Weil-McLain SGO SERIES 4 OIL-FIRED STEAM BOILER SGO-7 User Manual

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SGO 3-5 tankless

heater control location

SGO 6-9 tankless heater

control location

Flow

regulating valve

Automatic

mixing valve

Mixed

Hot

Cold

Cold water

supply

12" Min.

Connect tankless heater piping (continued)

Part number 550-142-330/0421

SGO

OIL-FIRED NATURAL DRAFT STEAM BOILER — SERIES 4 — Boiler Manual

SERVICE฀TECHNICIAN฀ONLY฀—฀read฀and฀follow฀completely.

ese single wall heat exchangers comply with National Standard

Plumbing Code provided that:

•Boiler water (including additives) is practically non-toxic,

having a toxicity rating or class of 1, as listed in Clinical

Toxicology of Commercial Products.

•Boiler water pressure is limited to max. 15psig by approved

steam relief valve.

Figure฀17 Tankless heater piping

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Weil-McLain SGO SERIES 4 OIL-FIRED STEAM BOILER SGO-7 Residential Boilers