User Guide

SERVICE TECHNICIAN ONLY — read and follow completely.
Table 10 GOLD WGO oil-red water boiler ratings
®
DOE
AHRI Certied Ratings
Boiler
Model
(9)
Burner Input
Heating
Capacity
Seasonal
Efciency
Net
Rating
(water)
Boiler
Water
Content
Flue
Outlet
Diameter
Minimum
Chimney
Draft
Loss
Thru
boiler
GPH
(3)
MBH
(3)
MBH
(2) (4)
AFUE
%
MBH
(2) (5)
Gallons Inches
(7)
Rect
In
Round
In
Height
Ft
In W.C.
(8)
*WGO-2 0.70 98 86 86.4 75 11.0 7 8 x 8 6 15 0.010
*WGO-3R 0.80 112 98 86.2 85
14.9 7 8 x 8 6 15
0.020
*WGO-3 0.95 133 115 85.3 100 0.020
*WGO-4R 1.00 140 122 86.2 106
13.4 7 8 x 8 6 15
0.010
*WGO-4 1.20 168 145 85.0 126 0.010
*WGO-5R 1.20 168 147 86.1 128
15.9 7 8 x 8 7 15
0.015
*WGO-5 1.45 203 175 85.0 152 0.015
*WGO-6R 1.40 196 171 86.1 149
18.4 7 8 x 8 7 15
0.015
*WGO-6 1.75 245 212 85.0 184 0.015
*WGO-7R 1.60 224 196 86.0 170
20.8 7 8 x 8 8 15
0.015
*WGO-7 2.00 280 242 85.0 210 0.015
**WGO-8 2.30 322 266 (6) - 231 23.3
7 8 x 12 8 20
0.025
**WGO-9 2.55 357 295 (6) - 257 25.8 0.030
* Substitute “P” for completely assembled packaged boiler without burner (WGO-3 through WGO-6 only).
Substitute “A” for boiler only for use with approved burners as listed with AHRI.
** Available only as an “A” unit.
(1) WGO boiler designed with convertible vertical and horizontal ue outlet.
(2) MBH refers to thousands of Btu per hour.
(3) Based on 140,000 Btu/gal.
(4) Based on standard test procedures prescribed by the United States Department of Energy at combustion condition of 13.5% CO
2
and -0.02” W.C. dra overre.
(5) Net AHRI ratings are based on net installed radiation of sucient quantity for the requirements of the building and nothing
need be added for normal piping and pick-up. Water ratings are based on a piping and pick-up allowance of 1.15. An additional
allowance should be made for unusual piping and pick-up loads.
(6) AHRI gross output.
(7) See page 12 for minimum breeching diameter.
(8) Listed dra losses are for factory-shipped settings.
(9) Boiler model suxes: “R” designates a reduced input version. NOTE: A burner nozzle change is required — refer to the burner
instructions or boiler’s rating label for correct selection.
Ratings
Part number 550-141-826/1014
42
GOLD
WGO
OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual