035-15266-003Rev.A(0804)
10.Flangeplateshippedwith3500-7211"ismountedtothe
furnacewitheight(8)screwsprovided.Two(2)blunt
screwsarefortheholesinthefrontofthefurnace.See
Figure12.
11.Ifupflowadapterboxkit3500-5451"isnotused,then
ouroptionalfilterbracketisprovidedwith3500-7211"kit.
Thisfilterbracketmaybeusedtoretainfilterinsideits
originallocationinthefurnace.
12.Securethetopofthefurnacetoastructuralmember
usingscrewsandthestrapontopofthefurnace.The
mobilehomemanufacturermayprovideanequivalent
strap,ifrequired,tosecurethefurnace.
13.Ifexcessivemovementisexpected,thensomeblower
supportisrecommended.
FLANGE
PLATE
(MOUNTED WITH
SCREWS)
USE BLUNT
DUCT
JCONNECTOR
LINESET
KNOCKOUT
EB SERIES
_(UPFLOW
FURNACE)
WIRING
Furnace wiring is complete except for the power supply and
the thermostat wires. See wiring diagram (or Table 2) for wire
and fuse size. See Table 2 for ground wire sizes. Thermostat
wires connect through side of furnace and should also be no
smaller than 22 gauge. Power wires can enter through the
side of the unit or through the auxiliary entrance, located in
the bottom of the unit. (See Figure 1). When bringing wiring
through the bottom of the furnace, cable connectors must be
installed to hold wiring in place and to relieve any strain on
the wiring. These connectors will also serve as a seal
between the furnace and the floor. Thus, additional sealing is
not required.
(Refer to the National Electrical Code, Canadian Electrical
Code and local codes for wiring material requirements.
NOTE:
The furnaces are equipped with either one or two 60
amp circuit breakers. These circuit breakers protect
the wiring inside of the furnace in the event of a
short circuit. Additionally, these breakers provide a
means of disconnecting the power to the unit. The
circuit breakers in the furnace are not meant to pro-
tect the branch circuit wiring between the furnace
and the home's breaker panel. General wire and
breaker sizes are shown in Table 2. If sheathed
cable is used, refer to National Electrical Code,
Canadian Electrical Code and local codes for addi-
tional requirements concerning supply circuit wiring.
Electrical Data can be found in Table 4.
IMPORTANT - All installation on field wiring must be
rated at 60°C or higher. Please refer to the wiring diagrams
on the furnace or this book for more information.
FIGURE 12 : BLOWER BRACKET AND DUCT FLANGE
ATTACHMENT
Table 2:
MODELS
Single Branch Circuit Service *
Nominal Circuit Load - AMPS
Minimum Wire Size (90° )
Minimum Wire Size (75° )
Minimum Wire Size (60° )
Ground Wire Size +
Max. Fuse (or C.B.) - AMPS
Dual Branci_ £;ircult service
Branch Circuit Load - AMPS
Branch Circuit Min. - AMPS
Minimum Wire Size (90° )
Minimum Wire Size (75° )
Minimum Wire Size (60° )
Ground Wire Size +
Max. Fuse (or C.B.) - AMPS
EB23B
94.0
#2
#1
#0
#6
125
C:K.I #1 C:K.I #Z
47.3 46.7
59.2 58.4
#6 #6
#6 #6
#4 #4
#10 #10
60 60
EB20B
84.0
#3
#2
#1
#6
110
C:K.I #1 C:K.I #Z
44.0 40.0
55.0 50.0
#8 #8
#6 #8
#6 #6
#!0 #10
60 50
EB17B
2 L__ads + 1 Ground CK [#!
70.7
#4
#3
#2
#8
90
C:K.I #1 C:K.I #Z
47.3 23.4
59.2 29.3
#6 #!0
#6 #!0
#4 #10
#!0 #10
60 30
* Requires Jumper Bars (P/N 3500-3781") - Dual Supply for U.S. Only.
Refer to National Electrical Code. Table 310-16 for Non-Sheathed Conductors.
+ Refer to National Electrical Code. Table 250-95 for Non-Sheathed Conductor Ground Wire.
EB15B
64.1
#4
#4
#3
#8
90
C:K.I #1 C:K.I #Z
44.0 20.1
55.0 25.2
#8 #!0
#6 #!0
#6 #!0
#!0 #10
60 30
I EB12BI EB10B
50.7 44.0
#6 #8
#6 #6
#4 #6
#8 #10
70 60
NOT
APPROVED
Unitary Products Group 7
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