Product Overview
WM1405_BRO_001 GV90+
GV90+3 70 65 56 91.9% 3" 3.8 30 ¾” 1” 1” ½” 1” 313 lbs.
GV90+4 105 97 84 91.2% 3" 4.7 30 ¾” 1” 1” ½” 1” 353 lbs.
GV90+5 140 130 113 91.4% 3" 6.0 37 ¾” 1” 1” ½” 1 ¼” 423 lbs.
GV90+6 175 161 140 91.0% 3" 6.9 37 ¾” 1” 1” ½” 1 ¼” 464 lbs.
MODEL
INPUT MBH
DOE SEASONAL
EFFICIENCY AFUE
VENT DIAMETER (3)
BOILER WATER CONTENT GAL.
LENGTH
SUPPLY TAPPING
RETURN TAPPING
GAS CONNECTION SIZE
APPROX. SHIPPING WEIGHT
MINIMUM RECOMMENDED
PIPE SIZE
DOE HEATING
CAPACITY MBH (1)
NET AHRI RATING,
WATER MBH (2)
Notes:
(1) Based on standard test procedures prescribed by the United States Department of Energy.
(2) Net AHRI ratings are based on net installed radiation of sucient quantity for the requirements of the building and
nothing needs to be added for normal piping and pick-up. 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.
(3) GV90+ boilers must be vented directly to the outside.
In the interest of continual improvements in product and performance,
Weil-McLain reserves the right to change specifications without notice.
*Circulators supplied with boiler cannot be removed
and cannot be used as a zone circulator in multiple
zone systems.
** Includes inside and outside plates, vent cap
and hardware.
STANDARD EQUIPMENT:
INSTALLATION FLEXIBILITY WITH MULTIPLE VENTING OPTIONS
ADDITIONAL EQUIPMENT:
Factory Tested
Insulated Extended Steel Jacket
Cast Iron Sections with Built-in
Air Separator
Stainless Steel Secondary Heat
Exchanger with Air Separator
Steel Base
Control Module with
Indicator Lights
Blower Assembly with
Observation Port
Gas/Air Manifold Assembly
Gas/Air Orifice Plate for Natural
Gas (separate plate furnished for
conversion to propane)
Stainless Steel Burner Cone
and Ring Assembly
Negative Regulation Gas Valve
Hot Surface Ignition System
Air Pressure Switch
System Circulator*
Built-in-Bypass Circulator
System with Sensor for
Temperature Control*
Condensate Drain Trap
Sidewall Vent Termination Kit**
40VA Transformer
Electrical Junction Box
30 PSI ASME Relief Valve
(boiler sections & secondary
heat exchanger tested for
50 PSI working pressure)
Water Temperature Limit Switch
Section Block Temperature
Limit Switch
Combination Pressure-
Temperature Gauge
Drain Valve
Flue Thermal Fuse
Sentinel X100 Heating System
Corrosion Inhibitor and Test Kit
Concentric Vent Kit
Condensate Neutralizer Kit
Expansion Tank Package.
#109-sizes 3 through 5; #110-size
6. Shipped in separate carton.
High Altitude Kit
Weil-McLain
5 & 10 Year
Homeowner Protection Plan
Weil-McLain Indirect-fired
Water Heaters
Weil-McLain Pool Heaters
Weil-McLain Baseboard Units