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Weil-McLain representative or see separate Ultra boiler piping guides. Circulators. The boiler circulator (Taco 007 for Ultra-80 and -105; Taco 0014 for. Ultra-155 Summary of Contents of user manual for Weil-McLain 230. Page 1 Gas-fired water boiler Ultra-80, -105, -155, -230 & -310 • Installation • Startup • Maintenance14 Mar 2017 Read all instructions, including this manual, the Ultra Control Supplement and the On 155, 230 and 310 models, the gas/air mixture enters the blower. This document is a supplement to the Ultra Boiler Manual, and must only be used by a qualified Boiler models: Ultra-80, -105, -155, -230 & -310. Gas-fired. boilers, refer to the boiler manual or contact Weil-McLain for the correct parts. Ultra-105. 383-500-645. SPECIAL. ORDER. See page 44 or kit. Ultra-155. manual. Vent / air pipe size options (PVC sizes):. Ultra-80, 105: 2" or 3”. Ultra-155: 3". Ultra-230: 3" or 4”. Ultra-299, 399: 4”. Slope pipes ?” per foot toward boiler. This manual must only be used by a qualified heating installer/service technician. Models Ultra-155, 230 & 310 — Air enters the boiler enclosure through. Gas-fired water boiler, Conversion instructions altitudes over 5500 feet • Read online or download PDF • Weil-McLain ULTRA 155 User Manual. Weil-mclain ULTRA Ultra-155 Pdf User Manuals. View online or download Weil-mclain ULTRA Ultra-155 Manual.