U.S. Boiler Company V13A RO/FO, Инструкция по установке, эксплуатации и обслуживанию, Страница: 9 / 48

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3. Check that cerafelt gasket is in place on top of the
cast iron block.
4. Using screwdriver and pliers, remove the 6½" knock
out from the rear panel, AS SHOWN IN Figure 3,
Step 2.
5. Insert the canopy onto the top of the block and
fasten with the four (4) bolts and nuts provided as
shown in Figure 3, Step 3. Be sure that the canopy
tightens evenly onto the cerafelt gasket.
WARNING
DO NOT assemble canopy without cerafelt
gaskets between canopy and heat exchanger.
NOTE: The Rear Outlet Canopy is provided with
a removable cover for inspection and cleaning of
the chimney breeching, as necessary in confined
installations.
6. Before replacing jacket top panel, determine if
future access to the chimney breeching through
the canopy opening is anticipated. If so, cut along
perforated bend line to separate jacket top panel
from the rear panel as shown in Figure 3, Step 4.
Close or replace top panel and secure with sheet
metal screws removed in Step 2 above.
F.
INSTALL LIMIT RATED TEMPERATURE
SENSOR
1,
Locate Limit Sensor and Hardware Envelope
packed in Miscellaneous Parts Carton
.
2. Insert the Limit Sensor into Immersion Well until
it rests against the bottom of the well as shown in
Figure 4.
WARNING
Failure to properly install Limit Sensor may result
in property damage, personal injury or loss of life
due to elevated operating temperatures and/or
pressures.
III: INSTALLATION INSTRUCTIONS (continued)
Figure 4: Limit Sensor Insertion
Figure 5: Securing Limit Sensor
3. Securing Limit Sensor, see Figure 5.
Step a . Bend the Limit Sensor lead wires over front
edge of Immersion Well making sure that sensor
is still fully seated.
Step b.
Position Limit Sensor clip as shown in
Figure 5. Engage the hook end of the clip over
the lead wires upstream of the Immersion Well.
Step c. While sliding clip toward Immersion Well,
engage retaining ring end of sensor clip into
locking groove on Immersion Well until it snaps
into place around collar.
4. Slide rubber grommet to within 12" of connector
end of Limit Sensor wire if it is not already there.
5. Use (3) 1/4" cable clamps and (3) #8 x 1/2 sheet
metal screws to secure Limit Sensor lead wires
using pre-punched holes in side panel and jacket
front panel as shown in Figure 1.
6. Remove top right knockout on boiler control as
shown in Figure 1. Insert connector end of Limit
Sensor through knockout. Remove all slack from
lead wires and slide rubber grommet along wires
until fully seated into control knockout.
7. Carefully connect sensor into the L7224 Boiler
Control circuit board by pressing connector on
sensor unit into mating connector on circuit board
(refer to Figure 22).
G.
CONNECT SUPPLY AND RETURN PIPING TO
HEATING SYSTEM.
CLEARANCES - Hot water pipes shall have clearances
of at least ½" from all combustible construction.