BOILER CONTROLS AND BURNERS
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 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 Rebate Unit Outside Air Reset/Cutout Controls H2221 $100 Control
Reference this table when filling out SECTION 7 on the Rebate Application. EXAMPLE
# OF UNITS (A)
REBATE PER UNIT (B)
TOTAL REBATE (A X B)
REBATE CODE
MANUFACTURER NAME
UNIT MEASURE
MODEL #
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 Rebate Unit Linkageless Controls, Burner Upgrade Only H2205 $35 BHP O 2 Trim Controls H2206 $10 BHP High Turndown Burner, ≥ 10:1, Retrofit on Existing Boiler H2203 $20 BHP High Turndown Burner, ≥ 10:1, New Boiler Replacement H5237 $20 BHP O 2 Trim Controls N-H2206 $10 BHP High Turndown Burner, ≥ 10:1, New Construction N-H5237 $20 BHP Rebate is limited to 50% of the project cost, including equipment and external labor (internal labor eligible for schools and government customers).
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