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Grounding
The equipment must be grounded to reduce the risk
of static sparking and electric shock. Electric or static
sparking can cause fumes to ignite or explode.
Improper grounding can cause electric shock.
Grounding provides an escape wire for the electric
current.
Ground the heater: Ground the heater to a properly
grounded power source. Connect the ground wire to
the ground terminal. See F
1. Ensure that the electrical disconnect (AA) to the
heater is shut off and locked.
AA
F
. 4: Electrical Disconnect
IG
2. Remove the fasteners (9), washers (8), cap (7), and
o-ring (6) to access the electrical wiring
compartment.
3. Insert the supply ground wire through the electrical
wiring port (C).
4. Connect one end of the supply ground wire to the
ground terminal (10a).
NOTE: The ground terminal (10a) is a 1/4-20
thread. Torque to 75 in-lb (8.5 N•m).
5. Connect the other end of the supply ground wire to
a true earth ground.
6. Install the o-ring (6), cap (7), washers (8), and
fasteners (9). Torque fasteners (9) to 20 in-lb
(2.2 N•m). See Torque Sequence, page 22.
3A8940A
. 5.
IG
7
6
C
Torque to 75 in-lb (8.5 N•m).
1
Torque to 20 in-lb (2.2 N•m).
2
F
. 5: Ground Terminal
IG
Ground the fluid lines: Use only electrically conductive
lines with a maximum of 500 ft. (150 m) combined line
length to ensure grounding continuity. Check electrical
resistance of lines. If total resistance to ground exceeds
25 megohms, replace line immediately.
Ground the fluid supply and receiving containers:
Follow local codes and regulations.
Ground solvent pails used when flushing: Follow
local codes and regulations. Use only conductive metal
pails, placed on a grounded surface. Do not place the
container on a nonconductive surface, such as paper or
cardboard, which interrupts grounding continuity.
Installation
9
2
8
10a
1
9
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