Figure 28: Multiple Boilers, Primary / Secondary - Thermal Solutions ARCTIC Series Installation & Operation Manual

1000 model shown.
Inlet/Outlet Connections
are different on the 1500-
6000 models.
1500-3000 model shown.
Inlet/Outlet Connections
are similar on the 3500-
6000 models.
68
Thermal Solutions, 1175 Manheim Pike, Lancaster, PA 17601 Website: www.thermalsolutions.com
Figure 28: Multiple Boilers, Primary / Secondary Piping
Inlet/Return
Expansion Tank
Isolation Valve
Inlet/Return
Expansion Tank
Isolation Valve
Phone: 717-239-7642 Fax: 877-501-5212 Email: sales@thermalsolutions.com
4D Max
4D Max
Air Vent
Purge Valve
Boiler Circulator
Check Valve
Y-Strainer
Air Vent
Purge Valve
System Circulator
Outlet/Supply
Makeup Water
Check Valve
Pressure Reducing Valve
Boiler Circulator
Check Valve
Y-Strainer
System Circulator
Outlet/Supply
Makeup Water
Check Valve
Pressure Reducing Valve
NOTICE NOTICE
1. These are suggested piping configurations.
It is the installer's responsibility to conform
to local codes and ordinances for additional
requirements.
2. Pressure relief valve rating shall not exceed
pressure rating of any component in the system.
3. Some piping components cannot be supported
by the pipping. Refer to the manufactures'
installation instructions.
4. Circulation pump must be sized to overcome the
pressure drop across the entire loop.