Propane Gas Tanks And Circulating Air And Filters; Ilters Ead His Ection; Pright Nstallations; Circulation Air Filters - Goodman *MH8 Installation Instructions Manual

C C C C C A A A A A
I R I R I R I R I RC U L C U L C U LA A A A A T I N G C U L C U L T I N G T I N G T I N G T I N G I R I R I R I R A N D I R
Sizing Between Second Stage and Appliance Regulator*
Maximum Propane Capacities listed are based on 2 psig pressure drop at 10 psig setting.
Capacities in 1,000 BTU/hour.
Pipe or
Tubing Size, O.D. Type L
Tubing
Length,
3/8" 1/2" 5/8" 3/4"
Feet
10 39 92 199 329
20 26 62 131 216
30 21 50 107 181
40 19 41 90 145
50 18 37 79 131
60 16 35 72 121
80 13 29 62 104
100 11 26 55 90
125 10 24 48 81
150 9 21 43 72
200 8 19 39 66
250 8 17 36 60
C C C C C A A A A A
I R I R I R I R I RC U L C U LA A A A A TING C U L C U L TING TING I R I R I R I R I R A N D A N D A N D
C U L TING TING A N D A N D
N
EVER ALLOW THE PRODUCTS
,
MONOXIDE TO ENTER THE RETURN
.
SUPPLY
Duct systems and register sizes must be properly designed for the
CFM and external static pressure rating of the furnace. Ductwork
should be designed in accordance with the recommended meth-
ods of "Air Conditioning Contractors of America" Manual D.
A duct system must be installed in accordance with Standards of
the National Board of Fire Underwriters for the Installation of Air
Conditioning, Warm Air Heating and Ventilating Systems. Pamphlets
No. 90A and 90B.
A closed return duct system must be used, with the return duct
connected to the furnace. NOTE:
tached to the back of the furnace. For installations requiring more
than 1800 CFM, use a bottom return or two sided return. Supply and
return connections to the furnace may be made with flexible joints
to reduce noise transmission. To prevent the blower from inter-
fering with combustion air or draft when a central return is used, a
connecting duct must be installed between the unit and the utility
room wall. A room, closet, or alcove must not be used as a return air
chamber.
When the furnace is used in connection with a cooling unit, the
furnace should be installed in parallel with or on the upstream side
of the cooling unit to avoid condensation in the heating element.
With a parallel flow arrangement, the dampers or other means used
to control the flow of air must be adequate to prevent chilled air
from entering the furnace and, if manually operated, must be
equipped with means to prevent operation of either unit unless the
damper is in the full heat or cool position.
When the furnace is installed without a cooling coil, it is recom-
mended that a removable access panel be provided in the outlet air
duct. This opening shall be accessible when the furnace is installed
and shall be of such a size that the heat exchanger can be viewed
for visual light inspection or such that a sampling probe can be
inserted into the airstream. The access panel must be made to pre-
vent air leaks when the furnace is in operation.
F F F F F
A N D A N D A N D A N D I L I L I L I LT E R S I L T E R S T E R S T E R S T E R S
Nominal Pipe Size
Schedule 40
7/8" 1-1/8" 1/2" 3/4" 1"
501 935 275 567 1,071
346 630 189 393 732
277 500 152 315 590
233 427 129 267 504
198 376 114 237 448
187 340 103 217 409
155 289 89 185 346
138 255 78 162 307
122 224 69 146 275
109 202 63 132 252
100 187 54 112 209
93 172 48 100 185
F F F F F
I L I L I L I L I LTERS TERS TERS
TERS TERS
WARNING
,
OF COMBUSTION INCLUDING CARBON
DUCT WORK OR CIRCULATION
NOTE: NOTE: Ductwork must never be at- NOTE:
NOTE:
When the furnace is heating, the temperature of the return air
entering the furnace must be between 55°F and 100°F.
When a furnace is installed so that supply ducts carry air circulated
1-1/4" 1-1/2"
by the furnace to areas outside the space containing the furnace,
2,205 3,307
the return air shall also be handled by a duct sealed to the furnace
1,496 2,299
1,212 1,858 casing and terminating outside the space containing the furnace.
1,039 1,559
91 1,417
F F F F F - R - R - R
- R - R
ILTERS ILTERS EAD EAD
ILTERS ILTERS ILTERS EAD EAD EAD
834 1,275
724 1,066
A A A A A D D D D D
IR IR IR IR IR UCTWORK UCTWORK UCTWORK
UCTWORK UCTWORK
630 976
567 866
511 787
Filters must be used with this furnace. Discuss filter maintenance
439 665
with the building owner. Filters do not ship with this furnace, but
390 590
must be provided by the installer. Filters must comply with UL900
or CAN/ULCS111 standards. If the furnace is installed without filters,
the warranty will be voided.
NO NOTE: NO TE: TE: An undersized opening will cause reduced airflow. The TE:
NO NO TE:
bottom return is set up as a knock out.
AIR
U U U U U I I I I I
PRIGHT PRIGHT PRIGHT PRIGHT PRIGHT NSTALLATIONS NSTALLATIONS NSTALLATIONS NSTALLATIONS NSTALLATIONS
Depending on the installation and/or customer preference, differ-
ing filter arrangements can be applied. Filters can be installed in
the central return register or a side panel external filter rack kit
(upflows), or the ductwork above a downflow furnace. As an alter-
native, a media air filter or electronic air cleaner can be used as the
primary filter.
C C C C C A A A A A
IRCULATION IRCULATION IRCULATION IRCULATION IRCULATION
One of the most common causes of a problem in a forced air heat-
ing system is a blocked or dirty filter. Circulating air filters must be
inspected monthly for dirt accumulation and replaced if necessary.
Failure to maintain clean filters can cause premature heat exchanger
failure.
A new home may require more frequent replacement until all con-
struction dust and dirt is removed. Circulating air filters are to be
installed in the return air duct external to the furnace cabinet.
MINIMUM FILTER SIZES for DISPOSABLE FILTERS
FURNACE INPUT
45M
70M
90M
115M
140M
DISPOSABLE NOMINAL 300 F.M. FACE VELOCITY
H H H H H I I I I I
ORIZONTAL ORIZONTAL ORIZONTAL ORIZONTAL ORIZONTAL NSTALLATIONS NSTALLATIONS NSTALLATIONS NSTALLATIONS NSTALLATIONS
Filters must be installed in either the central return register or in the
return air duct work.
S S S S S
EQUENCE O F EQUENCE EQUENCE EQUENCE EQUENCE O F O F O F O F
Refer to Timing Charts for sequencing.
NOTE: NOTE: NOTE: Dip switch positions referenced in this section applies to NOTE: NOTE:
*(M,D)H8 models only.
P P P P P U U U U U

OWER

OWER OWER OWER OWER P P P P P
•
115 VAC power applied to furnace.
20
T T T T T S S S S S B B B B B I I I I I
HIS HIS ECTION ECTION EFORE EFORE NSTALLING NSTALLING
HIS HIS HIS ECTION ECTION ECTION EFORE EFORE EFORE NSTALLING NSTALLING NSTALLING
F F F F F
IR IR IR IR IR ILTERS ILTERS ILTERS ILTERS ILTERS
FILTER SIZE
O O O O O (I (I (I (I (I
PER PER PERA A A A A TION PER PER TION TION TION TION NTEGR NTEGR NTEGR NTEGRA A A A A TED NTEGR TED TED TED TED
T T T T T R R R R R
HE HE ETURN ETURN
HE HE HE ETURN ETURN ETURN
2
320 in
2
483 in
2
640 in
2
800 in
2
738 in
I I I I I C C C C C ) ) ) ) )
GNITION GNITION GNITION GNITION GNITION ONTRO L ONTR ONTR ONTR ONTR O L O L O L O L