BOILER CONTROLS AND BURNERS
General Requirements: Controls and burners must be added to central plant boilers that serve multiple dwelling units in a multifamily building. OUTSIDE AIR RESET/CUTOUT CONTROLS Requirements: • 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(s) 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.
Measure Description
Code H2221
Rebate
Unit
Outside Air Reset/Cutout Controls
$100
Control
EXAMPLE Reference the table when filling out section 7 on the Rebate Application.
MANUFACTURER NAME
UNIT MEASURE
REBATE PER UNIT (B)
TOTAL REBATE (A X B)
CODE
MODEL
# OF UNITS (A)
H2221
ABC Controls
OA1234
Control
1
$100
$100
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. • Boiler input capacity must be entered in boiler horsepower (BHP). To convert, use 1 BHP = 33.476 MBh. • High turndown burner rebates (H2203 and H5237) are eligible on boilers ≤ 1,000 BHP.
Measure Description
Code H2205 H2206 H2203 H5237
Rebate
Unit BHP BHP BHP BHP
Linkageless Controls, Burner Upgrade Only
$35 $10 $20 $20
O 2 Trim Controls
High Turndown Burner >10:1, Retrofit on Existing Boiler High Turndown Burner >10:1, New Boiler Replacement
Rebate amount is limited to 50% of the project cost, including equipment and external labor.
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