Справочник Пользователя для Lennox International Inc. GWB9-075IH-2

Electrically bond boiler to ground in accordance with       

requirements of authority having jurisdiction.  Refer to:

• USA- National Electrical Code, ANSI/NFPA 70.
• Canada - Canadian Electrical Code, Part I, CSA C22.1: 

Safety Standard for Electrical Installations.

Prior to making any line Voltage connections, turn OFf 

electrical power at fuse box.

Run separate 115 Volt circuit from  separate over 

current protection device in electrical service entrance 

panel.  This should be 15 ampere circuit. 

See

 

  for diagram showing service 

switch junction box and power supply connection 

points.  

Locate service switch in vicinity of boiler. Verify it is 

turned OFF during service or maintenance.
• Connect black (hot) lead from power supply to black 

wire labeled L 120 VAC. 

• Connect white (neutral) lead from power supply to 

white wire labeled N 120 VAC.

• Connect green (ground) lead from power supply to 

green wire labeled G 120 VAC.

Run 14 gauge or heavier copper wire from boiler to 

grounded connection in service panel or properly driven 

and electrically grounded ground rod.

• Thermostat location has important effect on operation 

of boiler system.

• Follow instructions included with your thermostat.
• Locate thermostat about fi ve feet above fl oor on inside 

wall. 

• Mount directly on wall or on vertical mounted outlet 

box. 

• It should be sensing average room temperature.

Set heat anticipator (where applicable) at 0.7 amps. 

Connect 24 Volt thermostat leads to two(2) yellow wires 

located in junction box, located on outer jacket of boiler. 
See  Figure 20, Page 31  for junction box and thermostat 

fi eld wiring connections.

Things to Avoid when Locating Thermostats

Corners and alcoves

Behind doors

Concealed pipes or ducts

Concealed pipes     

Fireplace

Stairwells - drafts

TV sets

Radios

Unheated rooms on

other side of wall

Lamps

Direct sunlight

Kitchens

See  Figure 20, Page 31  for circulator pump fi eld wiring con-

nections. 
Supplied 5 foot wiring harness with fl exible metal conduit 

for connection from circulator pump to junction box. 
If two 120 Volt circulator wire terminals inside junction box 

are not used, leave two wire nuts to prevent short circuit.

Electrical shock hazard.  Turn OFF electrical power 

supply at service panel before making electrical  

connections.  Failure to do so could result in death 

or serious injury.

  

Label all wires prior to disconnection when servicing 

controls. Wiring errors can cause improper and 

dangerous operation. Verify proper operation after 

servicing.