Install Instructions

5
ESC Series
Boiler Model Input (MBH) Output (MBH)
Net I=B=R
Water (MBH)
AFUE (%)
ESC3 70 60 52 85.5
ESC4 105 90 78 85.4
ESC5 140 120 104 85.3
ESC6 175 150 130 85.2
ESC7 210 179 156 85.0
ESC8 245 208 181 84.5*
ESC9 280 238 207 84.0*
* Do not meet ENERGY STAR requirements
Ratings
SPECIFICATIONS
Boiler
Model
Depth Width Height
Supply NPT
(inch)
Return
NPT (inch)
Vent
(inch)
Air
Intake
(inch)
Gas NPT
(inch)
Relief Valve
NPT
(inch)
Drain
IPS
(inch)
ESC3 33 12¾ 41 1¼ 1¼ 3 3 ½ ¾ ¾
ESC4 33 15½ 41 1¼ 1¼ 3 3 ½ ¾ ¾
ESC5 33 18½ 41 1¼ 1¼ 3 4 ½ ¾ ¾
ESC6 33 21½ 41 1¼ 1¼ 3 4 ½ ¾ ¾
ESC7 33 24¾ 41 1¼ 1¼ 3 5 ¾ ¾ ¾
ESC8 33 27¾ 41 1¼ 1¼ 4 5 ¾ ¾ ¾
ESC9 33 30¾ 41 1¼ 1¼ 4 5 ¾ ¾ ¾
Dimensions, Weights and Connections
Electrical Requirements: 120VAC, 60 Hz, 1-ph, 15A
Boiler
Model
Allowable Supply Water
Temperature (°F)
Minimum Return Water
Temperature (°F)
Minimum Flow
(GPM)
Waterside Pressure Drop
at 20°F DT (Ft. of Head)
ESC3 130-220 110 None <1
ESC4 130-220 110 None <1
ESC5 130-220 110 None <1
ESC6 130-220 110 None <1
ESC7 130-220 110 None <1
ESC8 130-220 110 None <1
ESC9 130-220 110 None <1
Water Temperatures and Flows
Boiler Model Shipping Weight (lbs) Empty Weight (lbs) Water Content (gal)
ESC3 250 170 2
ESC4 300 220 3
ESC5 350 270 4
ESC6 410 320 5
ESC7 460 370 5
ESC8 510 420 6
ESC9 560 470 7
Weights and Volume