11
Suburban DynaPack S & H Series Owner's Manual 06/2020 Rev.2
2.4 AIR FILTER
The Dynapack unit is equipped with a permanent, cleanable air filter. This filter can be used if the unit is installed so that the filter is
accessible to the homeowner. The permanent filter installed inside the unit must be removed and discarded if a disposable filter is installed
in the return air duct. See Table 7 for the minimum filter area required for the Dynapack unit based on unit capacity. It is recommended
that air filters be cleaned or replaced monthly to keep the cooling coil and interior duct surfaces clean and able to operate most efficiently.
Optional MERV 13 filters are available.
MINIMUM REQUIRED SURFACE AREA FOR DISPOSABLE FILTERS
MODEL NUMBER
FILTER AREA
DYPA12
288 square inches
DYPA18
288 square inches
DYPA24
480 square inches
DYPA30
480 square inches
Table 7
2.5 GAS PIPING
The Dynapack unit has a ½” pipe connection for the gas line. The size of the gas piping must be based on the length of the run and not
the connection size. See Table 8 for reference pipe sizing.
Consult with the local gas utility or code authority for gas piping installation.
If local codes allow the use of a flexible gas appliance connector, always use a new listed connector. Do not use a connector which has
previously serviced another gas appliance.
The gas piping should contain a manual shut off valve with test port near the furnace in addition to a drip leg and a ground joint union for
servicing. The test port needs to be upstream of the manual shut off valve for leak testing and adjusting the supply pressure regulator.
The manual shut off valve must be rated for the gas piping test pressure. If not, then the shut off valve must be removed from the piping
system during testing. Once the gas piping up to the shut off valve has been tested, the remaining piping to the unit gas valve must be
tested. Do not exceed ½ psig or 14” water column for this test or the gas valve may be damaged.
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
(Based on a 0.60 Specific Gravity Gas)
Nominal
Iron Pipe
Size, Inches
Internal
Diameter,
Inches
LENGTH OF PIPE (Feet)
10
20
30
40
50
60
70
80
90
100
125
150
175
200
1/4
.364
32
22
18
15
14
12
11
11
10
9
8
8
7
6
3/8
.493
72
49
40
34
30
27
25
23
22
21
18
17
15
14
1/2
.622
132
92
73
63
56
50
46
43
40
38
34
31
28
26
3/4
.824
278
190
152
130
115
105
96
90
84
79
72
64
59
55
1
1.049
520
350
285
245
215
195
180
170
160
150
130
120
110
100
1 - 1/4
1.380
1,050
730
590
500
440
400
370
350
320
305
275
250
225
210
1 - 1/2
1.610
1,600
1,100
890
760
670
610
560
530
490
460
410
380
350
320
2
2.067
3,050
2,100 1,650 1,450 1,270 1,150 1,050
990
930
870
780
710
650
610
2 - 1/2
2.469
4,800
3,300 2,700 2,300 2,000 1,850 1,700 1,600 1,500 1,400 1,250 1,130 1,050
980
3
3.068
8,500
5,900 4,700 4,100 3,600 3,250 3,000 2,800 2,600 2,500 2,200 2,000 1,850 1,700
4
4.025
17,500 12,000 9,700 8,300 7,400 6,800 6,200 5,800 5,400 5,100 4,500 4,100 3,800 3,500
Table 8
CAUTION
Suburban Applied Products does not recommend the use of flex tubing to make the gas connections to the unit
unless the flex tubing is a high quality stainless certified by CSA and approved for use by local code.
WARNING
A pipe thread compound resistant to the action of natural gas must be used on all pipe joints.
WARNING
The gas valve supplied with this furnace is rated at 1/2 psig maximum. Any higher pressure may rupture the
pressure regulator diaphragm and may cause over firing of the burners and improper burner operation. The
over firing may result in the creation of carbon monoxide which could cause asphyxiation.
