Carrier 58MVP Installation, Start-Up, And Operating Instructions Manual page 16

3 "
"
1
24 /
2
1 "
FILTER
FILTER
RETAINER
SUPPORT
Fig. 19—Bottom Filter Arrangement
FRONT FILLER
PANEL
Fig. 20—Removing Bottom Closure Panel
FIELD-SUPPLIED
FILTER FILLER
STRIP FOR
1
17 ⁄ -IN. WIDE
2
CASINGS ONLY.
INSTALL UNDER
FILTER.
WASHABLE
FILTER
A93321
BOTTOM
CLOSURE
PANEL
A93047
16
Table 2—Maximum Capacity of Pipe*
NOMINAL
IRON INTERNAL
PIPE DIAMETER
SIZE (IN.)
(IN.)
1/2 0.622
3/4 0.824
1 1.049
1-1/4 1.380 1400
1-1/2 1.610 2100
* Cubic ft of gas per hr for gas pressures of 0.5 psig (14-in. wc) or less, and a
pressure drop of 0.5-in. wc (based on a 0.60 specific gravity gas). Ref: Table
10-2 NFPA 54-1992.
Connect gas pipe to furnace using a backup wrench to avoid
damaging gas controls.
Gas valve knob MUST be facing forward or tilted upward.
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.
Use proper length of pipe to avoid stress on gas control
manifold. Failure to follow this warning could result in a gas
leak resulting in fire, explosion, personal injury, or death.
Install a sediment trap in riser leading to furnace. Trap can be
installed by connecting a tee to riser leading to furnace so
straight-through section of tee is vertical. Then connect a capped
nipple into lower end of tee. Capped nipple should extend below
level of gas controls. Place a ground joint union between gas
control manifold and manual gas shutoff valve. (See Fig. 21.)
GAS
SUPPLY
MANUAL
SHUTOFF
VALVE
SEDIMENT
TRAP
UNION
Fig. 21—Typical Gas Pipe Arrangement
LENGTH OF PIPE (FT)
10 20 30 40
175 120 97 82
360 250 200 170
680 465 375 320
950 770 660
1460 1180 990
A93324
50
73
151
285
580
900