Brochure

WM2101_BRO_016_WTGO
DIMENSIONS
In the interest of continual improvement in product and
performance, Weil-McLain reserves the right to change
specifications without notice.
*
Tapping Location Size (in.) Control Tappings
A 1½ Alternative return — semi-packaged & knocked-down units only
G ¼ Pressure/temperature gauge
D ¾ Drain valve
F ¾ High limit/circulator control
E ½ Piping to expansion tank or automatic air vent
R ¾ Relief valve
Boiler
Size
Supply C (in.)
Return
(in.)
Dimension (in.) Tankless Heater
Packaged
with Circulator
(circulator flange)
Semi-
Packaged
& Knocked-
Down B L Number
Inlet &
Outlet
(NPT) (in.)
Temp
Control
(NPT) (in.)
WTGO-3 1¼ 1½ 1½ 13½ 16⅞ WT-14 ½ ¾
WTGO-3L 1¼ 1½ 1½ 10½ 13¾ WT-14 ½ ¾
WTGO-4 1¼ 1½ 1½ 13⅝ 16⅞ WT-14 ½ ¾
WTGO-5 1¼ 1½ 1½ 16⅞ 20 WT-14 ½ ¾
WTGO-6 1¼ 1½ 1½ 20 22⅛ WT-14 ½ ¾
WTGO-7 not applicable 1½ 1½ 23⅛ 26¼ WT-20 ½ ¾
WTGO-8 not applicable 1½ 1½ 26¼ 29⅜ WT-20 ½ ¾
WTGO-9 not applicable 1½ 1½ 29⅜ 32½ WT-20 ½ ¾
STANDARD EQUIPMENT:
BOILER
■
Factory tested and assembled
cast iron section assembly
(jacket and collector hood are not assembled
on 7, 8 and 9 section blocks)
■
Tankless heater (Packaged* units) or
tankless opening cover plate (Semi-
Packaged* & Knocked-Down* units)
■
Insulated steel jacket
■
Aluminized steel flue collector hood
with flue cap on top outlet
(convertible to rear outlet)
■
Swing-away burner
mounting door
■
Refractory blanket and target wall in
combustion area
■
Circulator (when ordered)
− Sizes 3–4: Taco 007e
− Sizes 5–6: Taco 007
■
Combination limit control, tankless
heater control and LWCO with
integrated service switch
■
Two vent pipe brackets
■
Pressure / temperature gauge
■
30 PSI ASME relief valve (boiler sections
tested for 50 PSIG working pressure)
■
Drain valve
■
Barometric damper
OPTIONAL EQUIPMENT:
■
High-eciency flame-retention oil
burner (Beckett AFG, Carlin EZ or Riello).
Specify 2-Stage fuel unit (optional,
Beckett)
if required
■
Vent damper kits
LIMITED TRANSFERABLE
WARRANTY:
■
Residential: 20 Years Heat Exchanger;
2 Years Parts
■
Commercial: 10 Years Heat Exchanger;
1 Year Parts
4
Boiler model suxes:
R = Reduced input version—a burner nozzle change may
be required, refer to the burner instructions or boiler's
rating label for correct selection. No separate/additional
damper kit required.
D = High input version—installation of the separate High
Input Vent Damper kit (part # 381800515) is required,
also a burner nozzle change may be required, refer to
the burner instructions or boiler's rating label for correct
selection.
RD = ENERGY STAR 87% AFUE compliant only when
installed with the separate ES Vent Damper kit (part
numbers 381800501 through 381800506) and at the
reduced burner rate.
L = Designates a boiler with a special narrow front
section (1 1/2 supply tapping) for space constraint
installations (i.e., Levittown).
5
No. 2 fuel oil-Commercial Standard Specification CS75-
56. Heating value of oil-140,000 BTU / Gal.
6
Based on standard test procedures prescribed by the
United States Department of Energy.
7
MBH refers to thousands of BTU per hour.
8
AHRI gross output.
9
Net AHRI ratings are based on net installed radiation
adequate for the requirements of the building, including
a piping and pickup allowance of 1.15-sucient for normal
conditions. Provide additional allowance only for unusual
piping and pickup loads.
10
Tankless heater rating is in gallons of water per minute,
heated from 40°F to 140°F with 200°F boiler water
temperature-tested in accordance with I-W-H testing
and rating standard for indirect tankless water heaters
test with boilers.
RATINGS
Burner
Input
Rating
AHRI Certified
Ratings
Minimum
Chimney Size
ENERGY STAR* Model
4
GPH
5
MBH
5
Heating Capacity (MBH)
6,7
Net Ratings (MBH)
7,9
AFUE Tankless Heater Intermittent Draw Rating
10
Draft Loss Through Boiler (In. w/c) Rectangular (In.) Round (In.) Height (Ft.) Approx. Shipping Weight (Lbs.)
WTGO-3LR 0.70 98 86 75 86.4 3.25 .010
8 x 8
6
15
560
WTGO-3LD 0.95 133 115 100 86.0 3.25 .010
560
WTGO-3R 0.80 112 98 85 86.2 3.25 .020
610
*
WTGO-3RD 0.80 112 98 85 87.0 3.25 .010
610
WTGO-3D 0.95 133 115 100 86.0 3.25 .020
610
WTGO-4R 1.00 140 122 106 86.2 3.75 .010
660
*
WTGO-4RD 1.00 140 123 107 87.0 3.75 .010
660
WTGO-4D 1.20 168 146 127 86.0 3.75 .010
660
WTGO-5R 1.20 168 147 128 86.1 4.00 .015
7
775
*
WTGO-5RD 1.20 168 148 129 87.0 4.00 .015
775
WTGO-5D 1.45 203 176 153 86.0 4.00 .015
775
WTGO-6R 1.40 196 171 149 86.1 4.25 .015
875
*
WTGO-6RD 1.40 196 173 150 87.0 4.25 .015
875
WTGO-6D 1.75 245 213 185 86.0 4.25 .015
875
WTGO-7R 1.60 224 196 170 86.0 5.50 .015
8
930
*
WTGO-7RD 1.60 224 197 171 87.0 5.50 .015
930
WTGO-7D 2.00 280 244 212 86.0 5.50 .015
930
WTGO-8 2.30 322 266 231
8
- 5.75 .025
8 x 12 20
1,030
WTGO-9 2.55 357 295 257
8
- 6.00 .030
1,135
Boiler order options include
Packaged boiler: Assembled block with jacket, collector hood and controls installed (order burner separately); sizes 3-6
Semi-packaged boiler: Assembled block with jacket and collector hood installed (order burner and trim separately); sizes 3-6
Knocked-down boiler: Assembled block, all other components are cartoned and shipped separately; all sizes
7" diameter
7 ⁄"
20 ¼"
6 ¼"
7 ⁄"
14 ⅛"
4 ⅜"
diameter
burner
opening
for 7"
vent
pipe
B
15 ½"
29 ⁄"
9 ½"
35 ⅝"
3 ⁄"
2 ⅝"
L
DReturn
14"
approximately
E
R
A
G
F
Supply
(C)
Side Front Back Intermediate