Weil-McLain 94 Series Manual page 22

Weil-McLain 94 Series 3 Water and steam boilers —
Complete block assembly & install jacket
DO NOT loosen the tie rod nuts when installing
jacket brackets. Brackets are attached using separate
fasteners.
Install front and rear jacket panel
brackets
1. See Figure 27.
2. Install jacket brackets on the tie rod lugs of the front and
rear sections as shown in inset A and inset B of Figure 27.
a. Front section brackets must point toward the front. Rear
section brackets must point toward the rear.
b. Slide one slot of the bracket over the tie rod.
c. Secure each bracket using the provided
washer and Tinnerman nut as shown.
d. Install a bracket to each side tie rod lug and two on the
top tie rod lug, totalling four brackets the front section
and four brackets on the back section.
Install front and rear jacket panels
1. Place the right front jacket panel against the right side of
the front section, with the jacket flanges over the mounting
brackets.
2. Secure with a #10 x ½" type A sheet metal screw on the right
side and top into the two brackets.
3. Set the left front jacket panel in place and secure in the same
way.
Make sure the jacket panels have had all necessary
knockouts removed and all holes are properly
aligned.
4. Secure the left and right front panels together with the #10
x ½" screws provided.
5. Use the same procedure to install the jacket rear panels. Start
with the left side panel, then the right side panel.
Install brackets and side panel splice
channels
(1094–2594)
1. Side panel brackets are not required for boiler sizes 894 and
994. Skip to the next section. See the following for 1094
through 2594 boilers.
2. See Figure 27.
3. Larger boilers use multiple side panels, requiring splice chan-
nels as shown in Figure 27.
a. Each splice channel is attached to the brackets with four
screws as shown.
b. Boilers 1094 through 1894 require one set of splice chan-
nels. Boilers 1994 through 2594 require two sets.
4. The brackets that secure the splice channels mount to the
tie rod lugs as shown in Figure 27, using 5/8"-11 N.C. hex
nuts supplied.
a. Locate the brackets on the sections specified in Figure 26.
b. Brackets must be oriented as shown, with their edges
point at one another. DO NOT loosen the existing tie
rod nuts.
22
for Gas, Light Oil, & Gas/Light Oil-Fired Burners
c. When completed, there will be four brackets on each
Figure 26
Boiler
1094
5 ⁄ " x 1 1 ⁄ " screw,
1194
16 2
1294
1394
1494
1595
1694
1794
1894
1994
2094
2194
2294
2394
2494
2594
5. Attach the left and right splice channels to the splice channel
brackets using two (2) #10 x ½" type A sheet metal screws
provided.
6. Attach the top splice channel to the brackets and to the two
side splice channels using eight (8) #10 x ½" type A sheet
metal screws provided.
Install side and top jacket panels
1. Attach jacket side panels to front and rear panels and splice
channels using #10 x ½" type A sheet metal screws provided.
2. For boilers with tankless heaters or tankless heater openings
in the sections, make sure to install the side panels with heater
openings on the correct side.
3. After jacket side panels are in stalled, install the jacket top
panels using #10 x ½" type A sheet metal screws provided.
section listed in Figure 26.
Place support brackets as listed below
(sections are numbered from back to front) (see
Figure 27)
Install brackets on
sections:
5 & 6
5 & 6
4 & 5
6 & 7
7 & 8
7 & 8
7 & 8
8 & 9
9 & 10
7 & 8
7 & 8
7 & 8
7 & 8
7 & 8
9 & 10
9 & 10
DO NOT stand on the jacket at any time. Jacket
panels will be damaged.
(continued)
Install brackets on
sections:
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—
—
—
—
—
—
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—
12 & 13
13 & 14
14 & 15
15 & 16
16 & 17
17 & 18
18 & 19
Part No. 550-110-275/1018