Installation Guide

Part number 550-100-066/0608
g a s -f i r e d w at e r b o i l e r — Boiler Manual
12
Prepare boiler (continued)
 Bottom-piping configuration only (Ultra-80 to
-230 only)
See 1. Figure 11.
Remove pipe caps from bottoms of supply, return and 2.
gas lines to route piping through bottom.
Install:3.
1” pipe cap on top of return pipe (a. Figure 11,
item 7).
½” pipe cap on top of gas line (b. Figure 11, item 8)
1” x 1” x ¾” tee (c. Figure 11, item 4).
¾” steel elbow (item 5), relief valve (item 6).d.
1” x 1/8” bushing (item 9).e.
Air vent (item 10) on top of the supply pipe as f.
shown.
See instructions beginning on 4. page 14 to connect boiler
piping. Connect piping to:
1” NPT male boiler return (a. Figure 11, item 1).
1” NPT male boiler outlet (item 3).b.
½” NPT male gas (item 2).c.
DO NOT use automatic air vent on systems
with closed-type expansion tanks. Instead,
replace item 10 above with a line to the expan-
sion tank.
Prepare boiler for wall mounting
Remove the jacket front panel. This will simplify lifting and han-1.
dling the boiler when mounting.
When piping will be routed out the top of the boiler, no special 2.
preparation is needed other than that given in this manual.
Ultra-80 to -230 only: To route the piping through the bottom of 3.
the boiler enclosure:
Remove knockouts from bottom piping penetrations as shown a.
in Figure 8, page 11.
Insert grommets into the penetration holes as shown.b.
Install wall-mount bracket
Locate studs.1.
Place the wall-mount bracket on the wall, using a level to align 2.
correctly.
Place the bracket so the mounting slots are centered over the 3.
studs.
Level the bracket and trace the outline of the screw slots with a 4.
pencil.
Remove bracket and drill holes 1/4” diameter by 3 inches deep, 5.
centered on the screw slot outlines. (For metal stud walls, using
3/16” toggle bolts, drill required clearance holes.)
See 6. Figure 9, page 11. Position bracket on wall. Insert and loosely
tighten the two lag screws (or toggle bolts for metal studs).
Level the bracket. Then tighten screws securely. For drywall or 7.
plaster lathe installations, avoid tightening so much that brackets
dig into wall surface.
Place boiler on bracket
Measure 30 1.
3
/
4
inches below the bottom edge of the wall-mount
bracket for Ultra-80 to -230 (35
5
/
8
” for Ultra-310). Strike a line
or place a piece of masking tape on the wall with its top edge even
with the 30-inch mark. (This line, or tape, will indicate whether the
boiler has been properly seated onto the wall-mount bracket.)
Obtain assistance to lift the boiler into position (see 2. Fig-
ure 10, page 11):
Lift the boiler high enough that its rear bracket will be above a.
the wall-mount bracket.
Let the rear of the boiler slide against the lag screw heads as b.
you lower the boiler into place.
When the brackets are engaged correctly, the bottom of the c.
boiler enclosure will be at or near the pencil line, or tape, you
applied in step 1.
If the boiler does not slide down close to the mark, or tape, d.
adjust until the brackets properly engage.
Piping through the bottom of the boiler
Use two wrenches when tightening piping at boiler,
using one wrench to prevent the boiler pipe from turn-
ing. Failure to support the boiler piping connections to
prevent them from turning could cause damage to boiler
components.
Use the following procedure to arrange piping through the bot-1.
tom of the boiler.