Unitary Products Group
11
035-15266-003 Rev. A (0804)
HIGH PERFORMANCE BLOWER ACCESSORY
PACKAGE
All EB furnaces are already equipped with a blower and con-
trol system to add-on air conditioning up to 4-tons and heat
pump up to 3 1/2-tons. If the requirement is to achieve more
than specified than the production blower inside the furnace
would have to be replaced with an accessory blower package
3500-7901*. This accessory blower package would deliver air
conditioning up to 5-tons, and heat pump up to 4-tons. Acces-
sory package (3500-7901*) includes blower, insulation, coil
shelf, trap, clamps, etc. Please refer to the installation instruc-
tions packed with the accessory package for more informa-
tion.
WIRING DIAGRAMS
All areas around the line sets, drain hoses and other
openings in the coil shelf should be sealed air tight.
Use some moldable compound or caulking to seal
the area. Failure to do so may result in loss of per-
formance and premature compressor failure.
FIGURE 17 :
EB10B WIRING DIAGRAM
3A
LINE
LOAD
2
4
5
6
1
3
*
NOTE:
IF ANY OF THE ORIGINAL WIRE SUPPLIED
WITH THIS UNIT MUST BE REPLACED. IT
MUST BE REPLACED WITH TYPE 105°C
THERMOPLASTIC OR ITS EQUIVALENT.
FACTORY WIRING SHOWN SOLID. FIELD
WIRING SHOWN BROKEN.
MODEL: EB10B
4-SPEED BLOWER
EB SERIES FURNACES
BLEND AIR
CONTROL BOX
HEAT/COOL
T’STAT
COND. UNIT
CONTACTOR
MOTOR
TRANSFORMER
FUSE
BLOWER
RELAY
2 SPADE (INSUL.) TERMINALS
USED WHEN CHANGING SPEEDS
SEQUENCER
CIRCUIT #1
BREAKER
ELEMENTS
LIMIT
SWITCHES
GND.
LUG
240 VAC.
60 Hz
1 PHASE
SINGLE BRANCH
CIRCUIT SERVICE
R
R
H2
H1
M3
M4
M1
M2
60
AMP
YEL
YEL
ORG
ORG
BLU
YEL
YEL
YEL
GRN
ORG
YEL
BLK
BLK
BLK
RED
RED
WHT
GRN
WHT
RED
BLK
G
W
RH
Y
BRN
ORG
CAPACITOR
BLU-MED.
HIGH
SP
.
YEL-MED.
LOW
S
P
.
BLK-COOLING
S
P
.
RED-HEA
TING
SP
.
ORG-COMMON.
D.O.E. OUTPUT CAPACITY - BTU
34,000
MAX. MOTOR-FLA
4.0
SINGLE BRANCH
CIRCUIT SERVICE
2 LEADS + 1 GROUND
NOMINAL CIRCUIT LOAD-AMPS
44.0
WIRE SIZE (75° C) COPPER
WIRE SIZE (60° C) COPPER
#6
#6
MAX. FUSE SIZE (OR CB) - AMPS
60
240 VAC - 60 Hz - 1 PHASE
WIRING MUST CONFORM TO LOCAL CODES
APPROVED FOR CU CONDUCTORS ONLY.
L
L
