Weil-McLain SlimFit 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
DO NOT install a relief valve with a pressure higher
than 100 PSIG
valve 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 tem-
perature 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 manifold, provide an additional tapping in
the near boiler piping BEFORE any isolation valve.
12
commercial condensing gas
(continued)
. This is the maximum allowable relief
— Boiler Manual
-
fired water boiler
Figure 8
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 at-
tach a 3-inch ANSI blind flange with tapping for a nipple
and valve as shown (flanges, valves, gaskets nipples
supplied by installer).
3. Attach a water supply and hand pump to the lower
valves.
4. Attach a drain line to the upper valve.
SF10006
Part number 550-100-561/0224