Goodman AMH8 Service Instructions Manual page 33

PRODUCT DESIGN
Sizing Between Second or Second Stage Regulator & Appliance*
Maximum Propane Capacities listed are based on 1/2" W.C. pressure drop at 11" W.C. setting.
Capacities in 1,000 BTU/hour.
Pipe or
Tubing Tubing Size, O.D. Type L
Length
Feet 3/8" 1/2" 5/8" 3/4"
10 39 92 199
20 26 62 131
30 21 50 107
40 19 41 90
50 18 37 79
60 16 35 72 1,211
80 13 29 62
100 11 26 55
125 10 24 48
150 9 21 43
200 8 19 39
250 8 17 36
*Data in accordance with NFPA pamphlet No. 54
Propane Gas Piping Charts
When installing a propane storage tank, the contractor must
consider proper tank sizing, safety, efficiency, ground char-
acteristics and aesthetics. For a residential customer, the
size may range from 100-1,000 gallons, depending on
household use. Typically, a 500 gallon tank is ample for an
average four-bedroom home. However, it is best to consult
your local propane supplier to ensure the proper sizing for
propane storage requirements. Determining the correct tank
size for each household is a function of demand, economy,
efficiency and convenience. It is a process that requires
cooperation between the propane supplier and customer.
ELECTRICAL CONNECTIONS
T
O AVOID THE RISK OF ELECTRICAL SHOCK, WIRING TO THE UNIT MUST BE
PROPERLY POLARIZED AND GROUNDED.
HIGH VOLTAGE
D ALL
ISCONNECT POWER BEFORE SERVICING OR
M
INSTALLING THIS UNIT. ULTIPLE POWER SOURCES MAY
F
BE PRESENT. AILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE, PERSONAL INJURY OR DEATH.
L
ABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS.
W
IRING ERRORS CAN COUSE IMPROPER AND DANGEROUS OPERATION.
V
ERIFY PROPER OPERATION AFTER SERVICING.
WIRING HARNESS
The wiring harness is an integral part of this furnace. Field
alteration to comply with electrical codes should not be re-
quired. Wires are color coded for identification purposes.
Nominal Pipe Size
Schedule 40
7/8" 1/2" 3/4" 1" 1-1/4" 1-1/2"
329 501 275 567 1,071 2,205
216 346 189 393 732 1,496
181 277 152 315 590 1,212
145 233 129 267 504 1,039
131 198 114 237 448 913
187 103 217 409 834
104 155 89 185 346 724
90 138 78 162 307 630
81 122 69 146 275 567
72 109 63 132 252 511
66 100 54 112 209 439
60 93 48 100 185 390
WARNING
WARNING
CAUTION
Refer to the wiring diagram for wire routings. If any of the
original wire as supplied with the furnace must be replaced,
it must be replaced with wiring material having a tempera-
ture rating of at least 105° C. Any replacement wiring
must be copper conductor.
115 VOLT LINE CONNECTIONS
3,307
Before proceeding with electrical connections, ensure that
2,299
1,858
the supply voltage, frequency, and phase correspond to
1,559
that specified on the unit rating plate. Power supply to the
1,417
furnace must be N.E.C. Class 1, and must comply with all
1,275
1,066
applicable codes. The furnace must be electrically
976
grounded in accordance with local codes or, in their ab-
866
787
sence, with the latest edition of The National Electric Code,
665
ANSI NFPA 70 and/or The Canadian Electric Code CSA
590
C22.1.
Use a separate fused branch electrical circuit containing
properly sized wire, and fuse or circuit breaker. The fuse
or circuit breaker must be sized in accordance with the
maximum overcurrent protection specified on the unit rat-
ing plate. An electrical disconnect must be provided at
the furnace location.
NOTE: Line polarity must be observed when making field
connections.
Connect hot, neutral, and ground wires as shown in the
wiring diagram located on the unit's blower door. Line po-
larity must be observed when making field connections.
Line voltage connections can be made through either the
right or left side panel.
E
DGES OF SHEET METAL HOLES MAY BE SHARP.
WHEN REMOVING HOLE PLUGS.
NOTE: Wire routing must not interfere with circulator
blower operation, filter removal, or routine maintenance.
T
O AVOID THE RISK OF ELECTRICAL SHOCK, INJURY, OR DEATH, THE
FURNACE MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH LOCAL
CODES OR, IN THEIR ABSENCE, WITH THE LATEST EDITION OF THE
N E
ATIONAL LECTRIC
CAUTION
U
SE GLOVES A PRECAUTION
WARNING
C
ODE.
33