Install Instructions

72 103448-08- 9/16
Install these components prior to connecting boiler
to gas supply system piping as follows:
a. Locate and remove either ½ in. NPT x 6 in. long
black nipple and ½ in. NPT external gas shutoff
valve (ALP080B through ALP210B), or ¾ in.
NPT x 6 in. long black nipple and ¾ in. NPT
external gas shutoff valve (ALP285B only).
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 26.
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 19: 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.
WARNING
Explosion Hazard. Failure to use proper
thread compounds on all gas connectors
may result in leaks of ammable gas.
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, ANSI Z223.1/NFPA 54
and/or Natural Gas and Propane Installation Code,
CAN/CSA B149.1.
2. Use thread (joint) compounds (pipe dope)
resistant to action of liqueed petroleum gas.
3. Alpine boilers have factory supplied
Miscellaneous Part Carton (P/N 101777-01
- ALP080B through ALP210B; 101777-02 -
ALP285B), which includes gas piping components
to connect boiler gas valve to gas supply system.
Figure 26: Recommended Gas Piping
VII. Gas Piping (continued)
Boiler
Model
No.
Natural/LP
Gas Max.
Pressure
(in. w.c.)
Natural Gas
Min. Pressure
Inlet to Gas
Valve
(in. w.c.)
LP Gas
Min.
Pressure
Inlet to Gas
Valve
(in. w.c.)
ALP080B
14.0 4.0 11.0
ALP105B
ALP150B
ALP210B
ALP285B
Table 20: Min./Max. Pressure Ratings