Table of Contents
Advertisement
INSTALLATION COMPLETED
USING INSTALLATION KIT
TEMPERATURE-PRESSURE
RELIEF VALVE
HOT WATER
FLEXIBLE
L_
COLD WATER
OUTLET
WATER
_
t
INL_/
CONNECTORS
_,_
*
Y_
/
_
_
$
SHUTOFF
w'w
T.RE.DEDTO THR ADEDTO
SW ATCOUPL," SWEATCOUPL,NG
3/4" THREADED
_
R
_
_
3/4" THREADED
COUPLING
...............
v__
............... COUPLING
DRAIN
VALVE
TEMPERATURE-
qF-----PRESSURE
RELIEF VALVE
_(D
DISCHARGE
PIPE
O NOT CAP OR PLUG)
FLOOR DRAIN
DRAIN
PAN
FIGURE 16.
T & P Valve and Pipe Insulation (if supplied)
Remove insulation for T & P valve and pipe connections
from carton.
INSULATED
INSULATED
INLET
I
/
FIGURE 17.
Fit pipe insulation over the incoming cold water line and the hot water line.
Make sure that the insulation is against the top cover of the heater.
Fit T & P valve insulation over valve. Make sure that the insulation does
not interfere with the lever of the T & P valve.
Secure all insulation using tape.
Explosion
Hazard
Temperature-pressure
relief valve
must comply with ANSI
Z21.22-
CSA 4.4 and ASME code.
Properly sized temperature-relief
valve must be installed in opening
provided.
Can result
in overheating
and
excessive tank pressure.
Can cause serious injury or death.
This
heater
is provided
with
a properly
certified
combination
temperature - pressure relief valve by the manufacturer.
The valve is certified by a nationally
recognized
testing laboratory that
maintains periodic inspection of production of listed equipment of materials
as meeting
the requirements
for Relief Valves for Hot Water Supply
Systems, ANSI Z21.22 ° CSA 4.4, and the code requirements
of ASME.
If replaced, the valve must meet the requirements of local codes, but not
less than a combination
temperature
and pressure relief valve certified
as indicated in the above paragraph.
The valve
must be marked
with
a maximum
set pressure
not to
exceed the marked
hydrostatic
working
pressure
of the water heater
(150 psi = 1,035 kPa) and a discharge capacity not less than the water
heater input rate as shown on the model rating plate.
For safe operation of the water heater, the relief valve must not be removed
from its designated opening nor plugged.
The temperature-pressure
relief valve must be installed directly into the
fitting of the water heater designed for the relief valve. Position the valve
downward and provide tubing so that any discharge will exit only within 6
inches (15.2 cm) above, or at any distance below the structural floor. Be
certain that no contact is made with any live electrical part. The discharge
opening must not be blocked or reduced in size under any circumstances.
Excessive length, over 30 feet (9.14 m), or use of more than four elbows
can cause restriction and reduce the discharge capacity of the valve, see
Figures 16 or 20.
No valve or other obstruction
is to be placed between the relief valve
and the tank. Do not connect tubing directly to discharge drain unless a
6" (15.2 cm) air gap is provided.
To prevent bodily injury, hazard to life,
or property damage, the relief valve must be allowed to discharge water
in quantities should circumstances
demand.
If the discharge pipe is not
connected to a drain or other suitable means, the water flow may cause
property damage.
Water Damage Hazard
• Temperature-pressure
relief valve
discharge
pipe must terminate at adequate drain.
14
Hide quick links:
Advertisement
Table of Contents
