Advertisement
-_
Tab{e8--Maximum AllowableVent PipeLength(Ft) Continued
ALTITUDE
UNiT S_ZE
VENT PIPE
DIAMETER
(BN.)
1-1/2
2
040-08
040-12
060-08
036060
060-I6
080-12
080-16
080-20
100-16
100-20
120-20
1
42
57
2
37
55
5
25
49
NUMBER
OF 90 ° ELBOWS
3
4
32
27
53
51
38
33
14
9
53
51
5
NA
44
39
35
33
6
2O
47
2
45
40
31
29
9001 to 10,000t
2
30
25
7
NA
2-1/2
57
55
49
47
2-1/2
21
13
NA
NA
3
54
49
34
29
3*
39
37
31
29
* Wide radius elbow
? Vent sizing for Canadian
installations
over 4500 ft (1370 m) above sea level are subject to acceptance
by the local authorities
having jurisdiction.
NA--Not
Allowed;
pressure
switch will not make
NOTES:
1. Do not use pipe size greater than those specified
in table or incomplete
combustion,
flame disturbance,
or flame sense lockout may occur.
2. Assume
two 45 ° elbows
equal one 90 ° elbow
Long radius elbows
are desirable
and may be required in some cases
3. Elbows and pipe sections within the furnace casing and at the vent termination
should not be induded
in vent length or elbow count.
4. The minimum
pipe length is 5 fl for all applications
....
FIELD 24-V WIRING
....
FIELD 115-, 208/230-,
460-V WIRING
--
FACTORY 24-V WiRiNG
--
FACTORY
115-V WIRING
24-V
TERMINAl
BLOCK
FURNACE
WiRE
NOTES:
1. Connect YZterminal in furnace as shown for proper blower operation.
2. Some thermostats
require a "C" terminal
connection
as shown.
3.
if any of the original wire, as supplied,
must be replaced,
use
same type or equivalent
wire.
Fig. 30--Typical
Heating and Cooling
Application
Wiring Diagram
A02174
2. Humidifier
(HUM)
A quick-connect
terminal
(HErM)
and screw
terminal
((oM
24°v) are provided
for 24-v humidifier
connection
(See Fig
33) HUM terminal
is energized
with 24v (0.5-amp
maximum)
when
gas valve is energized
NOTE:
A field=supplied,
115-v
controlled
relay
connected
to
EAC tem_inals
may be added
if humidifier
operation
is desired
dttring blower
operation
Step
9--Venting
The 5SMSA
Furnaces
require
a dedicated,
(one
58MSA
t\mlace
only) sealed
vent system.
All air for combustion
is taken t'rom the
area adjacent
to t\_rnace,
and
all flue
gases
are
discharged
to
outdoor
atmosphere.
The
venting
system
shall
be
installed
in
accordance
to these
inst_,_ctions.
REMOVAL
OF EXISTING EL RNACES FROM
(OMMON
VENT SYSTEMS
When an existing
< ategory
I furnace
is removed
or replace&
the
original
venting
system
may no longer
be sized
to properly
vent
the remaining
attached
appliances
An improperly
sized
(ategory
I venting
system
could
cause
the formation
of condensate
in the
£t_rnace and vent, leakage
of condensate
and combustion
products,
spillage
of combustion
products
into the living
space,
etc.
27
Advertisement
