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You as the owner/user should inspect the unit periodically during the
heating season. Particular attention should be given to the following:
A. Periodically observe the main burner flame to assure it is burning with a hard
blue flame with well-defined burner ports. (See Figure 16.) If flame appears
yellow or burner has a lazy flame, shut furnace down and contact a qualified
service person.
B. Periodically inspect the vent for obstructions or presence of soot. Soot is
formed whenever combustion is incomplete. This is your visual warning that
the furnace is operating in an unsafe manner. If soot is present, immediately
shut furnace down and contact your dealer or a qualified service person.
C. Circulating air through the front grille must not be blocked. Keep filter clean to
assure adequate air flow.
The removable, washable type filter should be cleaned or replaced several
times during the year. This will depend upon the usage and location of the unit.
Dirty filters restrict air flow across the heat exchanger and coils. This results
in inadequate cooling and shortens the life expectancy of the heat exchanger,
motors and compressor.
FILTER REMOVAL
1. The filter is located behind the cabinet front. Remove cabinet front by lifting
up. Slide filter up until free of left tab.
2. Filter may be washed in a soapy solution and rinsed in clear water. Let filter
dry before reinstalling it on the unit.
3. Reinstall filter.
NOTE: NEVER OPERATE UNIT WITH FILTER REMOVED. Evaporator coil and/
or drain pan may become restricted.
4. Reinstall cabinet front.
CLEANING CONDENSER COIL
NOTE: Work should be performed by a qualified service person.
NOTE: Use a coil cleaner recommended by one of these manufacturers:
Nu Calgon, Rector Seal
NOTE: Make sure gas and electrical supply is "OFF to unit.
1. Remove cabinet front. Remove four(4) screws from left and right side panels;
set aside for reinstallation.
2. Remove unit from wall sleeve.
3. After unit is removed, move to an open area.
4. To begin process of cleaning the condenser coil, remove the following screws:
a) Remove four(4) screws from condenser housing braces. (see A figure 17)
Set braces aside for reinstallation.
b) Remove condenser coil cover- (2) additional screws. (see B figure 17) Set
aside for reinstallation.
5. Motor should be covered during cleaning.
6. Be sure to follow the manufacturers instructions in the use and disposal of
their products.
7. Apply the cleaning solution to the coil by trickle method across the top of the
coil until solution runs from drain.
8. The coil can then be cleaned with a water hose by back washing it until all dirt
is drained from weep holes in the chassis. Unit should be tilted back so water
will drain to the back. Allow unit to air dry.
9. Reassemble condenser coil cover and braces.
10. Reinstall unit into wall sleeve.
11. Reinstall cabinet front.
NOTE: After unit is reinstalled, check for gas leaks and verify proper operation in
heat and A/C modes.
Maximum Capacity of Pipe in Cubic Feet of Gas per Hour for Gas Pressures of 0.5 PSIG or Less and a Pressure Drop of 0.3 Inch Water Column
Nominal
Internal
Iron Pipe
Diameter,
Size, in Inches
in Inches
10
1/4
.364
32
3/8
.493
72
1/2
.622
132
3/4
.824
278
1
1.049
520
1 - 1/4
1.380
1,050
1 - 1/2
1.610
1,600
2
2.067
3,050
2 - 1/2
2.469
4,800
3
3.068
8,500
4
4.025
17,500
Suburban DynaLine Owner's Manual 10/2017 Rev.1
(Based on a 0.60 Specific Gravity Gas)
20
30
40
50
22
18
15
14
49
40
34
30
92
73
63
56
190
152
130
115
350
285
245
215
730
590
500
440
1,100
890
760
670
2,100
1,650
1,450
1,270
3,300
2,700
2,300
2,000
5,900
4,700
4,100
3,600
12,000
9,700
8,300
7,400
Listed below are several safety related items that you should follow during the
heating season to assure continued safe operation of the furnace.
1. Never operate the unit if you smell gas. Do not assume that the smell of gas is
normal. Any time you detect the odor of gas, it is to be considered life threatening
and corrected immediately. (See safety notice on front cover of this manual.)
2. Immediately shut unit down and call a service agency if unit cycles erratically
or delays on ignition.
WARNING!
Should overheating occur, or the gas supply fail to shut off, shut off the
manual gas valve to the appliance before shutting off the electrical supply.
3. Do not restrict the flow of combustion air or the warm air circulation to the unit.
To do so could cause personal injury and/or death.
WARNING!
Do not install screens over the vent for any reason. Screens will become
restricted and cause unsafe furnace operation.
4. Keep unit clean. More frequent cleaning may be required due to excessive lint
from carpeting, bedding material, etc. It is imperative that control compartments,
burners and circulating air passageways of the appliance be kept clean.
5. Keep the furnace area clear of any combustible materials, gasoline or other
flammable vapor and liquids.
6. Do not use this appliance if any part has been submerged under water.
Immediately call a qualified service technician to inspect the appliance and
to replace any part of the control system and any gas control that has been
submerged under water.
7.
Always follow the operating instructions. Do not deviate from the step-by-step procedures.
8. Never attempt to repair damaged parts. Always have them replaced by a
qualified service agency.
9.
Never attempt to repair the furnace yourself. Seek the help of a qualified service person.
10. The room air motor, the condenser motor and the combustion air motor are
maintenance free motors and require no oiling.
GENERAL NOTES
The efficiency rating of this unit is a product thermal efficiency rating determined
under continuous operating conditions and was determined independent of any
installed system.
Children and adults should be alerted to the hazards of high surface
temperatures and should stay away to avoid burns or clothing ignition.
Young children should be carefully supervised when they are in the same
room as the unit.
Clothing or other flammable material should not be placed on or near
the unit.
Any safety screen or guard removed for servicing the unit must be
replaced prior to operating the unit.
Installation and repairs should be done by a qualified service person.
The appliance should be inspected before use and at least annually by a
qualified service person. More frequent cleaning may be required due to
excessive lint from carpeting, bedding material, etc. It is imperative that
control compartments, burners and circulating air passageways of the
appliance be kept clean.
Never operate unit with filter removed. Evaporator coil and/or drain pan
may become restricted.
LENGTH OF PIPE, Feet
60
70
80
90
12
11
11
10
27
25
23
22
50
46
43
40
105
96
90
84
195
180
170
160
400
370
350
320
610
560
530
490
1,150
1,050
990
930
1,850
1,700
1,600
1,500
3,250
3,000
2,800
2,600
6,800
6,200
5,800
5,400
TABLE 2
6
100
125
150
175
9
8
8
7
21
18
17
15
38
34
31
28
79
72
64
59
150
130
120
110
305
275
250
225
460
410
380
350
870
780
710
650
1,400
1,250
1,130
1,050
2,500
2,200
2,000
1,850
5,100
4,500
4,100
3,800
200
6
14
26
55
100
210
320
610
980
1,700
3,500
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