Boiler Manual
Part number 550-100-305/1016
This manual must only be used by a qualified heating installer/service technician. Failure to comply could result in
severe personal injury, death or substantial property damage.
When calling or writing about the boiler— Please have boiler model number from the boiler rating label.
Quick Start Guide
Pages 3 & 4
Aqua Balance
WMB-155C
Wall Mount Gas-Fired
Combination Boiler – Heating and Domestic Hot Water
• Installation
• Startup
• Maintenance
• Parts
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