BOILER CONTROLS AND BURNERS
General Requirements: Only natural gas equipment is eligible for incentives. Equipment added to boilers fueled by electric, propane, or oil is NOT eligible for incentives. Equipment added to redundant or backup boilers does not qualify.
OUTSIDE AIR RESET/CUTOUT CONTROLS Requirements: • Outside air temperature boiler reset and cutout control incentives are for retrofit projects only. New boilers equipped with these controls do not qualify. • System must have an outdoor temperature sensor installed in a shaded location on the north side of the building. • System must be set up so the minimum temperature is less than 10°F above boiler manufacturer’s recommended minimum return temperature (unless unusual circumstances require a higher setting). • For controls on multiple boilers to qualify, control strategy must stage the lag boiler(s) only after the first boiler stage(s) fail to maintain the water temperature called for by the reset control. • Provide input capacity of boilers (in MBh) controlled with outside air reset and cutout controls per the example below. • Must be a central plant type arrangement that serves multiple dwelling units in the multifamily building.
EQUIPMENT UPGRADES AND RETROFITS Measure Description
Code
Incentive
Unit
Outside Air Reset/Cutout Controls
H2221
$70.00
Control
EXAMPLE Outside Air Reset / Cutout Controls Use this example when applying for outside air resent/cutout controls that also requires boiler capacity in MEh. Reference the table when filling out section 7 on the Incentive Application.
Total Incentive (A x B)
Incentive Code Manufacturer Name
Model
Unit Measure # of Units (A)
Incentive per Unit (B)
H2221
ABC Controls
OA1234
Control
1
$70.00
$70.00
—
—
Boiler Capacity
MBh
500
—
—
BOILER COMBUSTION UPGRADES Requirements: • Boiler must be natural gas-fired, forced-draft boiler used for space heating that operates a minimum of 4,000 hours per year. • Installation on redundant or backup boilers does not qualify for an incentive. • Boiler input capacity must be entered in boiler horsepower (BHP). To convert, use 1 BHP = 33.476 MBh. High turndown burner must be able to provide efficient combustion at a 10:1 turndown ratio or greater. The turndown ratio must be clearly shown on a manufacturer’s spec sheet or similar documentation. • High turndown burner incentives (H2203 and H5237) are eligible on boilers ≤ 1,000 BHP. Boilers > 1,000 BHP may be eligible for custom incentives. • Invoices must be attached and include the manufacturer name and model number of linkageless controls, O 2 trim, and high turndown burner equipment. • Must be a central plant type arrangement that serves multiple dwelling units in the multifamily building.
EQUIPMENT UPGRADES AND RETROFITS Measure Description
Code
Incentive
Unit
Linkageless Controls
H2205
$18.00
BHP
O 2 Trim Controls
H2206
$5.00
BHP
High Turndown Burner, Retrofit on Existing Boiler
H2203
$12.00
BHP
High Turndown Burner, New Boiler Replacement
H5237
$12.00
BHP
Incentive amount is limited to 50% of the project cost, including equipment and external labor.
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