User Guide

3
Table 1A: Dimensions and Connections
Boiler
Model
Depth Width Height
Supply NPT
(inch)
Return NPT
(inch)
Vent
(inch)
Gas NPT
(inch)
Relief Valve
NPT (inch)
Drain
NPT (inch)
CG30E 32 14 40 1¼ 1¼ 4 ½ ¾ ¾
CG40E 32 16 40 1¼ 1¼ 5 ½ ¾ ¾
CG50E 32 19 40 1¼ 1¼ 6 ½ ¾ ¾
CG60E 32 22 40 1¼ 1¼ 6 ½ ¾ ¾
CG70E 32 25 40 1¼ 1¼ 7 ¾ ¾ ¾
CG80E 32 28 40 1¼ 1¼ 7 ¾ ¾ ¾
CG90E 32 31 40 1¼ 1¼ 8 ¾ ¾ ¾
Electrical Requirements: 120VAC, 60 Hz, 1-ph, Less than 12A
Maximum Allowable Working Pressure - 50 psi. Boiler shipped from factory with a 30 psi relief valve.
Boiler
Model
Input (MBH)
(1)
Shipping Weight
(lbs)
Empty Weight
(lbs)
Water Content
(gal)
CG30E 70 254 180 2
CG40E 105 304 231 3
CG50E 140 357 284 4
CG60E 175 405 332 5
CG70E 210 462 382 6
CG80E 245 518 438 7
CG90E 280 564 484 8
Table 1B: Inputs, Weights and Volumes
(1)
Input ratings can be used for elevations up to 2000 ft. Refer to System Start-up and Checkout Sections for elevations 2000 ft.
or higher.