Bryant 398AAZ User Manual

Bryant

Airconditioning

Indianapolis, IN
City ot indusUy, CA

TWINNING KIT FOR
GAS FURNACES

The furnace twinning kit permits two furnaces of the same
modei and size to operate as a single unit on the same duct sys
tem. Twinned furnaces may be used with Model 507C090 or 120
A-Coils and matching condensing units. The complete single
zone heating and cooling system formed is ideal for large homes
and light commercial applications.

The twinning of standard furnaces with continuous pilots (Model
394GAD) offers low system cost. Vent dampers may not be
installed when twinning two Model 394GAD furnaces.

This kit can be used to twin standard furnaces with intermittent
ignition systems—providing lower operating costs. Only these
furnaces (Model 394GAZ or 394JAZ) can be equipped with vent

A77401 dampers.

Twinning of condensing furnaces may also be accomplished
with this kit. Model 398AAZ Condensing Furnaces yield the
utmost in fuel efficiency.

The kit is not intended for heat-staging usage.

FACTORY-WIRED—All internal control box wiring is complete.

The 115-volt wiring is furnished and already connected in the
control box.

TERMINAL STRIP—The 24-volt connections from the thermo

stat, furnaces, and the twinning control box can be easily made
to terminal strips.

LIMIT CONTROLS—Two manual reset limit controls give added

protection against reverse air circulation.

TRANSFORMER—Built-in transformer provides the control

power to operate twinning control box and condensing unit
(if used).

ISOLATES TRANSFORMERS—Provides isolation of furnace

and twinning control transformers required by the National Elec
tric Code.

Twinned furnaces are the solution to heating demands greater
than a single furnace can meet.

Models 394GAD

394GAZ

394JAZ

and 398AAZ

Sizes 065 thru 150

FEATURES/BENEFITS

Form No. PDS 398A.0.2B

DIMENSIONAL DRAWING (Inches)

MODELS: 394GAD and 394GAZ

SIZE^ A D
(2)048100
(2) 048125

(2)060125 49 47-3/8 46-1/2
(2)048150 49
(2)060150 49 47-3/8 46-1/2

42
42

40-3/8 39-1/2
40-3/8 39-1/2

47-3/8

♦Size given in input MBH. .
fCommon bottom inlet must be used.

Et

46-1/2

Vent Connection

(2)5
(2)5
(2)5
(2)6
(2)6

394G and 394J Furnaces

SPECIFICATIONS

PART NUMBER
ELECTRICAL

Volts—Hertz—Phase
T ransformer (115V/24V)
External Control
Power Available Cooling
Blower Relay Contact Rating
Limit Control

RATINGS & PERFORMANCE^t

♦See the appropriate Product Data Sheet for furnace ratings and air delivery.
tDouble airflow ratings for twin applications.

Heating

DIMENSIONAL DRAWING (Inches)

MODEL: 394JAZ

SIZE^ A
(2) 048065 42 40-3/8 39-1/2 (2)4

(2) 048080 42
(2) 060080 42
(2) 060095 49

♦Size given in output MBH.
tCommon bottom inlet must be used.

D

40-3/8
40-3/8
47-3/8

Et

39-1/2
39-1/2
46-1/2

Vent Connection

(2)5
(2)5
(2)6

DIMENSIONAL DRAWING (Inches)

MODEL: 398AAZ

SiZE^ A D
(2) 048100
(2) 060100 42 40-3/8 39-1/2

(2)060120

♦Size given in output MBH.
fCommon bottom inlet must be used.

42 40-3/8 39-1/2

49 47-3/8 46-1/2

315785-701

115—60—1

40VA
28VA
28VA

(2) 12 Amps Inductive

(2) Manual Reset

Et

WA

Carrier Corporation

Bryant

Air Conditioning

Irujianapolis, IN

City of industry, CA

-2—

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

KIT AND UNITS MUST BE INSTALLED IN ACCORDANCE

Catalog No. BY-3239-803 PRINTED IN Ú.S.A.

WITH INSTALLATION INSTRUCTIONS

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