International comfort products H8UH5050B12C2 Installation Instructions Manual page 17

11. Measure pipe length from gas meter or Propane second stage
regulator to determine gas pipe size.
Left Side Gas Supply Piping
Gas line can be installed directly to the gas valve through the hole
provided in the left side of the cabinet. See Figure 13
Right Side Gas Supply Piping
Two(2) 90° street elbows or two(2) 90° standard elbows and two(2)
close nipples are required for right side gas supply. See Figure 13.
Piping with Street Elbows
1. Assemble the elbows so that the outlet of one(1) elbow is 90°
from the inlet of the other. The elbows should be tight enough to
be leak proof. An additional
step 2, see Figure 14.
Figure 14
Elbows
2. Screw elbow assembly into gas valve far enough to be leak
proof. Position elbow assembly so that the inlet of the elbow is
at the bottom of the gas valve. An additional
required in step 3. Turn open end of inlet elbow to face the right
1
side of the furnace ( / turn), see Figure 15.
4
Figure 15
Gas Valve with Elbows
Representative drawing only, some models may vary in appearance.
3. Turn assembly an additional
top of the gas valve in line with gas opening on right side of
furnace, see Figure 16.
441 01 5003 01
1
/ turn will be required at the end of
4
25--23--23c
1
/ turn will be
2
25--25--03
3
/ turn to position inlet near the
8
Specifications are subject to change without notice
Figure 16
Gas Valve with Elbows
Representative drawing only, some models may vary in appearance.
4. Gas supply line then can be run directly into opening of elbow.
Piping with Close Nipples and Standard Elbows
1. Assemble elbows and nipples similar to street elbows shown in
Figure 14.
2. Follow steps 2 through 4 of Piping with Street Elbows.
!
FIRE OR EXPLOSION HAZARD.
Failure to follow this warning could result in personal
injury, death and/or property damage.
A flexible corrugated metal gas connector must be
properly installed, shall not extend through the side
of the furnace, and shall not be used inside the
furnace.
Black iron pipe shall be installed at the furnace gas
valve and extend a minimum of 2" (50.8mm) outside
furnace.
Additional Propane Piping Requirements
Have a licensed Propane gas dealer make all connections at
•
storage tank and check all connections from tank to furnace.
If copper tubing is used, it MUST comply with limitation set in
•
local codes, or in the absence of local codes, the gas codes of
the country having jurisdiction.
Two--stage regulation of Propane gas is recommended.
•
WARNING
!
FIRE OR EXPLOSION HAZARD.
Failure to follow this warning could result in
personal injury, death and/or property damage.
A natural gas or Propane gas leak ignited by an open
flame or spark could result in personal injury, death
and/or property damage.
Natural gas is lighter than air and will rise. Propane
gas is heavier than air and will settle and remain in
low areas and open depressions.
Thoroughly ventilate area and dissipate gas. Do
NOT use a match or open flame to test for leaks, or
attempt to start up furnace before thoroughly
ventilating area.
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