PIPING AND CONTROLS
3. PIPING AND CONTROLS
Do not pipe boiler before jacket is NOTICE installed.
A.PRESSURE TEST BLOCK ASSEMBLY
1.Make up cold water supply connection to the boiler.
2.Install pressure gauge or
3.Plug all open tappings in the boiler and fill with water. Apply approximately thirty (30) psig pressure. Check to make certain that all joints and fittings are water tight.
4.After all joints and connections have been proven tight, remove cold water supply and plugs from all tappings that are to be used. See Figure 7.1 (Section 7) for tapping locations.
B.BOILER RETURN CLEARANCE
Return piping must allow for opening and closing Burner Mounting Plate. PB Heat, LLC suggests installing a
EQUALIZER
FRONTREAR
Figure 3.1: Steam Boiler Piping,
HEADER
EQUALIZER
RISERS
FRONTREAR
Figure 3.2: Steam Piping,
C.STEAM BOILER PIPING
1.Refer to the Steam Installation Survey and Hydronics Institute Residential Hydronic Heating Installation/Design Guide for guidance.
2.See Figures 3.1 and 3.2. The return from system should always enter equalizer through Hartford Loop, 2" to 4" below normal water line (see dimensional drawing for normal water line).
3.See Table 3.1 for pipe size information.
4.Use swing joints to attach header to avoid damage to the boiler due to thermal expansion and contraction of steam header pipe.
5.Pipe the steam header a minimum of 24" above the normal water line using swing joints to attach the risers into the steam header.
Table 3.1: Steam Pipe Sizing
Boiler Model No. | Risers | Header | Equalizer |
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3" | |||
3" | |||
3" | |||
3 | |||
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|
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6
