HTP 850 LPHL - Manual (Page 23)

23
LP- 205 REV. 3.28.14
Figure 11 – Cascaded Boilers – Space Heating
FIGURE NOTES:
1. This drawing is meant to demonstrate system piping concept only.
2. Installations must comply with all local codes.
3. Install a minimum of 12 diameters of straight pipe upstream of all circulators.
4. Piping shown is Primary/Secondary.
5. Reference Multiple Boiler Manifold Piping chart, Part 5, Section H.
PART 5 – VENTING, COMBUSTION AIR AND CONDENSATE REMOVAL
The boiler must be vented as detailed in this Venting Section. Ensure exhaust and intake piping complies with these instructions
regarding vent system. Inspect finished combustion air intake and exhaust piping thoroughly to ensure all joints are well secured,
airtight, and comply with all applicable code requirements, as well as with the instructions provided in this manual. Failure to properly
install the vent system will result in property damage, severe personal injury, or death.