Table of Contents
Advertisement
temperature and pressure relief valve to make the valve
operate freely. If the heater is installed in a closed
system, the temperature and pressure relief valve may
drip at times. If the temperature and pressure relief valve
discharges a full stream of water, have the system checked.
See "Pressure Build-Up in Water System" (Page 6). If the
temperature and pressure relief valve on the appliance
discharges periodically, this may be due to thermal
expansion in a closed water supply system (see "Pressure
Build-Up in Water System"). Contact the water supplier
or local plumbing inspector on how to correct this
situation. Do not plug the temperature and pressure
relief valve.
G
ENERAL
Water piping, ½ ttings, and valves must be properly installed for the correct and safe operation of this water heater.
Please note the following:
The system should be installed only with piping that is suitable for potable (drinking) water such as
copper, CPVC, or polybutylene. PVC water piping may be used on the cold water inlet supply but not within
18 inches of the cold water connection on the water heater.
DO NOT
use PVC piping on the hot water outlet, space heating supply, or space heating return.
DO NOT
use any pumps, valves, or ½ ttings that are not compatible with potable water.
DO NOT
use valves that may cause excessive restriction to water ¾ ow. Use full ¾ ow ball or gate valves
only.
DO NOT
use 50/50 tin-lead solder (or any lead based solder) in potable water lines. Use 95/5 solder or other
equivalent material.
DO NOT
tamper with the thermostat, gas valve, blower, electrical components, or temperature and pressure
relief valve. Tampering with any of the components is dangerous and can result in death, severe injury, or
property damage. Tampering voids all warranties. 3RP] UYEPM½ ed technicians should service these
components.
DO NOT
use this water heater as a replacement for an existing boiler installation.
DO NOT
use with piping that has been treated with chromates, boiler seal, or other chemicals.
DO NOT
add any chemicals to the system piping which will contaminate the potable water supply.
P
B
RESSURE
UILDUP IN
W
S
ATER
YSTEMS
The water utilities supply meter may contain a check
valve, back blow preventer, or water pressure reducing
valve. This will create a closed water system. During the
heating of the water, water expands creating a pressure
build-up in the water system. A temperature and pressure
relief valve, must be installed on the water heater (150 PSI
maximum pressure setting, see Temperature and Pressure
Relief Valve-Figure 3). To prevent the temperature and
pressure relief valve from discharging hot water, a loss
of energy, and reduce the possible buildup of lime on the
water temperature and pressure relief valve seat.
I
NFORMATION
CLOSED
VALVE
TEMPERING
It is recommended that a tempering valve be installed,
per the manufacturer's instructions, for water heaters
supplying domestic hot water (See PAGE 8 for a sample
tempering valve installation).
An expansion tank must be installed on the cold water
supply line. For every 50 US gallons of stored water, the
expansion tank must have a minimum capacity of 1.5 US
gallons. See PAGE 9. It requires both T&P valves and
expansion tanks for closed systems.
heater will void the warranty if there
is a failure to install a properly sized
I
NSTALLATION
The manufacturer of this water
expansion tank.
7
Hide quick links:
Advertisement
Table of Contents
