71
107750-01 - 9/17
Model Size
Max. (Natural & LP),
in. wc
Min. (Natural),
in. wc
Min. (LP),
in. wc
320-399
14.0 (3.5 kPa)
3.5 (0.88 kPa)
8.0 (2.0 kPa)
Table 8.2: Minimum and Maximum Inlet Pressures
VIII. Gas Piping
(continued)
CAUTION
Support the weight of the gas line piping independently from the boiler gas connection fitting located on the
left side of the boiler.
If an additional regulator is used to reduce boiler inlet pressure below 1/2 psig (3.5 kPa) it must be at least 6
to 10 ft. upstream of the boiler.
It is very important that the gas line is properly purged by the gas supplier or utility company.
Figure 8.1: Gas Connection to Boiler
Содержание ASPEN ASPN-320
Страница 11: ...11 107750 01 9 17 IV Locating the Boiler continued Figure 4 1 Minimum Clearances To Combustible Construction ...
Страница 13: ...13 107750 01 9 17 Figure 5 1 Wall Layout Mounting Hole Location V Mounting The Boiler continued ...
Страница 88: ...88 107750 01 9 17 Figure 10 4 Proper Installation of Header Sensor X Wiring continued ...
Страница 89: ...89 107750 01 9 17 Figure 10 5 Internal Wiring Ladder Diagram X Wiring continued ...
Страница 90: ...90 107750 01 9 17 X Wiring continued CONDENSATE FLOAT SWITCH ...
Страница 91: ...91 107750 01 9 17 X Wiring continued Figure 10 6 Internal Wiring Connections Diagram ...
Страница 100: ...100 107750 01 9 17 Operating Instructions XI Start Up and Checkout continued ...
Страница 145: ...145 107750 01 9 17 XV Service Parts continued ...
Страница 147: ...147 107750 01 9 17 XV Service Parts continued All Models ...
Страница 149: ...149 107750 01 9 17 XV Service Parts continued All Models ...
Страница 151: ...151 107750 01 9 17 XV Service Parts continued All models ...
Страница 157: ...157 107750 01 9 17 ...
Страница 158: ...158 107750 01 9 17 ...
Страница 159: ...159 107750 01 9 17 ...
Страница 160: ...160 107750 01 9 17 U S Boiler Company Inc P O Box 3020 Lancaster PA 17604 1 888 432 8887 www usboiler net ...