9 50.1 3.67 55.2 49.2 4.09 52.5 48.4 4.50 49.5 47.5 4.98 46.3 45.6 5.52

1700

1800

1900

ET4BF-060KA + C6B(A,H)-X60(C,U)-(C,D) + VSB - Low Speed
ET4BF-060KA + B6VMAX60K-C - Low Speed

CFM E.D.B. E.W.B. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W. T.C. S.C. K.W.

1100

1200

1300

80 67 62.5 42.1 3.70 59.5 40.9 4.14 56.5 39.7 4.55 53.2 38.4 5.03 49.5 36.9 5.57
80 72 67.9 33.4 3.76 64.7 32.3 4.21 61.4 31.2 4.62 57.6 30.0 5.10 53.4 28.7 5.64
75 63 58.3 40.9 3.68 55.6 39.7 4.10 52.9 38.5 4.51 49.7 37.1 4.98 46.3 35.7 5.53
80 62 58.5 51.7 3.68 55.8 50.7 4.09 53.1 49.8 4.51 50.1 49.5 4.98 47.0 46.9 5.53
80 67 63.1 43.3 3.71 60.1 42.1 4.15 57.0 40.9 4.56 53.7 39.6 5.04 49.9 38.1 5.59
80 72 68.5 34.2 3.77 65.2 33.1 4.21 61.7 32.0 4.63 57.9 30.8 5.10 53.7 29.4 5.64
75 63 59.0 42.0 3.69 56.3 40.8 4.10 53.4 39.6 4.52 50.2 38.2 4.99 46.7 36.7 5.53
80 62 58.8 54.1 3.73 56.5 52.7 4.10 53.7 52.0 4.52 50.7 50.6 4.99 47.7 47.6 5.54
80 67 63.7 44.5 3.74 60.6 43.3 4.15 57.5 42.1 4.57 54.1 40.7 5.04 50.3 39.2 5.59
80 72 69.0 35.0 3.79 65.5 33.9 4.22 62.0 32.8 4.63 58.2 31.5 5.10 54.1 30.1 5.65
75 63 59.6 43.1 3.71 56.7 41.9 4.11 53.8 40.7 4.52 50.6 39.3 5.00 47.0 37.8 5.54

O.D.T 75°F 85°F 95°F 105°F 115°F

80 62 41.2 34.7 2.43 39.3 34.1 2.71 37.4 33.6 3.06 35.2 33.0 3.47 32.7 31.8 3.92
80 67 44.9 29.4 2.42 42.8 28.6 2.70 40.6 27.7 3.06 38.2 26.7 3.46 35.5 25.6 3.92
80 72 49.2 23.5 2.41 47.0 22.7 2.70 44.6 21.9 3.06 41.9 21.0 3.46 38.8 20.0 3.91
75 63 41.7 28.5 2.43 39.8 27.7 2.71 37.8 26.8 3.07 35.5 25.8 3.47 32.9 24.7 3.92

62 42.0 36.5 2.43 40.1 35.8 2.71 38.1 35.3 3.06 35.9 35.2 3.47 33.5 33.5 3.92

80
80 67 45.6 30.6 2.42 43.5 29.8 2.70 41.2 28.9 3.06 38.8 28.0 3.46 36.0 26.9 3.92
80 72 49.9 24.4 2.41 47.5 23.6 2.70 45.1 22.8 3.06 42.3 21.9 3.46 39.1 20.9 3.91
75 63 42.5 29.7 2.43 40.5 28.9 2.71 38.4 28.0 3.06 36.1 27.0 3.47 33.4 25.9 3.92
80 62 42.4 38.9 2.46 40.8 37.9 2.70 38.8 37.4 3.06 36.6 36.5 3.47 34.3 34.3 3.92
80 67 46.4 31.9 2.43 44.1 31.1 2.70 41.8 30.2 3.06 39.3 29.2 3.46 36.4 28.1 3.91
80 72 50.6 25.2 2.42 48.1 24.4 2.69 45.5 23.6 3.06 42.6 22.7 3.46 39.5 21.6 3.91
75 63 43.2 30.9 2.44 41.1 30.1 2.70 38.9 29.2 3.06 36.6 28.2 3.47 33.9 27.0 3.92

5

16 SEER HEATING EXPANDED RATINGS

ET4BF-024KB + C6B(A,H)-X26(C,U)-B + VSB - High Speed
ET4BF-024KB + B6VMAX24K-B - High Speed

OUTDOOR TEMPERATURE (Deg. F)

Indoor T.

100

CFM Deg.F

60 12.7 2.36 1.58 15.1 2.78 1.59 16.1 2.96 1.60 19.5 3.55 1.61 22.8 4.13 1.62 25.2 4.53 1.63 26.2 4.70 1.63 29.5 5.26 1.64

750

850

950

ET4BF-024KB + C6B(A,H)-X26(C,U)-B + VSB - Low Speed
ET4BF-024KB + B6VMAX24K-B - Low Speed

CFM Deg.F

540

640

740

70 12.2 2.32 1.54 14.4 2.69 1.56 15.3 2.85 1.57 18.4 3.36 1.61 21.5 3.85 1.64 23.7 4.18 1.66 24.6 4.32 1.67 27.8 4.78 1.70
80 11.6 2.24 1.52 13.6 2.58 1.55 14.5 2.72 1.56 17.3 3.18 1.60 20.2 3.62 1.64 22.2 3.92 1.66 23.1 4.04 1.68 26.0 4.44 1.71
60 12.8 2.31 1.63 15.2 2.73 1.63 16.2 2.91 1.64 19.6 3.50 1.65 23.0 4.08 1.66 25.4 4.48 1.66 26.5 4.66 1.67 29.9 5.22 1.68
70 12.3 2.27 1.59 14.5 2.64 1.61 15.5 2.80 1.62 18.6 3.31 1.65 21.8 3.80 1.68 24.0 4.14 1.70 25.0 4.28 1.71 28.1 4.74 1.74
80 11.7 2.20 1.56 13.8 2.54 1.59 14.6 2.68 1.60 17.6 3.14 1.64 20.5 3.58 1.68 22.6 3.87 1.71 23.5 3.99 1.73 26.4 4.38 1.77
60 12.9 2.27 1.67 15.3 2.69 1.67 16.4 2.87 1.68 19.8 3.46 1.68 23.3 4.04 1.69 25.7 4.45 1.69 26.7 4.63 1.69 30.2 5.20 1.70
70 12.4 2.24 1.63 14.6 2.61 1.65 15.6 2.77 1.65 18.8 3.28 1.68 22.0 3.77 1.71 24.3 4.11 1.73 25.3 4.25 1.74 28.5 4.71 1.77
80 11.8 2.17 1.60 13.9 2.51 1.63 14.8 2.64 1.64 17.7 3.09 1.68 20.7 3.52 1.73 22.8 3.80 1.76 23.7 3.92 1.77 26.6 4.31 1.81

Indoor T.

100

60 6.0 1.71 1.04 8.5 2.28 1.09 9.6 2.51 1.12 13.1 3.19 1.21 16.7 3.79 1.29 19.2 4.16 1.35 20.2 4.31 1.38 23.8 4.77 1.46
70 5.6 1.79 0.91 7.9 2.32 1.00 8.9 2.52 1.03 12.1 3.09 1.15 15.4 3.55 1.27 17.7 3.83 1.36 18.7 3.94 1.39 22.0 4.26 1.51
80 4.9 1.80
60 6.1 1.65 1.08 8.6 2.21 1.14 9.7 2.44 1.16 13.3 3.12 1.25 16.9 3.73 1.33 19.4 4.10 1.39 20.5 4.26 1.41 24.1 4.73 1.50
70 5.7 1.72 0.97 8.0 2.23 1.05 9.0 2.43 1.09 12.3 3.01 1.20 15.7 3.48 1.32 18.0 3.77 1.40 19.0 3.88 1.44 22.3 4.22 1.55
80 5.1 1.75 0.85 7.3 2.24 0.95 8.2 2.42 0.99 11.3 2.91 1.14 14.4 3.29 1.28 16.6 3.51 1.38 17.5 3.60 1.43 20.6 3.85 1.57
60 6.3 1.63 1.13 8.8 2.18 1.19 9.9 2.40 1.21 13.5 3.08 1.29 17.1 3.68 1.36 19.7 4.07 1.42 20.7 4.22 1.44 24.4 4.71 1.52
70 5.8 1.67 1.01 8.1 2.19 1.09 9.1 2.38 1.12 12.5 2.96 1.24 15.9 3.44 1.36 18.3 3.73 1.44 19.3 3.85 1.47 22.7 4.19 1.59
80 5.2 1.70 0.90 7.4 2.17 1.00 8.3 2.34 1.04 11.4 2.83 1.19 14.6 3.21 1.33 16.7 3.43 1.43 17.7 3.51 1.48 20.8 3.77 1.62

10 17 20 30 40 47 50 60

MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW

OUTDOOR TEMPERATURE (Deg. F)

10 17 20 30 40 47 50 60

MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW

0.81 7.1 2.30 0.90 8.0 2.48 0.95 11.0 2.98 1.09 14.1 3.36 1.23 16.2 3.59 1.32 17.1 3.67 1.37 20.2 3.92 1.51

ET4BF-036KA + C6B(A,H)-X36(C,U)-(B,C) + VSB - High Speed
ET4BF-036KA + B6VMAX36K-B - High Speed

Indoor T.

100

CFM Deg.F

60 19.8 2.60 2.24 23.1 2.91 2.32 24.5 3.04 2.36 29.2 3.44 2.49 33.9 3.80 2.61 37.1 4.03 2.70 38.5 4.13 2.74 43.2 4.43 2.86

1150

1250

1350

ET4BF-036KA + C6B(A,H)-X36(C,U)-(B,C) + VSB - Low Speed
ET4BF-036KA + B6VMAX36K-B - Low Speed

CFM Deg.F

800

900

1000

70 19.1 2.44 2.30 22.2 2.72 2.40 23.6 2.83 2.44 28.1 3.18 2.58 32.6 3.50 2.73 35.7 3.70 2.83 37.0 3.78 2.87 41.5 4.03 3.02
80 18.5 2.29 2.38 21.5 2.54 2.49 22.8 2.64 2.53 27.1 2.95 2.69 31.3 3.22 2.85 34.3 3.40 2.96 35.6 3.47 3.01 39.8 3.69 3.17
60 19.9 2.57 2.27 23.2 2.89 2.36 24.6 3.02 2.39 29.4 3.43 2.51 34.1 3.80 2.63 37.5 4.04 2.72 38.9 4.14 2.76 43.6 4.45 2.88
70 19.2 2.42 2.33 22.4 2.70 2.43 23.8 2.82 2.47 28.3 3.18 2.61 32.8 3.50 2.75 36.0 3.70 2.85 37.4 3.79 2.89 41.9 4.05 3.03
80 18.6 2.27 2.41 21.7 2.52 2.52 22.9 2.63 2.56 27.3 2.94 2.72 31.6 3.22 2.87 34.6 3.41 2.98 35.9 3.48 3.03 40.2 3.71 3.18
60 19.9 2.53 2.30 23.3 2.86 2.39 24.7 2.99 2.42 29.5 3.41 2.54 34.4
70 19.4 2.40 2.36 22.6 2.69 2.46 23.9 2.81 2.50 28.5 3.17 2.64 33.1 3.50 2.77 36.3 3.71 2.87 37.7 3.79 2.91 42.2 4.06 3.05
80 18.8 2.25 2.44 21.8 2.51 2.55 23.1 2.61 2.59 27.5 2.93 2.74 31.8 3.22 2.90 34.8 3.40 3.00 36.1 3.48 3.05 40.5 3.71 3.20

Indoor T.

100

60 12.1 2.16 1.65 14.6 2.54 1.68 15.6 2.70 1.70 19.2 3.22 1.75 22.7 3.70 1.80 25.2 4.02 1.83 26.2 4.16 1.85 29.7 4.59 1.90
70 11.6 2.10 1.61 13.9 2.44 1.67 14.8 2.58 1.69 18.1 3.02 1.76 21.4 3.42 1.83 23.7 3.69 1.89 24.7 3.80 1.91 28.0 4.14 1.98
80 11.0 2.01 1.60 13.1 2.31 1.66 14.0 2.44 1.69 17.1 2.83 1.77 20.1 3.18 1.85 22.2 3.41 1.91 23.1 3.50 1.94 26.2 3.80 2.02
60 12.2 2.12 1.69 14.7 2.50 1.72 15.8 2.66 1.74 19.3 3.18 1.78 22.9 3.67 1.83 25.4 4.00 1.87 26.5 4.13 1.88 30.1 4.58 1.93
70 11.7 2.06 1.66 14.0 2.40 1.71 15.0 2.54 1.73 18.3 2.99 1.80 21.7 3.40 1.87 24.0 3.67 1.92 25.0 3.78 1.94 28.3 4.13 2.01
80 11.1 1.98 1.64 13.3 2.29 1.70 14.2 2.41 1.73 17.3 2.80 1.81 20.4 3.16 1.90 22.6 3.39 1.96 23.5 3.48 1.98 26.6 3.78 2.07
60 12.3 2.09 1.73 14.8 2.47 1.76 15.9 2.63 1.77 19.5 3.15 1.82 23.2 3.65 1.86 25.7 3.98 1.89 26.8 4.12 1.91 30.4 4.57 1.95
70 11.8 2.04 1.70 14.1 2.38 1.75 15.2 2.52 1.77 18.5 2.97 1.83 21.9 3.38 1.90 24.3 3.65 1.95 25.3 3.77 1.97 28.7 4.12 2.04
80 11.2 1.96 1.68 13.4 2.26 1.74 14.3 2.38 1.76 17.5 2.77 1.85 20.6 3.12 1.94 22.8 3.35 1.99 23.7 3.44 2.02 26.8 3.74 2.11

10 17 20 30 40 47 50 60

MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW

10 17 20 30 40 47 50 60

MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW

OUTDOOR TEMPERATURE (Deg. F)

3.79 2.66 37.7 4.03 2.74 39.2 4.13 2.78 44.0 4.45 2.90

OUTDOOR TEMPERATURE (Deg. F)

6

16 SEER HEATING EXPANDED RATINGS (Continued)

ET4BF-048KA with C6B(A,H)-X48(C,U)-C + VSB - High Speed
ET4BF-048KA with B6VMAX48K-C - High Speed

OUTDOOR TEMPERATURE (Deg. F)

Indoor T.

CFM Deg.F

60 27.2 2.66 2.99 31.0 2.93 3.10 32.7 3.05 3.14 38.2 3.39 3.30 43.7 3.71 3.45 47.5 3.92 3.56 49.2 4.00 3.60 54.7 4.27 3.76

1500

1700

1900

ET4BF-048KA with C6B(A,H)-X48(C,U)-C + VSB - Low Speed
ET4BF-048KA with B6VMAX48K-C - Low Speed

CFM Deg.F

950

1100

1250

70 26.3 2.43 3.17 30.0 2.68 3.28 31.6 2.79 3.33 37.0 3.11 3.49 42.3 3.40 3.65 46.1 3.59 3.77 47.7 3.66 3.81 53.0 3.91 3.98
80 25.8 2.25 3.36 29.4 2.47 3.48 30.9 2.56 3.54 36.0 2.85 3.71 41.1 3.11 3.88 44.7 3.28 4.00 46.2 3.35 4.05 51.3 3.57 4.22

60 27.4 2.65 3.04 31.3 2.93 3.14 33.0 3.04 3.18 38.6 3.41 3.32 44.2 3.74 3.47 48.2 3.96 3.57 49.9 4.05 3.61 55.5 4.33 3.75
70 26.6 2.43 3.21 30.4 2.69 3.32 32.0 2.79 3.37 37.5 3.12 3.52 42.9 3.43 3.67 46.7 3.63 3.77 48.3 3.71 3.82 53.7 3.97 3.97
80 26.0 2.23 3.42 29.7 2.47 3.53 31.2 2.56 3.57 36.5 2.87 3.73 41.7 3.14 3.89 45.4 3.32 4.00 46.9 3.40 4.05 52.1 3.64 4.21

60 27.5 2.61 3.08 31.5 2.90 3.18 33.2 3.02 3.22 39.0 3.40 3.36 44.7 3.75 3.50 48.8 3.98 3.60 50.5 4.07 3.64 56.2 4.37 3.78
70 27.0 2.42 3.27 30.8 2.68 3.37 32.5 2.79 3.41 37.9 3.13 3.55 43.4 3.45 3.69 47.3 3.66 3.79 48.9 3.74 3.83 54.4 4.01 3.98
80 26.3 2.23 3.47 30.0 2.47 3.57 31.6 2.56 3.61 36.9 2.88 3.76 42.2 3.16 3.91 45.9 3.35 4.01 47.5 3.43 4.06 52.8 3.68 4.20

Indoor T.

60 18.0 2.37 2.23 20.9 2.67 2.29 22.1 2.80 2.32 26.2 3.19 2.41 30.3 3.55 2.50 33.1 3.80 2.56 34.4 3.89 2.59 38.4 4.21 2.68
70 17.4 2.23 2.29 20.1 2.49 2.36 21.2 2.60 2.39 25.1 2.95 2.50 29.0 3.26 2.61 31.7 3.47 2.68 32.9 3.55 2.71 36.7 3.82 2.82
80 16.8 2.08 2.37 19.4 2.32 2.45 20.4 2.42 2.48 24.1 2.72 2.60 27.7 3.00 2.71 30.3 3.18 2.79 31.3 3.25 2.83 35.0 3.49 2.94

60 18.2 2.34 2.28 21.1 2.64 2.34
70 17.6 2.20 2.34 20.3 2.47 2.41 21.5 2.58 2.44 25.4 2.94 2.54 29.4 3.26 2.64 32.1 3.48 2.71 33.3 3.57 2.74 37.3 3.85 2.84
80 17.0 2.06 2.42 19.6 2.30 2.50 20.7 2.40 2.53 24.4 2.71 2.64 28.1 3.00 2.75 30.8 3.19 2.83 31.9 3.27 2.86 35.6 3.51 2.97

60 18.3 2.30 2.33 21.3 2.61 2.39 22.5 2.74 2.41 26.8 3.16 2.49 31.0 3.54 2.57 34.0 3.80 2.63 35.3 3.90 2.65 39.5 4.25 2.73
70 17.8 2.18 2.39 20.6 2.45 2.46 21.8 2.57 2.49 25.8 2.93 2.58 29.8 3.26 2.68 32.6 3.48 2.74 33.8 3.57 2.77 37.8 3.87 2.87
80 17.2 2.04 2.47 19.8 2.28 2.54 20.9 2.38 2.58 24.7 2.70 2.68 28.5 2.99 2.79 31.1 3.19 2.86 32.2 3.27 2.90 36.0 3.52 3.00

10 17 20 30 40 47 50 60

MBH COP kW MBH COP kW MBH COP kW MBHCOP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW

OUTDOOR TEMPERATURE (Deg. F)

10 17 20 30 40 47 50 60

MBH COP kW MBH COP kW MBH COP kW MBHCOP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW

22.4 2.77 2.37 26.5 3.17 2.45 30.7 3.55 2.53 33.6 3.80 2.59 34.9 3.90 2.62 39.0 4.24 2.70

ET4BF-060KA + C6B(A,H)-X60(C,U)-(C,D) + VSB - High Speed
ET4BF-060KA + B6VMAX60K-C - High Speed

Indoor T.

100

CFM Deg.F

60 30.9 2.54 3.57 35.2 2.81 3.68 37.1 2.92 3.72 43.2 3.28 3.87 49.3 3.61 4.01 53.6 3.82 4.12 55.5 3.91 4.16 61.6 4.20 4.31

1700

1800

1900

ET4BF-060KA + C6B(A,H)-X60(C,U)-(C,D) + VSB - Low Speed
ET4BF-060KA + B6VMAX60K-C - Low Speed

CFM Deg.F

1100

1200

1300

70 30.0 2.29 3.84 34.2 2.55 3.94 36.0 2.65 3.98 42.0 2.98 4.13 48.0 3.29 4.27 52.2 3.50 4.38 54.0 3.58 4.42 60.0 3.85 4.57
80 29.5 2.10 4.12 33.6 2.33 4.23 35.3 2.42 4.27 41.1 2.72 4.42 46.8 3.00 4.57 50.9 3.19 4.68 52.6 3.27 4.72 58.4 3.52 4.87
60 31.0 2.53 3.60 35.4 2.81 3.69 37.2 2.92 3.74 43.4 3.29 3.88 49.6 3.62 4.02 54.0 3.85 4.12 55.9 3.94 4.16 62.1 4.23 4.30
70 30.2 2.30 3.85 34.4 2.55 3.95 36.2 2.66 3.99 42.2 3.00 4.13 48.3 3.31 4.27 52.5 3.52 4.37 54.3 3.61 4.41 60.3 3.89 4.55
80 29.6 2.09 4.14 33.7 2.33 4.24 35.4 2.42 4.28 41.2 2.74 4.42 47.1 3.03 4.56 51.2 3.22 4.66 52.9 3.30 4.70 58.8 3.56 4.84
60 30.9 2.51 3.61 35.3 2.79 3.71 37.2 2.91 3.75 43.5 3.28 3.89 49.9 3.62 4.03 54.3 3.85 4.13 56.2 3.95 4.17 62.5 4.25 4.32
70 30.4 2.30 3.87 34.6 2.56 3.97 36.4 2.66 4.01 42.5 3.01 4.14 48.6 3.33 4.28 52.8 3.54 4.37 54.6 3.63 4.41 60.7 3.91 4.55
80 29.7 2.09 4.16 33.8 2.33 4.25 35.6 2.43 4.29 41.4 2.75 4.42 47.3 3.05 4.56 51.4 3.24 4.65 53.2 3.33 4.69 59.1 3.59 4.82

Indoor T.

100

60 19.8 2.11 2.76 23.3 2.43 2.82 24.8 2.56 2.84 29.7 2.98 2.93 34.7 3.38 3.01 38.1 3.64 3.07 39.6 3.76 3.09 44.6 4.11 3.18
70 19.1 1.94 2.89 22.4 2.22 2.96 23.9 2.34 2.99 28.6 2.73 3.08 33.4 3.09 3.17 36.7 3.33 3.23 38.1 3.43 3.26 42.9 3.75 3.35
80 18.6 1.78 3.05 21.7 2.04 3.12 23.1 2.15
60 19.9 2.09 2.79 23.4 2.42 2.84 24.9 2.55 2.87 29.9 2.98 2.95 35.0 3.39 3.03 38.5 3.66 3.08 40.0 3.77 3.11 45.0 4.14 3.19
70 19.2 1.93 2.92 22.6 2.22 2.98 24.0 2.34 3.01 28.8 2.73 3.10 33.6 3.10 3.18 37.0 3.34 3.25 38.4 3.44 3.27 43.2 3.77 3.36
80 18.6 1.77 3.08 21.9 2.04 3.14 23.2 2.15 3.17 27.8 2.50 3.26 32.4 2.83 3.35 35.6 3.06 3.42 37.0 3.15 3.45 41.6 3.45 3.54
60 19.9 2.08 2.81 23.5 2.40 2.87 25.0 2.53 2.89 30.1 2.97 2.97 35.2 3.38 3.05 38.7 3.66 3.11 40.3 3.77 3.13 45.3 4.15 3.21
70 19.4 1.93 2.95 22.8 2.22 3.01 24.2 2.34 3.03 29.1 2.73 3.12 33.9 3.10 3.20 37.3 3.35 3.26 38.8 3.46 3.29 43.6 3.79 3.37
80 18.8 1.77 3.10 22.0 2.04 3.17 23.4 2.15 3.19 28.0 2.50 3.28 32.6 2.84 3.37 35.8 3.06 3.43 37.2 3.16 3.46 41.8 3.46 3.55

10 17 20 30 40 47 50 60

MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW

10 17 20 30 40 47 50 60

MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW MBH COP kW

OUTDOOR TEMPERATURE (Deg. F)

OUTDOOR TEMPERATURE (Deg. F)

3.15 27.6 2.49 3.24 32.1 2.82 3.34 35.3 3.04 3.41 36.6 3.13 3.44 41.2 3.42 3.53

7

SYSTEM HEATING AND COOLING CAPACITIES

16 SEER — Extra High Efciency — Single Phase

With this Coil

Cooling Indoor CFM Heating

Outdoor Unit

Number ET4BF

024KB X26(C,U)-B+MB7(E,V)M 18000 24000 16 13.0 640 850 18000 24000 9.0
036KA X36(C,U)-B+MB7(E,V)M 25000 36000 16 12.5 900 1250 24000 36000 9.0
036KA X36(C,U)-C+MB7(E,V)M 25000 36000 16 12.5 900 1250 24000 36000 9.0
048KA X48(C,U)-C+MB7(E,V)M 34000 48000 16 12.5 1140 1700 31000 46000 9.0
060KA X60(C,U)-C+MB7(E,V)M 41000 55000 16 11.65 1200 1800 37000 52500 8.5

Outdoor Unit

Number ET4BF

024KB X24KB 18000 24000 16 13.0 640 850 18000 24000 9.0
036KA X36KB 25000 36000 16 12.5 900 1250 24000 36000 9.0
048KA X48KC 34000 48000 16 12.5 1140 1700 31000 46000 9.0
060KA X60KC 41000 55000 16 11.65 1200 1800 37000 52500 8.5

Air handlers and coils used in tables are designed and manufactured by NORDYNE.

See current AHRI Directory for certified combinations and ratings.
www.ahridirectory.org

Indoor Unit

Number C6BA/H-

Ind oor Unit

Number B6VMA

Low Speed

Capacity

(Btu/h)

Low Speed

Capacity

(Btu/h)

High Speed

Capacity

(Btu/h) SEER EER

With this Air Handler

Cooling Indoor CFM Heating

High Speed

Capacity

(Btu/h) SEER EER

Low
Speed
SCFM

Low
Speed
SCFM

High
Speed
SCFM

High
Speed
SCFM

Low Speed

Capacity

(Btu/h)

Low Speed

Capacity

(Btu/h)

High Speed

Capacity

(Btu/h) HSPF

High Speed

Capacity

(Btu/h) HSPF

GENERAL TERMS OF LIMITED WARRANTY

NORDYNE will furnish a replacement for any part of this product which fails in normal use and service within the
first ten years of installation, in accordance with the terms of the warranty.

For complete details of the Limited Warranty, including applicable terms and conditions, see your local installer or
contact the NORDYNE warranty department for a copy.

8000 Phoenix Parkway | O'Fallon, MO 63368-3827

Specifications and illustrations subject to change without notice and without incurring obligations. Printed in U.S.A (12/2014)

599D-1214 (Replaces 599D-1013)

www.westinghousehvac.com