Greenwood Frontier CX, Installation And Operation Manual

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PLUMBING INSTALLATION
© 2013 Greenwood Clean Energy, Inc All Rights Reserved V1.9 Page 27
Nonstandard Installs
Q: If the Frontier CX is installed without the factory mounted Hydronic Conditioning Manifold and Overheat
Cooling Kit what piping and components are required?
The Frontier CX Hydronic Conditioning Manifold and ThermSafe
TM
Overheat Cooling Kit simplifies the
installation by including many of the components that typically must be installed in the boiler loop. The
Hydronic components are custom designed for the Frontier Series, factory calibrated and preset to ensure
optimum performance.
For the rare situation in which the Frontier CX is installed without the install package (this will void the
warranty without prior approval in writing from Greenwood Clean Energy), the installer must design, source,
and install components to meet the following requirements:
Hydronic System Functionality
Frontier CX
with install
package
Without
install
package
Requirements
Frontier Series Boiler Control System
 
Outlet temperature monitoring
 
Inlet temperature monitoring
 
Flow switch cabling
 
ThermSafe
TM
Overheat Cooling
connection ready
 
On-Demand Zone connection ready
 
Boiler loop circulation

X
Taco 007 circulator or equivalent UL rated
cirulator and piping to ensure 10 GPM (+- 2
GPM) flow rate
Flow rate stability

X
Hydraulic separation of boiler and
distribution loops
Air elimination

X
Air vent
Pressure relief

X
Atmosheric venting, pressure relief valve
Fluid fill

X
Boiler drain
Low temperature protection

X
Thermostatic 3-way 1" mixing valve
Cavitation protection

X
Boiler loop design that ensures sufficient
head at the circulator inlet
Low fluid protection

X
McDonnel & Miller FS-251 flow switch or
equivalent UL rated device
Power failure and overheat protection

X
Taco 1" normally open Zone Sentry valve,
power supply, gravity loop design, and
piping