Weil-McLain PLUS LINE PLUS-E017-A/1206 Manuel D’Utilisation

1

Part Number PLUS-E017-A/1206

 Indirect-Fired Water Heaters – Series 3

•  Union on domestic hot water outlet should be piped at a higher elevation than domestic

water drain valve. This will make draining water heater easier.

•  Install unions for easy removal of water heater. Use dielectric unions or couplings to protect

hot and cold water fittings from corrosion when connecting dissimilar materials such as

copper and galvanized iron pipe.

•  If copper pipe is used for domestic water connections, first solder pipe to a threaded adapter,

and then screw adapter into cold water inlet on top of water heater. Inlet contains an

internal plastic dip tube rated at 20°F, which can be damaged by heat from soldering.

•  When the supply pressure is higher than 0 psig, install a pressure reducing valve on cold

water supply line to prevent water loss through T&P relief valve.

•  If water heater will replace tankless coil in boiler,` disconnect piping to coil or remove coil

from boiler and replace with a cover plate. Allow water to drain from coil. Do not plug

tankless coil.

Plugging tankless coil inlet and outlet will result in severe personal injury,

death or substantial property damage.

•  Boiler water (including additives) must be practically non-toxic, having toxicity rating or

class of 1, as listed in Clinical Toxicology of Commercial Products.

•  If  antifreeze  is  used  in  boiler  system,  local  codes  may  require  a  backflow  preventer  on

cold water supply line. Use antifreeze specifically intended for hydronic heating systems.

Inhibited propylene glycol is recommended.

Do not use automotive, ethylene glycol or petroleum-based antifreeze. Do

not use any undiluted antifreeze. This can cause severe personal injury,

death or substantial property damage.

A2