American Standard VAPORSHIELD Residential 30 Operating, Installation And Service Manual page 15

DO NOT
DO NOT use with piping that has been treated with chromates, boiler seal or other chemicals.
DO NOT add boiler treatment or any chemicals to any heat piping, since the piping contains potable water.
DO NOT use with ferrous piping. The system should be installed only with new piping that is suitable for potable water, such as
copper or polybutylene.
DO NOT use with PVC piping.
DO NOT
DO NOT
USE FULL FLOW BALL OR GATES VALVES ONLY
DO NOT tamper with the thermostat, gas valve, igniter control or temperature and pressure relief valve.Tampering with any
DO NOT use 50/50 solder in potable water lines.
in the domestic (potable) hot water supply to limit the RISK OF SCALD DAMAGE (See PAGE A).
suitable for potable water will normally eliminate this weeping condition. Please read and follow the manufacturer's instructions
for the installation of such tanks.
SOLAR INSTALLATION
When this appliance is used ASA SOLAR STORAGE HEATER OR AS A BACK UP FOR THE SOLAR SYSTEM, the following
warning applies.
WARNING:
will cause the high limit control to function
or open and shut off gas supply.The high
limit control is a single use type that will
require the replacement of the thermostat
before the burner can operate. If the water
supply from the solar system is above I 20°F,
a tempering valve or temperature limiting
valves must be installed in the water supply
line to limit the supply temperature to 120°F.
CAUTION
INSULATION BLANKET
water heaters are not recommended. However, some governing bodies
require their use in new construction of additions, regardles of how
not to restrict the proper function of the heater. The manufacturer of this
heater will not be liable for incidents arising or resulting, from the use of
of parts which may have resulted from the use of such insulation blankets.
passes, the blanket may sag causing an obstruction of this air passage,
resulting in an unsafe operating condition.
Do not apply insulation to the top of a gas water heater. This will affect the
operation of the drafthood, resulting in an unsafe operating condition.
Do not cover any access panels leading to burner compartments,
thermostat(s) control, doors, or temperature & pressure relief valve on the
water heater.
Do not cover any labels or instruction material applied to this water heater.
these safety labels and instruction materials must remain on the water
heater and be visible for reference by the user. Do not attempt to remove
these labels, as they are a permanent part of this water heater as required
10