State GTS-140-PIH User Manual download pdf (Page 40)

40 Page

FLOW

• This water heater comes equipped with heating blocks to protect it against damage associated with

freezing.

• For this freeze protection system to operate, there has to be electrical power to the water heater.

Damage to the heat exchanger caused by freezing temperatures due to power loss is not covered

under the warranty. In cases where power losses can occur, consider the use of a backup power supply.

• The freeze protection system will activate when the freeze protection thermostat senses temperatures

at 36.5 °F (2.5 °C) or lower.

• For the 140 Indoor (T-H3M-DV) model:

• In any areas subject to freezing temperatures, the manufacturer highly recommends an indoor

installation with an indoor model. In such an installation, freezing issues can only occur if cold

air enters through the venting into the heat exchanger, whether by negative pressures within

the installation location or by strong outside winds.

• The manufacturer also highly recommends the use of a backflow preventer (sold separately)

to minimize the amount of cold air entering through the exhaust venting when the water

heater is off.

• It is the installer’s responsibility to be aware of freezing issues and take all preventative measures. The

manufacturer will not be responsible for any damage to the heat exchanger as a result of freezing.

• If you will not be using your heater for a long period of time:

1. Completely drain the water out of the water heater. Refer to p. 41.

2. Disconnect power to your heater.

This will keep your water heater from freezing and being damaged.

Only pipes within the water heater are protected by the freeze protection

system. Any water pipes (hot or cold) located outside the water heater will not

be protected. Properly protect and insulate these pipes from freezing.

CAUTION

FREEZE PROTECTION SYSTEM

Appliance/Use

Flowrate

GPM(US) L/min

Lavatory Faucet 1.0 3.8

Bath Tub 4.0 – 10.0 15.2 - 37.8

Shower 2.0 7.5

Kitchen Sink 1.5 5.6

Dishwasher 1.5 5.6

Washing machine 4.0 15.2

HouseholdFlowRates

Taken from UPC 2006

• The flow rate through the water heater is limited to

a maximum of 7.0 GPM (26.5 L/min).

• The temperature setting, along with the supply

temperature of the water will determine the flow

rate output of the water heater.

• Please refer to the temperature vs. gallons per

minute charts on p. 54 to determine the likely flow

rates based on your local ground water temperature

and your desired outlet water temperature.

• Refer to the table to the top right for typical

household plumbing fixture flow rates to determine

what the water heater can do in a household

application.

• Based on the United States Department of Energy

method of testing water heater output, the water

heater is rated for gallons per minute (GPM) (liters

per minute (L/min)) for Natural Gas and Propane,

when raising the water temperature by 77 °F

(43 °C) (from 58 °F to 135 °F (14 °C to 57 °C)).

See the chart on the right.

Unit: GPM (L/min)

Model Flowrate

140 (T-H3M)

Indoor

3.0 (11.2)

Outdoor

Normal Operaon

Owner's Guide

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State GTS-140-PIH User Manual Page 40

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