Building heat
The heating-water loop can feed hot-water coils in air-handling units (AHUs). The coil transfers heat to the airstream, and the water returns to the plant.
Benchmark boiler service · NYC
Built for demanding plants.
Straightforward to service.
AERCO Benchmark boilers serve some of the most demanding commercial heating systems. We love working on them for their robust construction, straightforward service access, and the dependable heat they deliver.
Troubleshooting recurring faults
Find what’s making the fault come back.
When the same alarm returns after service, we compare the fault history with what the building was calling for and which boilers, pumps, and valves were running at the time. That helps us spot a problem that may have been missed during a previous visit.
01
Read the history.
Review the alarm, when it occurs, the boiler model, and the work already done. Available C-More or Edge controller records help establish what happened.
02
Trace it through the plant.
Check the boiler and the connected pumps, valves, sensors, and controls that can affect the symptom.
03
Verify the repair.
Check operation under the conditions that triggered the fault when we can reproduce them. Document the findings and any follow-up.
What that looks like on a service call
- Recurring lockout
- Identify where in the cycle it occurs. Depending on the alarm, we may look at airflow, ignition, flame detection, or condensate drainage.
- Cold air-handler coil
- Review pump operation, valve position, water flow, and supply and return temperatures to see whether heat reaches the coil.
- One boiler does most of the work
- Compare run times, sequencing, and header sensor readings to see how the boilers respond as the load changes.
Preventive maintenance
Know what was checked.
Removable panels make the Benchmark straightforward to inspect. We plan the visit around the applicable AERCO schedule, the condition of the unit, and how the building uses the plant.
- Air and ignition
- Inspect the air path, filter, igniter, and flame detector as applicable.
- Condensate and heat exchanger
- Check the trap and neutralizer where fitted. Plan fireside and waterside inspections around the service schedule for that model.
- Controls and verification
- Review alarms and operating readings. Perform combustion and safety checks within the agreed service scope and record the readings and follow-up work.
Commercial boiler-room design & installation
Seven boilers. Three kinds of demand.
Benchmarks can modulate their output and stage together to match changing demand. In the illustration, red shows heating-water supply, blue shows return, and silver shows boiler venting. Pumps circulate heating water and an air separator helps remove air from that loop.
Domestic hot water
AERCO SmartPlate plate-and-frame exchangers transfer heat from the boiler loop to the building’s potable water through separate circuits.
Critical loads
A dedicated branch can serve equipment that needs dependable heat. We review its flow, temperature, control priorities, and backup needs as part of the plant scope.
Illustrated plant concept. Equipment selection, piping, and controls depend on each building’s loads and project design.
Benchmark equipment walkthrough
From assembly to a running plant.
Follow our wrench mascot through plant layout, an open-cabinet inspection, and startup. The equipment photos come from AERCO’s Benchmark 2.0 LN manual and our field work.
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01 · Build the room
Make the plant fit.
Plan how the boilers, pumps, headers, venting, and condensate drainage fit together. Leave space for the next service visit.
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02 · Check the equipment
Look inside the cabinet.
Our field photo shows the blower and the pleated K&N filter beneath it. During service, we check the air path and the components specific to that model.
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03 · Bring it online
Watch the plant respond.
During qualified startup, the team follows the applicable AERCO manual, records operating readings, and checks safety and sequencing within the commissioning scope.
Serving all five boroughs
Tell us what keeps happening.
Share the model and serial number, the fault code, when it occurs, and what’s already been repaired. Let us know what the plant serves and whether one boiler or the entire room is affected.
AERCO manufacturer resources
Use the manual that matches your boiler’s model, serial number, and controller.