Weil-McLain PLUS LINE PLUS-E017-A/1206 Manual Do Utilizador

8

Part Number PLUS-E017-A/1206

 Indirect-Fired Water Heaters – Series 3

The boiler-side piping must be equipped with a diaphragm- or bladder-

type expansion tank, NOT a closed-type expansion tank.

1.  Remove plastic shipping cap from 1/2” NPT pipe fitting on top of water heater.
2.  Install automatic air vent provided with water heater, using suitable pipe dope or tape.
.  Unscrew vent cap on air vent one full turn. Leave cap unscrewed one turn for normal

venting.

To reduce risk of excessive pressures and temperatures in water heater,

install temperature and pressure protective equipment required by local

codes,  but  no  less  than  a  combination  temperature  and  pressure  relief

valve certified by a nationally recognized testing laboratory that main-

tains periodic inspection of production of listed equipment or materials,

as meeting the requirements for Relief Valves and Automatic Gas Shutoff

Devices for Hot Water Supply Systems, ANSI Z21.22. This valve must be

marked with a maximum working pressure of the water heater.

A2

1.  Size  T&P  relief  valve  by  the  following  specifications,  unless  they  conflict  with  local

codes:
•  GOLD Plus 0/0/0/80 or

Plus 0/0/80: /” NPT with an AGA Rating of

100,000 BTU/hr, with a long element. Set to relieve at 10 psi. (Watts model 100XL-8

relief valve or equivalent.)

•  PLUS 100/110/119: /” NPT with an AGA Rating of 200,000 BTU/hr, with a long

element. Set to relieve at 10 psi. (Watts model 0XL-8 relief valve or equivalent.)

GOLD Plus,

Plus and PLUS water heaters are exempt from ASME Section VIII per

. Consult local codes for applicability.

2.  Installing T&P relief valve –

GOLD Plus 0/0/0/80 or

Plus 0/0/80 (Page 9)

•  Install T&P relief valve either:

a.  in tapping marked

.

b.  in run (straight through leg) of tee located at domestic hot water outlet of water

heater. (Required for the Commonwealth of Massachusetts.) Use a long element

T&P relief valve.

PLUS 100/110/119 (Page 11)
•  Install T&P relief valve either:

a.  in tapping marked

.

b.  in run (straight through leg) of tee located at domestic hot water outlet of water

heater. (Required for the Commonwealth of Massachusetts.) Use a long element

T&P relief valve.

.  T&P relief valve discharge piping must be:

•  made of material serviceable for temperatures of 20°F or greater.
•  directed so that hot water flows away from all persons.
•  directed to a suitable place for disposal.
•  installed so as to allow complete draining of the T&P relief valve and discharge line.

T&P relief valve discharge piping must not be:
•  excessively long. Using more than 2 elbows or 1 feet of piping can reduce discharge

capacity.

•  directly connected to a drain. Terminate discharge piping within ” from floor. Refer

to local codes.

•  plugged, reduced or restricted.

Do not install any valve between T&P relief valve and tank connection,

or on T&P relief valve discharge piping. Do not plug T&P relief valve or

discharge piping. Improper placement and piping of T&P relief valve can

cause severe personal injury, death or substantial property damage.