Model 4
1500 - 6000 MBTU/hr
Rev. 03-08
Section B2-7
Optional Equipment
For more detailed information on optional equipment, contact your local Cleaver-
Brooks authorized representative. In summary, options include the following:
1. Boiler
• Larger pressure gauges or specific manufacturer type.
• Bottom
Drain
Valves for low pressure applications.
• Bottom
Blowoff
Valves for high pressure applications.
• Surface Blowoff Valve with internal collector pipe.
• Feedwater Stop and Check Valves.
• Steam Stop Valve.
• ASME Hydro Test of Valves and Valve Piping.
• Design pressures above 150 PSIG.
2. Burner/Control Options
• Full
Modulation Firing on Gas.
• Lead/Lag Control.
• Day-Night Controls.
• Low
Fire Hold Control.
• Elapsed Time Meter.
• Alarm
with
silence switch.
• Additional Indicator Lights.
• Main
Power Disconnect.
• Remote Oil Pump.
• Optional NEMA Enclosures.
• Special Fan Motor requirements (TEFC).
3. Fuel Options
• Automatic Fuel Changeover (combination burner).
• Propane Fuel Firing.
• Special Gas Pressure Regulators.
• Special fuel shut-off valves.
• Dual
Pilots
(gas and oil).
• Gas strainer.
Insurance/Codes
The boiler package can be equipped to meet various insurance or code
requirements. Some of these insurance/code requirements are:
• Factory Mutual (FM)
• XL GAP (Formerly GE GAP/IRI).
• A.S.M.E. CSD-1.
A. Factory Mutual (FM Global)
- Recommended guidelines as described by FM
pertain to boilers rated at greater than 2.5 MMBtu/hr input on gas and 2.8 MMBtu/
hr input on oil. Boilers that are labeled and tested in accordance with an
independent testing lab such as UL or CSA and are below these inputs are exempt
from these recommendations.
The Model 4 boiler is UL listed and labeled. In addition to the standard UL
requirements the following are needed to comply with FM when required.
• Alarm
Bell
with
silence switch for low water and safety shutdowns.
• Low
Oil
Pressure Switch if the oil pump is not direct driven from the fan motor.
B. XL GAP (Formerly GE GAP/IRI)
Recommended guidelines as described by XL
GAP pertain to boilers rated at 400,000 Btu/hr input to 12.0 MMBtu/hr input. For
