Boiler Set-Up; Water Piping And Controls; Boiler Supply And Return - Smith 70-195 Installation And Operation Instructions Manual

2. BOILER SET-UP

1. Provide a sound, level foundation. Locate boiler as
near to the chimney or outside wall as possible and
centralized with respect to the heating system.
2. Locate boiler in front of installation position before
removing crate.
3. If using combustible floor pan, position pan on
foundation or flooring.

3. WATER PIPING AND CONTROLS

A. BOILER SUPPLY AND RETURN
1. Size the supply and return to suit the system. A
typical piping arrangement is shown in Figure 3.1.
Refer also to the I=B=R Guide - Residential
Hydronic Heating Installation/Design for additional
guidance during water piping installation.
2. Return Piping:
Pipe the drain valve to a tee, provided, and the
1-1/4 NPT return tapping near the bottom of the left
section. Pipe the return to the tee. Pipe the drain
valve nipples and tee to the 1-1/4 NPT return
tapping as shown in Figure 3.1.
Figure 3.1: Supply and Return Piping
INSTALLATION AND OPERATING INSTRUCTIONS
4. Separate the wood shipping pallet from the boiler
base by removing two (2) hold-down bolts at each
end of the boiler base.
5. Move boiler into final position. If using combustible
floor pan, install boiler on pan as outlined in the
instructions included with the pan.
3. Supply Piping:
Pipe the supply to the 1-1/2 NPT supply tapping at
the top and rear of the boiler.
4. When system return water temperature will be below
130°F (54°C), pipe the boiler with a bypass
arrangement to blend the system return and hot
supply to obtain at least 130°F (54°C) entering the
boiler.
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