d.Temperature and pressure gauge
2.The boiler(s) shall be equipped with an
G.Firing Mode
1.For models 992BE, provide
2.For models
H.Boiler Diagnostics
1.Provide external LED panel displaying the following boiler status/faults:
a.Power on – Blue
b.Call for heat – Amber
c.Flow – Green
d.Stages
e.Fans
f.Ignition fault – Red
g.Safety fault – Red
2.Provide internal circuit board with fault history, indicating the following safety faults by LED signal:
a.System status
b.Manual reset high limit
c.Auto reset high limit (optional)
d.Low water
e.Blocked vent
f.Low gas pressure switch
g.High gas pressure switch (optional)
h.Controller alarm (optional)
i.Flow switch
j.Air pressure
k.Factory option
l.External interlock
m.Cold Water Start/Cold Water Run (optional)
n.Ignition
3.A Central Point Wiring board with diagnostic LED’s indicating the status of each relay.
4.Provide ignition module indicating the following flash codes by LED signal and displayed on LCD display:
a.1 flash – low air pressure
b.2 flashes – flame in the combustion chamber w/o CFH
c.3 flashes – ignition
d.4 flashes – low hot surface igniter current
e.5 flashes – low 24VAC
f.6 flashes – internal fault (replace module)
I.Combustion Chamber: The lightweight, high temperature,
J.Venting
1.When routed vertically, the boiler’s flue material and size shall meet or exceed the requirements specified for Category II in the National Fuel Gas Code, ANSI Z223.1/NFPA 54 latest edition.
2.When routed horizontally, the boiler(s) flue material and size shall meet or exceed the requirements as specified for Category III in the National Fuel Gas Code, ANSI Z223.1/NFPA 54 latest edition.
3.The boiler(s) shall be ducted combustion air ready.
K.Cabinet
1.The
Project Name / Date | Division 23 52 33.13 - 3 |