Weil-McLain GV90+3 User Manual

Part number 550-143-010/1021
This manual must only be used by a qualied heating installer/service technician. BEFORE installing, read
all instructions in this manual and all other information shipped with the boiler. Perform steps in the order
given. Failure to comply could result in severe personal injury, death or substantial property damage.
Series 2
Gas-Fired Water Boilers
• Installation
• Startup
• Maintenance
• Parts
Boiler Manual
Now With Built In
Low Water Cut O󰀨 Functionality

Weil-McLain GV90+3 Specifications

General

Type	Gas-fired boiler
Fuel Type	Natural gas or propane
Efficiency	90%
AFUE	90%
Heat Exchanger Material	Cast iron
Boiler Type	Water
Vent Type	Direct vent
Minimum Gas Supply Pressure	5 inches WC