Specifications

Armstrong International

IOM-706

Flo-Direct Water Heater

Page 3 of 45

Typical System

Flo-Direct water heaters are highly efﬁcient, low maintenance systems.

� Complete thermal exchange technology means no fuel is used for warm-

up or idle time and no energy is lost through conversion or exchange.

� Without internal moving parts, there is very little to maintain.

� Water conditioning is not required.

Common options:

�

Gravity drain (without a transfer pump)

� Standard (consistent incoming water temperature) or modulating

burner actuator

� Natural gas or propane fuel

� Remote or integral tank

Other available options include:

� Skid-packaged heaters

� Performance matched components

� Ultra-low NOx emissions

� Non-standard fuels

� Storage tank heating element

Peripheral components:

� Digital mixing valves

� Variable frequency drive pump

� Hose stations

Optional services:

� Turn-key installation

� Installation project management

� System assessment and optimization

� Energy conservation measures (ECM)

For further information, visit http://www.armstronginternational.com/ﬂo-direct

or contact Armstrong.

Flo-Direct systems are highly customizable at both a system

and component level. The information in this manual

generally uses a 5 million Btu/hr unit and is intended to

be typical. Illustrations are not intended to be complete or

correct in every detail. System-speciﬁc drawings, including

wiring schematics, are provided with each unit and should be

referred to when installing and operating your system.

Note: Armstrong provides separate IOMs for the burner, blower, and for optional

components. Consult the appropriate document for more information.