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3. When lever handle type manual equipment shutoff valves
are used, they shall be T- -handle valves.
4. The use of copper tubing for gas piping is NOT approved
by the state of Massachusetts.
Refer to Table 6 for recommended gas pipe sizing. Risers must be
used to connect to furnace and to meter. Support all gas piping
with appropriate straps, hangers, etc. Use a minimum of 1 hanger
every 6 ft. (2 M). Joint compound (pipe dope) should be applied
sparingly and only to male threads of joints. Pipe dope must be
resistant to the action of propane gas.
An accessible manual equipment shutoff valve MUST be
installed external to furnace casing and within 6 ft. (2 M) of
furnace. A 1/8- -in. (3 mm) NPT plugged tapping, accessible for
test gauge connection, MUST be installed immediately upstream
Wire Lead
Furnace
2
Color
Gray
Cooling. Do not use for heating.
Yellow
Orange
0401712
Blue
Red
Gray
Cooling. Do not use for heating.
Yellow
0601716
Orange
Blue
Red
Gray
Cooling. Do not use for heating.
Yellow
0802120
Orange
Blue
Red
Gray
Cooling. Do not use for heating.
Blue
1002120
Yellow
Orange
Red
Alt cooling. Do not use for heating
1. A filter is required for each return ---air inlet. Airflow performance included 3/4 ---in. (19 mm) washable filter media such as contained in factory ---authorized
accessory filter rack. To determine airflow performance without this filter, assume an additional 0.1 ---in. W.C. available external static pressure.
2. Adjust the blower speed tabs as necessary for the proper air temperature rise for each installation.
--- --- Indicates unstable operating conditions
3. If the same motor speed tap is needed for heating and cooling, a Jumper Wire accessory kit is available (see Specification Sheet for the current Jumper
Wire accessory part number, see Function column for applicable limitations.
NOMINAL IRON
PIPE
SIZE IN. (mm)
1/2 (13)
3/4 (19)
1 (25)
1--- 1/4 (32)
1--- 1/2 (38)
* Cubic ft. of natural gas per hr for gas pressures of 0.5 psig (14 ---In. W.C.) or less and a pressure drop of 0.5 ---In. W.C. (based on a 0.60 specific gravity
gas). Ref: Chapter 6 current edition of ANSI Z223/NFPA 54.
Piping should be pressure and leak tested in accordance with
NFGC in the United States, local, and national plumbing and gas
codes before the furnace has been connected. After all
connections have been made, purge lines and check for leakage at
furnace prior to operating furnace.
14
Table 5 – Air Delivery - - CFM (With Filter)
Function
Alt Cooling or alt Heating
Heating or alt cooling
Alt Cooling or alt Heating
Alt Cooling or alt Heating
Alt Cooling or alt Heating
Alt Cooling or alt Heating
Heating or alt cooling
Alt Cooling or alt Heating
Alt Cooling or alt Heating
Alt Cooling or alt Heating
Heating or alt cooling
Alt Heating or alt cooling
Heating or alt cooling
Alt Cooling or alt Heating
Alt cooling or alt Heating
Table 6 – Maximum Capacity of Pipe*
INTERNAL
DIAMETER
In. (mm)
0.622 (16)
0.824 (21)
1.049 (27)
1.380 (35)
1.610 (41)
Specifications are subject to change without notice.
of gas supply connection to furnace and downstream of manual
equipment shutoff valve.
NOTE:
The furnace gas control valve inlet pressure tap
connection is suitable to use as test gauge connection providing
test pressure DOES NOT exceed maximum 0.5 psig (14- -In.
W.C.) stated on gas control valve. (See Fig. 32)
Install a sediment trap in riser leading to furnace as shown in Fig.
18. Connect a capped nipple into lower end of tee. Capped nipple
should extend below level of furnace gas controls. Place a ground
joint union between furnace gas control valve and exterior
manual equipment gas shutoff valve. A 1/8- -in. (3 mm) NPT
plugged tapping, accessible for test gauge connection, MUST be
installed immediately upstream of gas supply connection to
furnace and downstream of manual equipment shutoff valve.
Test Airflow Delivery @ Various External Static Pressures
External Static Pressure (IN. W.C.)
0.1
0.2
0.3
0.4
1535
1495
1455
1415
1100
1055
1005
955
695
645
585
510
935
885
830
775
570
455
380
310
0.1
0.2
0.3
0.4
1720
1680
1635
1585
1470
1425
1385
1335
1305
1255
1215
1160
1040
940
890
835
1135
1090
1035
985
0.1
0.2
0.3
0.4
2185
2135
2085
2035
1885
1830
1780
1730
1565
1500
1440
1385
1365
1295
1230
1165
1205
1045
965
895
0.1
0.2
0.3
0.4
2230
2180
2120
2060
1945
1885
1830
1770
1835
1775
1720
1655
1535
1470
1395
1325
1095
1060
1020
985
LENGTH OF PIPE --- FT. (M)
10
20
175 (53)
120 (37)
360 (110)
250 (76)
680 (207)
465 (142)
1400 (427)
950 (290)
2100 (640)
1460 (445)
If pressure exceeds 0.5 psig (14- -In. W.C.), gas supply pipe must
be disconnected from furnace and capped before and during
supply pipe pressure test. If test pressure is equal to or less than
0.5 psig (14- -In. W.C.), turn off electric shutoff switch located on
furnace gas control valve and accessible manual equipment
0.5
0.6
0.7
0.8
1370
1320
1280
1235
905
855
800
740
450
390
325
270
720
655
595
540
250
180
110
---
0.5
0.6
0.7
0.8
1545
1505
1455
1405
1290
1245
1200
1160
1115
1070
1025
975
790
740
675
620
940
895
845
790
0.5
0.6
0.7
0.8
1990
1935
1880
1825
1675
1625
1575
1520
1330
1275
1220
1170
1100
1045
985
925
815
745
650
595
0.5
0.6
0.7
0.8
2005
1945
1880
1815
1715
1650
1585
1525
1595
1530
1470
1410
1265
1205
1140
1080
950
915
880
845
30
40
97 (30)
82 (25)
200 (61)
170 (52)
375 (114)
320 (98)
770 (235)
660 (201)
1180 (360)
990 (301)
441 01 1501 04
0.9
1.0
1190
1145
680
625
215
155
490
430
---
---
0.9
1.0
1355
1305
1110
1060
925
870
565
525
730
675
0.9
1.0
1770
1715
1470
1420
1115
1055
845
780
540
480
0.9
1.0
1755
1700
1465
1405
1350
1285
1015
955
805
770
50
73 (22)
151 (46)
285 (87)
580 (177)
900 (274)
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