State GTS-140-PIH User Manual download pdf (Page 29)

29 Page

Installaon

Installaon Manual

• Inordertopurgeairinwaterpipeswithinaclosed-loopsystem,anairvent

and air separator should be installed in the system.  Required circulation

flow ratesare labeled next to each applicationdiagram. These flow rate

requirementsmustbefollowed.

• Toxic chemicals used in boiler treatments such as alcohol, glycerol and glycol

groups must not be introduced into the system if the system incorporates an

open-loop potable water system.

• The water heater can be used to supply potable water and space heating and

shall not be connected to any heating system or component(s) previously

used with non-potable water where any chemicals were added to the water

heating appliances.

• When the system requires water for space heating at temperatures higher

than required for other uses, a means such as a mixing valve shall be installed

to temper the water for those other uses in order to reduce scald hazard

potential.

• Water temperature over 125 °F (52 °C) can cause severe burns instantly or

death from scalding.

• Chemicals such as diluted Glycol can be used for radiant floor, Hydro/fan coil

air or Baseboard heating only. The diluted solution of glycol must contain

between 25 and 55 % of Glycol. Be aware that in closed-loop glycol systems,

low pressure in the heat exchanger can cause low-temperature boiling,

resulting in excessive noise and damage to the water heater. Consult with the

glycol maker for specifications prior to use.

WARNING

Air vent

Hotwateroutlettoxtures

Recirculaon

pump

Air

separator

Check valve

Y-Strainer

Cold water inlet

Expansion tank

Gas supply

Ball valves

Unions

Hot water outlet

Cold water inlet

Gas inlet

APPLICATIONS

-Space-Heang Applicaons-

-Recirculaon-

*The recirculation pump is to be controlled by:

-Dual-set aquastat (recommended w/timer)

*The recirculation pump is to provide no less than 2 GPM (7.5 L/min) and no more than 4 GPM (15 L/min) through

each activated unit in the system.

This is a concept drawing only.

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State GTS-140-PIH User Manual Page 29

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