Form RZ-NA-I-FT, Page 4
8. Left Side Controls
All units are factory built with controls on the right side (as
viewed when facing the heater discharge). If the installation
location requires that the controls be on the left side, follow
the steps below to change the control side.
1. Turn the heater over (180
o
)
. Turn so that the sides are
opposite but the front and rear remain the same. (Notice
that the "bottom" panel, which is now on the top of the
heater, has four suspension holes.)
2. Reverse the Louver Position
-- Remove the screws hold-
ing the louver frame. Turn the louver assembly (180
o
). Re-
install the assembly so that the louvers will direct the air
downward with the heater in its new position.
3. Sizes 60, 75, 100, 125, 150, 200, 250 and 300; Move the
Ignitor
-- Remove the control access panel. On the side of
the burner rack, remove the screws holding the spark igni-
tor and the flame sensor. Interchange the locations of the
ignitor and the flame sensor so that the ignitor will be to-
ward the bottom of the burner rack.
IMPORTANT: The
brown ground wire must stay with the spark ignitor.
4.
Turn the access panel so that the labels are in an upright
position. Re-attach the panel (NOTE: Illustrations of the
control section, except for the location of the ignitor and
the flame sensor on Sizes 60-300, will appear to be upside
down.)
9. Suspending the Heater
Before suspending the heater, check the supporting structure
to be used to verify that it has sufficient load-carrying capac-
ity to support the weight of the unit.
When the heater is lifted for suspension, support the bottom of the heater with
plywood or other appropriately placed material. If the bottom is not supported,
damage could occur.
Determine the type of suspension to be used:
•
All Sizes
- The heater is equipped with 4-pt suspension. Two 3/8"-16 nut
retainers are located on each side of the heater. See Dimensions in Paragraph
10 and illustration in Figure 3A.
•
Sizes 30, 45, 60, and 75
may be installed with 2-pt suspension. Follow the
illustrated instructions in Figure 3B.
•
Sizes 30, 45, 60, and 75
may be suspended with an optional ceiling sus-
pension kit. Refer to Figure 3C. Step-by-step instructions are included with
the option kit.
WARNING: Suspend any size of Model FT heater only
from the threaded nut retainers (Figure 3A). Or, suspend
a Size 30, 45,60, or 75 as illustrated in Figure 3B or using
the Ceiling Suspension Kit in Figure 3C. Do not suspend
from the heater cabinet panels.
WARNING: Unit must be level for proper operation. Do not
place or add additional weight to the suspended heater. Hazard
Levels, page 1.
3/8 Threaded Rod
Add a 3/8 nut
to lock the hanger
rod to the heater
Be sure that the 3/8" threaded hanger
rods are locked to the heater as
illustrated. Recommended maximum
hanger rod length is 6 feet.
Figure 3A -
Four-point
suspension on
all sizes; attach
threaded rods
to all four nut
retainers
Sizes 30/45 --
21-1/4 (540mm)
Sizes 60/75 --
23-1/4 (591mm)
17-15/16
(456mm)
9-9/16
(243mm)5/16 or 3/8 threaded rods
(maximum length above
the heater is 18/457mm )
On the bottom of the heater, use a washer
and double nuts to attach each threaded
rod. Use double nuts. Lock lower nut to
upper by holding upper nut while
tightening lower nut.
Sizes 30/45
12-1/8
(308mm)
Sizes 60/75
18-1/8
(591mm)
L
C
L
C
Figure 3B - Two-point suspension
applies to Models FT 30, 45, 60,
and 75
Size
30
45
60
75
100 125 150 200 250 300
lbs
60
66
84
90
140 145 205 215 258 280
kg
27
30
38
41
64
66
93
98
117 127
Net Weight
Suspension Angle, P/N 194931 - Attach by (1) removing ALL
screws across top edge of cabinet. (2) Position suspension angle,
aligning holes with same holes emptied in Step (1). (3) Using
ALL screws that were removed and the same
cabinet holes, attach suspension angle.
Suspension angle
attached to rear
of heater
Figure 3C - Ceiling Suspension Kit, Option CK22,
for Models FT 30, 45, 60, or 75
When suspending, use a minimum of two anchor points per
angle.
NOTES: Quantity of screws used to attach the suspension angles
will vary by heater size and from front to rear of cabinet. If
optional vertical louvers are being added, install louvers after
suspension angles are attached.