28
2. Connect DHW (domestic hot water) piping to indirect storage water heater.
L. ZONING WITH CIRCULATORS
1. Connect the boiler to the system when using circulator zoning as shown in Boiler Piping Details.
NOTE: The boiler circulator cannot be used for a zone. It must only supply the boiler loop.
2. Install a separate circulator for each zone.
3. Connect DHW (domestic hot water) piping to indirect storage water heater.
M. MULTIPLE BOILERS
1. Connect multiple boilers as shown in Boiler Piping Details.
2. All piping shown is reverse return to assure balanced flow throughout the connected boilers.
3. Each connected boiler must have its own circulator pump to assure adequate flow.
4. Connect DHW (domestic hot water) piping to indirect storage water heater.
5. The system flow (secondary loop) must be greater than the primary (boiler) loop flow.
Water temperature above 140
o
F requires the circulator pump to run continuously and water hardness
between 5 and 7 grains. Hardness above 7 grains will damage the heat exchanger and shorten the
service life of the boiler.
PART 5 – VENTING, COMBUSTION AIR AND CONDENSATE
REMOVAL
A. INSTALLING EXHAUST VENT AND INTAKE AIR VENT
The boiler must be vented as detailed in this section. Verify that the exhaust and intake piping comply
with these instructions.
Inspect finished combustion air intake and exhaust piping thoroughly to ensure all joints are secure,
airtight, and comply with all applicable code requirements.
Failure to provide a properly installed vent system will cause severe personal injury or death.
This vent system will operate with positive pressure in the pipe. Do not connect vent connectors serving
appliances vented by natural draft into any portion of mechanical draft systems operating under positive
pressure.
Follow these venting instructions carefully. Failure to do so may result in substantial property damage,
severe personal injury, or death.
To Next Page
Loading...
Need help?
General
