Westinghouse 16 SEER, 9 HSPF ET4BF 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

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