Install Instructions

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3. Alpine (ALP) boilers have factory supplied
Miscellaneous Part Carton (P/N 101777-01 -
ALP080B thru ALP210B; 101777-02 - ALP285B;
1012942-03 - ALP399), which includes gas piping
components to connect boiler gas valve to gas
supply system. Install these components prior to
connecting boiler to gas supply system piping as
follows:
a. Locate and remove either ½” NPT x 6” long
black nipple and ½” NPT external gas shutoff
valve (ALP080B thru ALP210B), or ¾” NPT x
6” long black nipple and ¾” NPT external gas
shutoff valve (ALP285B thru ALP399).
b. Feed the appropriate nipple through factory
installed jacket left side panel grommet (refer
to Figure 1A or 1B for gas supply connection
identication) and screw the nipple into boiler
gas valve inlet port.
c. Mount the appropriate external gas shutoff valve
onto the threaded nipple end outside of the jacket
left side panel.
d. Install sediment trap, ground-joint union and
manual shut-off valve upstream of mounted
factory supplied manual shut-off valve. See
Figure 42.
4. All above ground gas piping upstream from manual
shut-off valve must be electrically continuous and
bonded to a grounding electrode. Do not use gas
piping as grounding electrode. Refer to National
Electrical Code, NFPA 70.
Table 23: Specic Gravity Correction Factors
Specic
Gravity
Correction
Factor
Specic
Gravity
Correction
Factor
0.60 1.00 0.90 0.82
0.65 0.96 1.00 0.78
0.70 0.93 1.10 0.74
0.75 0.90 1.20 0.71
0.80 0.87 1.30 0.68
0.85 0.81 1.40 0.66
B. Connect boiler gas valve to gas supply system.
CAUTION
The gas valve and blower will not support
the weight of the piping. Do not attempt to
support the weight of the piping with the
boiler gas valve.
Ensure that the high gas pressure regulator
is at least 6 to 10 feet upstream of the boiler.
It is very important that the gas line is
properly purged by the gas supplier or
utility company.
WARNING
Failure to use proper thread compounds on all
gas connectors may result in leaks of ammable
gas.
WARNING
Gas supply to boiler and system must be
absolutely shut off prior to installing or servicing
boiler gas piping.
1. Use methods and materials in accordance with local
plumbing codes and requirements of gas supplier. In
absence of such requirements, follow National Fuel
Gas Code, NFPA 54/ANSI Z223.1, and/or CAN/
CSA B149.1 Natural Gas and Propane Installation
Code.
2. Use thread (joint) compounds (pipe dope) resistant
to action of liqueed petroleum gas.
Figure 42: Recommended Gas Piping
VII. Gas Piping (continued)