Weil-McLain 2 Series Manual page 12

®
SlimFit Series 2
Prepare boiler
Placing the boiler
1. Roll the boiler down the ramp and move the boiler into position. Use
only the jacket corner posts to manipulate the boiler.
2. The piping end casters are swivel type. The burner end casters are fixed.
3. Adjust the leveling legs down until they are firmly in contact with the
floor.
4. Continue adjusting the legs down until all the bottom of the boiler base
is 5¼ inches above the floor.
5. Check level. Extend mounting legs further as needed until the boiler
is level.
The boiler should not be allowed to rest on the casters. These
are intended for moving the boiler into position only. The
support legs must be extended to take the load of the boiler.
Bolting the boiler to mounting blocks
1. For applications requiring that the boiler be bolted down (such as
earthquake zone requirements), remove the casters and bolt the boiler
base to mounting blocks using the existing holes in the base.
2. See Figure 8 for details.
The mounting blocks must position the boiler with at least
5¼ inches between the bottom of the boiler base and the
floor.
Follow all applicable codes and recognized engineering
design practices to verify that the final mounting will meet
all seismic, structural and other requirements.
Boiler relief valve and P/T gauge
setting for the SlimFit boiler. The boiler is shipped with a
30 PSIG relief valve. See Replacement parts in the back of
this manual for alternate pressure setting relief valves.
The boiler is shipped with a ¼" NPT pressure and tempera-
ture gauge which has a pressure range up to 75 psig. This
gauge meets ASME requirements up to a relief valve setting
of 50 psig. For higher pressure rated relief valves, a different
pressure and temperature gauge with a higher pressure range
is required. When installing a gauge that requires a larger
tapping than the ¼" NPT tapping in the boiler supply mani-
fold, provide an additional tapping in the near boiler piping
BEFORE any isolation valve.
12
COMMERCIAL CONDENSING GAS
(continued)
. This is the maximum allowable relief valve
- — Boiler Manual
FIRED WATER BOILER
Removing the casters to allow bolting the
boiler to mounting blocks
Perform hydrostatic pressure test
Pressure test boiler before permanently attaching water or gas
piping or electrical supply.
Weil-McLain hydrostatically pressure tests
each SlimFit boiler in the factory to 1½ times
maximum allowable working pressure per ASME
Section IV requirements.
A pressure test should be performed on site to
1½ times the pressure setting of the relief valve
to be installed on the unit (45 psig for a 30-psig
relief valve; 75 psig for a 50-psig relief valve; or
150 psig for a 100-psig relief valve).
Prepare boiler for pressure test
1. See Figure 9, page 13 for reference in following steps. Use
pipe dope sparingly.
2. At the boiler supply and return flanges, temporarily attach
a 3-inch ANSI blind flange with tapping for a nipple and
valve as shown (flanges, valves, gaskets nipples supplied
by installer).
SF10006
Part number 550-100-180/0917