Gas Piping - Carrier 58MSA Installation, Start-Up, And Operating Instructions Manual

A 3-IN. MINIMUM
CLEARANCE TO
COMBUSTION-AIR INTAKE
IS REQUIRED.
ANGLE
IRON OR
EQUIVALENT
(B)
(A) ROD LOCATION
USING DIMPLE
LOCATORS
(SEE DIMENSIONAL
DWG FOR
LOCATIONS)
(A) PREFERRED ROD LOCATION
(B) ALTERNATE ROD LOCATION
WASHABLE
FILTER
Fig. 20—Filter Installed for Side Inlet
Step 7—Gas Piping
Gas piping must be installed in accordance with national and local
codes. Refer to current edition of NFGC. Canadian installations
must be made in accordance with NSCNGPIC and all authorities
having jurisdiction. Gas supply line should be a separate line
running directly from meter to furnace, if possible. Refer to Table
2 for recommended gas pipe sizing. Risers must be used to connect
COMBUSTION-AIR
INTAKE
(B)
(A)
3
/ -IN. HEX NUT (A)
8
& WASHER (4)
REQD PER ROD
NOTES:
Fig. 19—Crawlspace Horizontal Application
FILTER
RETAINER
A93045
17
VENT
"
3
5 ⁄
4
DRAIN
(A)
(B)
13
/ -IN. MAX
16
(B)
ALTERNATE SUPPORT
LOCATION FROM BACK
1. A 1 In. clearance minimum between top of
furnace and combustible material.
2. The entire length of furnace must be
supported when furnace is used in
horizontal position to ensure proper
drainage.
3. Bottom side combustion-air entry cannot
be used when furnace is installed with
hangers as shown.
to furnace and to meter. Support all gas piping with appropriate
straps, hangers, etc. Use a minimum of 1 hanger every 6 ft. Joint
compound (pipe dope) should be applied sparingly and only to
male threads of joints. Pipe dope must be resistant to propane gas.
Connect gas pipe to furnace using a backup wrench to avoid
damaging gas controls.
Gas valve ON and OFF switch MUST be facing forward or
tilted upward. (See Fig. 40.) Failure to follow this warning
could result in property damage or death.
Never purge a gas line into a combustion chamber. Never use
matches, candles, flame, or other sources of ignition for
purpose of checking leakage. Use a soap-and-water solution
to check for leakage. A failure to follow this warning could
result in fire, explosion, personal injury, or death.
3
⁄ -IN. ROD
8
ALTERNATE SUPPORT
LOCATION 4-IN. MIN
8-IN. MAX
A96209