Electrostatic Discharge (Esd) - Lennox G40DF(X)-24A-045 Installation Instructions Manual

MANUAL
MAIN SHUT-OFF
VALVE
(With 1/8 in. NPT
Plugged Tap Shown)
GROUND
JOINT
UNION
Left Side Piping
(Standard)
AUTOMATIC
GAS VALVE
(with manual
shut-off valve /
FIELD
PROVIDED
DRIP LEG AND INSTALLED
AUTOMATIC
GAS VALVE
(with manual
shut-off valve)
MANUAL
MAIN SHUT-OFF
VALVE
(With 1/8 in. NPT
Plugged Tap
Shown)
GROUND
JOINT
UNION
DRIP LEG
FIGURE 13
Leak Check
After gas piping is completed, carefully check all piping
connections (factory- and field-installed) for gas leaks, Use
a leak detecting solution or other preferred means,
ACAUTION
Right Side Piping
(Alternate)
ELECTROSTATIC DISCHARGE (ESD)
Precautions and Procedures
The furnace must be isolated from the gas supply system
by closing its individual manual shut-off valve during any
pressure testing of the gas supply system at pressures less
than or equal to 1/2 psig (3.48 kPa, 14 inches w.c.).
kCAUTION
klMPORTANT
The unit is equipped with a field make-up box, The make-
up box may be moved to the right side of the furnace to fa-
cilitate installation. Secure the excess wire to the existing
harness to protect it from damage.
MANUAL MAIN "_-
SHUT-OFF VALVE
WILL NOT HOLD ._
NORMAL TEST '_
PRESSURE _,p !
CAP /
ISOLATE
GAS VALVE
\
FURNACE
FIGURE 14
MANUAL MAIN
SHUT-OFF VALVE
WILL NOT HOLD
NORMAL TEST
PRESSURE |
CAP
ISOLATE
GAS VALVE
\
FURNACE
FIGURE 15
INTERIOR MAKE-UP BOX INSTALLATION
MAKE-UP
BOX
FIGURE 16
Page 19