Weil-McLain EVERGREEN PRO EVG-220 User Manual

Loading ...

Part number 550-100-211/0122

– 56 –

TocauseAUTOMATICreset:TerminalBlockP13#3&#4(EVG control module, left side)

EVGcontrolwillresetautomaticallyaftercircuitisinterrupted.

1. Remove factory-installed jumper and connect isolated contacts of external

limits across P13 pins3 and4 to cause the control to shut down the boiler on

limit opening, then automatically restart 150 seconds aer the limit closes.

2. See drawing at right and wiring diagram (Figure65,page59).

See Figure65,page59 for details.

H. Low water cuto – WHEN REQUIRED

TerminalBlockP12(EVG control module, left side)

1. Install a low water cut-o when required.

2. Wiring Weil-McLain LWCO Kit:

a. When possible, use the Weil-McLain Low water cut-o kit listed in the

back of this manual. It includes a probe-type low water cut-o and pro-

vides a simple harness connection for the wiring.

b. Connect as shown at top right and in the control wiring diagram

(Figure65,page59).

c. e Weil-McLain Low water cut-o kit is included with the boiler.

3. Wiring another LWCO — must have isolated contact:

a. Other low water cut-os can be used with the EVG only if the device uses

an isolated contact for the LWCO function.

b. Connect as shown at bottom right.

See Figure65,page59 for details.

I. Alarm contacts – OPTIONAL

TerminalBlockP16#4&#5(EVG control module, top left)

1. e control’s alarm dry contact (P16, terminals 4 and 5) closes when the

boiler enters manual lockout only.

2. Connect these terminals for remote alarm notication.

3. Contact electrical ratings: 24VAC or less; 0.5 amp or less.

See Figure65,page59 for details.

J. Additional heat demand contacts – OPTIONAL

TerminalBlockP16#6&#7(EVG control module, top left)

1. e control module can be set to activate another heat source using its ad-

ditional heat demand dry contacts through terminal block P16 pins6 &7.

2. Connect these terminals to call for heat from the other heat source.

3. Contact electrical ratings: 24VAC or less; 0.5 amp or less.

4. Set the control to activate the heat demand contacts as needed.

5. See EVG Advanced Manual to congure.

See Figure65,page59 for details.

(see wiring diagram, Figure 65, page 59)(continued)

220 /29 9/3 00 /39 9 

Loading ...

Weil-McLain EVERGREEN PRO EVG-220 Gas Boiler Evergreen High Efficiency Gas Boiler