Before Installation - Noritz proTOUGH NR981-SV Installation Manual

Tankless gas water heater
Hide thumbs Also See for proTOUGH NR981-SV:
Table of Contents

Advertisement

4.

Before Installation

Checkup
• Check the fixing brackets and vent pipe yearly for damage or wear. Replace if necessary.
Do not place outdoors
• This water heater is designed for indoor use only. If installed outdoors, rainwater may enter the
unit causing damage. Wind may also enter the burner chamber causing damage or fire.
Check the Gas
• Check that the rating plate indicates the
correct type of gas.
• Check that the gas supply line is sized for
199,900 Btuh for this unit.
Check the Power
• The power supply required is 120VAC, at 60Hz.
May result in fire or electric shock.
Use Extreme Caution if Using With a Solar Pre-Heater
• Using this unit with a solar pre-heater can lead to unpredictable output temperatures and
possibly scalding. If absolutely necessary, use mixing valves to ensure output temperatures do
not get to scalding levels. Do not use a solar pre-heater with the quick-connect multi-system.
Do Not Use Equipment for Purposes Other Than Those Specified
• Do not use for other than increasing the temperature of the water supply, as unexpected accidents
may occur as a result.
Check Water Supply Quality
• If the water supply is in excess of 12 grains per gallon (200 mg/L) of hardness, acidic or otherwise
impure, treat the water with approved methods in order to ensure full warranty coverage.
4
DANGER
WARNING
CAUTION

Advertisement

Table of Contents
loading

This manual is also suitable for:

Protough nr981-sv-ngProtough nr981-sv-lp

Table of Contents