Watts AERCO Edge CFR 3000 Operator's And Service Manual page 4

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FOREWORD
The AERCO CFR Boiler utilizes a breakthrough Condensing-Proof technology that maintains dry flue gas
while exceeding efficiency standards. It delivers high performance of up to 86% thermal efficiency–
helping engineers, contractors and owners comply with the latest energy conservation mandates.
The CFR Boiler achieves this efficiency while safely reusing existing Category I/Type B venting, allowing
for cost-friendly solution in retrofit projects. With a 3000MBH input, it can be operated with natural gas
and has a turndown of up to 3:1 to match a building's heating load and Low NOx emissions down to
20ppm NOx.
Unless otherwise specified:
● All descriptions in this document apply to the CFR Series of boiler.
● All measurements apply to natural gas models.
The CFR operates within the input and output ranges listed below.
CFR Boiler Input and Output Ranges
MODEL
MINIMUM
CFR 3000 1,000,000
The output of the boiler is a function of the unit's firing rate (valve position) and return water
temperature.
When installed and operated in accordance with this Instruction Manual, the CFR 3000 complies with
the NOx emission standards outlined in South Coast Air Quality Management District (SCAQMD), Rule
1146.2. The CFR 3000 complies with the Bay Area Air Quality Management District regulation 9, Rule 7.
The CFR gas-fired boiler is a fan-assisted, hydronic-heating unit with the following venting capabilities:
1. Room Combustion Air, Vertical Discharge
2. Ducted Combustion Air, Vertical Discharge
WARNING: It is critical for safe operation that the flue gas vent be designed to prevent condensation
in the vent. Condensation can occur in the CFR boiler, so units are fitted with a condensate removal
trap, with an air inlet, vent connections, and condensate removal connection. With its advanced
technology, the CFR boiler delivers dry flue gas for safe exhaust into Category I venting.
Please consult the CFR Boiler Venting and Combustion Air Design Guide (TAG-0105) for a list of
allowable and preferred vent materials.
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INPUT RANGE (BTU/HR.)
MAXIMUM
3,000,000
•
GROSS OUTPUT (BTU/HR.)
MAXIMUM
2,580,000
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